Issued Patents All Time
Showing 25 most recent of 49 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8233828 | Developing apparatus, imaging unit, and image forming apparatus including developer mixing container with auxiliary member to circulate developer | Naoya Iwata | 2012-07-31 |
| 7851118 | Image forming method, image forming apparatus and organic photoreceptor | Akihiko Itami, Masao Asano, Hiroshi Yamazaki | 2010-12-14 |
| 7846626 | Image forming method and image forming apparatus | Akihiko Itami, Masao Asano, Hiroshi Yamazaki | 2010-12-07 |
| 7477866 | Image forming method and image forming apparatus | Akihiko Itami | 2009-01-13 |
| 7459256 | Image forming method and image forming apparatus | Akihiko Itami, Shigeaki Tokutake | 2008-12-02 |
| 7251440 | Development apparatus and image formation apparatus | Hiroshi Akita, Seiko Itagaki | 2007-07-31 |
| 6985685 | Developing device and image forming apparatus | Seiko Itagaki, Seiji Yamaguchi, Toru Komatsu, Hiroshi Akita | 2006-01-10 |
| 6832058 | Image forming apparatus including a maximum charge quantity of toner particles forming useless toner | Hiroshi Akita, Takenobu Kimura, Yotaro Sato | 2004-12-14 |
| 6798999 | Image forming apparatus | Seiko Itagaki, Hiroshi Akita | 2004-09-28 |
| 6737209 | Color image forming method using flattened toner | Yotaro Sato, Satoshi Haneda | 2004-05-18 |
| 6721526 | Image forming apparatus with improved developing device | Hiroshi Akita, Takenobu Kimura, Yotaro Sato | 2004-04-13 |
| 6393230 | Fixing device and image forming apparatus therewith | Satoshi Haneda, Hiroyuki Tokimatsu | 2002-05-21 |
| 6360063 | Image forming apparatus wherein writing of an image is conducted before feeding of a transfer material is started | Satoshi Haneda, Yotaro Sato, Hisayoshi Nagase | 2002-03-19 |
| 6347200 | Duplex image forming apparatus | Yotaro Sato, Hisayoshi Nagase, Satoshi Haneda | 2002-02-12 |
| 6308039 | Apparatus for fixing toner images on a transfer material | Satoshi Haneda, Hiroyuki Tokimatsu, Toshihide Miura, Masahiro Onodera | 2001-10-23 |
| 6204932 | Image forming apparatus | Satoshi Haneda, Kiyoshi Kimura | 2001-03-20 |
| 6205301 | Two-sided image forming apparatus | Yotaro Sato, Hisayoshi Nagase, Satoshi Haneda | 2001-03-20 |
| 6157805 | Fixing apparatus | Satoshi Haneda, Hiroyuki Tokimatsu, Toshihide Miura | 2000-12-05 |
| 6094552 | Image forming apparatus for printing images in accordance with at least one of first information and second information | Satoshi Haneda, Yotaro Sato, Akitoshi Matsubara, Tadayoshi Ikeda, Masakazu Fukuchi | 2000-07-25 |
| 6085059 | Color-toner-use fixing unit and color image forming apparatus | Satoshi Haneda | 2000-07-04 |
| 6085064 | Image forming apparatus | Hisayoshi Nagase, Satoshi Haneda, Yotaro Sato, Toshihide Miura | 2000-07-04 |
| 6058287 | Image forming apparatus having sheet conveyance device | Satoshi Haneda, Yotaro Sato, Hisayoshi Nagase, Shuta Hamada | 2000-05-02 |
| 6021301 | Image forming apparatus which is equipped with an intermediate transfer body and which prevents toner from sticking to a transfer unit | Yotaro Sato, Hisayoshi Nagase, Satoshi Haneda, Toshihide Miura | 2000-02-01 |
| 5995797 | Image forming apparatus which conveys unfixed toner images to a fixing device in an undisturbed and stable manner so that images may be formed on both sides of a sheet | Yotaro Sato, Hisayoshi Nagase, Satoshi Haneda, Toshihide Miura | 1999-11-30 |
| 5991563 | Image forming apparatus | Satoshi Haneda, Yotaro Sato, Hisayoshi Nagase | 1999-11-23 |