Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10538971 | Drill bit insert and drill bit | Wardoyo AKHMADI EKO, Toshihiko Matsuo | 2020-01-21 |
| 10465448 | Drill bit insert and drill bit | Wardoyo AKHMADI EKO, Toshihiko Matsuo | 2019-11-05 |
| 10399153 | Rotary cutting tool including polycrystalline diamond material | Toshihiko Matsuo, Wardoyo AKHMADI EKO, Tadakazu Ohashi | 2019-09-03 |
| 10352104 | Drill bit button insert and drill bit | Wardoyo AKHMADI EKO, Toshihiko Matsuo | 2019-07-16 |