Inductor devices inventions 05/07

20070120634 - Rotary transformer: A rotary transformer for coupling electrical power at a high level into a rotor operable at a high rotational speed without the introduction of undesirable electromagnetic torque and problems of dynamic mechanical instability comprises a stationary primary mounted in surrounding relationship with respect to the rotor, an electromagnetic shield having... Agent: E I Du Pont De Nemours And Company Legal Patent Records Center

20070120635 - Noise filter: An impact and vibration-resistant noise filter avoiding cracking of a core at the time of application of a vibration or impact. The noise filter includes a case and core. The case has a first case portion having a first wall portion, a second wall portion, and a first bottom wall... Agent: Oliff & Berridge, PLC

20070120636 - Magnetic coupling device for contactless energy transmission systems: A detachable transformer for contactless power system includes a first magnetic coupling element wound with coil and a second magnetic coupling element wound with coil. The first magnetic coupling element and the second magnetic coupling element are of symmetric shape and arranged in contactless manner to provide contactless power coupling.... Agent: Birch Stewart Kolasch & Birch

20070120637 - Balun with a 1/4 impedance ratio: A mode-switching transformer with a 1-to-4 impedance ratio having a first planar winding formed in a first conductive level from a first differential mode terminal outside of the winding; a second planar winding formed in a second conductive level from a second differential mode terminal outside of the winding; a... Agent: Stmicroelectronics Inc. C/o Wolf, Greenfield & Sacks, P.C.

20070120638 - Noise filter having a pair of cores and four core holding members: A noise filter available for various cable widths and capable of being easily attached to a cable. The noise filter has a first core having both ends to which first and second holding members and are attached, and a second core having both ends to which third and fourth holding... Agent: Oliff & Berridge, PLC

20070120639 - Component arrangement with a planar transformer: A component arrangement has a semiconductor body, a dielectric layer and a planar transformer. The semiconductor body includes a face. The planar transformer includes a primary winding, a first planar winding section, and a second planar winding section, each vertically spaced apart from each other. The first planar winding section... Agent: Maginot, Moore & Beck Chase Tower

20070115084 - Planar inductor using liquid metal mems technology: Using MEMS device design and fabrication techniques, liquid metal inductors can be formed. Because of the common fabrication techniques, liquid metal inductors can be more easily integrated with certain MEMS microswitches.... Agent: Agilent Technologies Inc.

20070115085 - Direct current link inductor for power source filtration: An inductor with a primary winding on a magnetic core that produces a primary magnetic field H1 with a current I1 has an electromagnetic field source that generates a secondary magnetic field H2 in the core that opposes the primary magnetic field H1 to produce a low net magnetic field... Agent: Hamilton Sundstrand Corporation

20070115086 - Multilayer circuit with variable inductor, and method of manufacturing it: The multilayer circuit comprising a plurality of electrically conductive layers separated from each other by respective dielectric layers, wherein at least one variable inductor is provided that comprises: a conductive coil structure following a coil path in a single and thickest one of said conductive layers; two ports connected to... Agent: Harness, Dickey & Pierce, P.L.C

20070115087 - Inductor and fabricating method thereof: An inductor includes a closed core, a magnetic medium and a coil. The magnetic medium covers at least a portion of the closed core. The coil winds around the closed core or the magnetic medium. A fabricating method of the inductor is also disclosed.... Agent: Birch Stewart Kolasch & Birch

20070115088 - Discharge lamp lighting apparatus: A discharge lamp lighting apparatus for supplying high frequency high voltage to an excimer discharge lamp comprises a boasting transformer having a core, a secondary side coil and a pair of primary side coils; a DC power source; and switching elements, wherein a duty ratio of an electrically conductive period... Agent: Rader Fishman & Grauer PLLC

20070109085 - Twin spark ignition coil with provisions to balance load capacitance: A twin spark ignition apparatus having two high-voltage (HV) outputs incorporates features for balancing load capacitance on each HV output. The ignition apparatus provides a first high-voltage (HV) connection configured for direct mounting on a first spark plug, and a second HV connection for coupling to a second spark plug... Agent: Delphi Technologies, Inc.

20070109086 - Method for forming and testing the formation of amorphous metal objects: A method of forming a portion of magnetic core from a plurality of magnetic ribbons using a former having an electrically conductive coil located about the former has following steps: locating an end of a stack of magnetic ribbon material substantially within the opening of the coil, locating the free... Agent: Squire, Sanders & Dempsey L.l.p

20070109087 - Coil component: Disclosed is a coil component having a magnetic core that is made of a magnetic material, and a terminal electrode portion and a coil portion that are made of a conductive material, wherein the coil components is configured such that the magnetic material and the conductive material contact with each... Agent: David R. Metzger Sonnenschein Nath & Rosenthal LLP

20070109088 - Snap-on parasitic power line transformer: An economically attractive method to tap low-level electric power from any power line is disclosed. The invention captures power for low consumption electronic components such as communication repeaters and remote sensors. The device snaps onto any power line and functions as a parasitic current transformer. It captures the dynamic magnetic... Agent: Realtronics Corporation

20070109089 - Self-damped inductor: An inductor with self-damping properties for use in multiple applications including for high power broadband frequency applications is provided by a coil having an input end and an output end and wound about a core of magnetically permeable material and an eddy current generator incorporated either at the time of... Agent: Jones, Tullar & Cooper, P.C.

20070103267 - Power feed system for ring sensor: On a power-feeding unit for converting electric power derived from a power supply into magnetic fluxes, a ring sensor as power-fed unit is placed, so that power is fed from the power-feeding unit to the ring sensor by electromagnetic induction. With this structure, electrical contacts are eliminated, and a waterproof... Agent: Birch Stewart Kolasch & Birch

20070096858 - Electromagnetic coil: An electromagnetic coil is formed by spiraling a plate-like wire cluster. The plate-like wire cluster includes a plurality of conductive lines, and a normal direction of a plane of the long sides of the plate-like wire cluster in the cross-sectional view is approximately parallel to the spirally forward direction of... Agent: John S. Egbert Egbert Law Offices

20070096859 - Magnetic circuit for ignition coils or transformers: A magnetic circuit for an ignition coil or a transformer, including an inner, essentially rod-shaped core and an outer core. The outer core includes a strip-shaped element of thickness, length and width, and is situated around the inner core in such a way that the strip-shaped element is positioned at... Agent: Kenyon & Kenyon LLP