Inventor

HIRAO YOSHIAKI

JP10 patents

Patents

10 patents

US4591736AMay 27, 1986

Pulse signal amplitude storage-holding apparatus

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD115 citations95

US4991944AFeb 12, 1991

Zoom lens driving apparatus

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD26 citations92

US4924317AMay 8, 1990

Video camera with an automatic focusing system

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD26 citations92

US4621292ANov 4, 1986

Automatic focusing device for a video camera

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD29 citations92

US4673274AJun 16, 1987

Automatic focusing apparatus for camera

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD26 citations91

US4975726ADec 4, 1990

Automatic focusing apparatus

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD22 citations79

US5077613ADec 31, 1991

Video camera with automatic focusing function

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD14 citations73

US4850692AJul 25, 1989

Semiconductor light position detector for rangefinder

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD9 citations71

US4849813AJul 18, 1989

Video camera with high-speed scanning

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD7 citations71

US4758764AJul 19, 1988

Light-emitting device for automatic focus adjustment apparatus

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD2 citations62