Inventor

YOSHIKAWA HISAO

JP3 patents

Patents

3 patents

US3988621AOct 26, 1976

Supporting structure for a thickness-shear type quartz oscillator

CITIZEN WATCH CO LTD10 citations71

US4536993AAug 27, 1985

Grinding machine

CITIZEN WATCH CO LTD13 citations70

US4481742ANov 13, 1984

Machine tool elevating and guiding apparatus

CITIZEN WATCH CO LTD20 citations70