Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9023158 | Steel material superior in high temperature characteristics and toughness and method of production of same | Suguru Yoshida, Hiroshi Kita, Hirokazu Sugiyama, Teruyuki Wakatsuki | 2015-05-05 |
| 8303734 | High strength thick steel material and high strength giant H-shape excellent in toughness and weldability and methods of production of same | Suguru Yoshida, Hiroshi Kita, Hirokazu Sugiyama, Teruyuki Wakatsuki | 2012-11-06 |