Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5424442 | Water-soluble methine compounds useful in photographic silver halide emulsion containing the same | Keizo Koya, Toshinao Ukai | 1995-06-13 |
| 5250692 | Water-soluble methine compounds useful in photographic silver halide emulsions | Keizo Koya, Toshinao Ukai | 1993-10-05 |
| 5192654 | Silver halide photographic emulsions | Takanori Hioki | 1993-03-09 |
| 4971889 | Silver halide photographic emulsions | Tadashi Ikeda, Satoru Takimoto, Masaki Okazaki | 1990-11-20 |
| 4917997 | Silver halide photographic emulsion | Tadashi Ikeda | 1990-04-17 |
| 4897343 | Silver halide photographic emulsion | Tadashi Ikeda, Shunichi Aida | 1990-01-30 |
| 4814265 | Silver halide photographic light-sensitive material | Takanori Hioki | 1989-03-21 |
| 4800154 | Silver halide photographic emulsion | Masaki Okazaki | 1989-01-24 |
| 4724201 | Photoresponsive material | Masaki Okazaki, Akihiko Ikegawa | 1988-02-09 |
| 4717650 | Silver halide photographic emulsion | Tadashi Ikeda, Masaki Okazaki, Keizo Kimura | 1988-01-05 |
| 4634653 | Direct positive silver halide photographic emulsion | Ichizo Toya, Yuji Mihara | 1987-01-06 |
| 4609621 | Silver halide photographic light-sensitive material | Tadao Sugimoto, Sumito Yamada, Tadashi Ikeda, Masaki Okazaki | 1986-09-02 |
| 4607006 | Silver halide photographic light-sensitive material containing non-spectral sensitizing electron donative silver halide adsorptive compound | Shigeo Hirano, Yasuhisa Sano, Tsutomu Miyasaka, Shinsaku Fujita | 1986-08-19 |
| 4607003 | Photographic element | Toshinao Ukai, Tadahisa Sato, Toshio Kawagishi | 1986-08-19 |
| 4582786 | Silver halide photographic emulsion | Tadashi Ikeda, Hiroshi Yamashita | 1986-04-15 |
| 4555481 | Silver halide photographic emulsions containing benzimidazolocarbocyanine dye having fluoroalkyl group at the nitrogen atom of benzimidazole | Toshinao Ukai, Masaki Okazaki, Ichizo Toya | 1985-11-26 |
| 4555482 | Silver halide photographic emulsion | Noriyuki Inoue, Masaki Okazaki, Kiyohiko Yamamuro | 1985-11-26 |
| 4552828 | Direct positive silver halide photographic emulsion | Ichizo Toya, Yuji Mihara | 1985-11-12 |
| 4546074 | Silver halide color light-sensitive materials | Sadao Kamei, Yuichi Ohashi, Toshinao Ukai, Kiyohiko Yamamuro | 1985-10-08 |
| 4510235 | Silver halide photographic emulsions | Toshinao Ukai, Masaki Okazaki, Ichizo Toya, Sadanobu Syuto | 1985-04-09 |
| 4362813 | Silver halide photographic emulsions | Yuji Mihara, Tadashi Ikeda, Masaki Okazaki, Yasuo Aotsuka | 1982-12-07 |
| 4308345 | Silver halide photographic emulsion | Masanao Hinata, Akira Sato, Atsuo Iwamoto, Jun Hayashi | 1981-12-29 |
| 4307185 | Photographic silver halide emulsions | Masanao Hinata, Akira Sato, Atsuo Iwamoto, Jun Hayashi | 1981-12-22 |
| 4286044 | Silver halide photographic materials | Yuji Mihara, Noriyuki Inoue, Tadashi Ikeda, Kenichi Kuwabara | 1981-08-25 |
| 4266003 | Silver halide photographic emulsions | Tadashi Ikeda, Takeo Sakai, Noriyuki Inoue | 1981-05-05 |