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Class Information
Number: 336/215
Name: Inductor devices > Multiple magnetic paths > Three or more
Description: Subject matter wherein the number of independent and distinct closed loops of magnetic material is three or more.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7617590 |
Method of manufacturing an embedded inductor |
Nov. 17, 2009 |
| 7385466 |
Differential transmission circuit and common mode choke coil |
Jun. 10, 2008 |
| 7271695 |
Electromagnetic apparatus and method for making a multi-phase high frequency electromagnetic apparatus |
Sep. 18, 2007 |
| 7136293 |
Full wave series resonant type DC to DC power converter with integrated magnetics |
Nov. 14, 2006 |
| 6873237 |
Core structure |
Mar. 29, 2005 |
| 6856230 |
Harmonic filtering circuit with special transformer |
Feb. 15, 2005 |
| 6774758 |
Low harmonic rectifier circuit |
Aug. 10, 2004 |
| 6753752 |
Silicon steel core spacing structure for improving induction |
Jun. 22, 2004 |
| 6744343 |
Flyback transformer mounting structure for video apparatus |
Jun. 1, 2004 |
| 6683524 |
Transformer core |
Jan. 27, 2004 |
| 6583699 |
Magnetic material and inductor |
Jun. 24, 2003 |
| 6525638 |
Choke coil |
Feb. 25, 2003 |
| 6400249 |
Transformer providing low output voltage |
Jun. 4, 2002 |
| 6317021 |
Variable inductor |
Nov. 13, 2001 |
| 6137391 |
Flux-controlled type variable transformer |
Oct. 24, 2000 |
| 6091211 |
Mis-convergence correction device |
Jul. 18, 2000 |
| 6014071 |
Choke coil |
Jan. 11, 2000 |
| 5994992 |
Choke coil |
Nov. 30, 1999 |
| 5912553 |
Alternating current ferroresonant transformer with low harmonic distortion |
Jun. 15, 1999 |
| 5825272 |
Choke coil for suppressing common-mode noise and normal-mode noise |
Oct. 20, 1998 |
| 5635890 |
Choke coil |
Jun. 3, 1997 |
| 5629661 |
Choke coil for eliminating common mode noise and normal mode noise |
May. 13, 1997 |
| 5581224 |
Choke coil for eliminating common mode noise and differential mode noise |
Dec. 3, 1996 |
| 5537089 |
Three phase transformer with reduced harmonic currents |
Jul. 16, 1996 |
| 5525951 |
Choke coil |
Jun. 11, 1996 |
| 5506559 |
Choke coil for eliminating common mode noise and normal mode noise |
Apr. 9, 1996 |
| 5481238 |
Compound inductors for use in switching regulators |
Jan. 2, 1996 |
| 5422620 |
Transformer |
Jun. 6, 1995 |
| 5412253 |
IC memory card with non-contact power and data connection |
May. 2, 1995 |
| 5394319 |
Non-coupled integrated magnetic structure |
Feb. 28, 1995 |
| 5363035 |
Phase controlled transformer |
Nov. 8, 1994 |
| 5359314 |
Core and coil assembly for an amorphous-steel cored electric transformer |
Oct. 25, 1994 |
| 5229652 |
Non-contact data and power connector for computer based modules |
Jul. 20, 1993 |
| 5182535 |
Summing transformer core for star-delta inverter having a separate secondary winding for each primary winding |
Jan. 26, 1993 |
| 5177460 |
Summing transformer for star-delta inverter having a single secondary winding for each group of primary windings |
Jan. 5, 1993 |
| 5053738 |
Magnetic leakage transformer |
Oct. 1, 1991 |
| 5003277 |
Phase-shifting transformer with a six-phase core |
Mar. 26, 1991 |
| 4975670 |
Air cooled transformer |
Dec. 4, 1990 |
| 4943763 |
Ferroresonant transformer with dual outputs |
Jul. 24, 1990 |
| 4864478 |
Integrated-magnetics power converter |
Sep. 5, 1989 |
| 4835497 |
AC line filter |
May. 30, 1989 |
| 4800356 |
Shunt transformer |
Jan. 24, 1989 |
| 4749979 |
Transformer comprising a magnetic screen |
Jun. 7, 1988 |
| 4675615 |
Magnetic amplifier |
Jun. 23, 1987 |
| 4675638 |
Ferromagnetic multiple shell core for electric coils |
Jun. 23, 1987 |
| 4639705 |
Transformer with gapless core on support |
Jan. 27, 1987 |
| 4557039 |
Method of manufacturing transformer cores |
Dec. 10, 1985 |
| 4550364 |
Power transformer for use with very high speed integrated circuits |
Oct. 29, 1985 |
| 4531108 |
Three-phase choke with a five-leg core |
Jul. 23, 1985 |
| RE31840 |
Transformer for use in a static inverter |
Feb. 26, 1985 |
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