Issued Patents All Time
Showing 51–70 of 70 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5057407 | Silver halide photographic material | Yasuo Mukunoki | 1991-10-15 |
| 5028510 | Silver halide photographic material | Takahiro Goto, Kazonobu Katoh | 1991-07-02 |
| 5017456 | Silver halide photographic material | Kazunobu Katoh | 1991-05-21 |
| 4950405 | Functional thin organic membrane | Tsutomu Miyasaka, Yukio Maekawa | 1990-08-21 |
| 4897344 | Method of hardening gelatin | Hiroshi Kawamoto, Hiroshi Kawasaki | 1990-01-30 |
| 4863841 | Silver halide color photographic material | Hidetoshi Kobayashi, Toshihiro Nishikawa, Koji Tamoto | 1989-09-05 |
| 4828974 | Photographic light-sensitive material containing gelatin hardener | Hiroshi Kawamoto | 1989-05-09 |
| 4751173 | Process for hardening gelatin | Hiroshi Kawamoto | 1988-06-14 |
| 4710456 | Silver halide photographic material | Takashi Naoi, Takashi Fujioka, Masaki Satake | 1987-12-01 |
| 4708927 | Photographic elements with development inhibitor precursor | Hiroshi Kawamoto, Yoshio Sakakibara | 1987-11-24 |
| 4673632 | Hardening method for gelatin | Hiroshi Kawamoto, Hisashi Shiraishi | 1987-06-16 |
| 4668616 | Process for hardening gelatin | Hiroshi Kawamoto | 1987-05-26 |
| 4618573 | Silver halide color photographic material | Hidetoshi Kobayashi, Toshihiro Nishikawa, Koji Tamoto | 1986-10-21 |
| 4612280 | Hardened gelatin and method for hardening gelatin | Hiroshi Kawamoto | 1986-09-16 |
| 4584257 | Photographic elements containing naphthylsulfonylethylthio heterocycle developement inhibitor precursor | Yoshio Sakakibara | 1986-04-22 |
| 4558001 | Silver halide photographic light-sensitive materials containing nonionic surface active antistatic agent | Shigeki Yokoyama, Yukio Maekawa, Hiroshi Kawasaki | 1985-12-10 |
| 4511644 | Photographic elements with development inhibitor precursor | Shinji Sakaguchi, Osamu Takahashi, Ashita Murai | 1985-04-16 |
| 4506001 | Photographic recording material containing novel coordination polymer | Shinji Sakaguchi, Shigeru Nakamura | 1985-03-19 |
| 4506002 | Diffusion transfer photographic elements with polymer grafted pigment | Hideki Takaki, Hiroshi Hayashi, Shigetoshi Ono | 1985-03-19 |
| 4472493 | Photographic elements with development inhibitor precursors | Yukio Maekawa, Yukio Karino | 1984-09-18 |