Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8361248 | Steel superior in CTOD properties of weld heat-affected zone and method of production of same | Rikio Chijiiwa, Ryuji Uemori, Yoshiyuki Watanabe, Kazuhiro Fukunaga, Akihiko Kojima | 2013-01-29 |
| 7918948 | Method of production of 780 MPa class high strength steel plate excellent in low temperature toughness | Kazuhiro Fukunaga, Ryuji Uemori, Yoshiyuki Watanabe, Rikio Chijiiwa | 2011-04-05 |