Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5240826 | Silver halide photographic light-sensitive materials | Hideo Ikeda, Shigeru Ohno | 1993-08-31 |
| 5112731 | Silver halide photographic material | — | 1992-05-12 |
| 4873181 | Silver halide photographic material | Shuzo Suga | 1989-10-10 |
| 4859576 | Silver halide photographic material comprising a protective layer containing a polyoxyethylene surface active agent | Shigeki Yokoyama, Shuzo Suga, Takashi Naoi, Masaki Satake | 1989-08-22 |
| 4853323 | Silver halide emulsion | Hideo Ikeda, Shuzo Suga | 1989-08-01 |
| 4818675 | Silver halide photographic light sensitive material with improved silver blackness of picture image | Hideo Ikeda, Minoru Sakai, Shigeru Ohno, Yasuo Mukunoki | 1989-04-04 |
| 4657847 | Silver halide photographic light-sensitive materials | Hideo Ikeda, Shigeru Ohno, Koki Nakamura | 1987-04-14 |
| 4624913 | Silver halide photographic light-sensitive materials | Koki Nakamura, Shigeki Yokoyama | 1986-11-25 |
| 4474872 | Method for producing photographic emulsion | Hiroshi Onishi, Kazutoshi Inada, Naoyasu Deguchi, Masayuki Kuroishi | 1984-10-02 |
| 4276374 | Silver halide photographic emulsion with thioether sensitizer | Hiroyuki Mifune, Yoshiharu Fuseya | 1981-06-30 |