Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5300410 | Developer for silver halide photographic light-sensitive material | Sukeaki Date, Toshiro Kondo, Eiji MATSUBARA, Masao Okushima, Seiichi Sumi | 1994-04-05 |
| 5102780 | Silver halide photographic photosensitive material | Seiichi Sumi, Kazuhisa Kobayashi, Yoshio Shibata | 1992-04-07 |