Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5981154 | Silver halide color photographic light-sensitive material | Yasuo Tosaka, Masayuki Sasagawa | 1999-11-09 |
| 5436116 | Silver halide color photographic photosensitive material and color proof preparation process | Keiichi Hoshino, Yasuo Tosaka, Yoshiyuki Nonaka | 1995-07-25 |
| 4990432 | Silver halide photographic light-sensitive material having a reflective base and an antihalation layer having a specified thickness | Hajime Komatsu, Yasuo Tosaka, Bunzo Ueda, Keiichi Hoshimo | 1991-02-05 |
| 4904580 | Silver halide photographic light-sensitive material | Hajime Komatsu, Fujitsugu Suzuki | 1990-02-27 |