Issued Patents 2020
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D898820 | Toner cartridge | Junichi Ushikubo, Tatsuhiko Shimomura, Shun Hatanaka | 2020-10-13 |
| D898114 | Toner cartridge | Junichi Ushikubo, Tatsuhiko Shimomura, Shun Hatanaka | 2020-10-06 |
| D892921 | Toner cartridge | Junichi Ushikubo, Tatsuhiko Shimomura, Shun Hatanaka | 2020-08-11 |
| 10670988 | Developer container, image forming unit, and image forming apparatus | Junichi Ushikubo | 2020-06-02 |
| 10606208 | Developer container, image formation unit, and image formation apparatus | Hisatoshi Saito, Tetsu Koyama, Shun Hatanaka | 2020-03-31 |