H01J 31/203
With more than one electron beam
Official title: {with more than one electron beam}
H01J31/203 (With more than one electron beam) appears on 65 US grants and 11 published applications in this corpus.
Search patents in H01J- Granted patents
- 65
- Published applications
- 11
- Assignees
- 22
- Inventors
- 88
- Latest grant
- 6 Jan 2004
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 2 | 0 |
| 1978 | 4 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 4 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 5 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 1 |
| 2002 | 9 | 7 |
| 2003 | 6 | 1 |
| 2004 | 1 | 1 |
| 2005 | 0 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
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.
- Laterally spaced multiple electron gun color cathode ray tube device29 Jul 2003US 6,600,253 B2
- Space-saving cathode ray tube employing magnetically amplified deflection1 Jul 2003US 6,586,870 B1Sarnoff Corporation
- Cathode ray tube and method of manufacturing the same, and color selecting member for cathode ray tube and method of manufacturing the same6 May 2003US 6,559,575 B1Sony Corporation
- Color cathode ray tube apparatus24 Nov 2005US 2005/0258731 A1Matsushita Toshiba Picture Display Co., Ltd.
- Side projection type cathode ray tube9 Sep 2004US 2004/0174111 A1
- Laterally spaced multiple electron gun color cathode ray tube device2 Jan 2003US 2003/0001473 A1U. S. Philips Corporation
- Cathode ray tube and method of manufacturing the same, and color selecting member for cathode ray tube and method of manufacturing the same28 Nov 2002US 2002/0175614 A1
- Cathode ray tube, scanning control device, and scanning method28 Nov 2002US 2002/0175626 A1
Most cited
By later US patents
- Large screen video display comprising a matrix array of cathode-ray tubes operated at increased vertical and horizontal scan rates32US 4,635,105 AThomson-CSF · 1987
- Shadow mask each aperture of which is defined by a quadrupolar lens18US 4,059,781 AU. S. Philips Corporation · 1977
- Method of forming an array of electron emitters17US 5,455,196 ATexas Instruments Incorporated · 1995
- Color selection means comprising lens electrodes spaced by grains of insulating material15US 4,107,569 AU. S. Philips Corporation · 1978
- Color cathode ray tube with plural electron gun assemblies15US 4,714,856 AKabushiki Kaisha Toshiba · 1987