Inventor

HIROTSU TETSUJI

JP3 patents

Patents

3 patents

US4799161AJan 17, 1989

Control apparatus for maintaining traction in electric rolling stock

HITACHI LTD56 citations90

US4701682AOct 20, 1987

Control system for maintaining traction of rolling stock

HITACHI LTD53 citations90

US4776283AOct 11, 1988

Truck for railway vehicle

HITACHI LTD22 citations75