Inventor
NISHIKUBO YASUHIKO
JP15 patents
⚠️ This page may combine multiple inventors who share the name “NISHIKUBO YASUHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CITIZEN WATCH CO LTD
14 patentsUS3938316AFeb 17, 1976
Temperature compensated electronic timepiece
CITIZEN WATCH CO LTD51 citations92
US4549818AOct 29, 1985
Temperature detector
CITIZEN WATCH CO LTD28 citations91
US4430008AFeb 7, 1984
Quartz oscillation-type electronic timepiece
CITIZEN WATCH CO LTD8 citations72
US3939643AFeb 24, 1976
Crystal-controlled electronic timepiece with CMOS switching and frequency-dividing circuits
CITIZEN WATCH CO LTD7 citations72
US3999370ADec 28, 1976
Temperature compensated electronic timepiece
CITIZEN WATCH CO LTD15 citations68
US4293939AOct 6, 1981
Electronic timepiece having an alarm system
CITIZEN WATCH CO LTD4 citations62
US4280210AJul 21, 1981
Electronic alarm timepiece
CITIZEN WATCH CO LTD3 citations62
US4094139AJun 13, 1978
Display control circuit for electronic timepiece
CITIZEN WATCH CO LTD4 citations62
US4388001AJun 14, 1983
Electronic timepiece
CITIZEN WATCH CO LTD2 citations61
US4333171AJun 1, 1982
Electronic timepiece with diffusion resistor for compensating threshold variations
CITIZEN WATCH CO LTD3 citations61
US4326277AApr 20, 1982
Electronic timepiece
CITIZEN WATCH CO LTD2 citations61
US4296490AOct 20, 1981
Crystal oscillation-type electronic timepiece
CITIZEN WATCH CO LTD1 citations51
US4320479AMar 16, 1982
Analogue electronic timepiece with an alarm device
CITIZEN WATCH CO LTD0 citations41
US4006584AFeb 8, 1977
Electronic timepiece
CITIZEN WATCH CO LTD0 citations41