Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7172174 | Laser welding method, laser welding structure, and throttle valve device | Ryo Sano, Mitsutaka Hirata, Yasunori Kawamoto, Youichi Matsui | 2007-02-06 |
| 6919528 | Welding machine and welding method for energy welding of cylinder members | Hideaki Shirai, Koji Murakami, Norio Tanaka, Yoshiki Kariya, Takayuki Hokao | 2005-07-19 |