Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4857433 | Electrophotographic toner for high speed electrophotography | Akio Fujiwara, Hiroshi Taniwaki | 1989-08-15 |
| 4849316 | Heat fixing electrophotographic toner containing olefin wax | Shoji Kawaski, Hisatomo Sato, Takashi Yamamoto | 1989-07-18 |
| 4833057 | Toner composition for the electrophotography | Akira Misawa, Hisatomo Sato, Keiichi Ishikawa, Akio Fujiwara, Kazuo Hisamatsu +2 more | 1989-05-23 |