Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7272354 | Cleaning unit and image forming apparatus having multiple cleaning blades | Eisaku Murakami, Masami Tomita, Masanori Kawasumi, Toshio Koike, Naohiro Kumagai +11 more | 2007-09-18 |
| 7110696 | Cleaning unit, process cartridge, and image forming apparatus | Eisaku Murakami, Masami Tomita, Masanori Kawasumi, Toshio Koike, Naohiro Kumagai +11 more | 2006-09-19 |
| 6687474 | Developing apparatus, image formation apparatus, and process cartridge | Masahiko Yamada, Hiroyuki Nagashima, Tokuya Ohjimi | 2004-02-03 |
| 6507718 | Method and apparatus for reducing adhesion of carrier to image bearing member | Tokuya Ohjimi | 2003-01-14 |