Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11819964 | Nut and bolt tightening method and tightening device | Tomohiro Ogata, Seiji Ito, Shinji Hashimura | 2023-11-21 |
| 11772213 | Tightening device | Tomohiro Ogata, Seiji Ito | 2023-10-03 |
| 11660713 | Fastening device | Tomohiro Ogata, Seiji Ito | 2023-05-30 |
| 11364580 | Fastening device | Tomohiro Ogata, Seiji Ito | 2022-06-21 |
| 10850376 | Tensioning device | Hiroshi Tsuji, Osamu Tsuji, Seiji Ito | 2020-12-01 |
| 10828759 | Tensioning device | Hiroshi Tsuji, Osamu Tsuji, Seiji Ito | 2020-11-10 |
| 10794416 | Tensioning device | Hiroshi Tsuji, Osamu Tsuji, Seiji Ito | 2020-10-06 |