Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10197932 | Toner | Tsutomu Katsumata | 2019-02-05 |
| 10078284 | Toner | Tsutomu Katsumata | 2018-09-18 |
| 9785073 | Toner | Tsutomu Katsumata | 2017-10-10 |
| 8486599 | Developer and image forming apparatus | — | 2013-07-16 |
| 8260178 | Toner cartridge and image forming apparatus | — | 2012-09-04 |
| 6895192 | Image forming apparatus and developer replenishment control method | Tetsuo Katoh | 2005-05-17 |