Inventor
SAKUYAMA MASAO
JP7 patents
⚠️ This page may combine multiple inventors who share the name “SAKUYAMA MASAO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CITIZEN WATCH CO LTD
6 patentsUS6490230B1Dec 3, 2002
Electronic watch with meter function and display means
CITIZEN WATCH CO LTD65 citations95
US6483781B2Nov 19, 2002
Electronic watch and drive method therefor
CITIZEN WATCH CO LTD24 citations91
US6522601B2Feb 18, 2003
Data transmission/reception system for electronic timepieces
CITIZEN WATCH CO LTD8 citations71
US6876602B2Apr 5, 2005
Electronic timepiece, information processing device, method of displaying charged condition of secondary cell, and computer product
CITIZEN WATCH CO LTD4 citations60
US4516120AMay 7, 1985
Display device
CITIZEN WATCH CO LTD3 citations60
US6754138B2Jun 22, 2004
Data transmission/reception system for electronic timepieces
CITIZEN WATCH CO LTD0 citations49