Inventor

AOZUKA TORAO

JP3 patents

Patents

3 patents

US4630826ADec 23, 1986

Golf club head

SONY CORP78 citations94

US4069436AJan 17, 1978

Flat thermionic cathode

SONY CORP9 citations72

US4053807AOct 11, 1977

Thermionic cathode and heater structure on ceramic base plate

SONY CORP18 citations71