Inventor

KOYAMA KAZUTAKA

JP5 patents

Patents

5 patents

US5365152ANov 15, 1994

Apparatus for controlling the power to a discharge-lamp

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD46 citations91

US4370601AJan 25, 1983

High pressure discharge lamp apparatus

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD22 citations80

US4378513AMar 29, 1983

High pressure discharge lamp apparatus

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD7 citations71

US4600862AJul 15, 1986

Discharge lamp operation apparatus

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD2 citations61

US5466988ANov 14, 1995

High pressure discharge lamp having improved convection regulating means

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD5 citations60