AS

Akihiro Satuo

HI Hitachi: 1 patents #17,742 of 28,497Top 65%
Overall (All Time): #3,612,314 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6050474 Friction stir welding method, frame members used therein, and product formed thereby Kinya Aota, Masakuni Ezumi, Yasuo Ishimaru, Hisanori Okamura, Isao Funyuu 2000-04-18