Issued Patents 2017
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9839988 | Blast processing device and blast processing method | Yoshihiko Kondo, Hirotsugu Takazawa, Tatsuo Nakahata, Hisayuki Oode | 2017-12-12 |
| 9827617 | Drill and method of manufacturing drill | Tatsuo Nakahata, Hideharu Takahashi, Masao Watanabe, Toshio Nishino | 2017-11-28 |
| 9776453 | Tightening device and tightening method | Katsuhiro Fujimoto, Toshihiko Kushida, Tatsuo Hirai, Yukio Torigai, Tatsuo Nakahata +1 more | 2017-10-03 |
| 9656328 | Cutting tool | Tatsuo Nakahata, Hideharu Takahashi, Junji Tsuchiya, Masao Watanabe, Eiji Hashimoto +1 more | 2017-05-23 |
| 9645026 | Tightening device | Katsuhiro Fujimoto, Toshihiko Kushida, Tatsuo Hirai, Yukio Torigai, Tatsuo Nakahata +1 more | 2017-05-09 |
| 9555482 | Air control device and air control method | Tatsuo Nakahata, Masao Watanabe, Tsuneari Mimori | 2017-01-31 |