Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4840886 | Silver halide color photographic material containing a 1h-pyrazole (3,2-C)-s-triazole derived magenta coupler | Toshifumi Iijima, Kenji Kumashiro, Hiroshi Kashiwagi, Yuji Hotta, Hiroko Ohya +4 more | 1989-06-20 |
| 4695533 | Silver halide photographic light-sensitive material | Noritaka Nakayama, Satoshi Kawakatsu, Katsunori Katoh, Toshijumi Iijima, Kenji Kumashiro +7 more | 1987-09-22 |
| 4665015 | Silver halide color photographic material containing a magenta coupler | Toshifumi Iijima, Kenji Kumashiro, Hiroshi Kashiwagi, Noritaka Nakayama, Satoshi Kawakatsu +2 more | 1987-05-12 |