Inventor
TAKAKUWA ERIKO
JP4 patents
Patents
4 patentsUS6088300AJul 11, 2000
Calendar electronic timepiece
SEIKO INSTR INC23 citations91
US6582118B1Jun 24, 2003
Electronic timepiece having transmission wheel rotational position detecting apparatus
SEIKO INSTR INC7 citations72
US6584040B1Jun 24, 2003
Electronic timepiece
SEIKO INSTR INC9 citations72
US6088302AJul 11, 2000
Electronic timepiece
SEIKO INSTR INC7 citations72