Issued Patents All Time
Showing 51–74 of 74 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4592991 | Silver halide photographic printing paper | Tetsuo Yoshida, Tadayoshi Kokubo, Tadashi Ikeda, Hidetoshi Kobayashi | 1986-06-03 |
| 4578346 | Silver halide color photographic light-sensitive materials | Toshiyuki Watanabe, Morio Yagihara | 1986-03-25 |
| 4574115 | Silver halide light-sensitive materials having a layer of grains having dye absorbed thereon | Tadashi Ikeda, Tadaaki Tani | 1986-03-04 |
| 4542091 | Color image forming process | Noboru Sasaki, Takatoshi Ishikawa | 1985-09-17 |
| 4536472 | Silver halide color photographic light-sensitive material | Hirohiko Kato, Seiji Ichijima, Toshiyuki Watanabe | 1985-08-20 |
| 4518682 | Silver halide photographic light-sensitive material | Hidetoshi Kobayashi, Toshiro Takahashi, Shigeo Hirano, Takeshi Hirose | 1985-05-21 |
| 4489155 | Silver halide color photographic materials with diffusible dye for improving graininess | Kei Sakanoue, Shigeo Hirano | 1984-12-18 |
| 4477563 | Silver halide color photographic light-sensitive material | Seiji Ichijima, Kei Sakanoue, Hidetoshi Kobayashi | 1984-10-16 |
| 4476219 | Silver halide color photographic material | Kei Sakanoue, Shigeo Hirano, Takehiko Ueda | 1984-10-09 |
| 4474874 | Color photographic light-sensitive material | Shigeo Hirano, Kei Sakanoue | 1984-10-02 |
| 4425162 | Method for providing a color image by ink-jet printing | Masatoshi Sugiyama, Eiichi Kato, Akira Ogawa, Shinichi Imai | 1984-01-10 |
| 4411987 | Silver halide color photographic light-sensitive material | Hidetoshi Kobayashi, Toshiyuki Watanabe, Tadashi Ogawa | 1983-10-25 |
| 4390618 | Silver halide photographic light-sensitive materials | Hidetoshi Kobayashi, Toshirou Takahashi, Shigeo Hirano, Takeshi Hirosa | 1983-06-28 |
| 4366237 | Silver halide color photographic light-sensitive material | Seiji Ichijima, Tadashi Ogawa | 1982-12-28 |
| 4308336 | Color photographic sensitive materials | Kokichi Waki, Seiki Sakanoue | 1981-12-29 |
| 4268622 | Photographic light-sensitive materials having dyed layers | Eiichi Kato, Nobuaki Inoue, Tetsurou Kojima | 1981-05-19 |
| 4266013 | Direct positive silver halide light-sensitive material and method of forming direct positive image | Shigeo Hirano, Nobuyuki Tsujino | 1981-05-05 |
| 4255511 | Direct positive silver halide light-sensitive material | Shigeo Hirano, Nobuyuki Tsujino | 1981-03-10 |
| 4245037 | Direct positive silver halide light-sensitive material | Nobuyuki Tsujino, Shigeo Hirano | 1981-01-13 |
| 4243747 | Color photographic light-sensitive material | Kotaro Nakamura, Akira Ogawa | 1981-01-06 |
| 4232114 | Color photographic light-sensitive elements containing anti-color fogging agents | Tadao Shishido, Akio Mitsui | 1980-11-04 |
| 4224403 | Method for preventing the degradation of a hydrophilic colloid solution for silver halide photographic light-sensitive material | Yuzo Toda, Shoji Ishiguro, Yasuhiro Nakayama | 1980-09-23 |
| 4199360 | Method for spectrally sensitizing photographic light-sensitive emulsions | Masanao Hinata, Yuji Mihara, Tadao Shishido | 1980-04-22 |
| 4195999 | Silver halide photographic material containing ultraviolet light absorbing agent | Shigeo Hirano, Tadashi Ikeda, Takeshi Mikami | 1980-04-01 |