|
| US4400674 | 9 Sep 1980 | 23 Aug 1983 | TDK Electronics Co., Ltd. | Coil unit |
| US4717901 | 6 Apr 1987 | 5 Jan 1988 | Siemens Aktiengesellschaft | Electronic component, especially for a chip inductance |
| US4769900 | 5 Aug 1987 | 13 Sep 1988 | Murata Manufacturing Co., Ltd. | Method of making a chip coil |
| US4842352 | 5 Oct 1988 | 27 Jun 1989 | TDK Corporation | Chip-like inductance element |
| US5015982 | 10 Aug 1989 | 14 May 1991 | General Motors Corporation | Ignition coil |
| US5198790 | 27 Apr 1992 | 30 Mar 1993 | Toledo Commutator Co. | Electrical transducer |
| US5345209 | 30 Jul 1992 | 6 Sep 1994 | TDK Corporation | Adjustment system for a coil device |
| US5455552 | 3 May 1994 | 3 Oct 1995 | Steward, Inc. | Ferrite common mode choke adapted for circuit board mounting |
| US5568111 | 1 May 1995 | 22 Oct 1996 | Steward, Inc. | Ferrite common mode choke adapted for circuit board mounting |
| US5572788 | 1 Jun 1994 | 12 Nov 1996 | TDK Corporation | Coil device |
| US5610467 | 30 Jun 1995 | 11 Mar 1997 | United Technologies Motor Systems, Inc. | Brush holder assembly |
| US5805431 | 17 Jan 1996 | 8 Sep 1998 | Synergy Microwave Corporation | Surface Mountable transformer |
| US6246311 | 26 Nov 1997 | 12 Jun 2001 | VLT Corporation | Inductive devices having conductive areas on their surfaces |
| US6690255 | 21 Feb 2002 | 10 Feb 2004 | Coilcraft, Incorporated | Electronic component |
| US6717500 | 24 Apr 2002 | 6 Apr 2004 | Coilcraft, Incorporated | Surface mountable electronic component |
