Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11009409 | Pressure sensor device, control device, and pressure sensor unit | Masato Hirai, Takeshi Yoshizawa | 2021-05-18 |
| 10216482 | Semiconductor device, position detection device, and control method of semiconductor device | Masato Hirai, Yuki Higuchi, Kosuke Fuwa | 2019-02-26 |
| 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 |
| 7573324 | Reference voltage generator | — | 2009-08-11 |
| 5031434 | Plug for manufacturing seamless steel pipe | Akira Takase, Takashi Tamura, Tsuneo Oikawa, Yutaka Mihara, Tomoyuki Hirakawa | 1991-07-16 |