Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5004680 | High-speed and well-preservable silver halide photographic light-sensitive material | Toshihiko Yagi, Hideki Takiguchi | 1991-04-02 |
| 5002859 | Method of forming color photographic images | Satoru Kuse, Masao Ishikawa, Shigeharu Koboshi, Yoshiharu Mochizuki | 1991-03-26 |
| 5002865 | Silver halide photographic material | Hiroshi Kashiwagi, Syoji Matsuzaka, Toshifumi Iijima | 1991-03-26 |
| 4990437 | Silver halide photographic light-sensitive material | Toshifumi Iijima, Syoji Matsuzaka, Hiroshi Kashiwagi | 1991-02-05 |
| 4977069 | Silver halide color photographic light sensitive material | Toshifumi Iijima, Yoshitaka Yamada, Hideo Akamatsu, Takashi Kamio | 1990-12-11 |
| 4840886 | Silver halide color photographic material containing a 1h-pyrazole (3,2-C)-s-triazole derived magenta coupler | Toshifumi Iijima, Hiroshi Kashiwagi, Koichi Hatta, Yuji Hotta, Hiroko Ohya +4 more | 1989-06-20 |
| 4766058 | Silver halide photographic material with a specified silver density and dry thickness | Takeshi Sampei, Toshifumi Iijima, Yoshitaka Yamada, Hiroshi Shimazaki, Yoshiharu Mochizuki +2 more | 1988-08-23 |
| 4752558 | Light-sensitive silver halide color photographic material | Shinya Shimura, Yoshitaka Yamada, Toshifumi Iijima, Takashi Kamio | 1988-06-21 |
| 4724198 | Light-sensitive silver halide color photographic material having multi-layered red-sensitive, green-sensitive and blue-sensitive emulsion layers | Yoshitaka Yamada, Toshifumi Iijima, Takashi Kamio, Shinya Shimura | 1988-02-09 |
| 4701404 | Silver halide color photographic material of high sensitivity and improved granularity | Toshifumi Iijima, Yoshitaka Yamada, Takashi Kamio, Shinya Shimura | 1987-10-20 |
| 4695533 | Silver halide photographic light-sensitive material | Noritaka Nakayama, Satoshi Kawakatsu, Katsunori Katoh, Toshijumi Iijima, Hiroshi Kashiwagi +7 more | 1987-09-22 |
| 4692400 | Silver halide photographic light-sensitive material | Toshifumi Iijima, Hideo Akamatsu, Syoji Matsuzaka | 1987-09-08 |
| 4665015 | Silver halide color photographic material containing a magenta coupler | Toshifumi Iijima, Hiroshi Kashiwagi, Koichi Hatta, Noritaka Nakayama, Satoshi Kawakatsu +2 more | 1987-05-12 |
| 4554247 | Silver halide photographic material | Kiyotoshi Yamashita, Minoru Ishikawa, Hideo Ohta | 1985-11-19 |
| 4481288 | Light-sensitive silver halide photographic material | Yoshitaka Yamada, Toshifumi Iijima, Toshihiko Yagi, Yoshihiro Haga, Hiroshi Menjo | 1984-11-06 |
| 4480028 | Silver halide color photographic light-sensitive material | Kazuo Kato, Yoshikazu Watanabe, Satoru Shimba | 1984-10-30 |
| 4477559 | Photosensitive silver halide color photographic materials | Masao Iwamuro | 1984-10-16 |