Issued Patents All Time
Showing 26–50 of 50 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4920041 | Method for processing a silver halide color photographic material using a developer substantially free of benzyl alcohol and sulfite | Kazuto Andoh, Takatoshi Ishikawa | 1990-04-24 |
| 4863836 | Method for processing silver halide color photographic materials and color photographic developing composition | Takatoshi Ishikawa, Morio Yagihara | 1989-09-05 |
| 4833068 | Color photographic developing solution composition and method for processing a silver halide color photographic material | Kazuto Andoh, Hiroshi Fujimoto | 1989-05-23 |
| 4801521 | Method for processing silver halide color photographic material with a color developer comprising a hydrazine derivative | Nobuo Seto, Hideaki Naruse, Morio Yagihara, Kazuto Andoh, Takatoshi Ishikawa +1 more | 1989-01-31 |
| 4798783 | Method of processing silver halide color photographic material and photographic color developing composition | Takatoshi Ishikawa, Hiroshi Fujimoto, Morio Yagihara | 1989-01-17 |
| 4770987 | Silver halide color photographic materials containing an antisain agent and a magenta coupler in lipophilic fine particles | Osamu Takahashi, Hideaki Naruse, Masakazu Morigaki, Tadahisa Sato | 1988-09-13 |
| 4746599 | Silver halide color photosensitive materials | Naoyasu Deguchi | 1988-05-24 |
| 4732845 | Silver halide color photographic materials | Mihayashi Keiji | 1988-03-22 |
| 4717651 | Color photographic light-sensitive material | Yoshinobu Yoshida | 1988-01-05 |
| 4704350 | Silver halide color photographic material | Masakazu Morigaki, Osamu Takahashi, Hideaki Naruse | 1987-11-03 |
| 4614707 | Color reversal photographic light-sensitive materials | Munehisa Fujita, Yasuhiro Hayashi, Takashi Ozawa | 1986-09-30 |
| 4584264 | Color photographic light-sensitive materials | Yoshinobu Yoshida | 1986-04-22 |
| 4542086 | Color diffusion transfer element with hydroquinone type compound | Motohiko Tsubota, Masakazu Morigaki, Tsutomu Hamaoka | 1985-09-17 |
| 4530899 | Color photographic materials with phenol or naphthol ring compound having sulfoamido group | Nobuo Furutachi, Yoshinobu Yoshida | 1985-07-23 |
| 4525451 | Color photographic light-sensitive material comprising phenol or naphthol having sulfamoylamino group | Yoshinobu Yoshida | 1985-06-25 |
| 4493888 | Silver halide photographic light-sensitive material | Katsusuke Endo, Eiichi Kato, Takatoshi Ishikawa | 1985-01-15 |
| 4480052 | Heat-sensitive recording materials | Seiji Ichijima, Masato Satomura, Ken Iwakura | 1984-10-30 |
| 4473635 | Silver halide photographic light-sensitive material | Takatoshi Ishikawa, Katsusuke Endo, Sigeru Kuwazima, Eiichi Kato | 1984-09-25 |
| 4439519 | Silver-halide photographic light-sensitive material | Ken Kawata, Isamu Itoh | 1984-03-27 |
| 4429035 | Black and white photographic materials | Eiichi Kato, Junkichi Ogawa | 1984-01-31 |
| 4429031 | Color diffusion transfer photographic element | Motohiko Tsubota, Masakazu Morigaki, Tsutomu Hamaoka | 1984-01-31 |
| 4366226 | Color photographic sensitive material with sulfonamidophenol scavenger | Tsutomu Hamaoka, Osamu Takahashi, Tooru Harada, Minoru Sakai | 1982-12-28 |
| 4358534 | Silver halide color photographic light-sensitive element | Noboru Sasaki, Hidefumi Sera, Jun Yamaguchi | 1982-11-09 |
| 4345016 | Color photographic sensitive material | Osamu Takahashi, Kozo Aoki | 1982-08-17 |
| 4264720 | Color photographic light-sensitive material | Tsutomu Hamaoka, Masakazu Morigaki, Satoru Sawada, Kotaro Nakamura | 1981-04-28 |