Issued Patents All Time
Showing 26–35 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5745820 | Image forming apparatus with a potential generating device | Yoshie Iwakura | 1998-04-28 |
| 5697034 | Image forming apparatus which stably holds a uniform surface potential of a transfer device | Yoshie Iwakura, Takuya Abe, Kiyoshi Toizumi | 1997-12-09 |
| 5623329 | Transfer device for an image forming apparatus | Kouichi Yamauchi, Hiroshi Tachiki, Hiromu Yoshimoto, Atsuyuki Katoh, Yuhi Akagawa +6 more | 1997-04-22 |
| 5598252 | Electronic image forming apparatus with reduced residual carrier and toner attraction | Hideo Yamasa, 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, Hideo Yamasa | 1997-01-07 |
| 5471283 | Device for preventing breakdown of contact charger for use in electrophotographic printing machine | Kouichi Irihara, Hideo Yamasa, Takasumi Wada | 1995-11-28 |
| 5459555 | Electronic image forming apparatus | Hideo Yamasa, Koichi Inui, Shirou Wakahara, Yuuhi Yui, Eiichi Kido +1 more | 1995-10-17 |
| 5317345 | Image formation apparatus having erasing means responsive to operation status | Yoshiharu Ueki | 1994-05-31 |
| 5084627 | Sheet detecting device for use in an image forming device for detecting presence or absence of a sheet, a right or wrong side of a sheet and the kind of sheet | Yoshiharu Ueki, Akira Tamagaki | 1992-01-28 |
| 5077575 | Image forming apparatus equipped with a bucket for accommodating a photosensitive sheet cartridge | Masao Narumiya, Tsuyoshi Takeno | 1991-12-31 |