Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4520099 | Silver halide photographic light-sensitive materials | Hiroyuki Mifune, Koki Nakamura | 1985-05-28 |
| 4452882 | Silver halide photographic materials and process of developing them | Eiichi Okutsu, Shigenori Moriuchi, Naomi Saeki, Taiji Hashimura, Hiroyuki Mifune | 1984-06-05 |
| 4385108 | Method of forming negative dot images | Yoshihiro Takagi, Hiroyuki Mifune, Eiichi Okutsu | 1983-05-24 |
| 4377634 | Method for forming high contrast photographic image | Hiroyuki Mifune, Shunji Takada, Yoshiharu Fuseya | 1983-03-22 |
| 4332878 | Photographic image-forming method | Shigeo Hirano, Hiroyuki Mifune, Eiichi Okutsu | 1982-06-01 |
| 4323643 | Silver halide photographic light-sensitive materials | Hiroyuki Mifune, Shigeo Hirano | 1982-04-06 |
| 4311781 | Highly-sensitive high-contrast photographic materials | Hiroyuki Mifune, Shunji Takada, Nobuo Sakai | 1982-01-19 |
| 4272606 | Method of forming a high-contrast photographic image | Hiroyuki Mifune, Shunji Takada, Yoshiharu Fuseya | 1981-06-09 |
| 4243739 | Silver halide photographic light-sensitive material | Hiroyuki Mifune, Shunji Takada, Shigeo Hirano | 1981-01-06 |
| 4241164 | Highly-sensitive high-contrast photographic materials | Hiroyuki Mifune, Shunji Takada, Nobuo Sakai | 1980-12-23 |
| 4237214 | Process for forming contrasty image | Hiroyuki Mifune, Shunji Takada, Nobuyuki Tsujino | 1980-12-02 |
| 4224401 | Silver halide photographic emulsions and image forming process | Shunji Takada, Hiroyuki Mifune, Nobuyuki Tsujino | 1980-09-23 |
| 4221857 | Process for producing a high contrast photographic image | Eiichi Okutsu, Shunji Takada, Hiroyuki Mifune | 1980-09-09 |