Issued Patents All Time
Showing 26–41 of 41 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5009973 | Image forming method and image forming apparatus | Satoshi Yoshida, Hirohide Tanikawa, Kiichiro Sakashita | 1991-04-23 |
| 4999272 | Electrophotographic analog and digital imaging and developing using magnetic toner | Hirohide Tanikawa, Satoshi Yoshida, Masatsugu Fujiwara, Kiichiro Sakashita | 1991-03-12 |
| 4985327 | Non-magnetic toner | Kiichiro Sakashita, Hirohide Tanikawa, Satoshi Yoshida, Naoki Matsushige, Masatsugu Fujiwara +1 more | 1991-01-15 |
| 4978597 | Image forming method and image forming apparatus utilizing a toner-carrying member with spherical concavities | Hirohide Tanikawa | 1990-12-18 |
| 4966829 | Toner for developing electrostatic images, binder therefor and process for production thereof | Satoshi Yasuda, Kiichiro Sakashita, Yasuo Mitsuhashi, Seiichi Takagi, Shuichi Aita +1 more | 1990-10-30 |
| 4957840 | Developer and image forming device | Kiichiro Sakashita, Hirohide Tanikawa, Naoki Matsushige, Satoshi Yoshida, Masatsugu Fujiwara +1 more | 1990-09-18 |
| 4952476 | Electrophotographic magnetic toner containing polyalkylene and vinyl polymer | Kiichiro Sakashita, Hirohide Tanikawa, Satoshi Yoshida | 1990-08-28 |
| 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 |
| 4857432 | Toner for developing electrostatic charge image | Hirohide Tanikawa, Keita Nozawa | 1989-08-15 |
| 4797344 | Encapsulated toner having shell with first vinyl polymer with Mn of 2000-225000 and second vinyl polymer with Mn of 1000-15000 | Ichiro Ohsaki, Hisayuki Ushiyama, Masashi Kiuchi, Masuo Yamazaki, Yasuhide Goseki +1 more | 1989-01-10 |
| 4740443 | Encapsulated electrostatic toner with locally attached non-magnetic inorganic particles | Junichi Kurimoto, Yasuhide Goseki, Toshiyuki Koshio, Hisayuki Ochi, Hisayuki Ushiyama +4 more | 1988-04-26 |
| 4626490 | Encapsulated toner | Masuo Yamazaki, Katsutoshi Wakamiya, Toru Matsumoto, Ichiro Ohsaki, Hisayuki Ushiyama | 1986-12-02 |
| 4590142 | Capsule toner | Masuo Yamazaki, Toru Matsumoto, Katsutoshi Wakamiya, Ichiro Ohsaki, Hisayuki Ushiyama | 1986-05-20 |
| 4581312 | Pressure-fixable capsule toner comprising pressure fixable core material and vinyl polymer shell material | Ichiro Ohsaki, Masuo Yamazaki, Katsutoshi Wakamiya, Toru Matsumoto, Hisayuki Ushiyama | 1986-04-08 |
| 4565764 | Microcapsule toner and process of making same | Ichiro Ohsaki, Hisayuki Ushiyama | 1986-01-21 |
| 4497885 | Pressure-fixable microcapsule toner | Hisayuki Ushiyama, Ichiro Ohsaki, Masanori Takenouchi | 1985-02-05 |