Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5032497 | Silver halide color photo-sensitive material | Noritaka Nakayama, Satoshi Kawakatsu, Katsunori Katoh | 1991-07-16 |
| 4840886 | Silver halide color photographic material containing a 1h-pyrazole (3,2-C)-s-triazole derived magenta coupler | Toshifumi Iijima, Kenji Kumashiro, Hiroshi Kashiwagi, Koichi Hatta, Yuji Hotta +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 |
| 4675280 | Silver halide color photographic material containing a 1H-pyrazolo [3,2-C]- S | Yutaka Kaneko, Kenji Kadokura, Toshihiko Kimura, Noritaka Nakayama, Satoshi Kawakatsu +1 more | 1987-06-23 |
| 4665015 | Silver halide color photographic material containing a magenta coupler | Toshifumi Iijima, Kenji Kumashiro, Hiroshi Kashiwagi, Koichi Hatta, Noritaka Nakayama +2 more | 1987-05-12 |
| 4607002 | Silver halide color photo-sensitive material | Noritaka Nakayama, Satoshi Kawakatsu, Katsunori Katoh | 1986-08-19 |
| 4600688 | Silver halide color photographic light-sensitive material | Satoshi Kawakatsu, Noritaka Nakayama, Katsunori Katoh, Toshihiko Kimura | 1986-07-15 |
| 4548899 | Silver halide color photographic material | Noritaka Nakayama, Satoshi Kawakatsu, Katsunori Katoh | 1985-10-22 |