Issued Patents All Time
Showing 76–88 of 88 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888264 | Process for preparing toner or capsule toner for use in electrophotography | Toshiyuki Koshio, Yasuhide Goseki, Hisayuki Ushiyama, Masuo Yamazaki, Ichiro Ohsaki +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 | Katsutoshi Wakamiya, Masuo Yamazaki | 1987-04-28 |
| 4656111 | Pressure-fixable toner comprising combination of a compound having hydrocarbon chain and a compound having amino group | Katsutoshi Wakamiya, Masuo Yamazaki | 1987-04-07 |
| 4626490 | Encapsulated toner | Masuo Yamazaki, Katsutoshi Wakamiya, Ichiro Ohsaki, Toshiaki Nakahara, Hisayuki Ushiyama | 1986-12-02 |
| 4610944 | Production of toner | Masuo Yamazaki, Katsutoshi Wakamiya | 1986-09-09 |
| 4590142 | Capsule toner | Masuo Yamazaki, Katsutoshi Wakamiya, 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, Katsutoshi Wakamiya, Hisayuki Ushiyama | 1986-04-08 |
| 4430409 | Developer for electrophotography with wet process silicic acid | Masanori Takenouchi | 1984-02-07 |
| 4373469 | Apparatus for developing electrostatic latent images | Tsukasa Kuge, Tsuyoshi Watanabe, Yasuyuki Tamura | 1983-02-15 |
| 4299902 | Image forming process and apparatus therefor | Ikuo Soma, Tamotu Magome | 1981-11-10 |
| 4237592 | Elastic roller for image forming apparatus | Tsukasa Kuge, Tsuyoshi Watanabe | 1980-12-09 |
| 4185129 | Method for developing electrostatic latent images and removal of excess developer | Tsukasa Kuge, Tsuyoshi Watanabe, Yasuyuki Tamura | 1980-01-22 |