Issued Patents All Time
Showing 51–75 of 77 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6980759 | Process cartridge and electrophotographic image forming apparatus | Kazuhiko Kanno, Tomonori Mori | 2005-12-27 |
| 6934485 | Process cartridge, electrophotographic image forming apparatus and fixing method of electrical contact part | Shigeo Miyabe, Hiroomi Matsuzaki, Akira Suzuki, Daisuke Abe | 2005-08-23 |
| 6931226 | Process cartridge remanufacturing method | Hiroomi Matsuzaki, Shigeo Miyabe, Akira Suzuki | 2005-08-16 |
| 6823155 | Process cartridge and image forming apparatus | Tadayuki Tsuda, Daisuke Abe | 2004-11-23 |
| 6795666 | Remanufacturing method for process cartridge | Shigeo Miyabe, Hiroomi Matsuzaki, Akira Suzuki | 2004-09-21 |
| 6760558 | Developing device having a cover with partition member | Tadayuki Tsuda, Daisuke Abe | 2004-07-06 |
| 6671474 | Developer container, process cartridge, and electrophotographic image forming apparatus | — | 2003-12-30 |
| 6636706 | Electrophotographic image forming apparatus | Daisuke Abe | 2003-10-21 |
| 6585848 | Method for attaching electrically conductive sheet to developer sealing member | Masatoshi Kato, Toshiaki Nagashima | 2003-07-01 |
| 6535699 | Developer container, developer amount detecting system, process cartridge, developing device, and image forming apparatus | Daisuke Abe, Tadayuki Tsuda | 2003-03-18 |
| 6512903 | Developer accommodating container, a developing device, a process cartridge, and an image forming apparatus whose developer-accommodating-container opening is sealed by a seal member | — | 2003-01-28 |
| 6473585 | Developer accommodating container, and developing device | Daisuke Abe | 2002-10-29 |
| 6301457 | Coupling member, process cartridge and image forming apparatus | Naoki Asano | 2001-10-09 |
| 6282389 | Electrophotographic photosensitive drum, process cartridge and electrophotographic image forming apparatus | Hiroomi Matsuzaki, Akira Suzuki | 2001-08-28 |
| 6266502 | Process cartridge with cleaning frame having reinforcing member | Hiroomi Matsuzaki, Tadayuki Tsuda, Akira Suzuki | 2001-07-24 |
| 6219504 | Process cartridge and image forming apparatus | Hiroomi Matsuzaki, Akira Suzuki | 2001-04-17 |
| 6208817 | Developing apparatus and method for assembling the same | Hiroomi Matsuzaki, Akira Suzuki | 2001-03-27 |
| 6205305 | Developing apparatus having welded-together accommodating and developing containers | Akira Suzuki, Hiroomi Matsuzaki | 2001-03-20 |
| 6178302 | Developer container seal, developer container, developing apparatus, process cartridge, and image forming apparatus | Toshiaki Nagashima, Teruhiko Sasaki, Toru Koizumi | 2001-01-23 |
| 6173140 | Coupling member, process cartridge and assembling method of process cartridge | Akira Suzuki, Hiroomi Matsuzaki, Shigeo Miyabe | 2001-01-09 |
| 6173145 | Developing apparatus with drive mechanism for developer bearing body | Tadayuki Tsuda, Hiroomi Matsuzaki, Akira Suzuki | 2001-01-09 |
| 6144815 | Developing device, process cartridge and electrophotographic image forming apparatus | Hiroomi Matsuzaki, Akira Suzuki | 2000-11-07 |
| 5966567 | Process cartridge and electrophotographic image forming apparatus | Hiroomi Matsuzaki, Shigeo Miyabe, Akira Suzuki | 1999-10-12 |
| 5943529 | Process cartridge and electrophotographic image forming apparatus | Shigeo Miyabe, Hiroomi Matsuzaki | 1999-08-24 |
| 5832343 | Toner supply method, toner accommodation container, process cartridge and electrophotographic image forming apparatus | Kazunori Kobayashi, Tadayuki Tsuda, Shinichi Sasaki, Isao Ikemoto, Toshiaki Nagashima +1 more | 1998-11-03 |