Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12123263 | Multidirectional auger bit | — | 2024-10-22 |
| 11891860 | Casing protection bit | Seiji Tanaka | 2024-02-06 |
| 11795765 | Auger bit | Takahiro Monnzaki | 2023-10-24 |
| 11441361 | Cutter bit | Yohei Iwanaga | 2022-09-13 |