Issued Patents All Time
Showing 1–25 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8439352 | Rotation transmission mechanism and paper feeder | Takeji Morikawa | 2013-05-14 |
| 8126379 | Developing device and image forming apparatus | Toru Hayase, Yuusuke Okuno, Shigeki Yamamoto, Kuniya Matsuura | 2012-02-28 |
| 6038415 | Image forming apparatus and image-carrier cartridge device which is employed in the same | Masayuki Nishi, Toru Matsui | 2000-03-14 |
| 6026259 | Contact-type erasing device for image forming apparatus | Hideo Yamaki, Koji Niizawa | 2000-02-15 |
| 5499090 | Image forming apparatus having a toner recycling mechanism | Noboru Ito, Hirokazu Yoshida, Fumio Masuda | 1996-03-12 |
| 5385801 | Method of developing electrostatic latent image | Yoshihisa Terasaka, Junji Ohtani, Junji Machida, Tamotsu Shimizu, Hiroshi Mizuno | 1995-01-31 |
| 5311262 | Developing device for use in an image forming apparatus | Tamotsu Shimizu, Masahiko Matsuura, Susumu Mikawa | 1994-05-10 |
| 5307128 | Toner supplying device | Masanori Fujiwara | 1994-04-26 |
| 5206690 | Developing roller with an identical polarity magnetic part | Tamotsu Shimizu, Masahiko Matsuura, Susumu Mikawa | 1993-04-27 |
| 5140373 | Electrostatic latent image developing apparatus with bristle height adjusting member | Akihito Ikegawa, Hiroshi Mizuno, Kouichi Etou | 1992-08-18 |
| 5012285 | Developing apparatus including a partitioning arrangement for partitioning the toner accommodating tank | Tateki Oka, Naoki Toyoshi, Tomoaki Yokoyama, Hiroshi Mizuno, Akihito Ikegawa +2 more | 1991-04-30 |
| 4987452 | Developing apparatus provided with a chamber for controlling toner grain diameter | Shuichi Nakagawa, Akihito Ikegawa, Kouichi Etou, Hiroshi Mizuno | 1991-01-22 |
| 4947212 | Developing apparatus with color dependent toner supply voltage | Akihito Ikegawa, Hiroshi Mizuno, Kouichi Etou | 1990-08-07 |
| 4924806 | Developing apparatus | Hiroshi Mizuno, Akihito Ikegawa, Kouichi Etou | 1990-05-15 |
| 4920916 | Electrostatic latent image developing device | Hiroshi Mizuno, Toshiya Natsuhara, Yuji Enoguchi, Akihito Ikegawa, Masasi Yamamoto | 1990-05-01 |
| 4912511 | Developing device capable of preventing a developer from passing through the space between adjacent developing sleeves | — | 1990-03-27 |
| 4851872 | Developing device with developer sleeve facilitating developer supply adjustment by bristle height regulating member | Hiroshi Mizuno, Akihito Ikegawa, Kouichi Etou | 1989-07-25 |
| 4819027 | Developing apparatus | Hiroshi Mizuno, Akihito Ikegawa, Kouichi Etou | 1989-04-04 |
| 4809034 | Developing device | Hiroshi Mizuno, Akihito Ikegawa, Kouichi Etou | 1989-02-28 |
| 4786936 | Electrostatic latent image developing device | Akihito Ikegawa, Hiroshi Mizuno, Kouichi Etou | 1988-11-22 |
| 4436406 | Paper feeder for recording apparatus | Masaya Ogawa, Yuji Enoguchi, Mikio Masui | 1984-03-13 |
| 4417365 | Cleaning apparatus | — | 1983-11-29 |
| 4396276 | Electronic copying machine | — | 1983-08-02 |
| 4334766 | Blade-type cleaning device for electrophotograhic copying machine | Takashi Sugiyama, Masaya Ogawa | 1982-06-15 |
| 4284345 | Blade-type cleaning device for electrophotographic copying machine | Takashi Sugiyama, Masaya Ogawa | 1981-08-18 |