Inventor

OCHIAI HAJIME

JP4 patents

Patents

4 patents

US4878049AOct 31, 1989

Information transmission system for railway vehicles

MITSUBISHI ELECTRIC CORP21 citations79

US4682144AJul 21, 1987

Light transmission system for trains

MITSUBISHI ELECTRIC CORP15 citations71

US4656586AApr 7, 1987

Automatic vehicle testing apparatus

MITSUBISHI ELECTRIC CORP10 citations69

US4688266AAug 18, 1987

Car data transmission device for optical fibers

MITSUBISHI ELECTRIC CORP2 citations60