Issued Patents All Time
Showing 26–50 of 73 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5970280 | Image forming apparatus having a developing bias control unit | Hirokatsu Suzuki | 1999-10-19 |
| RE36304 | Multiplex image reproducing method | Satoshi Haneda, Seiichiro Hiratsuka | 1999-09-14 |
| 5937228 | Image forming apparatus | Masahiko Shakuto, Nobutaka Takeuchi, Hirokatsu Suzuki | 1999-08-10 |
| 5915155 | Toner replenishing and developer replacing device for a developing unit of an image forming apparatus | Kiyotaka Ohta, Tsukuru Kai, Nobuto Yokokawa, Kiyonori Tsuda, Satoshi Hatori | 1999-06-22 |
| 5740494 | Configured to enhance toner collecting efficiency and toner redepositing efficiency | Osamu Endo, Kei Yasutomi, Masako Yoshii, Hidetoshi Yano, Yasushi Nakazato +1 more | 1998-04-14 |
| 5619316 | Image forming apparatus | Hidetoshi Yano, Tsukuru Kai, Yoshiko Ishii, Nobuto Yokokawa, Masako Suzuki +1 more | 1997-04-08 |
| 5606408 | Image forming apparatus and cleaning device therefor | Hidetoshi Yano, Tsukuru Kai, Osamu Endo, Yoshiko Ishii, Nobuto Yokokawa +5 more | 1997-02-25 |
| 5508520 | Method and apparatus for discriminating printings | Morio Onoe, Tadashi Saito, Takeshi Takemoto, Takashi Kimura | 1996-04-16 |
| 5337075 | Image forming apparatus capable of readily changing the pixel density of an image | Tomoko Takahashi | 1994-08-09 |
| 5309177 | Image recording apparatus | Tomoko Ogawa | 1994-05-03 |
| 5162821 | Color image forming apparatus | Masakazu Fukuchi, Satoshi Haneda, Kunihisa Yoshino, Yoshiyuki Ichihara | 1992-11-10 |
| 5157483 | Multicolor image forming method and apparatus | Seiichiro Hiratsuka | 1992-10-20 |
| 5146270 | Color image forming apparatus having interchangeable image forming process cartridges | Shunji Matsuo, Sizuo Morita, Satoshi Haneda, Masakazu Fukuchi | 1992-09-08 |
| 5124747 | Color copy machine with detachable process cartridge | Satoshi Haneda, Masakazu Fukuchi, Shunji Matsuo, Shizuo Morita | 1992-06-23 |
| 5107304 | Removable cartridge for a color image forming apparatus | Satoshi Haneda, Masakuzu Fukuchi, Shunji Matsuo, Shizuo Morita | 1992-04-21 |
| 5103303 | Multicolor imaging forming apparatus | Satoshi Haneda, Masakazu Fukuchi | 1992-04-07 |
| 5091789 | Multicolor image forming apparatus | Satoshi Haneda, Masakazu Fukuchi | 1992-02-25 |
| 5061966 | Method of cleaning an image retainer | Satoshi Haneda, Seiichiro Hiratsuka, Tadao Kishimoto, Toshifumi Isobe, Hiroyuki Maruyama +1 more | 1991-10-29 |
| 5051760 | Direct image recording apparatus using toner | Makoto Obu, Hidetoshi Yano, Shinsuke Kikui, Junichi Terai, Tomoko Ogawa | 1991-09-24 |
| 5047801 | Color image forming apparatus having the developing means and cleaning means formed as a detachable unit | Satoshi Haneda, Masakazu Fukuchi, Shunji Matsuo, Shizuo Morita | 1991-09-10 |
| 5036367 | Color image forming apparatus | Satoshi Haneda, Kunihisa Yoshino | 1991-07-30 |
| 5024181 | Method for the development of an electrostatic latent image | Akihiko Tamura, Masahiko Itaya, Hiroshi Fuma, Shinobu Soma | 1991-06-18 |
| 4998145 | Image forming apparatus having a first mode for forming a multicolor image of restricted length and a second mode for forming a monocolor image of unrestricted length | Satoshi Haneda, Masakazu Fukuchi, Shunji Matsuo, Shizuo Morita | 1991-03-05 |
| 4996566 | Multicolor image forming apparatus with separately removable and insertable assembly units | Shizuo Morita, Shunji Matsuo, Satoshi Haneda, Masakazu Fukuchi | 1991-02-26 |
| 4994853 | Apparatus for recording color images having interchangeable process cartridges and cartridge information on IC cards | Masakazu Fukuchi, Satoshi Haneda, Shunji Matsuo, Shizuo Morita | 1991-02-19 |