Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9244387 | Developer collecting device for suppressing decrease of developer collection rate and image forming apparatus | Kaori Harada | 2016-01-26 |
| 9169101 | Image forming apparatus | Tsuyoshi Koyanagi | 2015-10-27 |
| 9145274 | Sheet storage cassette and image forming apparatus including same | Masaki Sato | 2015-09-29 |
| 9134654 | Developer collection apparatus and image forming apparatus | Shuji Osaki | 2015-09-15 |
| 8820742 | Image forming apparatus | Tsuyoshi Koyanagi | 2014-09-02 |
| 6549740 | Image forming apparatus and fixing device therefor | Shinichi Uchida | 2003-04-15 |
| 5331379 | Image forming apparatus capable of changing the surface potential of a photosensitive member | Yoshiyuki Ishizuka, Naoki Motobayashi, Takehiko Okada | 1994-07-19 |
| 5030992 | Device for removing electrostatic charge in image forming apparatus | Masami Shibahara | 1991-07-09 |