Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4840886 | Silver halide color photographic material containing a 1h-pyrazole (3,2-C)-s-triazole derived magenta coupler | Toshifumi Iijima, Kenji Kumashiro, Koichi Hatta, Yuji Hotta, Hiroko Ohya +4 more | 1989-06-20 |