Inventor
KITAJIMA YASUO
JP14 patents
⚠️ This page may combine multiple inventors who share the name “KITAJIMA YASUO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CITIZEN WATCH CO LTD
12 patentsUS6278661B1Aug 21, 2001
Electronic timepiece with calendar month-end non-correction device
CITIZEN WATCH CO LTD17 citations91
US5966344AOct 12, 1999
Watch containing light transmitting metallic dial
CITIZEN WATCH CO LTD28 citations90
US5703837ADec 30, 1997
Watch with light transmitting type display plate
CITIZEN WATCH CO LTD34 citations90
US6385136B2May 7, 2002
Electronic timepiece with calendar month-end non-correction device
CITIZEN WATCH CO LTD11 citations72
US6477114B1Nov 5, 2002
Electronic timepiece with calendar device
CITIZEN WATCH CO LTD4 citations61
US6240052B1May 29, 2001
Electronic watch with calendar
CITIZEN WATCH CO LTD5 citations61
US10579019B2Mar 3, 2020
Watch
CITIZEN WATCH CO LTD1 citations59
US5898646AApr 27, 1999
Watch with extended dial
CITIZEN WATCH CO LTD5 citations59
US5592443AJan 7, 1997
Structure of a watch and assembling method thereof
CITIZEN WATCH CO LTD5 citations59
US11101748B2Aug 24, 2021
Method of manufacturing an electrostatic induction transducer, electrostatic induction transducer, and wristwatch
CITIZEN WATCH CO LTD0 citations51
US11567454B2Jan 31, 2023
Electromechanical transducer and electronic timepiece
CITIZEN WATCH CO LTD0 citations48
US11650548B2May 16, 2023
Timepiece
CITIZEN WATCH CO LTD0 citations41