Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7912409 | Toner cartridge | Yasufumi Kayahara, Takuji Matsumoto, Chiharu Nakajima, Mutsumi Kikuchi, Toyohiko Awano +1 more | 2011-03-22 |
| 7647010 | Toner cartridge and image forming apparatus | Chiharu Nakajima, Takuji Matsumoto, Toyohiko Awano, Shigeki Nishimura, Mutsumi Kikuchi +1 more | 2010-01-12 |
| 7643777 | Toner cartridge | Takuji Matsumoto, Chiharu Nakajima | 2010-01-05 |
| 7529511 | Toner cartridge | Yasufumi Kayahara, Takuji Matsumoto, Chiharu Nakajima, Mutsumi Kikuchi, Toyohiko Awano +1 more | 2009-05-05 |
| D549274 | Toner cartridge | Chiharu Nakajima | 2007-08-21 |
| D548276 | Toner cartridge | Chiharu Nakajima | 2007-08-07 |
| D548277 | Toner cartridge | Chiharu Nakajima | 2007-08-07 |
| 7155148 | Image forming apparatus | Shigeki Nishimura, Norio Irie, Masayuki Nishimura, Takuji Matsumoto, Naomasa Okimura | 2006-12-26 |
| 6785494 | Image formation apparatus and charger used therewith | Kazuya Yamanoi, Shigeo Ohno, Shigeki Nishimura, Yasuyuki Tsutsumi, Ryuichi Yamamoto +5 more | 2004-08-31 |
| 6738590 | Image forming apparatus with detachable image forming unit assembly | Naomasa Okimura, Takeshi Okoshi | 2004-05-18 |
| 6594461 | Charger and image formation apparatus using the charger | Shigeo Ohno, Ryuichi Yamamoto, Yusuke Kitagawa, Kazuya Yamanoi, Tadashi Kiyama +5 more | 2003-07-15 |
| D458299 | Image forming apparatus | Takeshi Okoshi | 2002-06-04 |
| 6069646 | Image forming apparatus providing frame support for an optical scanning unit | Kouichi Okabe, Yasuhide Saito | 2000-05-30 |
| 5287143 | Image forming apparatus with moveable cover | Shoji HIROTA | 1994-02-15 |
| 5268724 | Transfer apparatus providing improved transfer material guidance along a feed path to an electrophotographic image carrier | Yukinori Sezaki | 1993-12-07 |
| 5267001 | Image forming cartridge | Makoto Kanai | 1993-11-30 |