Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8135311 | Developing unit having effective developer transportability, and process cartridge and image forming apparatus using the same | Kiyonori Tsuda, Satoru Yoshida | 2012-03-13 |
| 7899368 | Development device, and image forming apparatus and process cartridge using the development device | Satoru Yoshida, Kiyonori Tsuda | 2011-03-01 |
| 7826776 | Development apparatus and image forming apparatus employing the same | Kiyonori Tsuda, Satoru Yoshida | 2010-11-02 |
| 7801466 | Developing device and image forming apparatus | — | 2010-09-21 |
| 7796921 | Image forming apparatus capable of reducing an occurrence of developer depletion in a development unit | Kiyonori Tsuda, Satoru Yoshida | 2010-09-14 |
| 7725059 | Image developer providing improved developer dispersibility and image forming apparatus containing the same | — | 2010-05-25 |
| 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 |
| 6694108 | System for managing temperature in an image forming apparatus by controlling printing speed | Ryo Hanashi | 2004-02-17 |
| 6330413 | Image forming apparatus having an LED charge erasing device | Akira Yamamoto, Atsushi Hosoi | 2001-12-11 |