Issued Patents All Time
Showing 26–41 of 41 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4746603 | Negative type silver halide photographic emulsions | Seiji Yamashita, Naoto Ohshima | 1988-05-24 |
| 4746601 | Silver halide photographic light-sensitive material | Keiji Mihayashi, Hidetoshi Kobayashi | 1988-05-24 |
| 4729944 | Silver halide photographic light-sensitive material | Keiji Mihayashi, Keiichi Adachi, Seiji Ichijima, Hidetoshi Kobayashi | 1988-03-08 |
| 4705743 | Silver halide color photographic light-sensitive material | Keiji Mihayashi | 1987-11-10 |
| 4668614 | Silver halide photographic light sensitive materials | Naoto Ohshima, Shingo Ishimaru | 1987-05-26 |
| 4618572 | Silver halide photographic light-sensitive material | Keiji Mihayashi, Hidetoshi Kobayashi | 1986-10-21 |
| 4526863 | Color photographic material comprising silver halide light-sensitive and non light-sensitive layers | Keiji Mihayashi, Hidetoshi Kobayashi | 1985-07-02 |
| 4435500 | Method for developing silver halide photographic light-sensitive material | Eiichi Okutsu, Nobuyuki Iwasaki | 1984-03-06 |
| 4377634 | Method for forming high contrast photographic image | Hiroyuki Mifune, Yoshitaka Akimura, Yoshiharu Fuseya | 1983-03-22 |
| 4311781 | Highly-sensitive high-contrast photographic materials | Hiroyuki Mifune, Yoshitaka Akimura, Nobuo Sakai | 1982-01-19 |
| 4272606 | Method of forming a high-contrast photographic image | Hiroyuki Mifune, Yoshitaka Akimura, Yoshiharu Fuseya | 1981-06-09 |
| 4243739 | Silver halide photographic light-sensitive material | Hiroyuki Mifune, Yoshitaka Akimura, Shigeo Hirano | 1981-01-06 |
| 4241164 | Highly-sensitive high-contrast photographic materials | Hiroyuki Mifune, Yoshitaka Akimura, Nobuo Sakai | 1980-12-23 |
| 4237214 | Process for forming contrasty image | Hiroyuki Mifune, Yoshitaka Akimura, Nobuyuki Tsujino | 1980-12-02 |
| 4224401 | Silver halide photographic emulsions and image forming process | Yoshitaka Akimura, Hiroyuki Mifune, Nobuyuki Tsujino | 1980-09-23 |
| 4221857 | Process for producing a high contrast photographic image | Eiichi Okutsu, Yoshitaka Akimura, Hiroyuki Mifune | 1980-09-09 |