Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6097410 | Method and apparatus for forming an image on a recording medium wherein ink emission is accurately controlled by varying the surface level of chargeable developer ink | Kouichi Irihara | 2000-08-01 |
| 6084614 | Method and apparatus for forming an image using flying developing particles | Kouichi Irihara | 2000-07-04 |
| 6049345 | Image forming apparatus selectively charging toner using doctor blade | Yukihito Nishio, Shiro Narikawa, Hirokazu Fujita, Yoshinobu Okumura, Takeshi Iriuchijima | 2000-04-11 |
| 6025859 | Electrostatic printer having an array of optical modulating grating valves | Atsushi Ide, Yoichi Yamamoto | 2000-02-15 |
| 5629726 | Image forming apparatus with electrostatically controlled developer particle manipulation | — | 1997-05-13 |
| 5598252 | Electronic image forming apparatus with reduced residual carrier and toner attraction | Fumio Shimazu, Koichi Inui, Shirou Wakahara, Yuuhi Yui, Eiichi Kido +1 more | 1997-01-28 |
| 5592270 | Developing device in an electrophotographic apparatus capable of controlling a discharge of deteriorated developer and method of discharging deteriorated developer | Yasuhiro Takai, Hideaki Hagihara, Hirokazu Tanaka, Atsushi Ueda, Fumio Shimazu | 1997-01-07 |
| 5572300 | Developing device containing for storing developer having zoner and carrier | Yasuhiro Takai, Atsushi Ueda, Hirokazu Tanaka | 1996-11-05 |
| 5548385 | Developer device that gradually replaces degraded developer with fresh developer | Yasuhiro Takai, Atsushi Ueda, Hirokazu Tanaka | 1996-08-20 |
| 5471283 | Device for preventing breakdown of contact charger for use in electrophotographic printing machine | Kouichi Irihara, Fumio Shimazu, Takasumi Wada | 1995-11-28 |
| 5459555 | Electronic image forming apparatus | Fumio Shimazu, Koichi Inui, Shirou Wakahara, Yuuhi Yui, Eiichi Kido +1 more | 1995-10-17 |
| 5430532 | Developing device with a tilt detecting function designed for a trickle system | Atsushi Ueda, Yasuhiro Takai, Hirokazu Tanaka, Kouichi Irihara | 1995-07-04 |