Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11016440 | Cartridge reproduction method and cartridge | Hiroki Shimizu, Masato Tanabe | 2021-05-25 |
| 10955794 | Cartridge and remanufacturing method of cartridge | Hiroki Shimizu, Masakazu Tatsumi | 2021-03-23 |