Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12110758 | Downhole tool securing device and frac plug | Shinya Takahashi | 2024-10-08 |
| 12065902 | Frac plug and method for manufacturing same, and method for sealing borehole | Shinya Takahashi | 2024-08-20 |
| 11226217 | Field device, system, and waveform data output method | Kenichi NAKAGAKI | 2022-01-18 |
| 10698388 | Field device | Ikuhiko Ishikawa, Toru Shimura, Daisuke Harigane | 2020-06-30 |
| 9882572 | Field device and detector | — | 2018-01-30 |