Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6595403 | Friction stir welding method | Hisanori Okamura, Masahiko Sakamoto, Kinya Aota, Kouichi Watanabe, Akihiro Sato +2 more | 2003-07-22 |
| 6299050 | Friction stir welding apparatus and method | Hisanori Okamura, Masahiko Sakamoto, Kinya Aota, Kouichi Watanabe, Akihiro Sato +2 more | 2001-10-09 |
| 4617575 | Thermal head | Moriaki Fuyama, Katsumi Tamura, Isao Nunokawa, Masanobu Hanazono, Shigetoshi Hirastuka | 1986-10-14 |