Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11821264 | Drilling tip and drill bit | Yuichiro Takeuchi, Toshihiko Matsuo | 2023-11-21 |
| 11193335 | Polycrystalline diamond sintered material tool excellent in interfacial bonding strength and method of producing same | Toshihiko Matsuo, Minoru Akaishi | 2021-12-07 |
| 10900293 | Drilling tip, drilling tool, and method of manufacturing drilling tip | Masahiro Yano, Toshihiko Matsuo, Yuki AKAHOSHI, Yuichiro Takeuchi | 2021-01-26 |
| 10538971 | Drill bit insert and drill bit | Toshihiko Matsuo, Chihiro SAKURAZAWA | 2020-01-21 |
| 10465448 | Drill bit insert and drill bit | Toshihiko Matsuo, Chihiro SAKURAZAWA | 2019-11-05 |
| 10399153 | Rotary cutting tool including polycrystalline diamond material | Toshihiko Matsuo, Chihiro SAKURAZAWA, Tadakazu Ohashi | 2019-09-03 |
| 10352104 | Drill bit button insert and drill bit | Toshihiko Matsuo, Chihiro SAKURAZAWA | 2019-07-16 |