H01J 9/2273
Auxiliary lenses and filters
Official title: {Auxiliary lenses and filters}
H01J9/2273 (Auxiliary lenses and filters) appears on 54 US grants and 12 published applications in this corpus.
Search patents in H01J- Granted patents
- 54
- Published applications
- 12
- Assignees
- 26
- Inventors
- 87
- Latest grant
- 30 Dec 2008
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 5 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 6 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 0 | 3 |
| 2002 | 2 | 2 |
| 2003 | 2 | 2 |
| 2004 | 1 | 2 |
| 2005 | 0 | 1 |
| 2006 | 2 | 2 |
| 2007 | 0 | 0 |
| 2008 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Manufacturing method of color cathode ray tube30 Dec 2008US 7,471,894 B2Hitachi Displays, Ltd.
- Manufacturing method of color cathode ray tube11 Nov 2008US 7,450,842 B2Hitachi Displays, Ltd.
- Screen for image display apparatus, method for manufacturing screen for image display apparatus, and image display apparatus25 Apr 2006US 7,035,006 B2Sony Corporation
- Resin-packaged led light source28 Feb 2006US 7,005,683 B2Rohm Co., Ltd.
- Bulb for color cathode ray tube and color cathode ray tube and methods for production thereof27 Jan 2004US 6,682,864 B2Sony Corporation
- Manufacturing method of color cathode ray tube3 Aug 2006US 2006/0171709 A1Hitachi Displays, Ltd.
- Manufacturing method of color cathode ray tube3 Aug 2006US 2006/0171710 A1Hitachi Displays, Ltd.
- Lens system for manufacturing crt screens1 Dec 2005US 2005/0264158 A1Koninklijke Philips Electronics N. V.
- Screen for image display apparatus, method for manufacturing screen for image display apparatus, and image display apparatus3 Jun 2004US 2004/0104663 A1Sony Corporation
- Resin-packaged led light source29 Apr 2004US 2004/0080268 A1Rohm Co., Ltd.
Most cited
By later US patents
- Screen for image display apparatus, method for manufacturing screen for image display apparatus, and image display apparatus16US 7,035,006 B2Sony Corporation · 2006
- Method for producing phosphor screens, and color cathode ray tubes incorporating same13US 6,074,789 APhilips Electronics N. A. Corporation · 2000
- Correcting lenses utilized in the manufacture of fluorescent screen of color picture tubes11US 4,052,123 AHitachi, Ltd. · 1977
- Optical correction lens11US 4,099,848 AHitachi, Ltd. · 1978
- Method of producing a color picture tube screen9US 4,866,466 AU. S. Philips Corporation · 1989