Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9086674 | Waste toner collector and image forming apparatus | — | 2015-07-21 |
| 7664420 | Image forming apparatus having monochrome and color print modes and a plurality of system speeds | Taiichi Oominami, Seiji Shibata, Tomiko Imoto, Hiroyuki Maeda, Yuichi Yamamoto | 2010-02-16 |
| D581974 | Developing apparatus for printer | Yuichi Yamamoto | 2008-12-02 |
| D565646 | Toner cartridge | Yuichi Yamamoto | 2008-04-01 |
| D553183 | Developing device with a toner container | Takeshi Hashimoto, Tatsuya Tsujimura | 2007-10-16 |