Inventor
KUME KAZUNARI
24 patents
Patents
24 patentsUS4183629AJan 15, 1980
Electronic optical display device and method of manufacturing the same
CITIZEN WATCH CO LTD46 citations92
US3998043ADec 21, 1976
Electric timepiece for displaying the operating condition thereof
CITIZEN WATCH CO LTD50 citations92
US4196577AApr 8, 1980
Electronic timepiece
CITIZEN WATCH CO LTD40 citations90
US4232510ANov 11, 1980
Timepiece
CITIZEN WATCH CO LTD22 citations82
US3992868ANov 23, 1976
Timepiece with calendar mechanism
CITIZEN WATCH CO LTD20 citations81
US4194351AMar 25, 1980
Electronic timepiece
CITIZEN WATCH CO LTD10 citations74
US4492479AJan 8, 1985
Small electronic timers
CITIZEN WATCH CO LTD16 citations73
US4297838ANov 3, 1981
Electronic timepiece
CITIZEN WATCH CO LTD10 citations73
US4290131ASep 15, 1981
Electronic timepiece
CITIZEN WATCH CO LTD10 citations73
US4274153AJun 16, 1981
Movement construction for electronic timepiece
CITIZEN WATCH CO LTD16 citations73
US4175372ANov 27, 1979
Electronic timepiece
CITIZEN WATCH CO LTD8 citations73
US4092820AJun 6, 1978
Electronic timepiece
CITIZEN WATCH CO LTD14 citations73
US4079582AMar 21, 1978
Electronic timepiece
CITIZEN WATCH CO LTD16 citations73
US4058969ANov 22, 1977
Electric timepiece for displaying the operating condition thereof
CITIZEN WATCH CO LTD8 citations73
US4026100AMay 31, 1977
Timepiece with calendar mechanism
CITIZEN WATCH CO LTD15 citations73
US4006585AFeb 8, 1977
Electronic timepiece with electrochromic display element
CITIZEN WATCH CO LTD15 citations73
US4407590AOct 4, 1983
Battery unit for an electric timepiece
CITIZEN WATCH CO LTD12 citations72
US4750063AJun 7, 1988
Floppy disk drive having a pivotally supporting cartridge carrier
CITIZEN WATCH CO LTD17 citations70
US4312057AJan 19, 1982
Electronic timepiece providing audible and visible time indications
CITIZEN WATCH CO LTD5 citations63
US4262349AApr 14, 1981
System for signalling the termination of the lifetime of a battery for electronic timepieces
CITIZEN WATCH CO LTD4 citations63
US4336609AJun 22, 1982
Digital input means for miniature type electronic devices
CITIZEN WATCH CO LTD6 citations60
US4199699AApr 22, 1980
Motor and drive for a timepiece
CITIZEN WATCH CO LTD1 citations52
US4669010AMay 26, 1987
Floppy disk drive
CITIZEN WATCH CO LTD0 citations42
US4209970AJul 1, 1980
Electronic timepiece
CITIZEN WATCH CO LTD0 citations41