H01J 2229/4862
Square
Official title: square
H01J2229/4862 (Square) appears on 6 US grants and 0 published applications in this corpus.
Search patents in H01J- Granted patents
- 6
- Published applications
- 0
- Assignees
- 6
- Inventors
- 21
- Latest grant
- 28 Apr 1998
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Color cathode ray tube with subelectrodes28 Apr 1998US 5,744,903 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
- Color cathode ray tube with reduced halo10 Jun 1997US 5,637,956 AHitachi, Ltd.
- Multistep focusing electron gun for cathode ray tube30 Jun 1992US 5,126,625 ASamsung Electron Devices Co., Ltd.
- Cathode ray tube apparatus with quadrupole electrode structure12 Dec 1989US 4,886,999 AMitsubishi Denki Kabushiki Kaishi
No published applications in this class yet.
Most cited
By later US patents
- Cathode ray tube apparatus with quadrupole electrode structure35US 4,886,999 AMitsubishi Denki Kabushiki Kaishi · 1989
- Multistep focusing electron gun for cathode ray tube4US 5,126,625 ASamsung Electron Devices Co., Ltd. · 1992
- Color display tube comprising an in-line electron gun with astigmatism tuning element3US 5,710,479 AU. S. Phillips Corporation · 1998
- Color cathode ray tube with subelectrodes2US 5,744,903 AU. S. Philips Corporation · 1998
- Color picture tube having inline electron gun with coma correction members1US 4,730,144 ARCA Corporation · 1988