Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888264 | Process for preparing toner or capsule toner for use in electrophotography | Toru Matsumoto, Toshiyuki Koshio, Yasuhide Goseki, Hisayuki Ushiyama, Masuo Yamazaki +3 more | 1989-12-19 |
| 4740443 | Encapsulated electrostatic toner with locally attached non-magnetic inorganic particles | Toshiaki Nakahara, Yasuhide Goseki, Toshiyuki Koshio, Hisayuki Ochi, Hisayuki Ushiyama +4 more | 1988-04-26 |