Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5565329 | Method for determining histamine by measuring dissolved oxygen | Osamu Adachi | 1996-10-15 |
| 5370956 | Electrophotographic photoreceptor | Hirokazu Yamamoto, Akira Tanaka, Shoji Tazuki | 1994-12-06 |
| 5254436 | Method for image formation | Masao Koga | 1993-10-19 |
| 5212045 | Method for image formation | Masao Koga | 1993-05-18 |
| 5175088 | Rapid analysis of plural components | Nobuhiko Arakawa, Osamu Oka, Kenichi Numazawa, Yoshio Utugi | 1992-12-29 |
| 5077186 | Silver halide photographic light-sensitive dye containing element | Satoshi Kaneko, Akira Tanaka | 1991-12-31 |
| 5024816 | Apparatus for determining the degree of freshness of raw, frozen and processed fish, poultry and meat | Kei Arai, Yoshio Utsugi, Osamu Oka, Kenichi Numazawa, Kenji Miwa +1 more | 1991-06-18 |
| 4920043 | Method for processing silver halide photographic light-sensitive material | Shoichi Horii | 1990-04-24 |
| 4816373 | Method of producing images | Shoichi Horii, Satoshi Kaneko | 1989-03-28 |
| 4725539 | Method for analyzing plural oxidizable components in a liquid | Nobuhiko Arakawa, Osamu Oka, Kenichi Numazawa, Yoshio Utugi | 1988-02-16 |
| 4702999 | Silver halide photographic light-sensitive materials | Satoshi Kaneko | 1987-10-27 |
| 4665736 | Stirring device for automatically measuring dissolved oxygen | Tadashi Yokoyama, Toshio Kaizuka, Junichi Naito, Kenichi Numazawa, Tomoo Kikuchi | 1987-05-19 |
| 4650752 | Method for determining the freshness of fish and mollusks | Nobuhiko Arakawa, Tomoko Asahara, Shuichi Sakamoto | 1987-03-17 |
| 4427772 | Apparatus having automatic calibration for determining hydrogen peroxide concentration | Yasuo Kodera, Toshiaki Ishii | 1984-01-24 |
| 4420554 | Silver halide photosensitive materials | Kiyoshi Futaki, Katsuaki Iwaosa | 1983-12-13 |
| 4416977 | Silver halide photographic photosensitive material | Kiyoshi Futaki, Katsuaki Iwaosa | 1983-11-22 |
| 4376818 | Novel hardener for gelatin and method for hardening gelatin | Katsuaki Iwaosa | 1983-03-15 |
| 4335200 | Silver halide photographic materials | Katsuaki Iwaosa | 1982-06-15 |
| 4330617 | Photographic elements containing novel developing agent precursors | Katsuaki Iwaosa | 1982-05-18 |
| 4254217 | Hardener-incorporated gelatin composition | Katsuaki Iwaosa | 1981-03-03 |
| 4252627 | Electrical oxygen probe | Youichi Ishikawa, Makoto Shouda, Tamon Watabe | 1981-02-24 |