Issued Patents All Time
Showing 26–50 of 51 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5995793 | Image forming apparatus and method for manufacturing intermediary transfer belt for image forming apparatus | Naoki Enomoto, Akihiko Takeuchi, Tatsuya Kobayashi | 1999-11-30 |
| 5953572 | Image forming apparatus having intermediary transfer member | Akihiko Takeuchi, Tatsuya Kobayashi, Naoki Enomoto, Takaaki Tsuruya | 1999-09-14 |
| 5946538 | Image forming apparatus | Akihiko Takeuchi, Tatsuya Kobayashi, Naoki Enomoto, Takaaki Tsuruya, Kazuhiro Funatani | 1999-08-31 |
| 5899610 | Image bearing belt and image forming apparatus using same | Naoki Enomoto, Akihiko Takeuchi, Takaaki Tsuruya | 1999-05-04 |
| 5809387 | Image forming apparatus employing an intermediary transfer member | Akihiko Takeuchi, Naoki Enomoto, Takaaki Tsuruya | 1998-09-15 |
| 5761571 | Control device for an attraction roller | Takehiko Suzuki, Toshihiko Ochiai | 1998-06-02 |
| 5715506 | Image forming apparatus comprising a mechanism for positioning a rotatable member and a transfer drum | Akihiko Takeuchi, Toshihiko Ochiai, Motoi Kato, Akira Ito, Nobuaki Kabeya +2 more | 1998-02-03 |
| 5678130 | Developing apparatus including a control function for applied periodic developing bias field | Naoki Enomoto, Haruo Fujii, Hiroshi Sasame, Motoi Katoh, Tatsuya Kobayashi +5 more | 1997-10-14 |
| 5678151 | Toner adhesion preventing mechanism for image forming apparatus | Akihiko Takeuchi, Toshihiko Ochiai, Motoi Kato, Takehiko Suzuki | 1997-10-14 |
| 5608505 | Image forming apparatus | Akihiko Takeuchi, Toshihiko Ochiai, Motoi Katoh, Takehiko Suzuki | 1997-03-04 |
| 5600423 | Image forming apparatus including a transfer medium bearing member having a sheet member for bearing a transfer medium thereon | Akihiko Takeuchi, Toshihiko Ochiai, Motoi Kato, Akira Ito, Nobuaki Kabeya +2 more | 1997-02-04 |
| 5596393 | Image forming apparatus having charging member supplied with oscillating voltage | Tatsuya Kobayashi, Hiroshi Sasame, Tetsuya Kobayashi | 1997-01-21 |
| 5559591 | Image forming apparatus with function of requesting exchange of fixing unit | Motoi Kato, Haruo Fujii, Toshifumi Moritani, Tatsuya Kobayashi, Tetsuya Kobayashi +3 more | 1996-09-24 |
| 5543904 | Fixating device | Motoi Kato, Akihiko Takeuchi, Toshihiko Ochiai, Nobuaki Kabeya, Takehiko Suzuki +1 more | 1996-08-06 |
| 5539507 | Image forming apparatus having transfer material bearing member | Hiroshi Sasame, Tatsuya Kobayashi, Takehiko Suzuki | 1996-07-23 |
| 5523829 | Image forming apparatus having recording material carrying member | Haruo Fujii, Motoi Katoh, Tatsuya Kobayashi, Tetsuya Kobayashi, Akira Ito +3 more | 1996-06-04 |
| 5517281 | Image forming apparatus featuring a plurality or relatively moveable casings | Shinkichi Takahashi, Takao Aoki, Eihiro Sakaki, Fumihiro Ueno | 1996-05-14 |
| 5508796 | Image forming apparatus with select relation among distances in recording material conveyance path | Hiroshi Sasame, Takao Aoki, Haruo Fujii, Toshihiko Ochiai, Motoi Kato +7 more | 1996-04-16 |
| 5428426 | Image forming system | Mitsugu Inomata, Hisayoshi Kojima, Toshiki Nagase | 1995-06-27 |
| 5402218 | System for reducing a surface potential of an image bearing member in an image forming apparatus | Tatsuya Kobayashi, Tetsuya Kobayashi | 1995-03-28 |
| 5390012 | Image forming apparatus having transfer material carrying member | Haruo Fujii, Toshihiko Ochiai | 1995-02-14 |
| 5307127 | Developing apparatus using one component toner with improved flowability | Tetsuya Kobayashi, Haruo Fujii, Motoi Katoh, Tatsuya Kobayashi, Naoki Enomoto +2 more | 1994-04-26 |
| 5287163 | Overlaid image forming apparatus with coordinated transfer bias and attraction bias voltage sources | Shinkichi Takahashi, Tatsuya Kobayashi | 1994-02-15 |
| 5250994 | Image forming apparatus having transfer member supporting member | Akira Ito, Mitsugu Inomata, Yasuo Ito, Hisayoshi Kojima, Tatsuya Kobayashi | 1993-10-05 |
| 5249023 | Image forming apparatus having electrostatic attraction member | Tatsuya Kobayashi | 1993-09-28 |