Issued Patents All Time
Showing 26–48 of 48 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8538301 | Developing device and image forming apparatus with soft blocking dissolving features | — | 2013-09-17 |
| 8406661 | Developing device and image forming apparatus provided therewith | Yoshihiro Yamagishi, Eiji Nimura, Ikuo Makie, Masaki Hayashi, Koji Kuramashi +1 more | 2013-03-26 |
| 8014690 | Developing unit and image forming apparatus | Shoichi Sakata, Toyotsune Inoue, Akihiro Watanabe, Masashi Fujishima, Yukihiro Mori | 2011-09-06 |
| 7941080 | Image forming apparatus | Shoichi Sakata, Kiyotaka Kobayashi, Yukihiro Mori | 2011-05-10 |
| 7848686 | Developing device and image forming apparatus | Toyotsune Inoue, Akihiro Watanabe, Masashi Fujishima, Shoichi Sakata, Yukihiro Mori | 2010-12-07 |
| 7826781 | Image forming apparatus with controlled application of alternating-current bias | Masashi Fujishima, Shoichi Sakata, Toyotsune Inoue, Akihiro Watanabe, Yukihiro Mori | 2010-11-02 |
| 7787807 | Developing unit and image forming apparatus including the same | Shoichi Sakata | 2010-08-31 |
| 7742727 | Image forming apparatus | Shoichi Sakata, Toyotsune Inoue, Akihiro Watanabe, Masashi Fujishima, Yukihiro Mori | 2010-06-22 |
| 7680422 | Image forming apparatus and image forming method | Takaaki Kamei | 2010-03-16 |
| 7519315 | Developing unit | Eiji Tatsumi | 2009-04-14 |
| 7493068 | Developing unit with agitation transport members | Eiji Tatsumi | 2009-02-17 |
| 7483655 | Developing unit with a housing assembly | Eiji Tatsumi | 2009-01-27 |
| 6668142 | Image forming apparatus with reference density changed according to low frequent and high frequent modes | Tetsuro Tomoe, Kenichi Tanabe, Akane Kikuta | 2003-12-23 |
| 6374068 | Part-replacement aid tool and image forming apparatus to which the same is attachable | Kazuo Joroku, Yoshizo Kawamori, Tsutomu Ashikari, Kiyomi Kayama, Takehiro Minami | 2002-04-16 |
| D430196 | Toner supplying cartridge for an image forming apparatus | Tsutomu Ashikari | 2000-08-29 |
| 5897244 | Image-forming machine capable of opening to permit ready access to internal components | Masahiko Miyazaki, Yoshifumi Okauchi, Naoyuki Ishida, Yukihiro Ito, Tetsuya Ichigotani +1 more | 1999-04-27 |
| 5878321 | Image-forming machine | Masahiko Miyazaki, Yoshifumi Okauchi, Naoyuki Ishida, Yukihiro Ito, Tetsuya Ichigotani +9 more | 1999-03-02 |
| 5867761 | Image forming machine with transfer roller | Naoyuki Ishida, Yoshifumi Okauchi, Yukihiro Ito, Masahiko Miyazaki, Tetsuya Ichigotani +1 more | 1999-02-02 |
| 5848330 | Imaging unit | Yoshifumi Okauchi, Yukihiro Ito, Naoyuki Ishida, Masahiko Miyazaki, Tetsuya Ichigotani +1 more | 1998-12-08 |
| 5812918 | Electrostatic latent image developing device with developing agent-limiting means | Masanobu Maeshima, Akinobu Nakahata, Takeshi Aoki, Hiroshi Inui | 1998-09-22 |
| 5758230 | Device for developing electrostatic latent image | Masanobu Maeshima, Akinobu Nakahata, Takeshi Aoki, Hiroshi Inui, Naoyuki Ishida | 1998-05-26 |
| 5752145 | Apparatus for feeding a developing agent through a device for developing an electrostatic latent image | Masanobu Maeshima, Akinobu Nakahata, Takeshi Aoki, Hiroshi Inui | 1998-05-12 |
| 5729803 | Device for developing electrostatic latent image which prevents solidification of developing agent by vibration | Masanobu Maeshima, Akinobu Nakahata, Takeshi Aoki, Hiroshi Inui | 1998-03-17 |