Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6474533 | Friction stir welding method | Masakuni Ezumi, Kazusige Fukuyori, Yoshihiko Ina | 2002-11-05 |
| 6354483 | Friction stir welding method | Masakuni Ezumi, Kazushige Fukuyori | 2002-03-12 |