Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4857433 | Electrophotographic toner for high speed electrophotography | Masaaki Shin, Akio Fujiwara | 1989-08-15 |
| 4727010 | Electrophotographic process uses toner comprising vinyl copolymer | Masaaki Shin, Akio Fujiwara | 1988-02-23 |