Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11965856 | Method and device for detecting metal residue in electric-resistance-welded steel pipe | Yoshiyuki Nakao | 2024-04-23 |
| 11193910 | Device and method of detecting magnetic characteristic change for long material | Yoshiyuki Nakao, Yoshiyuki Ota | 2021-12-07 |
| 9291599 | Magnetic testing method and apparatus | Yoshiyuki Nakao, Makoto Sakamoto, Yoshiyuki Oota | 2016-03-22 |
| 9121833 | Defect inspecting apparatus | Kazunori Anayama, Yoshiyuki Nakao, Masami Ikeda, Kenta Sakai | 2015-09-01 |
| 8977580 | Defect classification apparatus | Kazunori Anayama, Tetsuya Yadoguchi, Eiji Honda, Takahiro Okada, Shinya Yoshikawa +1 more | 2015-03-10 |
| 8466674 | Magnetic testing method and magnetic testing apparatus | Kenji Imanishi | 2013-06-18 |
| 5747988 | Method and apparatus for flaw detection by leakage fluxes and leakage flux sensor | — | 1998-05-05 |
| 5739685 | Method and apparatus for flaw detection by leakage fluexes and leakage flux sensor | — | 1998-04-14 |