KK

Kouki Koyanagi

HL Hitachi Shipbuilding & Engineering Company Limited: 1 patents #37 of 117Top 35%
📍 Oto, JP: #1 of 1 inventorsTop 100%
Overall (All Time): #4,029,520 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4431343 Leg clamping device for jack up platform Tomoyoshi Uchiyama, Youichi Hattori, Toshio Ohkoshi, Takaaki Ishihama, Kouji Toda 1984-02-14