Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6068178 | Friction agitation joining method and friction agitation joining device | — | 2000-05-30 |
| 5924320 | Device for unfolding a shaped metal article and a method for unfolding the same | Saburo Washo, Yasuo Iisaka, Kenzo Shitashimizu | 1999-07-20 |
| 5848545 | Extruded material for expansion working and method of expansion working | — | 1998-12-15 |