Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8254004 | Oscillator and optical deflector having oscillator | Takashi Ushijima, Takahisa Kato, Tomoyuki Kawano | 2012-08-28 |
| 8244146 | Image forming apparatus and image forming method with error corrected potential measurements | Yoshitaka Zaitsu, Takashi Ushijima, Kazuhiko Kato, Toshiyuki Ogawa | 2012-08-14 |
| 7990159 | Potential measurement apparatus and image forming apparatus | Kazuhiko Kato, Toshiyuki Ogawa, Yoshitaka Zaitsu, Takashi Ushijima, Atsushi Kandori +1 more | 2011-08-02 |
| 7710129 | Potential measurement apparatus and image forming apparatus | Toshiyuki Ogawa, Yoshitaka Zaitsu, Takashi Ushijima, Atsushi Kandori, Kazuhiko Kato +1 more | 2010-05-04 |
| 7639020 | Potential sensor and image forming apparatus having potential sensor | Takashi Ushijima, Atsushi Kandori, Yoshitaka Zaitsu, Kazuhiko Kato, Toshiyuki Ogawa +1 more | 2009-12-29 |
| 7372278 | Electric potential measuring apparatus electrostatic capacitance measuring apparatus, electric potential measuring method, electrostatic capacitance measuring method, and image forming apparatus | Atsushi Kandori, Yoshikatsu Ichimura, Takashi Ushijima, Yoshitaka Zaitsu | 2008-05-13 |
| 6698960 | Push-button writing implement | — | 2004-03-02 |