ST

Soutarou Tanaka

HC Hitachi Construction Machinery Co.: 1 patents #701 of 1,234Top 60%
📍 Ushiku, JP: #142 of 241 inventorsTop 60%
Overall (All Time): #3,842,074 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5081905 Hydraulic pilot operation circuit and valve for quickly discharging oil Takashi Yagyu, Kimio Katsuki 1992-01-21