Issued Patents All Time
Showing 1–25 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5162293 | Thermal transfer recording material | Noritaka Nakayama, Takashi Uchida | 1992-11-10 |
| 5128237 | Direct positive silver halide photographic material | Nariko Kimura, Tomomi Yoshizawa, Shigeto Hirabayashi | 1992-07-07 |
| 5112532 | Non-linear optical material and non-linear optical device employing it | Hidetaka Ninomiya, Noritaka Nakayama, Miki Morita | 1992-05-12 |
| 5071740 | Heat developable color photosensitive material | Ken Okauchi | 1991-12-10 |
| 5053325 | Silver halide color photographic light-sensitive material | — | 1991-10-01 |
| 5051347 | Silver halide photographic light-sensitive material containing a novel cyan coupler | Takashi Uchida, Noritaka Nakayama | 1991-09-24 |
| 5017467 | Photographic material with imidazole cyan coupler | Noritaka Nakayama | 1991-05-21 |
| 4996139 | Silver halide photographic light-sensitive material containing novel cyan coupler | Takashi Uchida, Noritaka Nakayama | 1991-02-26 |
| 4988614 | Silver halide color photographic light-sensitive material containing novel magenta couplers | Osamu Ishige, Hidetaka Ninomiya, Junichi Kohno | 1991-01-29 |
| 4977073 | Silver halide light-sensitive color photographic material | Osamu Ishige, Shuji Kida, Shigeto Hirabayashi | 1990-12-11 |
| 4921783 | Silver halide photographic light-sensitive material | Noritaka Nakayama | 1990-05-01 |
| 4840870 | Heat-transfer image-receiving element | Masaru Iwagaki, Tawara Komamura, Wataru Ishikawa, Kimie Hoshino | 1989-06-20 |
| 4840883 | Light-sensitive silver halide color photographic material containing novel cyan coupler | Hidetaka Ninomiya, Hiroyuki Iizuka | 1989-06-20 |
| 4818672 | Silver halide color photographic light-sensitive material improved in cyan image characteristics | Yasuo Tsuda, Hidetaka Ninomiya, Noritaka Nakayama, Toshihiko Kimura | 1989-04-04 |
| 4788284 | Diphenylimidazole type dyes | Yasuo Tsuda, Hidetaka Ninomiya, Noritaka Nakayama | 1988-11-29 |
| 4770981 | Heat-development-type color light-sensitive material | Tawara Komamura, Masaru Iwagaki | 1988-09-13 |
| 4584267 | Thermally developable, light-sensitive material | Kunihiro Koshizuka | 1986-04-22 |
| 4562143 | Method of forming image by means of heat development | Shigeto Hirabayashi, Wataru Ishikawa | 1985-12-31 |
| 4543309 | Heat-developable image-pattern recording material | Shigeto Hirabayashi, Wataru Ishikawa, Tetsuya Harada | 1985-09-24 |
| 4451561 | Heat-development-type image recording material | Shigeto Hirabayashi, Wataru Ishikawa, Tetsuya Harada | 1984-05-29 |
| 4416980 | High-contrast light-sensitive silver halide photographic material | Mitsuto Fujiwhara, Syunji Matsuo, Yutaka Kaneko, Mikio Kawasaki | 1983-11-22 |
| 4390617 | Method for the formation of photographic images | Kenichiro Okaniwa, Kiyoshi Yamashita, Wataru Ishikawa | 1983-06-28 |
| 4373017 | Photosensitive compound and photosensitive material containing it | Wataru Ishikawa, Kenichiro Okaniwa, Kiyoshi Yamashita | 1983-02-08 |
| 4368258 | Process for preparing impregnated polymer latex compositions | Mitsuto Fujiwhara, Syunji Matsuo, Tsuneo Wada, Naoto Abe, Akio Iijima +1 more | 1983-01-11 |
| 4233400 | Light-sensitive silver halide photographic material containing tetrazolium compounds | Mitsuto Fujiwhara, Syunji Matsuo, Yutaka Kaneko, Mikio Kawasaki | 1980-11-11 |