Dynamic magnetic information storage or retrieval inventions 09/06

20060209442 - Controlled resistance capacitors: Some embodiments of the present invention include capacitors with controlled resistance....

20060209444 - Hard disk drive with reduced power consumption, related data processing apparatus, and i/o method: A hard disk drive is disclosed and related methods of reading/writing data are disclosed. The hard disk drive includes a disk serving as a main data storage medium, and first and second buffers storing data to be stored on the disk, as well as a controller defining a data I/O...

20060209443 - Magnetic recording device: A magnetic recording device comprising a magnetic recording medium, a read-write channel for modulating write data, writing it on the magnetic recording medium, reading data from the magnetic recording medium, and demodulating the read data, and a processor for supplying the write data to the read-write channel and being supplied...

20060209445 - Magnetic disk drive and write current control method therein: A magnetic disk drive and a write current control method are provided in which stable writing can always be carried out at the time of information writing without being subject to a thermal effect due to a write current. In the magnetic disk drive using a write head for writing...

20060209446 - Method for erasing data from magnetic tape storage media: Disclosed is a method, for erasing data from a magnetic tape storage medium (92) housed in a cartridge (86) containing a memory in which are stored the last written track position (yy) of the last written, most recent information and the last track position (xx) of past information written in...

20060209448 - Recording apparatus, server apparatus, recording method, program, and storage medium: A data recording apparatus recording data of a CD on an HDD in a manner such that the content of record in the CD is faithfully accounted for and shortening an operation time for a synchronized ripping operation. When the data recording apparatus reads, from the CD, track data managed...

20060209447 - System and method for protecting head elements of a tape drive: A method and apparatus is provided to protect head elements on a head of a head guide assembly, having a magnetic tape, and a leader coupled to the magnetic tape at a first end, such that the height of the leader is less than the height of the magnetic tape....

20060209450 - Auto-servo tape system and associated recording head: A recording head comprises a first tape-head contact area including a first write element and a first read element, which itself may include an MR sensor element. The first read element is laterally offset as to the first write element, and no portion of the first read element lies in...

20060209451 - Method and apparatus for controlling disc drive using counter-electromotive force: A method and an apparatus to control a disc drive, and more particularly, a method and an apparatus to control a disc drive using a counter-electromotive force, prevents collision and malfunction of a transducer and a disc by determining external vibrations and magnitude of a shock without installing an additional...

20060209449 - Propagation self servowrite using self-written spiral signals for in-process calibration: The operation of propagation self servowrite can be improved by using spirals written upon the disk. The spirals can be used to reduce the DC drift of the propagation of the self servowrite. The writing of the spirals can be improved by using the back EMF signal for the VCM...

20060209452 - Method and apparatus for writing data in a disk drive: According to one embodiment, there is to provide a data write method which is applied to a disk drive, for recording data on a disk medium by a head mounted on a rotary type actuator. The method carries out a track pitch conversion processing so that a track pitch of...

20060209453 - Magnetic recording and reproducing apparatus and control method for the same: A magnetic recording and reproducing apparatus includes: a magnetic recording medium onto which servo information including position information is recorded by a plurality of concavo-convex patterns formed by a magnetic layer; a gate circuit that extracts a part of a reproducing signal of the concavo-convex patterns by removing an end...

20060209454 - Magnetic recording and reproducing apparatus and control method thereof, magnetic recording medium, and stamper for manufacturing of magnetic recording medium: A magnetic recording and reproducing apparatus has a magnetic recording medium onto which servo information including position information is recorded by a concavo-convex pattern formed by a magnetic layer and a signal processing circuit that generates position control signal of a magnetic head based on amplitude values of fundamental wave...

20060209455 - Two-pass-per-track servo burst patterns: A rotatable storage media includes multiple concentric data tracks and servo sectors embedded within the tracks. In some embodiments, the servo sectors have servo burst patterns including a plurality of burst groups, with each of the burst groups including a trimmed burst that is stitched and trimmed such that is...

20060209456 - Disk drive apparatus: In a disc drive apparatus, a magnetic disc is housed in a casing and rotated by a motor mechanism. A magnetic head for recording information in a disc surface region and for reproducing the recorded information is supported by a carriage arm such that the magnetic head is swingable. Formed...

20060209457 - Spindle motor: A spindle motor (100) is composed of a rotor section (R) having a chucking magnet (3) for sucking in a disc hub (11) made from a magnetic material, wherein the rotor section (R) is rotatably maintained with respect to a stator section (S). The chucking magnet (3) is further composed...

20060209459 - Perpendicular magnetic recording head and recording medium for recording data using the same: A perpendicular magnetic recording head and a recording medium for recording data using the same. The perpendicular magnetic recording head includes: a main pole whose lower end has a predetermined width t1; a return pole whose upper end is connected to the main pole and whose lower end is separated...

20060209458 - Soft magnetic film and thin film magnetic head: The soft magnetic film has superior soft magnetic characteristics and is suitable for a thin film magnetic head. The soft magnetic film of the present invention comprises: a magnetic base layer including a ferromagnetic element; and a ferromagnetic layer being piled on the magnetic base layer. The soft magnetic film...

20060209460 - Tape cleaning apparatus: Devices, methods and systems for cleaning a tape media within a tape cartridge are described, particularly removable cleaning device inserts, and cartridges adapted to use cleaning device inserts. Removable cleaning device inserts generally include a holdfast surface and one or more tape cleaners comprising a cleaning surface. A holdfast surface...

20060209461 - Housing case for recording medium built-in cartridge, and cartridge built-in package using the same: A housing case for a recording medium built-in cartridge of the present invention is for housing the recording medium built-in cartridge having an air vent. The housing case includes: a housing case body including a housing part and a lid part for opening and closing the housing part; and at...

20060209463 - Head suspension: A head suspension includes an arm turned around a spindle, the load beam, and a flexure. The load beam includes a rigid part, a resilient part, and a head. The rigid part has a body and a joint. The joint is connected to a first end of the resilient part...

20060209462 - Head suspension assembly contributing to constant flying height of head slider: An adhesive layer is interposed between a head slider and a support member for fixing the head slider to the support member. A deformation body is interposed between the head slider and the support member. The deformation body has a coefficient of thermal expansion larger than that of the adhesive...

20060209464 - Silicon-made magnetic head slider and method of producing the same: Embodiments of the invention provide a magnetic disk device which lowers the cost, maintains reliability by compensating the thermal dent or protuberance caused by a change in the environmental temperature, makes it possible to increase the recording density by decreasing the floating amount of the slider, to increase the capacity...

20060209465 - Head suspension: The head suspension includes a base plate turned around a spindle, a load beam, and a flexure. The load beam includes the rigid part, a resilient part, and a head. A base end of the rigid part is attached to the resilient part, which is supported with the base plate....

20060209466 - Head suspension mechanism: There is provided a head suspension mechanism capable of more effectively restraining sway mode and second-order torsion mode vibrations of the head suspension mechanism caused by an air flow. A flange portion having a free end portion 23c on the base part side is formed at both edges close to...

20060209467 - Digital magnetoresistance sensor: A digital MR sensor with a high magnetoresistance ratio is provided. The MR sensor includes a first magnetic element; and a second magnetic element at least a part of which is resiliently deformable so as to contact with or be separated from the first magnetic element according to a direction...

20060209468 - Perpendicular magnetic disk apparatus: According to one embodiment, there is provided a perpendicular magnetic disk apparatus having a magnetic disk including a soft underlayer and a perpendicular magnetic recording layer, and a magnetic head having a write element including a main pole, a return pole and an exciting coil, and a read element including...

20060209469 - Magnetoresistance effect reproduction head: A magnetoresistance effect reproduction head includes a shield part composed of a lower shield and an upper shield and prevents fluctuations in head output caused by the magnetic domain structure of the magnetic shield layer, and therefore has a more stabilized head output. In a magnetoresistance effect reproduction head including...

20060209470 - Thin film magnetic head: A thin film magnetic head has an air bearing surface and comprises magnetic shield layers, an MR element, bias-applying layers, and a hard magnetic layer. Each of the magnetic shield layers has an end face forming the air bearing surface, and an end face located opposite to the end face....

20060209472 - Magnetoresistive device, magnetic reproducing head, and magnetic information reproducing apparatus: A magnetoresistive device includes a magnetoresistive film and a pair of electrodes for applying a sense current substantially perpendicularly to the magnetoresistive film. The magnetoresistive film includes a magnetization pinned film including a first ferromagnetic layer having a magnetization direction substantially pinned in one direction, a magnetization free film including...

20060209471 - Magnetoresistive element and method of manufacturing the same: A magnetoresistive element is disclosed that includes a magnetoresistive film; a cap film configured to cover the magnetoresistive film and include a three-layer structure in at least a part thereof, the three-layer structure being formed of a third protection layer, a second protection layer, and a first protection layer in...

20060209474 - Magneto-resistive head: In a magneto-resistive head, the magnetic orientation of magnetic domain control layers is stabilized to pin the bias magnetic field that acts on the free layer of a magneto-resistive film, thereby suppressing the production of noise such as Barkhausen noise and enabling the magneto-resistive head to operate stably. A CPP-type...

20060209473 - Magnetoresistive element, magnetic head, and magnetic memory apparatus: A magnetoresistive element of a CPP type configuration including a fixed magnetic layer, a first non-magnetic layer, a free magnetic layer, and a second non-magnetic layer is disclosed. The magnetoresistive element includes a first interface layer situated between the free magnetic layer and the first non-magnetic layer, and a second...

20060203365 - Magnetic disk producing method: A magnetic disk can be magnetized simply and in a short time. A magnetic disk producing method produces a magnetic disk having a central hole, an outer radius, a plurality of annular recording tracks formed in a direction from the central hole toward the outer radius, each recording track including...

20060203366 - Transfer master, transfer holder, transfer apparatus, and magnetic recording medium: A transfer holder comprises a pair of support members, which are capable of taking positions close to each other and positions spaced away from each other, the pair of the support members being adapted to support a transfer master, which carries surface information, and a transfer slave material between the...

20060203367 - Data randomization for rewriting in recording/reproduction apparatus: A data recording/recovery device (20) comprises a packet generator (34) for including recordable information into a packet (44), the packet initially having a nominal run length limited (RLL) sequence if it were RLL encoded. A randomizer (38) uses a randomizer input value (50) to obtain a modified packet (46) which,...

20060203368 - Magnetic recording medium, recording/reproducing apparatus, and stamper: On a magnetic recording medium, M sets of burst patterns are formed along a direction of rotation of a substrate in each burst pattern region, where M is a natural number of two or higher. Each burst pattern is formed so as to include two types of burst signal units...

20060203370 - Data storage device and write processing method for data storage device: A data storage device executes sector guarantee processing at an unexpected power supply disconnection. The sector guarantee processing can be accurately performed even if the fluctuation of power supply voltage during normal operation is high. The voltage of the power supply is monitored via an A/D converter. The control unit...

20060203369 - Medium storage device and medium rotation synchronization processing method for medium storage device: A medium storage device writes or read data on a storage medium synchronizing the rotation of the storage medium with the DSW method for decreasing the gap length considering the rotation jitter. The medium storage device has a controller for generating synchronization timing signals during reading/writing from a clock, and...

20060203371 - Medium storage device and medium rotation synchronization processing method for medium storage device: A medium storage device writes or read data on a storage medium synchronizing the rotation of the storage medium with the DSW method for decreasing the gap length considering the rotation jitter. The medium storage device has a controller for generating synchronization timing signals during reading/writing from a clock, and...

20060203372 - Magnetic recording device: A magnetic recording device capable of reducing the size of a writing circuit and the power consumption by readily adjusting the overshoot of the write current pulses is provided. Two or more transmission lines having different characteristic impedances are provided between an output driver having an impedance Zs and a...

20060203373 - Magnetic tape write once overwrite protection: A magnetic tape cartridge, a recording system, and a magnetic tape drive are configured to, for example, guard against tampering with a write once overwrite protection pointer which allows a rewritable magnetic tape to be treated as write once. In one embodiment, the magnetic tape cartridge comprises a magnetic tape...

20060203374 - Recovery processing method for device specific information of medium storage device and medium storage device: A medium storage device reads device specific information from a medium to a memory and performs read/write operation to the medium, which allows receiving commands from a host even if a read error of the device specific information occurs. When an error occurs during the device specific information read processing...

20060203375 - Magnetic disk drive and magnetic disk drive control: Embodiments of the invention provide a magnetic disk drive and magnetic disk drive control method for unloading a head safely with a simple configuration when a positioning control signal cannot be detected due, for instance, to a seek error. In one embodiment, when a head cannot detect servo information prerecorded...

20060203376 - Magnetic disk drive with flying height control, control method, and manufacturing method: Embodiments of the invention prevent a magnetic head from coming into contact with a protrusion on a magnetic disk. In one embodiment, a head gimbal assembly includes a piezoelectric actuator for changing the flying height of a head/slider assembly. The address of a protrusion on a magnetic disk is preregistered...

20060203377 - Magnetic disk drive device and method of manufacturing the same: A magnetic disk and spindle motor are mounted in a housing member. A support arm is freely rotatably mounted on a cover member. A suspension has a dimple (first mark) indicating the mount position of the magnetic head slider and a through hole (second mark) formed at any different position...

20060203378 - Apparatus and method for correcting static and dynamic imbalance with a single mass in a hard disk drive: An apparatus and method for correcting static and dynamic imbalance with a single mass in a hard disk drive is disclosed. The method provides for determining a static imbalance of a hard disk assembly and for determining a dynamic imbalance of the hard disk assembly. A greater imbalance from the...

20060203381 - Magnetic recording head for perpendicular recording, fabrication process, and magnetic disk storage apparatus mounting magnetic head: A magnetic head for perpendicular recording in which a reduction of an interval between a main pole and a read element is attained by suppressing the phenomenon due to a magnetic field from the main pole entering a read shield and thereby output of the read head being varied. In...

20060203380 - Perpendicular magnetic disk apparatus: m

20060203379 - Perpendicular magnetic recording element, thin film magnetic head, magnetic head device, and magnetic recording/reproducing apparatus: A perpendicular magnetic recording element includes a recording magnetic pole film and a write shield film. The recording magnetic pole film has a yoke portion and a main magnetic pole for perpendicular recording. The main magnetic pole projects from a front end of the yoke portion to have an end...

20060203382 - Thin laminated single pole perpendicular write head: Single write poles tend to large shape anisotropy which results in a very large remnant field when not actually writing. This has now been eliminated by giving the write pole the form of a three layer laminate in which two ferromagnetic layers are separated by a non-magnetic or antiferromagnetic coupling...

20060203383 - Perpendicular magnetic recording head and method of manufacturing the same: A perpendicular magnetic recording head is provided that has a first coil layer is electrically connected to a second coil layer through contact layers. A laminator has a main magnetic pole layer and a gap layer which are formed between the first and second coil layers and above the contact...

20060203384 - Perpendicular magnetic recording head for high frequency drive: Embodiments of the invention provide a perpendicular magnetic head with a narrow track and excellent high frequency characteristics. In one embodiment, a recording magnetic head includes coil conductors and magnetic pole pieces putting the same therebetween, in which a main magnetic pole piece is formed into a planar structure and...

20060203385 - Thin film magnetic head with layer having high saturation magnetic flux density, and magnetic storage apparatus: Embodiments of the invention provide a magnetic film capable of providing a higher saturation magnetic flux density as compared with the conventional one, a process of forming the magnetic film, a thin film magnetic head that makes use of the magnetic film, and a magnetic disk drive having this thin...

20060203386 - Magnetic recording medium, recording/reproducing apparatus, and stamper: In a magnetic recording medium including a servo pattern region having a servo pattern formed of a concave/convex pattern having convex portions and concave portions and a data recording region, the region having a data track pattern, the convex portions are formed in an address pattern region of the servo...

20060203387 - Composite head-electrical conditioner assembly: A composite head-electrical conditioner assembly that includes a slider with a transducer head and transducer bond pads. The transducer bond pads communicate a transducer level electrical signal with the transducer head. An integrated circuit substrate has a conditioning circuit and first substrate bond pads electrically connected to the transducer bond...

20060203388 - Apparatus including a dielectric mirror and method of reflecting radiation away from a portion of an apparatus: An apparatus includes a base layer, a bonding layer subject to laser radiation, and an insulating layer positioned between the base layer and bonding layer. The insulating layer includes a dielectric mirror, which is capable of reflecting laser radiation away from the base layer....

20060203389 - Magnetic head with projections on flexure holding slider: In a magnetic head adhesively fixing a slider having a thin film magnetic element on a slider adhesive tongue of a flexure made of metal material constituting a gimbal suspension through a plurality of spacer projections formed on the slider adhesive tongue, four spacer projections are provided on the slider...

20060203390 - Apparatus and method for modifying the air bearing force of the trailing edge of a slider to increase head to disk interface reliability for contact recording systems: An apparatus and method for modifying the air bearing force of the trailing edge of a slider to increase head to disk interface reliability for contact recording systems. The method provides a suspension for reaching over a disk. A slider having a read/write head element on a trailing edge (TE)...

20060203391 - Head element support apparatus with elastic material: A head element support apparatus having a load beam including a first elastic member, a second elastic member. The elastic members are fixedly joined together at a joining portion. The first elastic member has a first elastically deformable portion, the second elastic member has a second elastically deformable portion, and...

20060203393 - Apparatus and method for reducing a suspension gram load to increase head to disk interface reliability for contact recording systems: An apparatus and method for reducing a suspension gram load to increase head to disk interface reliability for contact recording systems. The method provides a suspension for reaching over a disk. A slider having a read/write head element on a trailing edge (TE) portion is also provided, the slider coupled...

20060203392 - Method and apparatus for modifying a slider to increase head to disk interface reliability for contact recording systems: An apparatus and method for modifying a slider to increase head to disk interface reliability for contact recording systems. The method provides a suspension for reaching over a disk. A slider having a read/write head element on a trailing edge (TE) portion is also provided, the slider coupled with the...

20060203394 - Apparatus and method for utilizing an off-center gimbal to increase head to disk interface reliability for contact recording systems: An apparatus and method for utilizing an off-center gimbal to increase head to disk interface reliability for contact recording systems. The method provides a suspension for reaching over a disk. A slider having a read/write head element on a trailing edge (TE) portion is also provided, the slider coupled with...

20060203395 - Method to form tapered magnetic shield for perpendicular recording head: The inadvertent introduction of stray fields at the media surface by the shields that form part of a magnetic read-write head has been eliminated by using a combination of masking and ion milling to remove small amounts of material close to the shields' outer edges. As a consequence, instead of...

20060203396 - Magnetic detecting device having free layer or pinned layer formed by lamination of magnetic alloy and cu layer and method of manufacturing magnetic detecting device: A magnetic detecting device and a method of manufacturing the magnetic detecting device are provided. Non-magnetic material layer-side magnetic layers of second fixed magnetic layers form a fixed magnetic layer. Each of the non-magnetic material layer-side magnetic layers and a free magnetic layer is formed of a layer, for example,...

20060203397 - Magnetoresistive effect element having a thin non-magnetic intermediate layer: A magneto-resistive effect element includes a free layer having a magnetization direction which varies with respect to an external magnetic field; a pinned layer which includes a stacked structure comprising an outer pinned layer which has a magnetization direction that is fixed with respect to the external magnetic field, a...

20060203398 - Magnetic detective head comprising free layer: A free magnetic layer is a laminated body of a CO2MnZ alloy layer (Z is one or more elements selected from a group consisting of Al, Sn, In, Sb, Ga, Si, Ge, Pb, and Zn) and a CoaFe100-a alloy layer. The CoaFe100-a alloy layer has a composition ratio 76≦a≦100 or...

20060198041 - Write-current control chip and magnetic disk drive using the same: Embodiments of the present invention provide a write-current control chip capable of effectively preventing adjacent track interference (ATI) that occurs depending on how a magnetic disk drive is used, and to provide a magnetic disk drive using the write-current control chip. In one embodiment, a write-current control chip and a...

20060198042 - Magnetic recording medium, recording/reproducing apparatus, and stamper: On a magnetic recording medium, M sets of burst patterns are formed along a direction of rotation of a substrate in each burst pattern region, where M is a natural number of two or higher. Each burst pattern is formed so as to include two types of burst signal units...

20060198043 - Tape cassette recording/reproducing apparatus: A tape cassette recording/reproducing apparatus in which a long length ejection for ejecting a tape cassette by a longer distance than usual is stably executed is disclosed. The tape cassette recording/reproducing apparatus includes a tape cassette housing moving mechanism that moves a tape cassette housing to an ejecting position by...

20060198044 - Method and apparatus for increasing uniformity in ion mill process: A method for increasing etch depth uniformity in ion milling process in a wafer manufacturing process encompasses loading designated regions of a production pallet with carriers containing wafers to be ion milled. These designated regions have been predetermined to exhibit similar and preferred depths of etching. Non-designated regions of the...

20060198045 - Shock sensor mounting apparatus and method for disc drives: An apparatus and method for mounting a shock sensor to the printed circuit board (PCB) of a disc drive are provided. In particular, the present invention allows the shock sensor to be mounted at any location on the printed circuit board rather than being limited to placement adjacent a mounting...

20060198046 - Cartridge device: A cartridge device has a recording and reproducing unit for recording an information signal on and/or reproducing an information signal from a recording medium of a recording medium cartridge, the case having a positioning hole. A holder for holding the cartridge inserted therein is movable between a first position in...

20060198048 - Disk drive thin-film inductive write head with pole tip structure having reduced susceptibility to corrosion: A disk drive thin-film write head structure has a pole tip structure with reduced susceptibility to corrosion. The write head has a first ferromagnetic pole tip that includes a pedestal pole layer and a capping layer on the pedestal pole layer. The capping layer has an extension and the write...

20060198049 - Magnetic head for perpendicular magnetic recording and method of manufacturing same: A magnetic head comprises: an encasing layer made of a nonmagnetic material and having a groove that opens in the top surface; a nonmagnetic metal layer made of a nonmagnetic metal material, disposed on the top surface of the encasing layer, and having a penetrating opening that is contiguous to...

20060198050 - Magnetic head for perpendicular recording and fabrication process: Embodiments of the invention provide an easy-to-fabricate magnetic head which can generate a high magnetic field without eliminating adjacent tracks even if a skew angle is created. In one embodiment, a structure which comprises a pole tip of main pole exposed on the air bearing surface, a part which is...

20060198051 - Thin film magnetic head and magnetic disk apparatus including the same: Disclosed is a magnetic disk apparatus including a magnetic reproducing head portion, and a magnetic recording head including an upper magnetic core having a end portion and a rear portion. As a resist for a frame which is used for forming the rear portion, a negative resist or an electron...

20060198047 - Writer structure with assisted bias: The present invention relates to a recording head with a storage medium. The head includes an assist mechanism to assist operation of the head....

20060198052 - Magnetic recording medium, recording/reproducing apparatus, and stamper: On a magnetic recording medium, a servo pattern is formed in a servo pattern region on at least one surface of a substrate by a concave/convex pattern including a convex part, at least protruding end part of which is formed of magnetic material, and a concave part. The servo pattern...

20060198054 - Flexible type unit, flexible type reel, and method of manufacturing flexible type reel: The present invention includes a dummy layer formed between flexible type units. Accordingly, the strength can be increased during the punching process, an amount of a film can be reduced and the failure of the flexible type units can be prevented....

20060198053 - Recording disk cartridge: The recording disk cartridge of the invention with recording disk media and a cartridge case for housing the media is further equipped with a base frame that surrounds a radial directional outside of the media, configures a sidewall of the case, and has a side opening that makes the media...

20060198055 - Recording disk cartridge: The recording disk cartridge with recording disk media and a cartridge case for housing the media is equipped with a base frame that surrounds a radial directional outside of the media, configures a sidewall of the case, and has a side opening that makes the media front outside; a lower...

20060198056 - Magnetic head and magnetic recording/retrieving apparatus using the same: A magnetic head comprises a retrieving unit for converting magnetic information output from a recording medium into an electric signal, a writing unit having the function of electromagnetic conversion for writing the magnetic information in the recording medium in response to the electric signal, and a first protective film formed...

20060198057 - Esd, cross talk and noise pickup minimizing scheme for cpp and tmr devices: A slider mounted CPP GMR or TMR read head sensor is protected from electrostatic discharge (ESD) damage and from noise and cross-talk from an adjacent write head by means of a balanced resistive/capacitative shunt. The shunt includes highly resistive interconnections between upper and lower shields of the read head and...

20060198058 - Magnetic sensor using nife alloy for pinned layer: A magnetic layer 14c of a pinned magnetic layer 14 has a three-layered structure formed of a CoFe layer 14c1, a NiaFeb alloy layer 14c2 (where a and b each indicate atomic percent, and 0<a≦25 and a+b=100 are satisfied), and a CoFe layer 14c3 laminated in that order from the...

20060198062 - Cpp magnetic detectig device containing nife alloy on free layer thereof: In addition, pinned magnetic layers have heusler alloy layers, which are made of a heusler alloy such as a Co2MnGe alloy. Accordingly, the product ΔRA of a magnetic resistance variation ΔR of the magnetic detecting device and an area A of the device can have a value of 5 mΩμm2...

