Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877701 | Photosensitive member for electrophotography | Masaaki Hiro, Hisami Tanaka, Noboru Kashimura, Shigemori Tanaka, Hitoshi Tohma +1 more | 1989-10-31 |
| 4863823 | Electrophotographic member with the surface layer having a fluorine type resin powder and a fluorine type block polymer | Masaaki Hiro, Toshiyuki Yoshihara, Yoichi Kawamorita, Masaru Nakagawa | 1989-09-05 |
| 4855202 | Electrophotographic photosensitive member | Toshiyuki Yoshihara | 1989-08-08 |
| 4803337 | Method for producing a light transmitting filter | Reiji Ishikawa | 1989-02-07 |