Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6982397 | Tig welding apparatus and method | Minoru Yamada | 2006-01-03 |
| 4366362 | All position TIG welding process | Ichiro Ohta, Masayuki Watando, Akira Yamaoka, Kouzi Ishiwata, Minoru Yamada | 1982-12-28 |