Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11400524 | Drill and method of producing drilled product | Masao Watanabe, Ryohei Ono, Tatsuo Nakahata | 2022-08-02 |
| 11335831 | Optical device case and optical device | Hidekazu Hayashi | 2022-05-17 |