Issued Patents 2017
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9827617 | Drill and method of manufacturing drill | Manabu Saito, Tatsuo Nakahata, Masao Watanabe, Toshio Nishino | 2017-11-28 |
| 9669472 | Drilling apparatus and drilling method | Hideaki Miyajima, Takashi Murakami, Tatsuo Nakahata | 2017-06-06 |
| 9656328 | Cutting tool | Manabu Saito, Tatsuo Nakahata, Junji Tsuchiya, Masao Watanabe, Eiji Hashimoto +1 more | 2017-05-23 |