H01J 29/701
Systems for correcting deviation or convergence of a plurality of beams by
Official title: {Systems for correcting deviation or convergence of a plurality of beams by means of magnetic fields at least}
H01J29/701 (Systems for correcting deviation or convergence of a plurality of beams by) appears on 369 US grants and 74 published applications in this corpus.
Search patents in H01J- Granted patents
- 369
- Published applications
- 74
- Assignees
- 85
- Inventors
- 491
- Latest grant
- 8 Dec 2009
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 10 | 0 |
| 1978 | 9 | 0 |
| 1979 | 6 | 0 |
| 1980 | 14 | 0 |
| 1981 | 10 | 0 |
| 1982 | 7 | 0 |
| 1983 | 11 | 0 |
| 1984 | 9 | 0 |
| 1985 | 9 | 0 |
| 1986 | 9 | 0 |
| 1987 | 14 | 0 |
| 1988 | 13 | 0 |
| 1989 | 9 | 0 |
| 1990 | 10 | 0 |
| 1991 | 10 | 0 |
| 1992 | 12 | 0 |
| 1993 | 15 | 0 |
| 1994 | 6 | 0 |
| 1995 | 10 | 0 |
| 1996 | 11 | 0 |
| 1997 | 7 | 0 |
| 1998 | 20 | 0 |
| 1999 | 12 | 0 |
| 2000 | 12 | 0 |
| 2001 | 20 | 6 |
| 2002 | 33 | 26 |
| 2003 | 23 | 14 |
| 2004 | 15 | 10 |
| 2005 | 7 | 10 |
| 2006 | 5 | 4 |
| 2007 | 1 | 3 |
| 2008 | 2 | 0 |
| 2009 | 1 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Deflection yoke for cathode ray tube8 Dec 2009US 7,629,754 B2Samsung SDI.Co., Ltd.
- Cathode-ray tube apparatus with magnetic spacers between magnetic rings10 Jun 2008US 7,385,341 B2Matsushita Toshiba Picture Display Co., Ltd.
- Color cathode-ray tube apparatus1 Jan 2008US 7,315,112 B2Matsushita Toshiba Picture Display Co., Ltd.
- Cathode-ray tube device capable of reducing misconvergence5 Jun 2007US 7,227,301 B2Matsushita Electric Industrial Co., Ltd.
- Velocity modulation coil apparatus and cathode-ray tube apparatus31 Oct 2006US 7,129,628 B2Matsushita Toshiba Picture Display Co., Ltd.
- Magnetic Field Compensation Apparatus for Cathode Ray Tube30 Apr 2009US 2009/0108729 A1
- Color cathode-ray tube apparatus27 Sep 2007US 2007/0222359 A1Matsushita Toshiba Picture Display Co., Ltd.
- Cathode-ray tube apparatus9 Aug 2007US 2007/0182305 A1Matsushita Toshiba Picture Display Co., Ltd.
- Hdtv crt display having optimized tube geometry, yoke field and gun orientation17 May 2007US 2007/0109217 A1Thomson Licensing
- Display device comprising a deflection unit and a deflection unit for a display device7 Dec 2006US 2006/0273708 A1LG. Philips Displays
Most cited
By later US patents
- Device for displaying color television images55US 4,027,219 AU. S. Philips Corporation · 1977
- Centering magnet for deflection yokes and process for producing same35US 6,545,578 B2Sanyo Electric Co., Ltd. · 2003
- Magnetic beam adjusting rings with different thickness33US 5,399,933 AChunghwa Picture Tubes, Ltd. · 1995
- Deflection yoke for a color cathode ray tube19US 4,433,268 ATokyo Shibaura Denki Kabushiki Kaisha · 1984
- Self-converging deflection yoke18US 4,246,560 AHitachi, Ltd. · 1981