YA

Yoshimichi Akasaka

HI Hitachi: 3 patents #10,712 of 28,497Top 40%
HC Hitachi Construction Machinery Co.: 3 patents #381 of 1,234Top 35%
Overall (All Time): #891,613 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
5231912 Bent axis type variable displacement hydraulic machine Ichiro Nakamura, Yasuharu Gotoh 1993-08-03
5182978 Bent axis type variable displacement hydraulic machine Ichiro Nakamura, Yasuharu Gotoh 1993-02-02
5094144 Bent axis type variable displacement hydraulic machine Ichiro Nakamura, Yasuharu Gotoh 1992-03-10
4788902 Thrust hydrostatic bearing device for use in axial piston machine Ichiro Nakamura, Ken Ichiryu, Eiji Kometani, Yasuharu Gotoh 1988-12-06
4428559 Direct drive type servo valve Ken Ichiryu, Haruo Watanabe, Ichiro Nakamura 1984-01-31
4404892 Hydraulic operating apparatus Ichiro Nakamura, Mitsuaki Takenoshita, Ken Ichiryu, Haruo Watanabe 1983-09-20