Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4415645 | Developer for electrophotography and process for preparation thereof | Tatsuo Aizawa | 1983-11-15 |
| 4388396 | Electrophotographic process of developing and transfering images uses fluorine containing offset preventing agent in developer | Hatsumi Nishibayashi, Yoshimi Amagai, Norio Hikake, Tatsuo Aizawa | 1983-06-14 |
| 4357406 | Developer for electrophotography and process for preparation thereof | Tatsuo Aizawa | 1982-11-02 |
| 4267246 | Pressure or heated roller electrophoto image fixing uses halogen or nitrile containing polymer dispersed within resin binder as offset prevent toner | Katsumi Nishibayashi, Yoshimi Amagai, Norio Hikake, Tatsuo Aizawa | 1981-05-12 |
| 4265992 | Coated magnetic developer particles for electrophotography containing vinyl and olefin resins | Hiroshi Takayama, Tatsuo Aizawa | 1981-05-05 |