Issued Patents All Time
Showing 76–100 of 112 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5049477 | Radiation responsive composition | Masayoshi Tsuboi, Keizo Koya | 1991-09-17 |
| H963 | Color light-sensitive material | Hiroyuki Hirai, Keizo Furuya | 1991-09-03 |
| 5026634 | Color light-sensitive material | Michio Ono, Hiroyuki Hirai, Nobutaka Ohki, Kouichi Hanaki | 1991-06-25 |
| 4994363 | Silver halide light-sensitive material containing a compound releasing a photographically useful group | Keizo Koya, Hiroyuki Watanabe, Yasuhiro Yoshioka | 1991-02-19 |
| 4968598 | Heat developable color light-sensitive material | Hiroyuki Hirai | 1990-11-06 |
| 4965170 | Silver halide photographic material and method for forming super high contrast images therewith | Toshinao Ukai, Kazuhiro Shirasu, Keizo Koya, Masahiro Okada, Kazunobu Katoh | 1990-10-23 |
| 4962017 | Silver halide photographic materials | — | 1990-10-09 |
| H830 | Silver halide color photographic material | Naoyasu Deguchi, Shinji Ueda | 1990-10-02 |
| 4950764 | 2-aryl-4-isoxazolin-3-one derivatives | Shigeru Makamura | 1990-08-21 |
| 4921785 | Silver halide photographic material | Ichizo Toya | 1990-05-01 |
| 4891304 | Silver halide photographic materials | — | 1990-01-02 |
| 4886736 | Silver halide color photographic material | Kei Sakanoue, Seiji Ichijima | 1989-12-12 |
| 4840887 | Silver halide photographic materials | — | 1989-06-20 |
| 4788132 | Silver halide color reversal photographic material | Naoyasu Deguchi, Tetsuro Kojima, Hideo Miyazaki, Shigeru Ohno | 1988-11-29 |
| 4783396 | Silver halide photographic materials | Sahigeru Nakamura | 1988-11-08 |
| 4772546 | Silver halide photographic material with high interimage effects | Naoyasu Deguchi, Tetsuro Kojima, Hideo Miyazaki, Shigeru Ohno | 1988-09-20 |
| 4770990 | Silver halide photographic light-sensitive material containing a compound capable of imagewise releasing a photographically useful group during development | Shigeo Hirano, Osamu Takahashi | 1988-09-13 |
| 4770982 | Silver halide photographic materials containing a compound which releases a photographically useful group | Seiji Ichijima, Shigeo Hirano, Keiji Mihayashi | 1988-09-13 |
| 4740454 | Silver halide photographic material | Naoyasu Deguchi, Tetsuro Kojima, Hideo Miyazaki, Shigeru Ohno | 1988-04-26 |
| 4740453 | Silver halide photosensitive material containing a compound capable of releasing a photographically useful group | Shigeo Hirano, Tadashi Ikeda, Keiji Mihayashi, Mitsunori Ono, Toshiro Takahashi +3 more | 1988-04-26 |
| 4696894 | Silver halide photographic materials containing 1,3,4-thiadiazole derivatives having a polar substituent | Naoyasu Deguchi, Tetsuro Kojima, Shigeru Ohno, Hideo Miyazaki | 1987-09-29 |
| 4675276 | Silver halide photographic material | Tetsuro Kojima, Takashi Toyoda, Hideo Ikeda | 1987-06-23 |
| 4657847 | Silver halide photographic light-sensitive materials | Hideo Ikeda, Shigeru Ohno, Nobuaki Miyasaka | 1987-04-14 |
| 4636456 | Process for forming a photographic image | Toshiro Takahashi | 1987-01-13 |
| 4634660 | Development-processing method for silver halide photographic light-sensitive material | Hiroyuki Mifune, Shoji Ishiguro | 1987-01-06 |