Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8974610 | High-strength welded steel pipe and method for producing the same | Takuya Hara, Yoshio Terada, Shinya Sakamoto, Hitoshi Asahi | 2015-03-10 |
| 8110292 | High strength steel plate, steel pipe with excellent low temperature toughness, and method of production of same | Shinya Sakamoto, Takuya Hara, Hitoshi Asahi | 2012-02-07 |