Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5340710 | Photosensitive silver halide photographic material | Yukio Ohya, Syoji Matsuzaka, Yasushi Irie, Shuji Murakami, Hiroshi Okusa +1 more | 1994-08-23 |
| 5041366 | Silver halide photographic material | Hiroshi Okusa, Nobuaki Kagawa, Hirofumi Ohtani, Syoji Matsuzaka | 1991-08-20 |