Issued Patents All Time
Showing 26–40 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5017467 | Photographic material with imidazole cyan coupler | Toyoaki Masukawa | 1991-05-21 |
| 4996139 | Silver halide photographic light-sensitive material containing novel cyan coupler | Toyoaki Masukawa, Takashi Uchida | 1991-02-26 |
| 4921783 | Silver halide photographic light-sensitive material | Toyoaki Masukawa | 1990-05-01 |
| 4840886 | Silver halide color photographic material containing a 1h-pyrazole (3,2-C)-s-triazole derived magenta coupler | Toshifumi Iijima, Kenji Kumashiro, Hiroshi Kashiwagi, Koichi Hatta, Yuji Hotta +4 more | 1989-06-20 |
| 4818672 | Silver halide color photographic light-sensitive material improved in cyan image characteristics | Toyoaki Masukawa, Yasuo Tsuda, Hidetaka Ninomiya, Toshihiko Kimura | 1989-04-04 |
| 4791052 | Silver halide photographic light-sensitive material | Shuji Kida, Katsunori Katoh, Takako Tanaka, Satoshi Nakagawa, Kosaku Masuda | 1988-12-13 |
| 4788284 | Diphenylimidazole type dyes | Toyoaki Masukawa, Yasuo Tsuda, Hidetaka Ninomiya | 1988-11-29 |
| 4695533 | Silver halide photographic light-sensitive material | Satoshi Kawakatsu, Katsunori Katoh, Toshijumi Iijima, Kenji Kumashiro, Hiroshi Kashiwagi +7 more | 1987-09-22 |
| 4675280 | Silver halide color photographic material containing a 1H-pyrazolo [3,2-C]- S | Yutaka Kaneko, Kenji Kadokura, Toshihiko Kimura, Satoshi Kawakatsu, Katsunori Katoh +1 more | 1987-06-23 |
| 4665015 | Silver halide color photographic material containing a magenta coupler | Toshifumi Iijima, Kenji Kumashiro, Hiroshi Kashiwagi, Koichi Hatta, Satoshi Kawakatsu +2 more | 1987-05-12 |
| 4607002 | Silver halide color photo-sensitive material | Satoshi Kawakatsu, Katsunori Katoh, Kaoru Shinozaki | 1986-08-19 |
| 4600688 | Silver halide color photographic light-sensitive material | Satoshi Kawakatsu, Katsunori Katoh, Kaoru Shinozaki, Toshihiko Kimura | 1986-07-15 |
| 4581326 | Silver halide color photographic material | Katsunori Katoh, Satoshi Kawakatsu, Kosaku Masuda, Kaoru Miyagi, Toshihiko Kimura | 1986-04-08 |
| 4562146 | Silver halide color photographic material | Kosaku Masuda, Kaoru Miyagi, Katsunori Katoh, Toshihiko Kimura, Satoshi Kawakatsu | 1985-12-31 |
| 4548899 | Silver halide color photographic material | Satoshi Kawakatsu, Katsunori Katoh, Kaoru Shinozaki | 1985-10-22 |