Issued Patents All Time
Showing 1–9 of 9 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, Junichi Kurimoto, Yasuhide Goseki, Toshiyuki Koshio, Hisayuki Ochi +4 more | 1988-04-26 |
| 4661430 | Developing method and insulating nonmagnetic toner therefor | Toru Matsumoto, Masuo Yamazaki | 1987-04-28 |
| 4656111 | Pressure-fixable toner comprising combination of a compound having hydrocarbon chain and a compound having amino group | Toru Matsumoto, Masuo Yamazaki | 1987-04-07 |
| 4626490 | Encapsulated toner | Masuo Yamazaki, Toru Matsumoto, Ichiro Ohsaki, Toshiaki Nakahara, Hisayuki Ushiyama | 1986-12-02 |
| 4610944 | Production of toner | Toru Matsumoto, Masuo Yamazaki | 1986-09-09 |
| 4590142 | Capsule toner | Masuo Yamazaki, Toru Matsumoto, Ichiro Ohsaki, Toshiaki Nakahara, Hisayuki Ushiyama | 1986-05-20 |
| 4581312 | Pressure-fixable capsule toner comprising pressure fixable core material and vinyl polymer shell material | Toshiaki Nakahara, Ichiro Ohsaki, Masuo Yamazaki, Toru Matsumoto, Hisayuki Ushiyama | 1986-04-08 |
| 4514485 | Developer for electrophotography having carrier particles, toner particles and electroconductive fine powders | Hisayuki Ushiyama, Hisayuki Ochi, Tatsuo Miyamae | 1985-04-30 |