Issued Patents All Time
Showing 1–25 of 170 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11526094 | Charging device and image-forming apparatus capable of preventing an inward inclining of bearing members | — | 2022-12-13 |
| 10727021 | Electron emission element, electrification apparatus, and image forming apparatus | Hiroyuki Hirakawa, Tadashi Iwamatsu | 2020-07-28 |
| 10066616 | Pump and method for operating pump | — | 2018-09-04 |
| 9958901 | Electronic device | Hiroyuki Takita, Kazunobu Yoneyama, Kei Kojima, Yoshifumi Kajiwara, Toru Koike +2 more | 2018-05-01 |
| D781921 | Reciprocating pump | Shunsuke Nakanishi | 2017-03-21 |
| 8892337 | Apparatus for detecting imbalance abnormality in air-fuel ratio between cylinders in multi-cylinder internal combustion engine | Shota Kitano, Hitoshi Tanaka, Isao Nakajima, Yoshihisa Oda, Masashi Hakariya +4 more | 2014-11-18 |
| 8642886 | Seal structure, electronic device, portable device, and seal method | Shingo Yamaguchi, Satoshi Watanabe, Kohei Choraku, Shigehiro Fujii, Yoshito Fukata | 2014-02-04 |
| 8626030 | Charging device having discharge electrode and, image forming apparatus comprising charging device, and method for forming discharge electrode | — | 2014-01-07 |
| 8620564 | Abnormality detection apparatus and abnormality detection method for multi-cylinder internal combustion engine | Masashi Hakariya, Isao Nakajima, Yoshihisa Oda, Hitoshi Tanaka, Kiyotaka Kushihama +4 more | 2013-12-31 |
| 8199524 | Electronic device and metal plate member | Nagahisa Chikazawa | 2012-06-12 |
| 8134509 | Electronic device | — | 2012-03-13 |
| 8073365 | Ion generating device, charging device, and image forming apparatus | Shoutaro Okamoto | 2011-12-06 |
| 8068768 | Ion generating element, charging device, and image forming apparatus | Shoutaro Okamoto, Toshiaki Kagawa | 2011-11-29 |
| 8055157 | Ion generating element, charging device and image forming apparatus | — | 2011-11-08 |
| 7876568 | Electronic device | Nagahisa Chikazawa | 2011-01-25 |
| 7826763 | Ozone removal device, image forming apparatus having the same, and method for removing ozone | Hiroshi Doshohda, Toshiaki Kagawa | 2010-11-02 |
| 7801464 | Ion generating device with a discharge electrode on a dielectric body coated by a protective layer made of metal | Toshiaki Kagawa, Shogo Yokota, Masashi Hirai | 2010-09-21 |
| 7796903 | Charging apparatus with a discharge electrode having a plurality of sharp-pointed portions | Toshiaki Kagawa, Hiroshi Doshohda | 2010-09-14 |
| 7778561 | Charging device for charging charge receiving material, image forming apparatus including the same, control method of the charging device and computer-readable storage medium recording control program for the charging device | — | 2010-08-17 |
| 7764298 | Ion generating element, with independent heating electrode, and charging device and image forming apparatus using ion generating element | — | 2010-07-27 |
| 7710356 | Plasma display device | Satoshi Ikeda, Yoshinori Yamada, Mikihiko Nishitani, Masashi Goto | 2010-05-04 |
| 7652883 | Electronic device | Nagahisa Chikazawa | 2010-01-26 |
| 7529510 | Image forming apparatus with developing device having discharge openings | Takashi Hirota, Shuichi Akedo | 2009-05-05 |
| 7515425 | Electronic device and cooling unit | Nagahisa Chikazawa | 2009-04-07 |
| 7508369 | Driving technique for activating liquid crystal device | Mika Nakamura, Kiyohiro Kawasaki, Katsuji Hattori | 2009-03-24 |