Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8086141 | Electric charging apparatus and image forming apparatus using the same | Yukimichi Someya, Eiichi Ohta, Naomi Sugimoto, Takuro Sekiya, Yasuo Katano +2 more | 2011-12-27 |
| 7749638 | Manufacturing method of lamination body of electrolytic body and particle, lamination body of electrolytic body and particle, electrochemical element, fuel battery, and portable machine | Okitoshi Kimura, Aino Hasegawa | 2010-07-06 |
| 7728503 | Electron emission element, charging device, process cartridge, and image forming apparatus | Eiichi Ohta, Takuro Sekiya, Naomi Sugimoto, Yukimichi Someya, Yasuo Katano +2 more | 2010-06-01 |
| 6493529 | Charging device with walls surrounding the electrodes which reduce ozone emissions | Kazuhiko Umemura, Tomoaki Sugawara, Tatsuya Sato, Hiroshi Kondo | 2002-12-10 |