Inventor · disambiguated record

Sumiyo Ejima

Also filed as: EJIMA SUMIYO

2 granted patents·0 citations·filing 2005–2011

22Inventor score

Technology areasG11B

Files withEJIMA SUMIYO1 SONY CORP1

Top patents by PatentIndex Score

2 records

0142US7564752B2Disc signal evaluation apparatus and disc signal evaluation methodSONY CORP·Filed 2005·Granted Jul 21, 2009·0 cites·7 claims
0219US8712223B2Authoring method, authoring device and programEJIMA SUMIYO·Filed 2011·Granted Apr 29, 2014·0 cites·19 claims

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →