Dynamic magnetic information storage or retrieval inventions 12/08

20080316629 - Magnetic data processing apparatus, method and machine readable medium: In a magnetic data processing apparatus, an input part successively inputs magnetic data from a magnetic sensor. A first generation part stores samples of the magnetic data in accordance with a first sampling rule, and generates first offset update data based on the stored samples of the magnetic data when... Agent: Dickstein Shapiro LLP

20080316630 - Using inductance to measure writer spacing in perpendicular magnetic recording: A magnetic data recording system that can directly measure soft underlayer spacing of a perpendicular magnetic write head during operation. The soft underlayer spacing of the magnetic write head can be determined by measuring the magnetic inductance of the write head. The inductance of the write head varies with changes... Agent: Zilka-kotab, PC- Hit

20080316632 - Method for reading data from a magnetic recording tape: A method for reading data from a magnetic recording tape having multiple adjacent data tracks according to one embodiment includes simultaneously detecting signals from a plurality of read devices, at least some of the read devices being positioned over multiple data tracks while other of the adjacent read devices are... Agent: Zilka-kotab, PC- Ibm

20080316631 - Wire-assisted magnetic write device with low power consumption: A magnetic device includes a write element having a write element tip and a conductive coil that carries current to induce a first field in the write element. A first conductor is proximate a leading edge of the write pole tip for carrying current to generate a second field that... Agent: Kinney & Lange, P.A.

20080316633 - Head integrated circuit and storage apparatus including the same: A head integrated circuit for drives a head. The head includes at least a head unit and a heating element for adjusting spacing between the head and a storage medium. And the head integrated circuit includes at least a read amplifier for amplifying the read signal from the head unit... Agent: Greer, Burns & Crain

20080316634 - 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... Agent: John H. Holcombe IBM Corporation,IPLaw Dept.

20080316635 - Deriving servo pes from dc erased bursts in perpendicular recording: A hard disk drive with a disk that has DC erased servo bursts. The DC erased servo bursts are read by a perpendicular recording head that produces a relatively square burst signal. The burst signal is used determine a position error signal and center the head on a track of... Agent: Irell & Manella LLP

20080316636 - Disk drive in which dynamic fly height of head is adjusted, and method of adjusting the dynamic fly height of the head: According to one embodiment, a disk drive includes a heating element which is provided on a head and generates heat when supplied with power, thereby to adjust a dynamic flying height of the head. A head-movement detecting unit detects the abnormal movement of the head, a value of which is... Agent: Patterson & Sheridan, L.L.P.

20080316637 - Non-contact measurement of slider fly height by electrostatic force: In a system and method for a non-contact measurement of the fly height of a slider above a magnetic data storage medium using electrostatic force, a slider with a read/write head flies over a magnetic data storage medium. A series of distinct voltages are applied between the slider and the... Agent: Kenyon & Kenyon LLP

20080316639 - Large data block written on overlapping tracks in a hard disk drive: A hard disk drive with a disk that includes a first group of tracks and a second group of tracks. The second group of tracks are used to write large blocks of data. For example, data in the second group may be video or audio. The second group of tracks... Agent: Irell & Manella LLP

20080316638 - Magnetic recording disk drive with head positioning servo control system for disk surfaces with identical servo patterns: A magnetic recording disk drive has disks with identical pre-patterned servo patterns on their front and back surfaces and a servo control system for positioning the read/write heads using the servo signals from the identical servo patterns. The servo sectors on the two disk surfaces form identical patterns of angularly... Agent: Thomas R. Berthold

20080316641 - Hermetically sealed liquid crystal polymer interconnect: A hermetically sealed housing encloses an inert gas atmosphere, and an electrical interconnect has at least one electrically conductive signal trace embedded onto a liquid crystal polymer (LCP) body to extend from an interior of the housing to an exterior of the housing.... Agent: Fellers, Snider, Blankenship, Bailey & Tippens

20080316640 - System, method, and apparatus for controlling and sealing airflow around disk drive bypass walls: A seal is formed between bypass walls and a cover for a disk drive to improve control and regulation of airflow in the disk drive. The seal is formed with a gasket comprising a bead of form-in-place gasket between the upper edge of the bypass wall and the cover. The... Agent: Bracewell & Giuliani LLP

20080316642 - Magnetic head and manufacturing method therefor: The present invention relates to a perpendicular recording magnetic head. A main magnetic pole film of a perpendicular recording element is a plated film formed on an electrode film and having a small width portion and a large width portion. The small width portion is a portion for emitting a... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20080316643 - Magnetic write device with a cladded write assist element: A magnetic device includes a write element having a write element tip and a conductor adjacent an edge of the write element tip for carrying current to generate an assist field that augments a write field generated by the write element. A cladding material is disposed on at least one... Agent: Kinney & Lange, P.A.

20080316644 - Pmr with improved writability and process controllability by double layer patterning: Improved writability and a sharper neck transition are achieved in a PMR writer with a yoke that has essentially vertical sidewalls and a write pole that has sidewalls with a beveled angle. An alumina mold is made with a negative differential bevel angle by employing a two mask process. A... Agent: Saile Ackerman LLC

20080316645 - Perpendicular magnetic recording head and method of manufacturing the same: Provided is a perpendicular magnetic recording head and a method of manufacturing the same. The perpendicular magnetic recording head that includes a main pole, a return yoke, and a return yoke tip, wherein the main pole and the return yoke tip that faces the main pole with a gap therebetween... Agent: Sughrue Mion, PLLC

20080316646 - Perpendicular magnetic recording head and method of manufacturing the same: A perpendicular magnetic recording head and a method of manufacturing the same are provided. The perpendicular magnetic recording head that includes a main pole, a return yoke, and coils that surround upper and lower parts of the main pole in a solenoid shape so that the main pole generates a... Agent: Sughrue Mion, PLLC

20080316647 - Miniature magnetic core, sensor comprising same and method for manufacturing same: A miniature magnetic core includes at least one bar magnet having, in the demagnetized state, a plurality of magnetic domains separated by magnetic walls, the bar magnet having permanent discontinuities placed at least approximately at the probable locations of at least some of these magnetic walls in the absence of... Agent: Brinks Hofer Gilson & Lione

20080316648 - Nanocryalline structured co-based alloy intermediate layer (il) replacing ru layer in perpendicular magnetic recording media for hard disk drive: A disk for a hard disk drive. The disk includes a first magnetic layer and a second magnetic layer. An intermediate layer consisting of cobalt and titanium is located between the first and second intermediate layers. The intermediate layer creates a finer grain size and larger crystalline anisotropy in the... Agent: Irell & Manella LLP

20080316649 - Method for producing magnetic recording medium, magnetic recording medium produced by the production method, and mold structure for use in the production method: The present invention provides a method for producing a magnetic recording medium having servo areas and data areas using a mold structure having a plurality of convex portions, the method, including: forming an imprint resist layer on a surface of a substrate for the magnetic recording medium, forming a convexo-concave... Agent: Sughrue Mion, PLLC

20080316650 - Method for changing the configuration of a media drive apparatus, computer readable medium, and media drive apparatus: e

20080316651 - Reducing uv process time on storage media: A perfluoropolyether hard disk lubricant having a UV curable functional end group that may be UV cured at a rapid rate with a Xenon excimer lamp. The perfluoropolyether preferably has at least one UV curable functional end group. In one embodiment, the UV curable end group comprises an acrylate.... Agent: Seagate Technology C/o Darby & Darby P.C.

20080316653 - Magnetic head for perpendicular magnetic recording and method of manufacturing same: A magnetic head includes: a pole layer; a nonmagnetic layer disposed on part of the top surface of the pole layer; a gap layer disposed on the pole layer and the nonmagnetic layer; and a shield disposed on the gap layer. The top surface of the pole layer includes: a... Agent: Oliff & Berridge, PLC

20080316652 - Simultaneous pole-tip and side shield fabrication and integrated elg: A method for manufacturing a write pole for perpendicular magnetic recording for accurately defining a side shield throat height and write pole flare point. The method includes the formation of a magnetic structure that provides an electronic lapping guide as well as providing the structure for both the side shields... Agent: Zilka-kotab, PC- Hit

20080316654 - Magnetic sensor and manufacturing method therefor: A magnetic sensor for detecting magnetism in two-axial directions or three-axial directions is constituted of a substrate, a silicon oxide film that is formed on the substrate so as to form the planar surface and slopes, a plurality of magnetoresistive elements, each of which is formed by laminating a free... Agent: Dickstein Shapiro LLP

20080316655 - Current sensor and method of manufacturing current sensor: Provided is a current sensor capable of detecting an induced magnetic field by a current to be detected with higher precision. The first and second modules are provided on facing surfaces of integrated substrates, respectively, with spacers in between. Each of the first and second modules includes an element substrate,... Agent: Oliff & Berridge, PLC

20080316657 - Tmr or cpp structure with improved exchange properties: An insertion layer is provided between an AFM layer and an AP2 pinned layer in a GMR or TMR element to improve exchange coupling properties by increasing Hex and the Hex/Hc ratio without degrading the MR ratio. The insertion layer may be a 1 to 15 Angstrom thick amorphous magnetic... Agent: Stephen B. Ackerman

20080316656 - Magnetic head and method of manufacturing the magnetic head: Embodiments of the present invention provide a magnetic head suitable for high density recording at a high yield by reducing the thickness of an air-bearing surface protection layer of a magnetic head and suppressing reduction in the signal-to-noise (S/N) ratio of a read element. According to one embodiment, a read... Agent: Townsend And Townsend And Crew LLP

20080310043 - Storage device, defect detection method and program for detecting defect in recording medium: The present invention provides a technique for detecting a defect in a tape medium within a relatively short or narrow range. A tape defect detection device includes: a read unit for reading data from a tape medium; an error correction unit for performing error corrections for the data read by... Agent: Ibm Microelectronics Intellectual Property Law

20080310044 - Data recording apparatus and data recording system: A data recording apparatus and a data recording system of the present invention includes buffer memories 2a to 2c that accumulate data in a plurality of channels transferred from an external appliance on a channel basis, a data selector 3 that reads the data accumulated in the buffer memories 2a... Agent: Birch Stewart Kolasch & Birch

20080310045 - Control unit, storage unit, and method for manufacturing storage unit: A control unit adjusts spacing between a head with a heater and a storage medium of a storage unit by controlling power of the heater. The control unit measures first values of touchdown heater power at a first temperature set as temperature condition. And the control unit estimates second values... Agent: Greer, Burns & Crain

20080310046 - Class h drive: A method for driving a load by using an output stage amplifier in full bridge configuration whose supply is modulated by means of a fast switching power converter, controlled in order to maintain the stage's output common mode at its minimum voltage, is presented. The modulation of the switching power... Agent: Paolo Menegoli

20080310048 - Disk drive device and fabricating method thereof: In a disk drive device having a double cover structure with low-density gas enclosed therein, embodiments of the present invention help to securely perform leak inspection on an outer cover and to prevent defects caused in joining the outer cover. According to one embodiment, a hard disk drive (HDD) comprises... Agent: Townsend And Townsend And Crew LLP

20080310047 - Portable type information processing apparatus: According to one embodiment, a portable type information processing apparatus, including: a judging process unit configured to judge whether a data recording apparatus mounted on the portable type information processing apparatus corresponds to either one of a first data recording apparatus which requires a shock resistant function and a second... Agent: Knobbe Martens Olson & Bear LLP

20080310049 - Fluid dyamic bearing with novel air-gap: A fluid dynamic bearing with a modified air-gap is disclosed. One embodiment provides a clamp adjacent to the fluid dynamic bearing, the clamp for clamping at least one disk with respect to the fluid dynamic bearing. In addition, a cap is also provided proximal to a shaft of the fluid... Agent: Hitachi C/o Wagner Blecher LLP

20080310050 - Magnetic recording medium and production process thereof: The present invention provides a magnetic recording medium having superior startup operation and durability as well as satisfactory surface lubricity. The present invention relates to a production process of a magnetic recording medium in which at least a magnetic layer, a protective film layer and a lubricant layer are sequentially... Agent: Sughrue Mion, PLLC

20080310051 - Miniature shielded magnetic component: Low profile, shielded magnetic components having self centering core and coil assemblies.... Agent: King & Spalding, LLP

20080310052 - Apparatus and method for a ferroelectric disk and ferroelectric disk drive: A ferroelectric disk is disclosed including disk surfaces and an electrode coupling formed on at least one of the disk surfaces and electrically coupled to an electrode sheet covered by a probe surface. A slider is disclosed including a resistive probe and an electrical coupling. A head gimbal assembly, head... Agent: Gregory Smith & Associates

20080310053 - Magnetic recording medium, method of recording servo pattern on magnetic recording medium, and magnetic head: A magnetic recording medium includes a disk substrate and a magnetic recording layer formed on one surface or both surfaces of the disk substrate. The magnetic recording layer includes at least one pattern area forming a plurality of data tracks in which a position for magnetic recording is patterned with... Agent: Sughrue Mion, PLLC

20080310054 - Plurality of non-magnetic dampers on a voice coil yoke arm: A plurality of non-magnetic dampers on a voice coil yoke arm for reducing low frequency vibration in a hard disk drive is disclosed. One embodiment provides housing and at least one disk coupled with the housing. In addition, an actuator is coupled to the housing, the actuator having a coil... Agent: Hitachi C/o Wagner Blecher LLP

20080310055 - Repeatable shorting and unshorting of micro-electrical circuits: The present invention provides methods and systems for repeatably creating and severing a short circuit to protect an electronic component from ESD. A short circuit may be formed between read sensor pads of a read sensor by depositing a shorting material on a magnetic head using a Laser Induced Forward... Agent: Patterson & Sheridan, L.L.P.

20080304172 - Data storage medium having system data stored in a guard band between zones of consecutive data storage tracks: A storage medium format is provided having a first band of a plurality of consecutive data storage tracks having user data stored thereto, a second band of a plurality of consecutive data storage tracks having other user data stored thereto, and a guard track medially disposed therebetween the first band... Agent: Mccarthy Law Group

20080304173 - Magnetic recording disk drive with patterned media and system for clocking write data: A system and method accurately clocks write data to the discrete data blocks in a patterned media disk drive. The precise time intervals between successive timing marks in the data tracks are measured by a timing mark detector that counts the integer number of write clock cycles between successive timing... Agent: Thomas R. Berthold

20080304174 - Optimizing tape speed for a sync operation: Provided are techniques for determining a tape speed for a next sync operation. A sync command is received. An average transaction size and an average host transfer rate of a set of previous sync operations are calculated. The tape speed for the next sync operation is determined using the average... Agent: Konrad Raynes & Victor, LLP. Attn: Ibm37

20080304175 - Recording/reproducing apparatus and tracking servo control method: A recording/reproducing apparatus includes: a rotary-type magnetic recording medium including a track pattern with concentric or spiral data recording tracks; a composite magnetic head including a reproducing element that reads magnetic signals from the medium and a recording element that writes magnetic signals on the medium; a control unit that... Agent: Greenblum & Bernstein, P.L.C

20080304176 - Magnetic recording head and magnetic recording apparatus: A magnetic recording head includes a recording magnetic pole, and a spin oscillation device including a first magnetic layer having at least one magnetic material layer, a second magnetic layer having at least one magnetic material layer, and a first nonmagnetic layer provided between the first magnetic layer and the... Agent: Nixon & Vanderhye, PC

20080304177 - Flow modifiers for improved magnetic recording device: Additives that inhibit the passage of oil across oil-air interfaces in disk drives and enable the use of the lower viscosity oil in disk drives are disclosed. Mass transfer of oil from the bulk liquid oil into the vapor phase takes place by oil molecules evaporating from the oil-air interface,... Agent: Bracewell & Giuliani LLP

20080304178 - High-flow rate filter wall design: A hard disk drive that includes a disk, a head, and a filter enclosed by a base plate and a cover plate. The base plate has a filter wall with a fore end and an aft end. The fore end of the filter wall has a tapered surface that extends... Agent: Irell & Manella LLP

20080304179 - Perpendicular magnetic recording head and method of manufacturing same: In a perpendicular magnetic recording head comprising a main magnetic pole layer and a return yoke layer which are laminated with a magnetic gap layer interposed therebetween, a nonmagnetic throat height determining layer and a return yoke reinforcement layer made of a magnetic material having a saturated magnetic flux density... Agent: Oliff & Berridge, PLC

20080304180 - Bias techniques for magnetic tape media: The disclosure is directed to a method for creating a remanence magnetization on a magnetic tape medium. The magnetic tape is first substantially demagnetized, e.g., erased, by an erasure unit having multiple magnetic elements of alternating polarity. The erased magnetic tape is then passed by a bias magnet that creates... Agent: Attn: Eric D. Levinson Imation Corp.

