Inventor · disambiguated record
Masao Sakuyama
Also filed as: SAKUYAMA MASAO
7 granted patents·106 citations·filing 1982–2003
84Inventor score
Top patents by PatentIndex Score
7 records- 0192US6490230B1Electronic watch with meter function and display meansCITIZEN WATCH CO LTD·Filed 1992·Granted Dec 3, 2002·65 cites·30 claims
- 0281US6483781B2Electronic watch and drive method thereforCITIZEN WATCH CO LTD·Filed 2001·Granted Nov 19, 2002·24 cites·32 claims
- 0354US6876602B2Electronic timepiece, information processing device, method of displaying charged condition of secondary cell, and computer productCITIZEN WATCH CO LTD·Filed 2003·Granted Apr 5, 2005·4 cites·14 claims
- 0450US7408845B2Radio corrected clockCITIZEN HOLDINGS CO LTD·Filed 2002·Granted Aug 5, 2008·2 cites·7 claims
- 0542US6754138B2Data transmission/reception system for electronic timepiecesCITIZEN WATCH CO LTD·Filed 2002·Granted Jun 22, 2004·0 cites·21 claims
- 0640US6522601B2Data transmission/reception system for electronic timepiecesCITIZEN WATCH CO LTD·Filed 1997·Granted Feb 18, 2003·8 cites·5 claims
- 0730US4516120ADisplay deviceCITIZEN WATCH CO LTD·Filed 1982·Granted May 7, 1985·3 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →