H01J 2229/5687
Auxiliary coils
H01J2229/5687 (Auxiliary coils) appears on 85 US grants and 36 published applications in this corpus.
Search patents in H01J- Granted patents
- 85
- Published applications
- 36
- Assignees
- 35
- Inventors
- 166
- Latest grant
- 20 Jul 2010
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 4 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 5 | 2 |
| 2002 | 8 | 9 |
| 2003 | 6 | 6 |
| 2004 | 7 | 8 |
| 2005 | 7 | 9 |
| 2006 | 5 | 0 |
| 2007 | 0 | 1 |
| 2008 | 1 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Cathode ray tube20 Jul 2010US 7,759,852 B2LG Electronics Inc.
- Cathode-ray tube apparatus with magnetic spacers between magnetic rings10 Jun 2008US 7,385,341 B2Matsushita Toshiba Picture Display Co., Ltd.
- Electron gun for cathode ray tube having SVM coil and cathode ray tube having the electron gun14 Nov 2006US 7,135,814 B2Samsung SDI.Co., Ltd.
- Velocity modulation coil apparatus and cathode-ray tube apparatus31 Oct 2006US 7,129,628 B2Matsushita Toshiba Picture Display Co., Ltd.
- Cathode-ray tube apparatus24 Oct 2006US 7,126,292 B2Matsushita Toshiba Picture Display Co., Ltd.
- Magnetic Field Compensation Apparatus for Cathode Ray Tube30 Apr 2009US 2009/0108729 A1
- Cathode ray tube22 Feb 2007US 2007/0040490 A1LG Electronics Inc.
- Velocity modulation coil apparatus and cathode-ray tube apparatus15 Dec 2005US 2005/0275332 A1Matsushita Toshiba Picture Display Co., Ltd.
- Projection display apparatus and magnetic shield device3 Nov 2005US 2005/0242754 A1Kabushiki Kaisha Toshiba
- Cathode ray tube device and a television set using the same13 Oct 2005US 2005/0225268 A1Hitachi Displays, Ltd.
Most cited
By later US patents
- Astigmatic focus correction circuit23US 3,961,223 AUnited Technologies Corporation · 1976
- In-line color picture tube apparatus with dynamic convergence correction device18US 4,642,527 AHitachi, Ltd. · 1987
- Convergence correcting device capable of coma correction for use in a cathode ray tube having in-line electron guns18US 4,725,763 AHitachi, Ltd. · 1988
- Deflection yoke apparatus15US 4,547,707 ADenki Onkyo Co., Ltd. · 1985
- Color picture tube apparatus13US 4,818,919 AKabushiki Kaisha Toshiba · 1989