Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12377474 | Drill head and drill | Kouki Matsubara, Kenta Nishi | 2025-08-05 |
| D1029896 | Drill head | Kouki Matsubara, Kenta Nishi | 2024-06-04 |
| D1029060 | Drill holder | Kouki Matsubara, Kenta Nishi | 2024-05-28 |
| 10766077 | Cutting tool | Yoshikatsu Mori, Kouki Matsubara, Masaaki Jindai, Kazuhiko Kashima, Yasuhiro Kajiwara | 2020-09-08 |
| D823909 | Drill head | Yuma Kawakami, Yoshiji Sato | 2018-07-24 |