G03C 7/3805
Combination of couplers
Official title: {Combination of couplers}
G03C7/3805 (Combination of couplers) appears on 12 US grants and 2 published applications in this corpus.
Search patents in G03C- Granted patents
- 12
- Published applications
- 2
- Assignees
- 5
- Inventors
- 31
- Latest grant
- 8 Jun 2004
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Silver halide color reversal photographic material8 Jun 2004US 6,746,834 B2Fuji Photo Film Co., Ltd.
- Silver halide color photographic lightsensitive material and method for forming color image using the same17 Sep 2002US 6,451,517 B1Fuji Photo Film Co., Ltd.
- Silver halide color reversal photosensitive material and color image forming method using the same27 Aug 2002US 6,440,650 B1Fuji Photo Film Co., Ltd.
- Silver halide photographic material and method of forming images using the same25 Jan 2000US 6,017,690 AFuji Photo Film Co., Ltd.
- 1,2,4-triazole-releasing pyrazolone DIR couplers13 Oct 1998US 5,821,043 AEastman Kodak Company
Most cited
By later US patents
- Silver halide color photographic light-sensitive material16US 4,600,688 AKonishiroku Photo Industry Co., Ltd. · 1986
- Color photographic elements containing a combination of pyrazolone and pyrazoloazole couplers12US 5,389,504 AEastman Kodak Company · 1995
- Silver halide color photographic light-sensitive material and image forming method8US 5,272,049 AFuji Photo Film Co., Ltd. · 1993
- 1,2,4-triazole-releasing pyrazolone DIR couplers8US 5,821,043 AEastman Kodak Company · 1998
- Silver halide color photographic photosensitive material containing pyrazolone and pyrazoloazole magenta couplers4US 5,262,288 AFuji Photo Film Co., Ltd. · 1993