H01J 2229/4868
With rounded end or ends
Official title: with rounded end or ends
H01J2229/4868 (With rounded end or ends) appears on 24 US grants and 0 published applications in this corpus.
Search patents in H01J- Granted patents
- 24
- Published applications
- 0
- Assignees
- 11
- Inventors
- 49
- Latest grant
- 10 Nov 1998
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 5 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Color cathode ray tube comprising an in-line electron gun with extended outer apertures10 Nov 1998US 5,834,887 AU. S. Philips Corporation
- Color display tube comprising an in-line electron gun with astigmatism tuning element20 Jan 1998US 5,710,479 AU. S. Phillips Corporation
- Electron gun with improved withstand voltage for color-picture tube23 Jan 1996US 5,486,735 AKabushiki Kaisha Toshiba
- Electron gun and cathode-ray tube31 Aug 1993US 5,241,237 AHitachi, Ltd.
- In-line electron gun for a colored cathode ray13 Apr 1993US 5,202,603 AKabushiki Kaisha Toshiba
No published applications in this class yet.
Most cited
By later US patents
- In-line electron gun structure for color cathode ray tube having tapered walls and elongated apertures for beam spot-shaping19US 4,535,266 ANorth American Philips Consumer Electronics Corp. · 1985
- Electron gun assembly for a color cathode ray tube18US 5,162,695 AKabushiki Kaisha Toshiba · 1992
- In-line electron gun structure for color cathode ray tube having oblong apertures17US 4,766,344 ANorth American Philips Consumer Electronics Corp. · 1988
- Electron gun for color picture tubes having uniquely formed lens apertures12US 4,833,364 AHitachi, Ltd. · 1989
- Electron gun assembly of color ray tube12US 4,967,120 AKabushiki Kaisha Toshiba · 1990