Issued Patents All Time
Showing 26–43 of 43 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6235457 | Arylidene compound, azomethine compound and silver halide photographic material | Keizo Kimura, Masashi Ogiyama, Yoshiharu Yabuki, Toshio Kawagishi, Takeshi Nakamine | 2001-05-22 |
| 5994047 | Silver halide color photosensitive material and method for producing color filter using the same | Tatsuya Igarashi, Hiroyuki Hirai | 1999-11-30 |
| 5972586 | Silver halide color photosensitive material | Tatsuya Igarashi, Hiroyuki Hirai | 1999-10-26 |
| 5800953 | Method for producing color filter using a silver halide color photosensitive material | Tatsuya Igarashi, Hiroyuki Hirai | 1998-09-01 |
| 5532377 | Photographic coupler and silver halide color photographic material | Masuji Motoki, Tadahisa Sato, Osamu Takahashi | 1996-07-02 |
| 5508154 | Silver halide photographic light-sensitive material, developer, and image-forming process | Hidetoshi Kobayashi | 1996-04-16 |
| 5500334 | Silver halide color photographic material containing pyrazole-substituted couplers | Hideaki Naruse, Toshiyuki Watanabe, Tadahisa Sato | 1996-03-19 |
| 5487968 | Silver halide photographic material | Hidetoshi Kobayashi | 1996-01-30 |
| 5451501 | Photographic coupler and silver halide color photographic material | Masuji Motoki, Tadahisa Sato, Osamu Takahashi | 1995-09-19 |
| 5409808 | Silver halide color photographic material | Hideaki Naruse, Toshiyuki Watanabe, Tadahisa Sato | 1995-04-25 |
| 5284958 | Process for producing a 1H-pyrazolo[5,1-C]-1,2,4-triazole compound | — | 1994-02-08 |
| 5262288 | Silver halide color photographic photosensitive material containing pyrazolone and pyrazoloazole magenta couplers | Kei Sakanoue | 1993-11-16 |
| 5214149 | Process for producing a 1H-pyrazolo[5,1-c]-1,2,4-triazole compound | — | 1993-05-25 |
| 5155016 | Silver halide color photographic material containing novel pyrazoloazole coupler and method to produce color image | Tadahisa Sato | 1992-10-13 |
| 5122612 | Process for producing 5-amino-4-halogeno-1H-pyrazole compounds | Keizo Kimura, Tadahisa Sato | 1992-06-16 |
| 5089651 | Process for producing 3-iminonitriles | Masato Taniguchi, Tadahisa Sato | 1992-02-18 |
| 5066575 | Silver halide color photographic material containing pyrazolo (1,5-b)(1,2,4)triazole magenta coupler | Tadahisa Sato, Osamu Takahashi, Hideaki Naruse | 1991-11-19 |
| 5055587 | Process for preparing 1H-pyrazolo-[5,1-c]-1,2,4-triazole compounds | — | 1991-10-08 |