Inventor
HISHIDA HIROSHI
JP7 patents
⚠️ This page may combine multiple inventors who share the name “HISHIDA HIROSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CITIZEN WATCH CO LTD
4 patentsUS5220925AJun 22, 1993
Electronic sphygmomanometer
CITIZEN WATCH CO LTD54 citations90
US4234811ANov 18, 1980
Supporting structure for a thickness-shear type crystal oscillator for watches
CITIZEN WATCH CO LTD16 citations72
US3988621AOct 26, 1976
Supporting structure for a thickness-shear type quartz oscillator
CITIZEN WATCH CO LTD10 citations71
US4079281AMar 14, 1978
Shape, AT-cut crystal oscillator
CITIZEN WATCH CO LTD3 citations61