Issued Patents All Time
Showing 1–13 of 13 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 |
| 7072609 | Apparatus and method for image forming capable of performing an improved image fixing using a cooler | — | 2006-07-04 |
| 6501917 | Method and apparatus for image forming capable of effectively performing image density adjustment | — | 2002-12-31 |
| 6456814 | Image developing device and image forming apparatus preventing toner from adhering to developing sleeve | — | 2002-09-24 |
| 6339690 | Electrophotographic apparatus having screening member for recycling toner | — | 2002-01-15 |
| 6141509 | Toner content control device for an electrophotographic apparatus | — | 2000-10-31 |
| 5594539 | Paper guide device for image forming apparatus | Jun'ichi Murano, Takaya Muraishi, Hiroshi Tanabe, Kazuhiro Nishido, Ichiro Komuro | 1997-01-14 |
| 5500720 | Bias application control device for image forming apparatus using reverse development | — | 1996-03-19 |
| 5038175 | Image density control method | Norimasa Sohmiya, Yasushi Koichi | 1991-08-06 |
| 5006896 | Image density control method for an image forming apparatus | Yasushi Koichi, Norimasa Sohmiya | 1991-04-09 |
| 4962394 | Toner density control device for an image recorder | Norimasa Sohmiya, Yasushi Koichi | 1990-10-09 |
| 4772918 | Current-controlled image transfer | Mitsuo Hasebe | 1988-09-20 |