Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10691058 | Image forming apparatus, lubricant application method, and computer program | Kunitomo Sasaki, Masayasu Haga, Sayaka Morita | 2020-06-23 |
| 10656548 | Image forming apparatus with a charging power supply that outputs an AC bias and a DC bias | Masayasu Haga, Sayaka Morita, Kunitomo Sasaki | 2020-05-19 |
| 10534283 | Image forming apparatus, image forming apparatus control method, and image forming apparatus control program | Hokuto Hatano | 2020-01-14 |
| 9568883 | Image forming apparatus with a structure for removing residual developer | Yohei ITO, Yoshiki Nakane | 2017-02-14 |
| 9335712 | Method for measuring lubricant-induced surface roughness and image forming apparatus | Tomohisa Yoshida, Yoshiki Nakane, Yohei ITO, Masanori Kawada | 2016-05-10 |
| 9268256 | Image forming apparatus | Yoshiki Nakane, Yohei ITO | 2016-02-23 |
| 9223283 | Image forming apparatus and lubricant application method | Yohei ITO, Yoshiki Nakane, Tomohisa Yoshida, Masanori Kawada | 2015-12-29 |
| 8781384 | Cleaning blade and image forming apparatus | Kuniaki Kashiwakura, Yoshiki Nakane, Hokuto Hatano, Yohei ITO | 2014-07-15 |
| 8045891 | Rotary developing apparatus rotatably accommodating a plurality of developer units, developer unit and image forming apparatus including rotary developing apparatus | Masayuki Nishi | 2011-10-25 |
| 7773926 | Image forming apparatus | Munenori Nakano | 2010-08-10 |
| 5940661 | Image forming apparatus with a charging member which removes smears on an image forming member | Masataka Yagi, Tamotsu Sakuraba, Tetsumaru Fujita, Narutaka Yoshida, Akira Hirota +3 more | 1999-08-17 |
| 5911097 | Image forming apparatus and method using charge control means | Masayasu Haga, Yasuhiro Nakagami, Masami Matsuura, Akira Hirota | 1999-06-08 |
| 5555076 | Apparatus for controlling an exposure | — | 1996-09-10 |
| 5347346 | Image forming apparatus with improved efficiency of maintenance control | Tadafumi Shimizu, Yoshiaki Takano, Hiroyuki Ideyama, Manabu Kamitamari, Kadotaro Nishimori +4 more | 1994-09-13 |
| 5335048 | Efficient control system of image forming apparatus | Yoshiaki Takano, Tadafumi Shimizu, Hiroyuki Ideyama, Manabu Kamitamari, Kadotari Nishimori +4 more | 1994-08-02 |
| 5315351 | Image forming apparatus | Moriyoshi Matsushiro, Naoki Toyoshi | 1994-05-24 |
| 5303005 | Image forming apparatus with improved maintenance control | Yoshiaki Takano, Tadafumi Shimizu, Hiroyuki Ideyama, Manabu Kamitamari, Kadotari Nishimori +4 more | 1994-04-12 |
| 5245389 | Image forming apparatus | Tadafumi Shimizu, Hiroyuki Ideyama, Yoshihiko Hatta, Masazumi Ito | 1993-09-14 |
| 5243382 | Image forming apparatus capable of efficient maintenance work | Yoshiaki Takano, Tadafumi Shimizu, Hiroyuki Ideyama, Manabu Kamitamari, Kadotaro Nishimori +4 more | 1993-09-07 |
| 5194897 | Image forming apparatus with charge wire cleaners | Tadafumi Shimizu, Hiroyuki Ideyama, Yoshihiko Hatta, Masazumi Ito | 1993-03-16 |
| 5159388 | Image forming apparatus | Hiroshi Okamoto, Moriyoshi Matsushiro, Masataka Oda, Masayasu Haga | 1992-10-27 |
| 4772919 | Electrophotographic copying machine | Masataka Oda | 1988-09-20 |
| 4688927 | Electrophotographic copying machine | Masataka Oda, Hisashi Myochin, Kouji Matsushita | 1987-08-25 |