Issued Patents 2021
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11077579 | Staple-refill | Shinpei Sugihara | 2021-08-03 |
| 11077580 | Refill | Toshio Shimizu, Katsunori Manabe, Kiichi Haramiishi | 2021-08-03 |
| 10906201 | Staple-refill | Shinpei Sugihara | 2021-02-02 |
| 10882173 | Stapler | Toshio Shimizu, Shinpei Sugihara | 2021-01-05 |