Issued Patents All Time
Showing 1–25 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE47726 | Image forming apparatus | Shinji Aoki, Yasuhiko Ogino, Tadashi Kasai, Naomi Sugimoto, Shinya Tanaka +1 more | 2019-11-12 |
| 10088781 | Image forming apparatus and image forming method | Shinya Tanaka, Naomi Sugimoto, Shinji Aoki, Yasuhiko Ogino, Kazuchika Saeki +1 more | 2018-10-02 |
| 9658579 | Image forming apparatus including a transfer bias output device | Keigo Nakamura, Shinji Aoki | 2017-05-23 |
| 9563153 | Image forming apparatus and image forming method | Shinya Tanaka, Naomi Sugimoto, Shinji Aoki, Yasuhiko Ogino, Kazuchika Saeki +1 more | 2017-02-07 |
| 9335674 | Transfer device with transfer voltage unit and image forming apparatus using the same | Naomi Sugimoto, Shinya Tanaka, Shinji Aoki, Yasuhiko Ogino, Keigo Nakamura | 2016-05-10 |
| 9310722 | Image forming apparatus and image forming method | Shinya Tanaka, Naomi Sugimoto, Shinji Aoki, Yasuhiko Ogino, Kazuchika Saeki +1 more | 2016-04-12 |
| 9285723 | Image forming apparatus and image forming method | Naomi Sugimoto, Shinya Tanaka, Shinji Aoki, Yasuhiko Ogino, Keigo Nakamura | 2016-03-15 |
| 9081335 | Transfer device with transfer voltage unit and image forming apparatus using the same | Naomi Sugimoto, Shinya Tanaka, Shinji Aoki, Yasuhiko Ogino, Keigo Nakamura | 2015-07-14 |
| 9020382 | Image forming apparatus | Shinji Aoki, Yasuhiko Ogino, Tadashi Kasai, Naomi Sugimoto, Shinya Tanaka +1 more | 2015-04-28 |
| 8923716 | Transfer device, image forming apparatus, and transfer method | Keigo Nakamura, Shinji Aoki, Yasuhiko Ogino | 2014-12-30 |
| 8909079 | Image forming apparatus | Shinji Aoki, Yasuhiko Ogino, Keigo Nakamura, Masahide Nakaya, Tomokazu Takeuchi | 2014-12-09 |
| 8818221 | Transfer device and image forming apparatus | Yasuhiko Ogino, Shinji Aoki, Keigo Nakamura, Masahide Nakaya, Tomokazu Takeuchi +1 more | 2014-08-26 |
| 8781348 | Transfer device and image forming apparatus incorporating same | Yasuhiko Ogino, Shinji Aoki, Keigo Nakamura | 2014-07-15 |
| 8750736 | Image forming apparatus for obtaining good image quality over time | Keigo Nakamura, Yasuhiko Ogino, Shinji Aoki | 2014-06-10 |
| 8712267 | Image forming apparatus and image forming method | Naomi Sugimoto, Shinya Tanaka, Shinji Aoki, Yasuhiko Ogino, Keigo Nakamura | 2014-04-29 |
| 8165481 | Image forming method and apparatus that detect an image density | — | 2012-04-24 |
| 8045875 | Image forming apparatus and image forming method capable of generating stable transfer electric field | Shinji Aoki | 2011-10-25 |
| 7662530 | Image forming apparatus and image forming method | — | 2010-02-16 |
| 6284424 | Electrophotographic toner and image forming method and apparatus using the toner | Takeo Yamaguchi | 2001-09-04 |
| 5595852 | Organosilicon compound, producing method thereof and toner and dry-type developer using the same | Masakatsu Shimoda, Hiroyuki Takahashi, Fuyuhiko Matsumoto | 1997-01-21 |
| 5472635 | Phase plate and liquid crystal display using same | Shigeki Iida, Takehiro Toyooka, Hiroyuki Itoh, Yasuyuki Takiguchi, Akihiko Kanemoto | 1995-12-05 |
| 5380459 | Liquid crystal display device with improved viewing angle dependence of color | Akihiko Kanemoto, Yasuyuki Takiguchi | 1995-01-10 |
| 5250214 | Liquid crystal color display device provided with a color filter film and an optical phase plate comprising liquid crystal polymer | Akihiko Kanemoto, Yasuyuki Takiguchi, Shigeki Iida, Takehiro Toyooka, Hiroyuki Ito | 1993-10-05 |
| 5243451 | DAP type liquid crystal device with cholesteric liquid crystal birefringent layer | Akihiko Kanemoto, Yasuyuki Takiguchi | 1993-09-07 |
| 5184237 | Super-twisted nematic type liquid crystal display device | Yasuyuki Takiguchi, Akihiko Kanemoto | 1993-02-02 |