20080304182 - Head slider and hard disk drive having the same: disk A hard disk drive includes a base member, a disk which is a data storage medium to rotate at a high speed on the base member, and a head stack assembly (HSA) having a head slider including a magnetic head to write data on the disk or to reproduce... Agent: Stanzione & Kim, LLP

20080304181 - Method and apparatus for providing an air bearing with higher flying height for lower rotating speed drives: A method and apparatus for improving flying height stability at lower speeds is achieved by an ABS with a channel and pocket. The channel and pocket are configured to achieve a desired flying height profile.... Agent: Kenyon & Kenyon LLP

20080304183 - Flexure for head gimbal assembly with narrow gimbal width in a hard disk drive: A hard disk drive and head gimbal assembly including a flexure finger with a micro-actuator split of the flexure supporting a micro-actuator control line, leading to minimized gimbal width for the flexure finger about the micro-actuator assembly including the coupled slider and micro-actuators to reduce mechanical vibrations caused by wind... Agent: Gregory Smith & Associates

20080304184 - Write transducer and system implementing same: A magnetic, head in one embodiment includes a substrate; a write transducer; leads coupled to the write transducer; and a resistor coupled between one of the leads and the substrate or a common line. A magnetic storage system in another embodiment includes a cable having a characteristic impedance associated with... Agent: Zilka-kotab, PC- Ibm

20080304185 - Drum assembly associated with video tape machine: A method of manufacturing a drum assembly associated with a digital betacam video tape machine is disclosed. The method includes providing a helical scan drum assembly having a stationary upper drum, a stationary lower drum and a plurality of rotating read/write heads disposed between the stationary upper and lower drums.... Agent: Beyer Law Group LLP

20080304186 - Perpendicular magnetic recording head: In a perpendicular magnetic recording head comprising a pair of side shield layers made of a soft magnetic material on both sides in a track width direction of a magnetic pole part of a main magnetic pole layer, the pair of side shield layers have a front end face exposed... Agent: Oliff & Berridge, PLC

20080297935 - Recording method for recording data on a recording medium: To solve the above problems, the present invention can record data in a management area in units smaller than ordinary units for recorded data to suitably record information in a limited management area and thereby efficiently use the user data area. At that time, the present invention simplifies interleave processing... Agent: Mcdermott Will & Emery LLP

20080297936 - Method and apparatus for correcting data errors in a disk drive: According to one embodiment, a disk drive that effectively corrects data errors, which are changes in the total number of data bits at the time of reproducing the data. The disk drive has a disk and a disk controller. The disk has a data-recording area constituted by a set of... Agent: Pillsbury Winthrop Shaw Pittman, LLP

20080297937 - Using a measured error to determine coefficients to provide to an equalizer to use to equalize an input signal: Provided are a read channel, storage drive and method using a measured error to determine coefficients to provide to an equalizer to use to equalize an input signal. A read channel is incorporated in a storage device to process signals read from a storage medium. An equalizer uses coefficients to... Agent: Konrad Raynes & Victor, LLP. Attn: Ibm37

20080297939 - Control circuit for implementing damage prediction diagnosis on read head element of magnetic head and protection operation on write data: The present invention predicts and diagnoses damage to a read head element of a magnetic head used in a magnetic storage device. The present invention includes a control circuit for implementing a write data protection operation and for implementing a write and read operation using a different magnetic head when... Agent: Greer, Burns & Crain

20080297941 - Data recording apparatus and data recording method: A data recording apparatus of the present invention includes a head that records data signals by magnetizing a magnetic tape 10 and a recording control portion that controls the recording operation by causing recording current to flow to the head. The recording control portion controls the operation of the head,... Agent: Birch Stewart Kolasch & Birch

20080297938 - Erase band compensated offset servo trimming: A hard disk drive with a disk that has a servo field with an A servo burst and a B servo burst. The A servo burst has a trimmed erase band. The trimmed erase band can be created by offsetting the write head relative to a burst centerline to reduce... Agent: Irell & Manella LLP

20080297940 - Method and apparatus for controlling a nonvolatile memory in a disk drive: According to one embodiment, in a disk drive having a disk and a flash memory, the disk controller controls the timing of performing a block erase when the flash memory is accessed, so that this timing may differ from the timing of a seek operation that is performed when the... Agent: Pillsbury Winthrop Shaw Pittman, LLP

20080297942 - Drive unit: Embodiments in accordance with the present invention provide a drive unit that is capable of satisfactorily performing the positioning control with disturbance components included in a position error signal being effectively controlled. According to one embodiment, an error signal generator of a drive unit generates a position error signal (PES)... Agent: Townsend And Townsend And Crew LLP

20080297943 - Ramp in hard disc: The present invention discloses a hard disk drive head loading and unloading device, including a working division and a positioning division. The working division and the positioning division are fixedly connected or integrated as a whole, the former being provided with a slide rail on which a magnetic head can... Agent: EagleIPLimited

20080297944 - Disk reversing/transporting mechanism and disk tester using the same mechanism: A grooved cam plate for vertically moving a roller as a crank pin is provided to move the roller vertically correspondingly to a movement of a movable table by slipping the roller in and slipping the roller up from the groove of the camp plate. A disk is reversed by... Agent: Mattingly, Stanger, Malur & Brundidge, P.C.

20080297946 - Dual write gap perpendicular recording head: A perpendicular recording head for a hard disk drive. The head includes a non-magnetic backside shield that minimizes or eliminates the flow of backside flux through the head. The head can be fabricated by forming a non-magnetic backside shield layer on a main pole. Portions of the backside shield and... Agent: Irell & Manella LLP

20080297945 - Method to make a perpendicular magnetic recording head with a bottom side shield: A perpendicular magnetic recording (PMR) head is fabricated with a pole tip shielded laterally by a separated pair of bottom side shields and shielded from above by an upper shield. The bottom side shields surround a lower portion of the pole tip while the upper portion of the pole tip... Agent: Stephen B. Ackerman

20080297947 - Magnetic disk for hard disk drives: The present invention provides a magnetic disk in a discrete track medium and a patterned medium, which prevents the loss of the magnetically recorded data when a head of a magnetic disk device contacts the magnetic disk, and a manufacturing method thereof. A magnetic disk has a protrusion as a... Agent: Antonelli, Terry, Stout & Kraus, LLP

20080297949 - Head slider: A position of contact between a suspension and a dimple is set toward a leading edge with respect to a piezoelectric element, and a pad for generating a positive pressure is disposed between the dimple and the piezoelectric element in addition to a trailing pad. Fluctuations of a positive pressure... Agent: Antonelli, Terry, Stout & Kraus, LLP

20080297948 - Suspension, head gimbal assembly and manufacturing method thereof, and disk drive unit with the same: A suspension for a HGA includes a flexure having a tongue region and an out trigger. The out trigger has a pair of rigid beams and a pair of spring beams. The pair of spring beams enables the flexure to possess favorable flexibility and assists a slider to have enough... Agent: Nixon & Vanderhye, PC

20080297950 - Magnetic signal reproduction system and magnetic signal reproduction method: The magnetic signal reproduction system comprises a magnetic recording medium comprising a magnetic layer comprising a ferromagnetic powder and a binder on a nonmagnetic support; and a reproduction head, wherein a number of protrusions equal to or greater than 10 nm in height on the magnetic layer surface, as measured... Agent: Sughrue Mion, PLLC

20080297951 - Perpendicular magnetic recording head: In a perpendicular magnetic recording head comprising a main magnetic pole layer and a return yoke layer which have respective front end faces exposed at a surface opposing a recording medium and are laminated with a nonmagnetic material layer interposed therebetween on the medium-opposing surface, an end magnetization control layer... Agent: Oliff & Berridge, PLC

20080297952 - Thin-film magnetic head:

20080297953 - Magnetic head for perpendicular magnetic recording with a shield and method of manufacturing same: A magnetic head includes: a coil; a pole layer; a shield having an end face located in a medium facing surface forward of an end face of the pole layer along a direction of travel of a recording medium; a gap layer between the shield and the pole layer; and... Agent: Oliff & Berridge, PLC

20080297954 - Magnetic sensor and manufacturing method therefor: A magnetic sensor includes a plurality of giant magnetoresistive elements, each of which includes a free layer, a conductive layer, and a pin layer sequentially laminated on a substrate, wherein the pin layer formed by sequentially laminating a first magnetic layer, an Ru layer, a second magnetic layer, and an... Agent: Dickstein Shapiro LLP

20080297955 - Sensor temperature compensation: A device includes a pair of individual sensors spaced apart from each other. A current source provides current to both of the individual sensors. A differential temperature sensor is coupled thermally proximate the individual sensors and provides a temperature difference signal that is combined with current from the current source... Agent: Schwegman, Lundberg & Woessner / Infineon