Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8438926 | Method of evaluating fastening state of threaded joint of pipes or tubes, method for fastening threaded joint of pipes or tubes, and apparatus for evaluating fastening state of threaded joint of pipes or tubes | Masaki Yamano, Makoto Sakamoto, Keiichi Nakamura, Jun Masubuchi, Kenta Sakai | 2013-05-14 |
| 8113055 | Method for evaluating fastening state of threaded joint of pipes or tubes and method for fastening threaded joint of pipes or tubes using the method | Masaki Yamano, Shigeo Nagasaku | 2012-02-14 |
| 8091425 | Ultrasonic testing method of threaded joint of pipes or tubes | Masaki Yamano, Shigeo Nagasaku | 2012-01-10 |