20060198063 - Hard magnetic film structural body, magnetoresistance effect device thereof, magnetic head, magnetic recording/reproducing head thereof, and magnetic record medium thereof, and magnetic storing apparatus thereof: A base film of a hard magnetic film containing Co as a structural element has a crystal metal base film such as a Cr film formed on the main surface of a substrate and a reactive base film (mixing layer) formed between the substrate and the crystal metal base film...

20060198061 - Magnetic detectible head comprising free layer: There is provided a magnetic detecting element having a large ΔRA. A free magnetic layer has a three layer structure in which a CoFe layer, an NiaFeb alloy layer (where a and b are represented by at %, 0≦a≦25, and a+b=100), and a CoFe layer are laminated from the bottom....

20060198060 - Magnetic detecting element having free layer formed of nife alloy and method of manufacturing the same: There are provided a magnetic detecting element capable of maintaining large ΔRA and of reducing magnetostriction by improving a material forming a free magnetic layer, and a method of manufacturing the same. An NiFeX alloy layer is formed in a free magnetic layer. For example, the element X is Cu....

20060198059 - Novel abutted exchange bias design for sensor stabilization: A hard bias (HB) structure for biasing a free layer in a MR sensor within a magnetic read head is comprised of a main biasing layer with a large negative magnetostriction (λS) value. Compressive stress in the device after lapping induces a strong in-plane anisotropy that effectively provides a longitudinal...

20060198041 - Write-current control chip and magnetic disk drive using the same: Embodiments of the present invention provide a write-current control chip capable of effectively preventing adjacent track interference (ATI) that occurs depending on how a magnetic disk drive is used, and to provide a magnetic disk drive using the write-current control chip. In one embodiment, a write-current control chip and a...

20060198042 - Magnetic recording medium, recording/reproducing apparatus, and stamper: On a magnetic recording medium, M sets of burst patterns are formed along a direction of rotation of a substrate in each burst pattern region, where M is a natural number of two or higher. Each burst pattern is formed so as to include two types of burst signal units...

20060198043 - Tape cassette recording/reproducing apparatus: A tape cassette recording/reproducing apparatus in which a long length ejection for ejecting a tape cassette by a longer distance than usual is stably executed is disclosed. The tape cassette recording/reproducing apparatus includes a tape cassette housing moving mechanism that moves a tape cassette housing to an ejecting position by...

20060198044 - Method and apparatus for increasing uniformity in ion mill process: A method for increasing etch depth uniformity in ion milling process in a wafer manufacturing process encompasses loading designated regions of a production pallet with carriers containing wafers to be ion milled. These designated regions have been predetermined to exhibit similar and preferred depths of etching. Non-designated regions of the...

20060198045 - Shock sensor mounting apparatus and method for disc drives: An apparatus and method for mounting a shock sensor to the printed circuit board (PCB) of a disc drive are provided. In particular, the present invention allows the shock sensor to be mounted at any location on the printed circuit board rather than being limited to placement adjacent a mounting...

20060198046 - Cartridge device: A cartridge device has a recording and reproducing unit for recording an information signal on and/or reproducing an information signal from a recording medium of a recording medium cartridge, the case having a positioning hole. A holder for holding the cartridge inserted therein is movable between a first position in...

20060198048 - Disk drive thin-film inductive write head with pole tip structure having reduced susceptibility to corrosion: A disk drive thin-film write head structure has a pole tip structure with reduced susceptibility to corrosion. The write head has a first ferromagnetic pole tip that includes a pedestal pole layer and a capping layer on the pedestal pole layer. The capping layer has an extension and the write...

20060198049 - Magnetic head for perpendicular magnetic recording and method of manufacturing same: A magnetic head comprises: an encasing layer made of a nonmagnetic material and having a groove that opens in the top surface; a nonmagnetic metal layer made of a nonmagnetic metal material, disposed on the top surface of the encasing layer, and having a penetrating opening that is contiguous to...

20060198050 - Magnetic head for perpendicular recording and fabrication process: Embodiments of the invention provide an easy-to-fabricate magnetic head which can generate a high magnetic field without eliminating adjacent tracks even if a skew angle is created. In one embodiment, a structure which comprises a pole tip of main pole exposed on the air bearing surface, a part which is...

