H01J 31/206
With three coplanar electron beams
Official title: {with three coplanar electron beams}
H01J31/206 (With three coplanar electron beams) appears on 18 US grants and 2 published applications in this corpus.
Search patents in H01J- Granted patents
- 18
- Published applications
- 2
- Assignees
- 9
- Inventors
- 34
- Latest grant
- 6 Jan 2004
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 2 | 1 |
| 2003 | 3 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Asymmetric space-saving cathode ray tube with magnetically deflected electron beam6 Jan 2004US 6,674,230 B1Sarnoff Corporation
- Space-saving cathode ray tube5 Aug 2003US 6,603,252 B1Orion Electric Co., Ltd.
- Space-saving cathode ray tube employing magnetically amplified deflection1 Jul 2003US 6,586,870 B1Sarnoff Corporation
- Space-saving cathode ray tube1 Apr 2003US 6,541,902 B1Sarnoff Corporation
- Color TV tube apparatus and color display tube apparatus24 Dec 2002US 6,498,443 B2Matsushita Electric Industrial Co., Ltd.
Most cited
By later US patents
- Method for manufacturing a color cathode ray tube and for making screening and mask masters used therein9US 3,973,964 AZenith Radio Corporation · 1976
- Photographic master for use in making a color cathode ray tube shadow mask9US 3,983,613 AZenith Radio Corporation · 1976
- Assembly of electron guns having different gamma values8US 4,181,870 AZenith Radio Corporation · 1980
- Shadow mask color display tube7US 5,099,169 AU. S. Philips Corporation · 1992
- Color picture tube device6US 4,095,260 AHitachi, Ltd. · 1978