Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8227160 | Toner for electrophotography | Yasuhiro Hidaka, Yasuki Ohtawa | 2012-07-24 |
| 7235337 | Toner for electrostatic image development | Koji Kameyama, Nobumichi Kamiyoshi, Hiroyuki Kawaji, Masahito Yamazaki | 2007-06-26 |
| 6377766 | Electrophotographic apparatus having a printing density controller for dropout and non-dropout color | Hiroshi Ueno, Koutarou Yamada, Katuhiro Shinohara, Hisashi Nakajima | 2002-04-23 |
| 5579091 | Developing unit for electro-photographic apparatus | Koutarou Yamada, Youji Hirose, Hiroshi Ueno, Isao Watanabe, Yoshio Ogura +2 more | 1996-11-26 |