20060198051 - Thin film magnetic head and magnetic disk apparatus including the same: Disclosed is a magnetic disk apparatus including a magnetic reproducing head portion, and a magnetic recording head including an upper magnetic core having a end portion and a rear portion. As a resist for a frame which is used for forming the rear portion, a negative resist or an electron...

20060198047 - Writer structure with assisted bias: The present invention relates to a recording head with a storage medium. The head includes an assist mechanism to assist operation of the head....

20060198052 - Magnetic recording medium, recording/reproducing apparatus, and stamper: On a magnetic recording medium, a servo pattern is formed in a servo pattern region on at least one surface of a substrate by a concave/convex pattern including a convex part, at least protruding end part of which is formed of magnetic material, and a concave part. The servo pattern...

20060198054 - Flexible type unit, flexible type reel, and method of manufacturing flexible type reel: The present invention includes a dummy layer formed between flexible type units. Accordingly, the strength can be increased during the punching process, an amount of a film can be reduced and the failure of the flexible type units can be prevented....

20060198053 - Recording disk cartridge: The recording disk cartridge of the invention with recording disk media and a cartridge case for housing the media is further equipped with a base frame that surrounds a radial directional outside of the media, configures a sidewall of the case, and has a side opening that makes the media...

20060198055 - Recording disk cartridge: The recording disk cartridge with recording disk media and a cartridge case for housing the media is equipped with a base frame that surrounds a radial directional outside of the media, configures a sidewall of the case, and has a side opening that makes the media front outside; a lower...

20060198056 - Magnetic head and magnetic recording/retrieving apparatus using the same: A magnetic head comprises a retrieving unit for converting magnetic information output from a recording medium into an electric signal, a writing unit having the function of electromagnetic conversion for writing the magnetic information in the recording medium in response to the electric signal, and a first protective film formed...

20060198057 - Esd, cross talk and noise pickup minimizing scheme for cpp and tmr devices: A slider mounted CPP GMR or TMR read head sensor is protected from electrostatic discharge (ESD) damage and from noise and cross-talk from an adjacent write head by means of a balanced resistive/capacitative shunt. The shunt includes highly resistive interconnections between upper and lower shields of the read head and...

20060198058 - Magnetic sensor using nife alloy for pinned layer: A magnetic layer 14c of a pinned magnetic layer 14 has a three-layered structure formed of a CoFe layer 14c1, a NiaFeb alloy layer 14c2 (where a and b each indicate atomic percent, and 0<a≦25 and a+b=100 are satisfied), and a CoFe layer 14c3 laminated in that order from the...

20060198062 - Cpp magnetic detectig device containing nife alloy on free layer thereof: In addition, pinned magnetic layers have heusler alloy layers, which are made of a heusler alloy such as a Co2MnGe alloy. Accordingly, the product ΔRA of a magnetic resistance variation ΔR of the magnetic detecting device and an area A of the device can have a value of 5 mΩμm2...

20060198063 - Hard magnetic film structural body, magnetoresistance effect device thereof, magnetic head, magnetic recording/reproducing head thereof, and magnetic record medium thereof, and magnetic storing apparatus thereof: A base film of a hard magnetic film containing Co as a structural element has a crystal metal base film such as a Cr film formed on the main surface of a substrate and a reactive base film (mixing layer) formed between the substrate and the crystal metal base film...

20060198061 - Magnetic detectible head comprising free layer: There is provided a magnetic detecting element having a large ΔRA. A free magnetic layer has a three layer structure in which a CoFe layer, an NiaFeb alloy layer (where a and b are represented by at %, 0≦a≦25, and a+b=100), and a CoFe layer are laminated from the bottom....

20060198060 - Magnetic detecting element having free layer formed of nife alloy and method of manufacturing the same: There are provided a magnetic detecting element capable of maintaining large ΔRA and of reducing magnetostriction by improving a material forming a free magnetic layer, and a method of manufacturing the same. An NiFeX alloy layer is formed in a free magnetic layer. For example, the element X is Cu....

20060198059 - Novel abutted exchange bias design for sensor stabilization: A hard bias (HB) structure for biasing a free layer in a MR sensor within a magnetic read head is comprised of a main biasing layer with a large negative magnetostriction (λS) value. Compressive stress in the device after lapping induces a strong in-plane anisotropy that effectively provides a longitudinal...