Issued Patents All Time
Showing 51–62 of 62 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6363226 | Electrophotographic image forming apparatus | — | 2002-03-26 |
| 6336012 | Developing device, process cartridge and electric energy supply part to developing roller | Shinya Noda, Yoshikazu Sasago, Teruhiko Sasaki, Takashi Akutsu, Ichiro Terada | 2002-01-01 |
| 6334035 | Developer container and cartridge | Daisuke Abe, Tadayuki Tsuda, Takao Nakagawa | 2001-12-25 |
| 6275668 | Developing device, process cartridge and electrical contact part | — | 2001-08-14 |
| 6131007 | Developing device, process cartridge and electrophotographic image forming apparatus | Seiji Yamaguchi, Atsushi Numagami, Minoru Sato | 2000-10-10 |
| 6101348 | Developing unit, process cartridge and electrophotographic image forming apparatus | Fumito Nonaka, Isao Ikemoto, Akira Higeta | 2000-08-08 |
| 6075957 | Process cartridge and electrophotographic image forming apparatus | Isao Ikemoto, Minoru Sato | 2000-06-13 |
| 5940658 | Toner frame and process cartridge | Akiyoshi Yokoi, Minoru Sato | 1999-08-17 |
| 5937237 | Seal member, toner container and process cartridge | Fumito Nonaka, Shinichi Sasaki, Isao Ikemoto | 1999-08-10 |
| 5930562 | Process cartridge and electrophotographic image forming apparatus with covered gear | Shinya Noda | 1999-07-27 |
| 5920753 | Process cartridge and electrophotographic image forming apparatus | Teruhiko Sasaki, Satoshi Kurihara, Atsushi Numagami | 1999-07-06 |
| 5911096 | Image forming apparatus on which a process cartridge is detachably mounted and a process cartridge detachably mountable to a main body of an image forming apparatus including a grip portion | Minoru Sato | 1999-06-08 |