Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12416888 | Image forming apparatus | Keita Sone, Shinya Tanaka, Masashi Tachi | 2025-09-16 |
| 12189319 | Image forming apparatus to perform phase matching control to match phases of image-density cycle fluctuations | Keita Sone, Naoki Ohta | 2025-01-07 |
| 11960218 | Image forming and correction apparatus | — | 2024-04-16 |
| 11402784 | Image forming apparatus and image formation method | Masashi Tachi, Masaki Sukesako, Keita Sone | 2022-08-02 |
| 10599081 | Image forming apparatus and voltage application method | Masashi Tachi, Takuma Higa, Masayoshi Nakayama, Masaki Sukesako, Yuichi Aizawa +2 more | 2020-03-24 |
| 10241462 | Image forming apparatus | Masayoshi Nakayama, Takuma Higa, Masaki Sukesako, Masashi Tachi, Kazuaki Kamihara +2 more | 2019-03-26 |
| 10061226 | Image forming apparatus and image forming method | Kazuaki Kamihara, Yuuichiroh Uematsu, Tetsuya Muto, Keita Sone, Keita Gotoh +5 more | 2018-08-28 |
| 9535376 | Image forming apparatus that switches transfer bias based on detected environment condition | Keita Sone, Shinichi Akatsu, Tetsuya Muto, Akira Yoshida, Keita Gotoh +1 more | 2017-01-03 |
| 9513585 | Image forming apparatus which sets image forming condition based on calculated exposed area potential | Keita Sone | 2016-12-06 |
| 9436135 | Toner pattern density correction in an image forming apparatus | Keita Sone, Nobutaka Takeuchi, Shinichi Akatsu, Kohta Fujimori, Tetsuya Muto +4 more | 2016-09-06 |
| 9316954 | Image forming apparatus | Ken Yoshida, Keiko Matsumoto, Daisuke Ito, Daisuke Takahashi, Masahiro Katoh +1 more | 2016-04-19 |
| 8620170 | Image forming apparatus | — | 2013-12-31 |
| 8599413 | Image forming apparatus | Yoshiaki Morita, Sohichiroh Ishikawa | 2013-12-03 |
| 8472822 | Image forming apparatus and method capable of changing image formation condition based on detection result of reference image | — | 2013-06-25 |
| 8019239 | Device and method for detecting life of organic photoreceptor and image forming apparatus | Masayoshi Nakayama, Shinichi Akatsu | 2011-09-13 |
| 7925174 | Image forming apparatus | Masayoshi Nakayama, Shinichi Akatsu, Takuma Higa | 2011-04-12 |