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| Number | Title | Issue Date |
| 7423884 | Multilayer circuit board A multilayer circuit board includes: two or more layers of electrical insulative base members; and two or more layers of conductive patterned layers. At least two of the conductive patterned layers include coil patterns that will be a part of a coil, through holes a... | 09/09/2008 |
| 7205512 | Fixing device using induction heating An electrophotography fixing device has a heating roller and an induction heating device. In order to improve heat resistance, heat radiating performance and insulation performance and in order to appropriately uniformly heat the heating roller, in the induction hea... | 04/17/2007 |
| 7091812 | Inverter unit An inverter unit comprising component parts including at least an inverter and a filter which removes a high harmonic wave component from an output of said inverter, wherein said component parts are housed in an aluminum case having a bottom wall portion and a side ... | 08/15/2006 |
| 7091811 | Fixing member A device for absorbing axial and radial short-circuit forces in a cable-wound inductor. A fixing member includes an inner envelope surface that surrounds the cable winding of the inductor. ... | 08/15/2006 |
| 7088210 | Electromagnet having spacer for facilitating cooling and associated cooling method An electromagnet and associated apparatus and method are provided. The electromagnet includes a core and at least one winding disposed circumferentially about the core such that the winding extends at least one revolution around the core. The electromagnet further i... | 08/08/2006 |
| 6806805 | Low loss high Q inductor A high Q inductive clement with low losses, high inductance and high efficiency is disclosed. The high Q inductive element with one or more inductive loops is formed over a silicon micro structure with thin support elements formed by deep plasma etching in bulk sili... | 10/19/2004 |
| 6765181 | Inductor assembly An apparatus and process are provided for induction heat treatment of electrically conductive workpieces. The inductor assembly is formed from a single piece inductor that utilizes an electrically non-conductive top, side and bottom frames to hold flux concentrators... | 07/20/2004 |
| 6498554 | Auxiliary wiring structure for stabilizer An auxiliary wiring structure for stabilizer which includes a ferrite core and a separator. The ferrite core is assembled by annular silicon sheets and has a slot formed at a selected location. The separator is clamped in the slot and enables wiring for a... | 12/24/2002 |
| 6433664 | Coil A conductor is wound around a magnetic core to form a plurality of conductor turns. The conductor turns are spaced from one another by a substantially equal spacing d. An insulating layer is disposed between the conductor turns and the magnetic core. An i... | 08/13/2002 |
| 6175727 | Suspended printed inductor and LC-type filter constructed therefrom A novel inductor termed a suspended printed inductor (SPI) and an LC-type printed filter constructed using the suspended printed inductor is disclosed. The LC-type suspended printed filter is formed over any suitable substrate material, such as a dielectr... | 01/16/2001 |
| 6163243 | Toroidal current transformer assembly and method A current transformer assembly comprises a toroidal core and a conductor having a body portion and a mounting portion. The conductor's body portion extends through the aperture of the toroidal core. The mounting portion is positioned for a mechanical and ... | 12/19/2000 |
| 6064291 | Converter transformer The present invention provides a small, light-weight converter transformer of high efficiency which has an excellent noise characteristic, a high coupling and good output voltage characteristic, low temperature-rise and a high reliability, for use in a sw... | 05/16/2000 |
| 5831431 | Miniaturized coil arrangement made by planar technology, for the detection of ferromagnetic materials A miniturized coil arrangement made by planar technology for the detection f material having a magnetic permeability other than zero, provided with a magnetizable core in a first plane of a substrate, an electrically energizable coil wound around a first s... | 11/03/1998 |
| 5523735 | High tension line transformer for a television receiver A high voltage transformer for a television receiver includes a coil former supporting a primary winding on a magnetic core. The primary winding has an axial length L. A compartmentalized coil former supports a high voltage coil radially surrounding the p... | 06/04/1996 |
| 5504419 | Rod-core current transformer In the case of the current transformer according to the invention, the components used are arranged in a novel manner. The primary winding (7) is arranged around the secondary winding (8), with an extended core (9), at a distance which is provided for the... | 04/02/1996 |
| 5250921 | Field assembly for an electromagnet The preferred field assembly includes a field shell of generally T-shaped radial cross-section and molded of powdered metal, a plastic bobbin for supporting a multiple turn winding, and a plastic bobbin ring which covers part of the field shell and which ... | 10/05/1993 |
| 4912446 | High energy density hyperconducting inductor A cryogenically coolable inductive coil including: a multicomponent conductor comprising a plurality of components, each component including a cable of conductive material having a longitudinal axis about which the cable is twisted, the cable being wrappe... | 03/27/1990 |
| 4848567 | Heating device having a removable carrier A heating device, such as a heating coil for use in apparatus to be heated, has a removable flexible strip carrier which enables the coil, already supported on ceramic insulators and carried by brackets, to be readily installed in the apparatus. The dispo... | 07/18/1989 |
| 4795995 | Method and apparatus for producing electromagnetic surveillance fields A system for producing alternating electromagnetic fields for use in theft detection and surveillance systems, including an arrangement of field-generating inductance coils for disposition on opposite sides of a passage to be monitored by the electromagne... | 01/03/1989 |
| 4768856 | Optical-waveguide coil and method of making same Optical-waveguide coils are used in rotation rate measuring instruments. To protect the optical-waveguide coil (1) from external influences, such as sound waves, pressure, and temperature changes, which may result in measurement errors, it is wound on a c... | 09/06/1988 |
| 4626814 | Rapid acting electromagnetic actuator There is disclosed an electromagnetic actuator which is provided with an electromagnet and a movable core which can be attracted by the electromagnet. The electromagnet is formed by a small plate having on its front surface facing the core a plurality of ... | 12/02/1986 |
| 4583062 | Electromagnetic delay line having a coil with divergent adjacent turns An electromagnetic delay line is disclosed which is provided with an inductance element formed by a conductor winding with capacitors arranged between the inductance element and ground dividing the element into a plurality of sections. These sections are ... | 04/15/1986 |
| 4462017 | High voltage air core reactor A high voltage reactor includes a plurality of angularly spaced columns for supporting the layers of a disk winding in vertically spaced relation. Each of the columns is comprised of a monolithic casting of an insulative material and pairs of angularly sp... | 07/24/1984 |
| 4287022 | Compression hub for a fusion reactor system A compression hub for use in a fusion reactor system comprising a multiplicity of compression plates that are polygonal in configuration, and which are arranged in vertically stacked, spaced relation relative to each other. Each of the compression plates ... | 09/01/1981 |
| 4052686 | Flexible position probe assembly The combination of a plurality of tubular transducer sections, and a flexible supporting member extending through the tubular transducer sections forms a flexible elongated probe of a design suitable for monitoring the level of an element, such as a nucle... | 10/04/1977 |
| 4020437 | Relay having two winding supports A relay structure having two winding supports axially aligned on opposite sides of a mounting plate is described. The winding supports are designed as coil forms having flange members placed on the ends thereof. The flange members nearest the mounting pla... | 04/26/1977 |
