Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9109884 | Method and equipment for manufacturing electric resistance welded steel pipe | Tomohiro Inoue, Shigeto Sakashita, Daijiro Yuasa, Kazuhito Kenmochi, Yukinori Iizuka | 2015-08-18 |
| 9000320 | Method of manufacturing electric resistance welding pipe having excellent characterization of welded seam | Kazuhito Kenmochi, Takatoshi Okabe, Yuji Sugimoto, Muneyoshi Murakami, Osamu Shiotani +3 more | 2015-04-07 |
| 8912462 | Method of manufacturing electric resistance welding pipes having excellent characterization of welded seams | Kazuhito Kenmochi, Takatoshi Okabe, Yuji Sugimoto, Yoshifumi Fujioka, Kei Sakata +5 more | 2014-12-16 |
| 8578580 | Quality control method and manufacturing method for pipe | Yukinori Iizuka, Kazuhito Kenmochi, Tomohiro Inoue, Shigeto Sakashita | 2013-11-12 |
| 8393217 | Ultrasonic flaw detection apparatus and ultrasonic flaw detection method for pipe | Yukinori Iizuka, Kazuhito Kenmochi, Tomohiro Inoue, Shigeto Sakashita | 2013-03-12 |
| 8328957 | Electric resistance welded steel pipe with excellent weld toughness for line pipe | Kazuhito Kenmochi, Takatoshi Okabe, Yukinori Iizuka | 2012-12-11 |
| 8296932 | Manufacturing equipment for electric resistance welding pipes having excellent characterization for welded seam | Kazuhito Kenmochi, Takatoshi Okabe, Hiroyuki Shirosawa, Tetsuro Sawaki, Yuji Sugimoto +2 more | 2012-10-30 |
| 8266964 | Calibration of an ultrasonic flaw detector and quality control and production methods for a tubular body | Yukinori Iizuka, Kazuhito Kenmochi, Tomohiro Inoue, Shigeto Sakashita | 2012-09-18 |
| 6795203 | Image input/output apparatus | Hisayuki Akahane | 2004-09-21 |
| 6375763 | Pearlitic steel railroad rail | Shinji Mitao | 2002-04-23 |
| 5759299 | Rail having excellent resistance to rolling fatigue damage and rail having excellent toughness and wear resistance and method of manufacturing the same | Sadahiro Yamamoto, Kazutaka Kobayashi | 1998-06-02 |