Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5236819 | Light-sensitive silver halide photographic material capable of producing a dye image with improved fastness | Katsumasa Yamazaki, Shigeto Hirabayashi | 1993-08-17 |
| 4839264 | Silver halide photographic material | Shuji Kida, Yutaka Kaneko, Shinji Yoshimoto, Kosaku Masuda | 1989-06-13 |
| 4675280 | Silver halide color photographic material containing a 1H-pyrazolo [3,2-C]- S | Yutaka Kaneko, Toshihiko Kimura, Noritaka Nakayama, Satoshi Kawakatsu, Katsunori Katoh +1 more | 1987-06-23 |
| 4639415 | Silver halide color photographic material containing a magenta color image-forming coupler | Yutaka Kaneko, Toshihiko Kimura | 1987-01-27 |
| 4623617 | Silver halide color photographic material | Yutaka Kaneko, Toshihiko Kinura | 1986-11-18 |