Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9060079 | Image forming apparatus | — | 2015-06-16 |
| 8818248 | Image forming apparatus | Takashi Nara, Tadashi Matsudaira, Youbao Peng, Satoshi Ogata | 2014-08-26 |
| 8463159 | Image forming unit and image forming apparatus including elastically deformable charging roller | Hidekazu Nakagami, Yoshinori Tanaka, Yasuhiro Suzuki, Naoki Matsui | 2013-06-11 |
| 8285160 | Image forming apparatus utilizing a concenteration ratio of colors | Takayuki Ito, Michiya Takeda, Atsuhiko Shimoyama | 2012-10-09 |
| 8115796 | Beltless tandem-type image forming apparatus | Syuichi Katogi, Shoichi Yoshikawa, Takayuki Ito, Masashi Kawai, Noboru Oomoto | 2012-02-14 |
| 8103200 | Image forming apparatus | Takayuki Ito, Shoichi Yoshikawa, Noboru Oomoto | 2012-01-24 |
| 7907867 | Creep resistant cleaning device and image forming device having the same | Shoichi Yoshikawa, Toshiyuki Sakai, Hiroshi Ibaraki, Takayuki Ito | 2011-03-15 |
| 7835659 | Image forming apparatus capable of reducing noise energy radiated outside the apparatus, method of designing frame, and computer readable medium | Shoichi Yoshikawa, Atsuhiko Shimoyama, Takayuki Ito | 2010-11-16 |
| 6345763 | Image reading apparatus for reading a bookform document placed on a document table in face-up state | Shinya Matsuda, Hiroshi Nagashima | 2002-02-12 |
| 5995245 | Image reader | — | 1999-11-30 |
| 5614991 | Document placement mechanism and image reading device for books | Hiroshi Nagashima | 1997-03-25 |
| 5459548 | Information forming apparatus with mechanism for unsealing and sealing a cover of recording material | Naoyuki Matsuda, Yukiyoshi Yamakoshi, Hajime Takei, Hiroshi Tomita, Richard R. Lemberger +2 more | 1995-10-17 |
| 5228678 | Disposable sheet cassette and image forming apparatus designed to employ same | Naoyuki Matsuda, Yukiyoshi Yamakoshi, Hajime Takei, Hiroshi Tomita | 1993-07-20 |
| 5181707 | Sheet handling apparatus provided with a sheet sucking unit | Hajime Takei, Yukiyoshi Yamakoshi, Naoyuki Matsuda, Hiroshi Tomita, Homare Sano | 1993-01-26 |
| 5127646 | Image forming apparatus provided with a sheet magazine | Naoyuki Matsuda, Yukiyoshi Yamakoshi, Hiroshi Tomita, Hajime Takei, Homare Sano | 1992-07-07 |
| 5097273 | Recording medium detecting apparatus | Hiroshi Tomita | 1992-03-17 |
| 5090677 | Sheet feed arrangement | Yukiyoshi Yamakoshi, Hajime Takei, Naoyuki Matsuda, Hiroshi Tomita | 1992-02-25 |
| 5051775 | Image forming apparatus provided with a device for covering and uncovering a sheet magazine | Yukiyoshi Yamakoshi, Hiroshi Tomita, Hajime Takei, Naoyuki Matsuda, Homare Sano | 1991-09-24 |
| 5049924 | Image forming apparatus | Yukiyoshi Yamakoshi, Hiroshi Tomita, Hajime Takei, Naoyuki Matsuda, Homare Sano | 1991-09-17 |