Issued Patents All Time
Showing 51–75 of 97 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4873172 | Process for forming a superhigh contrast negative image | Shoji Ishiguro, Tadao Shishido, Akio Miyake | 1989-10-10 |
| 4859579 | Silver halide photographic material | Tetsuro Kojima, Mitsuru Yamamoto, Noriyuki Inoue, Tatsuo Heki | 1989-08-22 |
| 4847180 | Silver halide photographic material capable of being handled in a bright room during steps of photomechanical process | Junji Miyata, Ken-ichi Kuwabara, Toshiro Takahashi, Yoshio Inagaki | 1989-07-11 |
| 4835091 | Process for forming a direct positive image | Noriyuki Inoue, Tatsuo Heki | 1989-05-30 |
| 4828973 | Silver halide photographic material with heterocyclic quaternary ammonium nucleating agent | Ashita Murai, Seiji Suzuki | 1989-05-09 |
| 4814261 | Silver halide photographic material containing a development restrainer or a precursor thereof | Seiji Ichijima | 1989-03-21 |
| 4791049 | Silver halide photographic material containing a compound having an oxidation-reduction moiety and timing group | Tetsuro Kojima, Hideo Usui | 1988-12-13 |
| 4789624 | Silver halide color photographic light-sensitive material | Kei Sakanoue, Takehiko Ueda, Keiichi Adachi | 1988-12-06 |
| 4770982 | Silver halide photographic materials containing a compound which releases a photographically useful group | Seiji Ichijima, Koki Nakamura, Keiji Mihayashi | 1988-09-13 |
| 4770990 | Silver halide photographic light-sensitive material containing a compound capable of imagewise releasing a photographically useful group during development | Koki Nakamura, Osamu Takahashi | 1988-09-13 |
| 4769316 | Method for restraining the formation of re-reversal negative image in direct positive silver halide photographic materials | Tsutomu Miyasaki, Kiyoshi Morimoto | 1988-09-06 |
| 4767692 | Silver halide photographic material | Yoshio Inagaki, Morio Yagihara | 1988-08-30 |
| 4740453 | Silver halide photosensitive material containing a compound capable of releasing a photographically useful group | Koki Nakamura, Tadashi Ikeda, Keiji Mihayashi, Mitsunori Ono, Toshiro Takahashi +3 more | 1988-04-26 |
| 4738918 | Process for processing silver halide photographic material | Shoji Ishiguro, Hiroyuki Mifune, Nobuyuki Iwasaki | 1988-04-19 |
| 4719174 | Direct positive silver halide photographic light-sensitive material depress formation of re-reversed negative image | Tsutomu Miyasaka, Shinsaku Fujita | 1988-01-12 |
| 4699873 | Negative silver halide photographic light-sensitive material | Toshiro Takahashi | 1987-10-13 |
| 4607006 | Silver halide photographic light-sensitive material containing non-spectral sensitizing electron donative silver halide adsorptive compound | Yasuhisa Sano, Haruo Takei, Tsutomu Miyasaka, Shinsaku Fujita | 1986-08-19 |
| 4571376 | Color diffusion transfer photographic film unit with 1-M-(methyl or ethyl)phenyl-4-methyl-4-hydroxymethyl pyrazolidinones | Toru Harada, Shigeru Nakamura, Isao Shimamura | 1986-02-18 |
| 4569904 | Developing method | Eiich Okutsu, Kazumi Watase, Yoshio Inagaki | 1986-02-11 |
| 4550070 | Direct positive silver halide photographic light-sensitive materials | Tsutomu Miyasaka, Hidetoshi Kobayashi, Isamu Itoh | 1985-10-29 |
| 4540655 | Method of processing a direct positive silver halide photographic light-sensitive material | Yoshihiro Takagi, Tadao Sugimoto | 1985-09-10 |
| 4518682 | Silver halide photographic light-sensitive material | Hidetoshi Kobayashi, Toshiro Takahashi, Takeshi Hirose, Keiichi Adachi | 1985-05-21 |
| 4508816 | Method for bleaching color photosensitive material | Kiyohiko Yamamuro, Isamu Itoh, Yasuo Iwasa | 1985-04-02 |
| 4501898 | Photographic development inhibitor (1H- or 2H-) indazolyl hydroquinone derivatives | Kei Sakanoue | 1985-02-26 |
| 4489155 | Silver halide color photographic materials with diffusible dye for improving graininess | Kei Sakanoue, Keiichi Adachi | 1984-12-18 |