Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4847149 | Base for reflection-photographic elements | Kazuto Kiyohara, Naoko Shimomura | 1989-07-11 |
| 4628025 | Polyester support for photographic use | Toshiki Komaita, Takanori Nakadate, Kazuto Kiyohara | 1986-12-09 |