Inventor

INOKAWA TSUNEO

3 patents

Patents

3 patents

US4198917AApr 22, 1980

Ice-breaking means for ships

MITSUI SHIPBUILDING ENG26 citations77

US4152999AMay 8, 1979

Ice-breaking apparatus for ships and barges for operation on icy waters

MITSUI SHIPBUILDING ENG13 citations71

US4230423AOct 28, 1980

Ice-breaking apparatus for structure for use in icy waters

MITSUI SHIPBUILDING ENG12 citations69