H01J 2229/5637
Colour purity
H01J2229/5637 (Colour purity) appears on 10 US grants and 2 published applications in this corpus.
Search patents in H01J- Granted patents
- 10
- Published applications
- 2
- Assignees
- 9
- Inventors
- 24
- Latest grant
- 17 Sep 2002
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Color purity and covergence magnet for color cathode ray tube17 Sep 2002US 6,452,471 B1Orion Electric Co., Ltd.
- Cathode ray tube dynamic electron-optic eyebrow effect distortion correction28 Sep 1993US 5,248,920 AZenith Electronics Corporation
- Magnet assembly for correcting CRT misconvergence13 Jul 1993US 5,227,692 ASamsung Electron Devices Co., Ltd.
- Color cathode ray tube apparatus5 Jan 1993US 5,177,412 AKabushiki Kaisha Toshiba
- Color picture device having magnetic pole pieces2 Feb 1988US 4,723,094 AKabushiki Kaisha Toshiba
Most cited
By later US patents
- In-line color picture tube apparatus with dynamic convergence correction device18US 4,642,527 AHitachi, Ltd. · 1987
- Cathode ray tube dynamic electron-optic eyebrow effect distortion correction12US 5,248,920 AZenith Electronics Corporation · 1993
- Magnet assembly for correcting CRT misconvergence9US 5,227,692 ASamsung Electron Devices Co., Ltd. · 1993
- Deflection device for use in color television receiver6US 4,034,324 ATokyo Shibaura Electric Co., Ltd. · 1977
- Device for adjusting the electron beams of a color-picture tube6US 4,377,767 AInternational Standard Electric Corporation · 1983