Inventor

KAKUMOTO HIROMI

5 patents

Patents

5 patents

US4422032ADec 20, 1983

Battery charging circuit for maintaining a substantially constant average value of charging current despite variations in charging voltage

MATSUSHITA ELECTRIC WORKS LTD32 citations91

US4370606AJan 25, 1983

Charging apparatus

MATSUSHITA ELECTRIC WORKS LTD46 citations91

US4509259AApr 9, 1985

Electric shaver

MATSUSHITA ELECTRIC WORKS LTD16 citations80

US4426776AJan 24, 1984

Electric shaver

MATSUSHITA ELECTRIC WORKS LTD26 citations80

US4284944AAug 18, 1981

Battery charging device having battery state indicating function

MATSUSHITA ELECTRIC WORKS LTD26 citations80