H01J 2231/121
Means for indicating the position of the beam
Official title: Means for indicating the position of the beam, e.g. beam indexing
H01J2231/121 (Means for indicating the position of the beam) appears on 31 US grants and 14 published applications in this corpus.
Search patents in H01J- Granted patents
- 31
- Published applications
- 14
- Assignees
- 13
- Inventors
- 62
- Latest grant
- 26 Jul 2005
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 2 |
| 2002 | 4 | 10 |
| 2003 | 3 | 1 |
| 2004 | 0 | 1 |
| 2005 | 2 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Deflection system for cathode ray tubes26 Jul 2005US 6,922,011 B2Koninklijke Philips Electronics N. V.
- Tracking picture tube10 May 2005US 6,891,340 B2Koninklijke Philips Electronics N. V.
- Cathode ray tube with arrangement for electron ray control22 Apr 2003US 6,552,503 B2Koninklijke Philips Electronics N. V.
- Cathode ray tube and signal detecting method in cathode ray tube8 Apr 2003US 6,545,435 B2Sony Corporation
- Beam index type cathode ray tube11 Mar 2003US 6,531,808 B2Samsung SDI.Co., Ltd.
- Tracking picture tube12 Aug 2004US 2004/0155610 A1Koninklijke Philips Electronics N. V.
- Tracking tube with adapted tracking structure27 Mar 2003US 2003/0057896 A1
- Deflection system for cathode ray tubes21 Nov 2002US 2002/0171352 A1Koninklijke Philips Electronics N. V.
- Tracking picture tube21 Nov 2002US 2002/0171353 A1Koninklijke Philips Electronics N. V.
- Multi-beam index CRT with horizontal phosphor lines19 Sep 2002US 2002/0130622 A1Chunghwa Picture Tubes, Ltd.
Most cited
By later US patents
- Beam index color cathode ray tube with color-identifying patterns of stripes disposed in beam run-in area of display surface12US 4,635,106 ASony Corporation · 1987
- Color-monochrome visual display device12US 5,091,718 A1992
- Luminescence detecting devices11US 4,804,845 ASony Corporation · 1989
- Flat color cathode-ray tube10US 4,654,559 ASanyo Electric Co., Ltd. · 1987
- Beam-indexing color picture tube arrangement9US 4,507,585 AHitachi, Ltd. · 1985