Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4681832 | Electrophotographic liquid developer | Hiromichi Tachikawa, Hiroaki Yokoya, Syu Watarai | 1987-07-21 |
| 4268627 | Photographic light-sensitive material | Hidefumi Sera, Masasi Ogawa, Kunio Ishigaki, Hisashi Shiraishi | 1981-05-19 |