Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4289071 | Shallow relief non-bottoming photopolymer printing plate | Robert W. Hallman, Koichi Kimoto | 1981-09-15 |
| 4283481 | Element having phosphine activated photosensitive compositions therein | Koichi Kimoto | 1981-08-11 |
| 4233391 | Water developable photopolymerizable compositions containing phosphine activators and saponified polyvinyl acetate | Koichi Kimoto | 1980-11-11 |