Inventor
OONO HIDESHI
7 patents
Patents
7 patentsUS3998043ADec 21, 1976
Electric timepiece for displaying the operating condition thereof
CITIZEN WATCH CO LTD50 citations92
US4232510ANov 11, 1980
Timepiece
CITIZEN WATCH CO LTD22 citations82
US3992868ANov 23, 1976
Timepiece with calendar mechanism
CITIZEN WATCH CO LTD20 citations81
US4092820AJun 6, 1978
Electronic timepiece
CITIZEN WATCH CO LTD14 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
US4209970AJul 1, 1980
Electronic timepiece
CITIZEN WATCH CO LTD0 citations41