Issued Patents All Time
Showing 51–61 of 61 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8463163 | Developing device and image forming apparatus having the same | — | 2013-06-11 |
| 8326191 | Developing device and image forming apparatus | — | 2012-12-04 |
| 8257868 | Molten salt composition and use thereof | Rika Hagiwara, Kazuhiko Matsumoto, Kenichiro Tamaki, Toshiyuki Nohira | 2012-09-04 |
| 8184035 | Insulated ultrafine powder and high dielectric constant resin composite material | Takahiro Matsumoto, Toshiaki Yamada, Hirotaka Tsuruya, Masahiro Fujiwara | 2012-05-22 |
| 8180264 | Image forming unit and image forming apparatus | Kentaro Hasegawa | 2012-05-15 |
| 7142804 | Toner, toner cartridge that holds the toner therein, and image forming apparatus into which the toner cartridge is attached | Hiroaki Sato, Katsuyuki Ito | 2006-11-28 |
| 7095427 | Image forming apparatus transfer unit with toner layer charge-to-thickness ratio | — | 2006-08-22 |
| 6875288 | Cleaning agent and cleaning method | Hideto Gotoh, Takayuki Niuya, Hiroyuki Mori, Hiroshi Matsunaga, Fukusaburo Ishihara +4 more | 2005-04-05 |
| 6828015 | Composite containing thin-film particles having carbon skeleton, method of reducing the thin-film particles, and process for the production of the composite | Masukazu Hirata, Kouji Takenaka, Ryu Iwasaki, Shigeo Horiuchi | 2004-12-07 |
| 6801740 | Developing device and electrophotographic apparatus | Katsuyuki Ito, Kentaro Hasegawa, Takanori Mimura | 2004-10-05 |
| 6514352 | Cleaning method using an oxidizing agent, chelating agent and fluorine compound | Hideto Gotoh, Takayuki Niuya, Hiroyuki Mori, Hiroshi Matsunaga, Fukusaburo Ishihara +4 more | 2003-02-04 |