Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9983538 | Transfer device, image forming apparatus, and power supply control method | — | 2018-05-29 |
| 9864307 | Image forming apparatus with a controller to set transfer bias | Kenji Sengoku, Hiromi Ogiyama, Hiroyoshi Haga, Yasunobu Shimizu, Junpei Fujita | 2018-01-09 |
| 9465348 | Power supply device, image forming apparatus, and voltage output method | Tomonori Maekawa, Masahide Nakaya, Katsuhito Suzuki, Shohgo Miura | 2016-10-11 |
| 9400475 | Power supply device to selectively output power and transfer device to transfer a toner image to a sheet | Katsuhito Suzuki, Masahide Nakaya, Shinya Tanaka | 2016-07-26 |
| 9323170 | Image forming apparatus with a controller to set transfer bias | Kenji Sengoku, Hiromi Ogiyama, Hiroyoshi Haga, Yasunobu Shimizu, Junpei Fujita | 2016-04-26 |
| 9188897 | Transfer device, image forming apparatus, and power supply control method | — | 2015-11-17 |
| 9152070 | Transfer device and image forming apparatus | Hiromi Ogiyama, Yasunobu Shimizu, Kenji Sengoku, Hiroyoshi Haga | 2015-10-06 |
| 9075383 | Image forming apparatus | Kenji Sengoku, Hiroyoshi Haga, Hiromi Ogiyama, Yasunobu Shimizu | 2015-07-07 |
| 9057991 | Image forming apparatus | Yasunobu Shimizu, Hiroyoshi Haga, Hiromi Ogiyama, Kenji Sengoku, Junpei Fujita | 2015-06-16 |
| 9037022 | Image forming apparatus, image forming system, and transfer method | Hiroyoshi Haga, Yasunobu Shimizu, Hiromi Ogiyama, Kenji Sengoku, Junpei Fujita | 2015-05-19 |
| 9031436 | Image forming apparatus | Yasunobu Shimizu, Hiroyoshi Haga, Hiromi Ogiyama, Kenji Sengoku, Junpei Fujita | 2015-05-12 |
| 9031480 | Transfer device including a selectively outputting power supply, image forming apparatus including the same, and method of transferring developer to sheet | Katsuhito Suzuki, Masahide Nakaya, Shinya Tanaka | 2015-05-12 |
| 8977153 | Image forming apparatus which uses an AC voltage and/or a DC voltage at a transfer nip depending on a surface roughness of a recording sheet | Hiromi Ogiyama, Yasunobu Shimizu, Kenji Sengoku, Hiroyoshi Haga, Shinya Tanaka | 2015-03-10 |
| 8948644 | Power supply module and image forming apparatus including same | Junpei Fujita, Hiroyoshi Haga, Hiromi Ogiyama, Yasunobu Shimizu, Kenji Sengoku | 2015-02-03 |
| 8929786 | Image forming apparatus, system, and method using a superimposed voltage signal and a direct voltage signal | Hiroyoshi Haga, Yasunobu Shimizu, Hiromi Ogiyama, Kenji Sengoku, Junpei Fujita +1 more | 2015-01-06 |
| 8909079 | Image forming apparatus | Shinji Aoki, Haruo Iimura, Yasuhiko Ogino, Keigo Nakamura, Masahide Nakaya | 2014-12-09 |
| 8891996 | Power supply module and image forming apparatus including same | Junpei Fujita, Hiroyoshi Haga, Hiromi Ogiyama, Yasunobu Shimizu, Kenji Sengoku | 2014-11-18 |
| 8824941 | Image transfer device and image forming apparatus incorporating same | Yasunobu Shimizu, Hiroyoshi Haga, Hiromi Ogiyama, Kenji Sengoku | 2014-09-02 |
| 8818221 | Transfer device and image forming apparatus | Yasuhiko Ogino, Haruo Iimura, Shinji Aoki, Keigo Nakamura, Masahide Nakaya +1 more | 2014-08-26 |
| 8805223 | Image forming apparatus, image forming system, and transfer method | Hiroyoshi Haga, Yasunobu Shimizu, Hiromi Ogiyama, Kenji Sengoku, Junpei Fujita | 2014-08-12 |
| 8761620 | Image forming apparatus, image forming method, and image forming system | — | 2014-06-24 |
| 8729733 | Power control apparatus, image forming apparatus, and power control program product | Yuusuke Kohri | 2014-05-20 |
| 8682231 | Image forming apparatus | Kenji Sengoku, Hiroyoshi Haga, Hiromi Ogiyama, Yasunobu Shimizu | 2014-03-25 |
| 4606979 | Porous thin foil and method for manufacturing the same | — | 1986-08-19 |