Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9040217 | Carrier, two-component developer using the same, and image-forming apparatus using said developer | Kazuki Takatsuka, Tatsuo Imafuku, Takeshi Satoh, Masaki Ueji | 2015-05-26 |
| 8531719 | Image forming apparatus, image forming system, storage medium, and control method including recommendation information writing | Kazuki Takatsuka, Takeshi Kato, Toru Nishikawa, Junichi Saito, Hitoshi Nagahama | 2013-09-10 |
| 8126340 | Developer recovering device and image forming apparatus having the same | Hitoshi Nagahama | 2012-02-28 |
| 8043781 | Toner, two-component developer and image formation device | Tatsuo Imafuku, Takeshi Satoh | 2011-10-25 |
| 7514193 | Developing toner for electrostatic latent images, imaging forming method and image forming apparatus | Hitoshi Nagahama, Tatsuo Imafuku, Tenjiku Eiji, Takeshi Satoh, Ohkawa Takeshi | 2009-04-07 |
| 7449274 | Toner for electrostatic image development and image forming method using the same | Tatsuo Imafuku, Eiji Tenjiku, Takeshi Satoh, Takeshi Ohkawa, Akiko Tsujimoto | 2008-11-11 |
| 7070897 | Developer for use in electrophotography and method and apparatus for image formation | Tatsuo Imafuku, Junichi Saito | 2006-07-04 |
| 6864031 | Electrophotographic developer and image-forming method using the developer | Toshihisa Ishida, Tatsuo Imafuku, Junichi Saito | 2005-03-08 |
| 6317576 | Electrophotographic developing unit | Toshihisa Ishida, Hitoshi Nagahama, Katsuaki Sumida, Keizo Kitamura | 2001-11-13 |
| 6110635 | Toner for electrophotography and a production method thereof | Yoshinori Urata, Tatsuo Imafuku, Toshihisa Ishida, Tadashi Nakamura, Yoshiaki Akazawa +2 more | 2000-08-29 |
| 6066423 | Toner for electrophotography | Tatsuo Imafuku, Toshihisa Ishida, Yoshinori Urata, Nobuyasu Honda | 2000-05-23 |
| 6004713 | Toner, Developer, and process for producing the same | Yoshinori Urata, Hitoshi Nagahama, Yasuharu Morinishi, Satoshi Ogawa, Toshihisa Ishida +1 more | 1999-12-21 |
| 5983055 | Photosensitive element for electrophotography | Syouichi Fujita, Kouichi Takenouchi, Teruhiko Noguchi, Yukihisa Imaue, Tatsuya Itou +3 more | 1999-11-09 |