Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8147961 | Carburized metal material and producing method thereof | Takeshi Matsuo, Mitsuo Suzuki, Takaaki Niinomi, Yuichi Furukawa, Setsuyu Hayakawa | 2012-04-03 |
| 7703656 | Friction stir welding tool and friction stir welding apparatus | Seung Hwan Park, Satoshi Hirano, Yutaka Sato, Hiroyuki Kokawa | 2010-04-27 |