Issued Patents All Time
Showing 51–75 of 75 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6180818 | Silver halide photographic material and hydroxamic acid-base compound for use therein | Hiroo Takizawa, Junichiro Hosokawa, Yoshio Ishii, Keiji Mihayashi, Masakazu Morigaki +1 more | 2001-01-30 |
| 6132945 | Silver halide color photographic material | Naoki Saito, Masakazu Morigaki, Yasuhiro Yoshioka, Shin Soejima, Osamu Takahashi | 2000-10-17 |
| 6114570 | Silver halide photographic material and hydroxamic acid-based compound for use therein | Hiroo Takizawa, Junichiro Hosokawa, Yoshio Ishii, Keiji Mihayashi, Masakazu Morigaki +1 more | 2000-09-05 |
| 6068969 | Silver halide color photographic light-sensitive material and method for forming an image using the same | Shin Soejima, Yasuhiro Shimada, Osamu Takahashi, Yasuaki Deguchi | 2000-05-30 |
| 6057090 | Silver halide photographic material and hydroxamic acid-based compound used therefor | Mamoru Sakurazawa, Masakazu Morigaki | 2000-05-02 |
| 5851754 | Silver halide photographic material and hydroxamic acid-base compound for use therein | Hiroo Takizawa, Junichiro Hosokawa, Yoshio Ishii, Keiji Mihayashi, Masakazu Morigaki +1 more | 1998-12-22 |
| 5840886 | Silver halide photographic material and hydroxamic acid based compound used therefore | Hiroo Takizawa, Junichiro Hosokawa, Yoshio Ishii, Keiji Mihayashi, Masakazu Morigaki | 1998-11-24 |
| 5719007 | Silver halide color photographic material | Mamoru Sakurazawa, Masakazu Morigaki | 1998-02-17 |
| 5667959 | Silver halide photographic material and hydroxamic acid based compound used therefor | Hiroo Takizawa, Junichiro Hosokawa, Yoshio Ishii, Keiji Mihayashi, Masakazu Morigaki | 1997-09-16 |
| 5665529 | Color diffusion transfer photographic material | Atsuhiro Ohkawa, Masaaki Tsukase, Yasuhiro Ishiwata, Hideaki Naruse | 1997-09-09 |
| 5563025 | Silver halide color photographic material | Yoshio Ishii, Keiji Mihayashi, Masayuki Negoro, Masakazu Morigaki | 1996-10-08 |
| 5508421 | Pyrrolotriazole azomethine dye, and heat transfer dye providing material containing a pyrrolotriazole azomethine dye | Makoto Suzuki, Seiiti Kubodera, Osamu Takahashi, Yasuhiro Shimada, Koushin Matsuoka +3 more | 1996-04-16 |
| 5403811 | Thermal transfer dye donating materials | Mitsugu Tanaka, Masakazu Morigaki, Seiiti Kubodera | 1995-04-04 |
| 5391720 | Imidazole dyes formed by reaction of imidazoles with diazonium salts | Tomomi Tateishi | 1995-02-21 |
| 5344933 | Pyrrole ring-or condensed pyrrole ring-containing azomethine dye | Katsuyoshi Yamakawa, Kozo Sato, Koushin Matsuoka | 1994-09-06 |
| 5310634 | Color developing agent and image forming process | Mitsugu Tanaka, Kei Sakanoue | 1994-05-10 |
| 5262377 | Thermal transfer dye donating materials | Mitsugu Tanaka, Masakazu Morigaki, Seiiti Kubodera | 1993-11-16 |
| 5238903 | Heat-transfer dye-donating material | Mitsugu Tanaka, Seiiti Kubodera | 1993-08-24 |
| 5227359 | Heat transfer dye providing material | Mitsugu Tanaka, Seiiti Kubodera | 1993-07-13 |
| 5223380 | Color developing agent and process for forming image | Mitsugu Tanaka | 1993-06-29 |
| 5210200 | Heterocyclic dye compounds | Yasuhiro Shimada, Hideo Usui | 1993-05-11 |
| 5122611 | Method of producing azomethine or indoaniline series dyes | Mitsugu Tanaka | 1992-06-16 |
| 4987120 | Thermosensitive transfer material | Mitsugu Tanaka, Seiiti Kubodera | 1991-01-22 |
| 4975409 | Heat transfer dye providing material | Mitsugu Tanaka, Seiiti Kubodera | 1990-12-04 |
| 4973573 | Thermal transfer dye-providing material | Mitsugu Tanaka, Seiiti Kubodera | 1990-11-27 |