Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9423769 | Process cartridge | Satoru Ishikawa | 2016-08-23 |
| D724139 | Photosensitive drum unit | Takashi Shimizu, Satoru Ishikawa, Keita Shimizu | 2015-03-10 |
| D723614 | Toner cartridge | Takashi Shimizu, Satoru Ishikawa, Keita Shimizu | 2015-03-03 |