Inventor · disambiguated record

Tatsuo Sumida

Also filed as: SUMIDA TATSUO

2 granted patents·6 citations·filing 2008–2011

44Inventor score

Technology areasG04D H01Q

Files withCITIZEN HOLDINGS CO LTD1 SUMIDA TATSUO1

Top patents by PatentIndex Score

2 records

0165US8345514B2Radio-controlled timepiece and method of assembling the sameCITIZEN HOLDINGS CO LTD·Filed 2008·Granted Jan 1, 2013·6 cites·20 claims
0228US9010997B2Electronic timepieceSUMIDA TATSUO·Filed 2011·Granted Apr 21, 2015·0 cites·4 claims

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