Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6779705 | Friction stir welding method | Masakuni Ezumi, Kazushige Fukuyori | 2004-08-24 |
| 6779706 | Frame member for friction stir welding | Masakuni Ezumi, Kazusige Fukuyori, Yoshihiko Ina | 2004-08-24 |