Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10019233 | Semiconductor device, position detection device, and control method of semiconductor device | Masato Hirai, Yuki Higuchi, Kosuke Fuwa | 2018-07-10 |
| 9970242 | Galling resistant drill pipe tool joint and corresponding drill pipe | Tomoyuki Narikawa, Tatsuo Ono, Koji Sakura, Toshihiko Fukui, Motohisa Yoshida +2 more | 2018-05-15 |