Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5004884 | Method of submerged arc welding a thick steel plate with large heat input and submerged arc welding flux | Shuichi Sakaguchi, Tadamasa Yamaguchi | 1991-04-02 |
| 4436981 | Vertical down welding process by gravity arc welding and welding machine therefor | Noboru Sakamoto, Satoshi Wada, Kenichi Yano, Suehiro Oda | 1984-03-13 |