Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11507649 | Optical fingerprint authentication device | Kazuyoshi Omata, Tsukasa Yagi, Natsuki Yamamoto | 2022-11-22 |
| 10853465 | Optical fingerprint authentication device | Kazuyoshi Omata, Tsukasa Yagi, Natsuki Yamamoto | 2020-12-01 |
| 9929379 | Method for producing organic electroluminescent element | Yoriko Nakayama | 2018-03-27 |
| 5541052 | Silver halide photographic material having improved keeping quality | Hiroshi Okusa, Syoji Matsuzaka | 1996-07-30 |
| 5523202 | Silver halide emulsion and process for its preparation | Sadayasu Ishikawa, Yoshikazu Ito | 1996-06-04 |
| 5518874 | Method of manufacturing a silver halide emulsion | Yoshiro Ito, Syoji Matsuzaka | 1996-05-21 |
| 5362470 | Ultrafine gold and/or silver chalcogenide and production thereof | Haruhiko Masutomi, Naoko Uchida, Kazuyoshi Ichikawa | 1994-11-08 |
| 5362619 | High-speed halide photographic light-sensitive material | Kouji Tashiro, Hiroyuki Hoshino, Shuji Murakami, Shoji Matsuzaka | 1994-11-08 |
| 5358841 | Method for preparing a silver halide emulsion | — | 1994-10-25 |
| 5340710 | Photosensitive silver halide photographic material | Yukio Ohya, Syoji Matsuzaka, Yasushi Irie, Shuji Murakami, Satomi Asano +1 more | 1994-08-23 |
| 5334359 | Apparatus for production of sparingly water-soluble salt crystal grains | Haruhiko Masutomi, Naoko Uchida, Chikao Mamiya | 1994-08-02 |
| H1196 | Color photographic light-sensitive material excellent in color | Fumie Fukazawa, Katuya Yabuuchi | 1993-06-01 |
| 5200308 | Color photographic material | Hiroshi Shimazaki, Yoshitaka Yamada | 1993-04-06 |
| 5041366 | Silver halide photographic material | Satomi Asano, Hiroshi Okusa, Nobuaki Kagawa, Syoji Matsuzaka | 1991-08-20 |
| 5039601 | Silver halide emulsions with silver halide grain groups of different desensitizing agent content | Yukio Ohya, Syoji Matsuzaka, Yoshiro Ito, Mineko Ito | 1991-08-13 |
| 4996140 | Silver halide photographic material | Tomoyuki Nakayama, Hiroyuki Hoshino, Syoji Matsuzaka | 1991-02-26 |
| 4704351 | Dye sensitized light-sensitive core/shell silver halide photographic material | Hideki Takiguchi, Yoshitaka Yamada, Hiroshi Kashiwagi | 1987-11-03 |
| 4701405 | Dye-sensitized light-sensitive core/shell silver halide photographic material | Hideki Takiguchi, Yoshitaka Yamada, Hiroshi Kashiwagi | 1987-10-20 |