Issued Patents 2021
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11097357 | Drill bit and hole formation method | Takaaki Ogashiwa, Noritsugu Umehara, Shintarou OYAMA | 2021-08-24 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11097357 | Drill bit and hole formation method | Takaaki Ogashiwa, Noritsugu Umehara, Shintarou OYAMA | 2021-08-24 |