Issued Patents All Time
Showing 1–25 of 53 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9874116 | Valve-timing control device for internal combustion engine | Atsushi Yamanaka, Seiji Tsuruta | 2018-01-23 |
| 9683465 | Valve-timing control apparatus for internal combustion engine | Ryo Tadokoro, Seiichi Sue, Shinichi Kawada, Hiroyuki Nemoto | 2017-06-20 |
| 9115611 | Variable valve operating apparatus for internal combustion engine | Atsushi Yamanaka, Ryo Tadokoro, Hiroyuki Nemoto | 2015-08-25 |
| 8881399 | Method of manufacturing a nozzle plate for a liquid ejection head | Atsuro Yanata | 2014-11-11 |
| 8162439 | Method for manufacturing nozzle plate for liquid ejection head, nozzle plate for liquid ejection head and liquid ejection head | Tomoko Miyaura, Hiroshi Oshitani | 2012-04-24 |
| 7665829 | Liquid solution ejecting apparatus | Nobuhiro Ueno, Yasuo Nishi, Nobuhisa Ishida | 2010-02-23 |
| 6661555 | Light shutter device | Tomohiko Masuda, Ken Matsubara, Yasuyuki Hiromoto | 2003-12-09 |
| 6441941 | Light shutter device | Itaru Saito, Tomohiko Masuda, Tsukasa Yagi, Ken Matsubara, Yuji Kamoda | 2002-08-27 |
| 6347894 | Light shutter device | Tsukasa Yagi, Yuji Kamoda | 2002-02-19 |
| 6124965 | Optical element and light shutter device using the same | Itaru Saito, Kenichi Wada | 2000-09-26 |
| 5930565 | Image forming apparatus | Keiko Momotani, Akihito Ikegawa | 1999-07-27 |
| 5881343 | Charging method and charging device | Keiko Momotani, Akihito Ikegawa | 1999-03-09 |
| 5862443 | Electrostatic recording apparatus having a floating electrode on a photoelectric transfer member | Akihito Ikegawa, Keiko Momotani | 1999-01-19 |
| 5860046 | Charging method and charging device | Akihito Ikegawa, Keiko Momotani | 1999-01-12 |
| 5790925 | Electrophotographic image forming apparatus with low ozone generation | Keiko Momotani, Akihito Ikegawa | 1998-08-04 |
| 5774169 | Image forming apparatus | Akihito Ikegawa, Masashi Yamamoto, Seishi Ojima, Keiko Nagayasu | 1998-06-30 |
| 5652649 | Charging device and image forming apparatus | Akihito Ikegawa, Keiko Nagayasu | 1997-07-29 |
| 5572294 | Contact charger and image forming apparatus provided with same | Izumi Osawa, Seishi Ojima, Yoshihiro Uchimoto | 1996-11-05 |
| 5557372 | Contact charger and image forming apparatus provided with same | Seishi Ojima, Izumi Osawa | 1996-09-17 |
| 5557375 | Contact type charging device and image forming apparatus having the same | Keiko Nagayasu, Akihito Ikegawa, Masashi Yamamoto | 1996-09-17 |
| 5536610 | Photosensitive member having surface protective layer with specified optical properties | Seishi Ojima, Kenji Masaki, Takeshi Kakutani, Toshiyuki Kobayashi, Izumi Osawa | 1996-07-16 |
| 5396317 | Magnetic particle-containing member for use in copying machine | Izumi Osawa, Kenji Masaki, Shuji Iino | 1995-03-07 |
| 5330873 | Production method of photosensitive member by eliminating outermost surface portion of photosensitive layer | Kenji Masaki, Shuji Iino, Izumi Osawa | 1994-07-19 |
| 5308727 | Photosensitive member excellent in antioxidation | Izumi Osawa | 1994-05-03 |
| 5242773 | Photosensitive member having fine cracks in surface protective layer | Shuji Iino, Kenji Masaki, Seishi Ojima, Izumi Osawa | 1993-09-07 |