Issued Patents All Time
Showing 76–82 of 82 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6603939 | Developing apparatus, process cartridge, connecting method between developing frame and developer frame, and flexible seal | Tadayuki Tsuda, Shigeo Miyabe, Hiroaki Sakai | 2003-08-05 |
| 6549736 | Process cartridge, engaging member therefor and method for mounting developing roller and magnet | Shigeo Miyabe, Hiroomi Matsuzaki, Akira Suzuki | 2003-04-15 |
| 6542706 | Process cartridge and electrophotographic image forming apparatus | Tadayuki Tsuda, Shinichi Sasaki, Shigeo Miyabe | 2003-04-01 |
| 6519431 | Process cartridge, assembling method therefor and electrophotographic image forming apparatus | Tadayuki Tsuda, Shigeo Miyabe | 2003-02-11 |
| 6473578 | Developing apparatus | Shigeo Miyabe, Tadayuki Tsuda | 2002-10-29 |
| 6424811 | Electrophotographic image forming apparatus and process cartridge detachably mounted thereto having first and second drive force transmitting means | Tadayuki Tsuda | 2002-07-23 |
| 6151465 | Electrical contact device for developing roller | Tadayuki Tsuda, Shinichi Sasaki | 2000-11-21 |