Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7601432 | Friction stir welding method and group of shape members for friction stir welding | Masakuni Ezumi, Masaaki Shigeyama | 2009-10-13 |
| 7366689 | Method of notifying information about commodity | — | 2008-04-29 |
| 7121450 | Friction stir welding method and group of shape members for friction stir welding | Masakuni Ezumi, Masaaki Shigeyama | 2006-10-17 |
| 6779706 | Frame member for friction stir welding | Masakuni Ezumi, Kazusige Fukuyori, Yoshihiko Ina | 2004-08-24 |
| 6779705 | Friction stir welding method | Masakuni Ezumi, Kazushige Fukuyori | 2004-08-24 |
| 6582831 | Friction stir welded body and frame member therefor | Masakuni Ezumi, Kazushige Fukuyori | 2003-06-24 |
| 6557746 | Friction stir bonding method | Masakuni Ezumi, Kazushige Fukuyori | 2003-05-06 |
| 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 |