Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888264 | Process for preparing toner or capsule toner for use in electrophotography | Toru Matsumoto, Toshiyuki Koshio, Yasuhide Goseki, Masuo Yamazaki, Ichiro Ohsaki +3 more | 1989-12-19 |
| 4797344 | Encapsulated toner having shell with first vinyl polymer with Mn of 2000-225000 and second vinyl polymer with Mn of 1000-15000 | Toshiaki Nakahara, Ichiro Ohsaki, Masashi Kiuchi, Masuo Yamazaki, Yasuhide Goseki +1 more | 1989-01-10 |
| 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 |
| 4626490 | Encapsulated toner | Masuo Yamazaki, Katsutoshi Wakamiya, Toru Matsumoto, Ichiro Ohsaki, Toshiaki Nakahara | 1986-12-02 |
| 4590142 | Capsule toner | Masuo Yamazaki, Toru Matsumoto, Katsutoshi Wakamiya, Ichiro Ohsaki, Toshiaki Nakahara | 1986-05-20 |
| 4581312 | Pressure-fixable capsule toner comprising pressure fixable core material and vinyl polymer shell material | Toshiaki Nakahara, Ichiro Ohsaki, Masuo Yamazaki, Katsutoshi Wakamiya, Toru Matsumoto | 1986-04-08 |
| 4565764 | Microcapsule toner and process of making same | Toshiaki Nakahara, Ichiro Ohsaki | 1986-01-21 |
| 4514485 | Developer for electrophotography having carrier particles, toner particles and electroconductive fine powders | Hisayuki Ochi, Tatsuo Miyamae, Katsutoshi Wakamiya | 1985-04-30 |
| 4497885 | Pressure-fixable microcapsule toner | Ichiro Ohsaki, Masanori Takenouchi, Toshiaki Nakahara | 1985-02-05 |
| 4254201 | Pressure sensitive adhesive toner of clustered encapsulated porous particles for use in electrostatic photography | Yuji Sawai | 1981-03-03 |