Inventor · disambiguated record
Yutaka Toyama
Also filed as: TOYAMA YUTAKA
4 granted patents·18 citations·filing 2003–2007
71Inventor score
Files withYAMAHA CORP4
Top patents by PatentIndex Score
4 records- 0169US7544876B2Keyboard apparatus of electronic keyboard instrumentYAMAHA CORP·Filed 2007·Granted Jun 9, 2009·6 cites·3 claims
- 0269US7476795B2Keyboard device for electronic musical keyboard instrumentYAMAHA CORP·Filed 2007·Granted Jan 13, 2009·6 cites·8 claims
- 0352US6980432B2Electronic apparatusYAMAHA CORP·Filed 2003·Granted Dec 27, 2005·5 cites·8 claims
- 0447US7678981B2Keyboard structure of electronic keyboard instrumentYAMAHA CORP·Filed 2007·Granted Mar 16, 2010·1 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →