Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9790579 | High tensile strength steel plate having excellent weld heat-affected zone low-temperature toughness and method for producing same | Shigeki Kitsuya, Yusuke Terazawa, Minoru Suwa, Kenji Hayashi | 2017-10-17 |
| 9777358 | Thick-walled, high tensile strength steel with excellent CTOD characteristics of the weld heat-affected zone, and manufacturing method thereof | Katsuyuki Ichimiya, Kenji Hayashi | 2017-10-03 |