Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12350753 | Method for monitoring welding of electric resistance welded steel pipe, method for manufacturing electric resistance welded steel pipe, device for monitoring welding of electric resistance welded steel pipe, and device for manufacturing electric resistance welded steel pipe | Noboru Hasegawa, Takashi Miyakawa, Toshisuke Fukami | 2025-07-08 |
| 9050681 | Method of production of electric resistance welded steel pipe and high Si or high Cr electric resistance welded steel pipe | Hideki Hamatani, Shinji Kodama, Nobuo Mizuhashi, Sunao Takeuchi, Tomohiro Nakaji +3 more | 2015-06-09 |
| 8406504 | System and method for monitoring of welding state | Noboru Hasegawa, Hideki Hamatani, Kazuto Yamamoto, Takashi Miyakawa | 2013-03-26 |