YH

Yoshinao Haraoka

KS Komatsu Shisakusho: 2 patents #235 of 885Top 30%
KO Komatsu: 1 patents #1,163 of 2,087Top 60%
Overall (All Time): #1,637,312 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5713144 Linear excavation control apparatus for a hydraulic power shovel 1998-02-03
5520087 Control device for hydraulically operated machine Fujitoshi Takamura 1996-05-28
5481875 Apparatus for changing and controlling volume of hydraulic oil in hydraulic excavator Fujitoshi Takamura 1996-01-09