Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7440718 | Developing apparatus featuring image defect supression | Kazunari Hagiwara, Shuji Moriya, Naoto Kichijima, Yasushi Shimizu, Koichi Okuda | 2008-10-21 |
| 7383003 | Developing apparatus for preventing ghost images and uneven image density | Naoto Kichijima, Koichi Okuda, Yasushi Shimizu, Shuji Moriya, Kazunari Hagiwara | 2008-06-03 |
| 7379693 | Developing apparatus | Yasushi Shimizu, Shuji Moriya, Kazunari Hagiwara, Naoto Kichijima, Koichi Okuda | 2008-05-27 |
| 7251441 | Developing apparatus including magnetic field generating means, for use with a developer which includes a magnetic toner component | Kazunari Hagiwara, Kouichi Okuda, Yasushi Shimizu, Hikaru Osada, Shuji Moriya | 2007-07-31 |
| 7233758 | Developing apparatus featuring a developer carrying member with an elastic surface layer | Hikaru Osada, Kouichi Okuda, Yasushi Shimizu, Yasunori Chigono, Shuji Moriya +1 more | 2007-06-19 |
| 7010256 | Image heating apparatus having recording medium conveying nip nonuniform in pressure distribution | Masatake Usui, Hideyuki Yano, Katsuhiko Oba, Shunichi Ebihara | 2006-03-07 |
| 6785506 | Fixing member having layers with radiation-transmitting and radiation-absorbing properties, and a fixing assembly including such a fixing member | Motoi Kato | 2004-08-31 |
| 6229980 | Developing apparatus featuring first and second developer chambers and guide member for directing stripped-off developer | Yukihiro Ozeki, Katsuhiro Sakaizawa, Takeshi Yamamoto | 2001-05-08 |
| 5734390 | Image forming apparatus | Katsuhiro Sakaizawa, Noboru Koumura, Yasushi Sato, Yukihide Ushio, Izumi Narita +5 more | 1998-03-31 |
| 5729785 | Image forming apparatus with ink jet and electrophotographic image forming means | Katsuhiro Sakaizawa, Yasushi Sato, Yukihiro Ohzeki, Yasunori Chigono | 1998-03-17 |
| 5570166 | Developing apparatus that applies voltage to developer layer thickness regulating member | Yukihiro Ohzeki, Masaki Ojima, Katsuhiro Sakaizawa | 1996-10-29 |
| 5561500 | Image forming apparatus with plural types of image forming devices | Yukihiro Ohzeki, Katsuhiro Sakaizawa | 1996-10-01 |