Inventor

YAMANAKA HARUYOSHI

3 patents

Patents

3 patents

US4339689AJul 13, 1982

Light emitting diode and method of making the same

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD48 citations88

US4080245AMar 21, 1978

Process for manufacturing a gallium phosphide electroluminescent device

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD29 citations78

US4338877AJul 13, 1982

Apparatus for making semiconductor devices

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD3 citations58