Issued Patents All Time
Showing 25 most recent of 44 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11562774 | Semiconductor device having a memory and method of controlling the same between operation modes | Takayoshi Shiraishi | 2023-01-24 |
| D686735 | Medical patch | Mitsutoshi Tsuruta, Kentaro Ishimatsu, Kiyotaka Takada, Yukiko Sueyoshi | 2013-07-23 |
| D618810 | Medical patch | Hiroyuki Kurematsu | 2010-06-29 |
| 6347211 | Fixing apparatus preventing leakage of electric current from inner surface of fixing roller | Hideo Nanataki, Yasumasa Ohtsuka, Takayasu Yuminamochi, Akihiko Takeuchi, Hiroto Hasegawa | 2002-02-12 |
| 6031215 | Image heating device using induction heating for image heating | Hideo Nanataki, Atsuyoshi Abe, Tetsuya Sano | 2000-02-29 |
| 6005594 | Fixing apparatus having a fixing roller with a non-adhesive surface layer | Hideo Nanataki, Yasumasa Ohtsuka, Takayasu Yuminamochi, Akihiko Takeuchi, Hiroto Hasegawa | 1999-12-21 |
| 5983107 | Mobile radio communications system | Masato Hayashi, Mikiya Namura, Tsutomu Kusaki | 1999-11-09 |
| 5970299 | Image heating apparatus | Tetsuya Sano, Hideo Nanataki, Atsuyoshi Abe | 1999-10-19 |
| 5940668 | Image forming apparatus with voltage polarity switching means | Kimio Nakahata, Akihiko Takeuchi, Hideo Nanataki, Kazuaki Ono | 1999-08-17 |
| 5918096 | Image transfer apparatus | Tetsuya Sano, Hideo Nanataki, Atsuyoshi Abe | 1999-06-29 |
| 5850245 | Page printer | Masahiro Goto, Yoji Serizawa, Toshio Miyamoto, Yuko Ohkama, Saturo Izawa +1 more | 1998-12-15 |
| 5732314 | Image forming apparatus comprising image bearing member, intermediate image transfer member and secondary image transfer member for facilitating transfer of developed image from intermediate image transfer member to transfer material | Shinichi Tsukida, Masahiro Goto, Toshio Miyamoto, Yuko Ohkama, Satoru Izawa +1 more | 1998-03-24 |
| 5715498 | Color image forming apparatus and method for forming a color image corrected for aberration in registration of image stations for each color | Akihiko Takeuchi, Toshio Miyamoto, Kazuaki Ono | 1998-02-03 |
| 5659840 | Developing method using developing electric field having back-transfer, transfer and rest steps | Toshio Miyamoto, Masahiro Goto, Yozo Hotta | 1997-08-19 |
| 5659857 | Image forming method | Masuo Yamazaki, Katsuhiko Nishimura | 1997-08-19 |
| 5589924 | Electrophotographic image forming system | Hideyuki Yano, Akihiko Takeuchi, Hiroshi Sasame, Yasumasa Otsuka, Hiroto Hasegawa +2 more | 1996-12-31 |
| 5519475 | Image forming apparatus with peripheral speed difference between image bearing and transfer members | Toshio Miyamoto, Kazuaki Ono | 1996-05-21 |
| 5519471 | Developer carrying member utilizing oscillating bias having constant-voltage-DC component and constant-current AC component, and developing apparatus and image forming apparatus using same | Katsuhiko Nishimura, Kimio Nakahata, Toshio Miyamoto, Makoto Takeuchi | 1996-05-21 |
| 5493380 | Fixing device with means for limiting a distance between heating and pressing member | Tooru Saitou, Akio Nemoto, Jun Saito, Yuzo Isoda, Katsuhiko Nishimura | 1996-02-20 |
| 5450181 | Fixing device | Shinichi Tsukida, Masahiro Goto, Hiromichi Tsujii, Satoru Izawa | 1995-09-12 |
| 5438398 | Image forming apparatus with intermediate transfer member | Kimio Nakahata, Akihiko Takeuchi, Hideo Nanataki, Kazuaki Ono | 1995-08-01 |
| 5412455 | Charging device, image forming apparatus and detachably mountable process cartridge having a constant voltage power source feature | Kazuaki Ono, Akihiko Takeuchi, Hajime Motoyama, Toshio Miyamoto | 1995-05-02 |
| 5331385 | Fixing rotatable member having conductive parting layer and fixing apparatus using same | Yasumasa Ohtsuka, Akihiko Takeuchi, Hideo Nanataki | 1994-07-19 |
| 5321482 | Process cartridge and image forming apparatus including a lubricant provided on a cleaning member for cleaning an image bearing member | Hideyuki Yano, Akihiko Takeuchi, Hiroshi Sasame, Yasumasa Otsuka, Hiroto Hasegawa +2 more | 1994-06-14 |
| 5253022 | Image forming apparatus | Akihiko Takeuchi, Takayasu Yuminamochi, Hiroto Hasegawa, Yasumasa Ohtsuka, Hiroki Kisu | 1993-10-12 |