Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12085873 | Developing device and image forming apparatus capable of shortening time required to circulate developer in circulation path | Chihiro Hagiwara, Kiyoshi Sako, Masayuki Shimoda, Kento Terashima | 2024-09-10 |
| 11852993 | Toner container and image forming apparatus | Kento Terashima, Kiyoshi Sako, Chihiro Hagiwara, Masayuki Shimoda | 2023-12-26 |
| 11841637 | Developing device and image forming apparatus | Kiyoshi Sako, Chihiro Hagiwara, Masayuki Shimoda, Kento Terashima | 2023-12-12 |
| 11822281 | Sensor cleaning device and image forming apparatus | Chihiro Hagiwara, Kiyoshi Sako, Kento Terashima, Masayuki Shimoda | 2023-11-21 |
| 11054779 | Image forming apparatus including a speed changing unit | Satoshi Tanaka, Junichi Ishibashi, Chihiro Hagiwara | 2021-07-06 |
| 9423747 | Image forming apparatus having unit specifying which image forming section attaches developer | Junichi Ishibashi, Satoshi Tanaka, Shinji Mitsui, Chihiro Hagiwara | 2016-08-23 |
| 7505701 | Thermostat and non-contact type temperature sensor arrangement in an image forming apparatus | Yasuki Tanaka | 2009-03-17 |
| 7461841 | Sheet discharging apparatus and image forming apparatus | Yasuki Tanaka | 2008-12-09 |
| 6721518 | Thermal fuser and image formation apparatus | Hideo Oshida, Yasuki Tanaka, Hitoshi Nanba | 2004-04-13 |