Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871647 | Method of forming color diffusion transfer image by heat development | Tawara Komamura, Satoru Ikeuchi, Takashi Sasaki, Wataru Ishikawa | 1989-10-03 |
| 4840870 | Heat-transfer image-receiving element | Toyoaki Masukawa, Tawara Komamura, Wataru Ishikawa, Kimie Hoshino | 1989-06-20 |
| 4840882 | Heat developable color light-sensitive material | Takashi Sasaki, Tawara Kumamura, Fumio Ishii, Kunihiro Koshizuka | 1989-06-20 |
| 4837141 | Thermally developable light-sensitive material containing a development restrainer compound | Junichi Kohno, Ken Okauchi, Sohei Goto, Tawara Komamura | 1989-06-06 |