Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4874689 | Silver halide color photographic material | Shigetoshi Ono, Tsumoru Hirano, Toshiyuki Watanabe, Nobuo Sakai, Keiji Mihayashi | 1989-10-17 |
| 4861852 | Polymer mordant | Masaharu Toriuchi | 1989-08-29 |
| 4839269 | Light-responsive material containing a dye comprising two cyclodextrin groups | Masaki Okazaki | 1989-06-13 |