Issued Patents All Time
Showing 25 most recent of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6760051 | Image forming apparatus with switching elements | Fumihiko Arishima, Yujiro Ando, Hiroki Kisu, Shigeki Kondo, Masaaki Matsushima | 2004-07-06 |
| 6101286 | Image processing apparatus and method having improved color-boundary mixing | Satoshi Shimizu, Hiroshi Sasame, Tatsuya Kobayashi, Takashi Kawana, Tetsuya Kobayashi +5 more | 2000-08-08 |
| 5974281 | Image forming apparatus using intermediate transfer member | Koichi Hiroshima, Hideyuki Yano | 1999-10-26 |
| 5873010 | Image forming apparatus for performing correction control, based on density of toner image | Naoki Enomoto, Takao Aoki, Hiroshi Sasame, Tatsuhiko Hayakawa, Tatsuya Kobayashi +4 more | 1999-02-16 |
| 5678130 | Developing apparatus including a control function for applied periodic developing bias field | Naoki Enomoto, Hiroshi Sasame, Motoi Katoh, Tatsuya Kobayashi, Masao Nakano +5 more | 1997-10-14 |
| 5666588 | Image forming apparatus for performing image density control | Akihiko Uchiyama, Hiroshi Sasame, Tatsuya Kobayashi, Tetsuya Kobayashi, Naoki Enomoto +3 more | 1997-09-09 |
| 5666597 | Image forming apparatus with delayed discharge by discharge means | Hiroshi Sasame, Tatsuhiko Hayakawa, Tatsuya Kobayashi, Tetsuya Kobayashi, Naoki Enomoto +3 more | 1997-09-09 |
| 5559591 | Image forming apparatus with function of requesting exchange of fixing unit | Motoi Kato, Toshifumi Moritani, Tatsuya Kobayashi, Tetsuya Kobayashi, Toshiaki Miyashiro +3 more | 1996-09-24 |
| 5548381 | Developing apparatus forming alternating electric field between image bearing member and toner carrying member | Yoshiro Saito, Hiroshi Sasame, Tatsuhiko Hayakawa, Tatsuya Kobayashi, Tetsuya Kobayashi +3 more | 1996-08-20 |
| 5543900 | Image forming apparatus which reduces toner fusion on an image bearing member | Youichirou Maebashi, Hiroshi Sasame, Hiroaki Kawakami, Tatsuya Kobayashi, Tetsuya Kobayashi +3 more | 1996-08-06 |
| 5523829 | Image forming apparatus having recording material carrying member | Toshiaki Miyashiro, Motoi Katoh, Tatsuya Kobayashi, Tetsuya Kobayashi, Akira Ito +3 more | 1996-06-04 |
| 5508796 | Image forming apparatus with select relation among distances in recording material conveyance path | Hiroshi Sasame, Takao Aoki, Toshihiko Ochiai, Motoi Kato, Tatsuya Kobayashi +7 more | 1996-04-16 |
| 5471284 | Image forming apparatus having toner depletion detection feature | Tatsuya Kobayashi, Nobuhiro Imai, Hisayoshi Kojima, Masao Umezawa, Hideki Tada +4 more | 1995-11-28 |
| 5414493 | Image forming apparatus | Tatsuya Kobayashi, Nobuhiro Imai, Hisayoshi Kojima, Masao Umezawa, Hideki Tada +4 more | 1995-05-09 |
| 5390012 | Image forming apparatus having transfer material carrying member | Toshiaki Miyashiro, Toshihiko Ochiai | 1995-02-14 |
| 5313064 | Solid-liquid reversible scintillator and method of using the same | — | 1994-05-17 |
| 5307127 | Developing apparatus using one component toner with improved flowability | Tetsuya Kobayashi, Motoi Katoh, Tatsuya Kobayashi, Toshiaki Miyashiro, Naoki Enomoto +2 more | 1994-04-26 |
| 5229821 | Process cartridge with toner depletion detection feature and image forming apparatus using the same | — | 1993-07-20 |
| 5155364 | Solid-liquid reversible scintillator and method of using the same | — | 1992-10-13 |
| 5032852 | Image forming apparatus | Tatsuya Kobayashi, Junichi Kato | 1991-07-16 |
| 4766468 | Developing method and apparatus for a photocopier | Nagao Hosono, Yujiro Ando, Kimio Nakahata | 1988-08-23 |
| 4739348 | Recording head assembly using magnetic toner and image forming apparatus using the same | Yujiro Ando, Takashi Saito | 1988-04-19 |
| 4682880 | Multicolor image recording method and device utilizing a single image transfer to the recording material | Yutaka Inaba, Yujiro Ando | 1987-07-28 |
| 4658275 | Image forming apparatus | Yujiro Ando | 1987-04-14 |
| 4590496 | Image recording apparatus | Tsutomu Toyono, Yuji Sakemi | 1986-05-20 |