Inventor · disambiguated record
Hisashi Takeyama
Also filed as: TAKEYAMA HISASHI
8 granted patents·26 citations·filing 2009–2013
82Inventor score
Top patents by PatentIndex Score
8 records- 0183US8389833B2Upright piano type actionMURAMATSU SHIGERU·Filed 2011·Granted Mar 5, 2013·8 cites·10 claims
- 0280US8294009B2Upright piano type actionMURAMATSU SHIGERU·Filed 2011·Granted Oct 23, 2012·6 cites·6 claims
- 0377US8889975B2Keyboard apparatusYAMAHA CORP·Filed 2013·Granted Nov 18, 2014·4 cites·8 claims
- 0472US8558095B2Keyboard apparatusMURAMATSU SHIGERU·Filed 2011·Granted Oct 15, 2013·3 cites·6 claims
- 0569US8648236B2Keyboard apparatusYAMAHA CORP·Filed 2013·Granted Feb 11, 2014·2 cites·9 claims
- 0660US7893334B2Pedal apparatus of electronic musical instrumentYAMAHA CORP·Filed 2009·Granted Feb 22, 2011·3 cites·7 claims
- 0741US8779256B2Keyboard apparatusMURAMATSU SHIGERU·Filed 2011·Granted Jul 15, 2014·0 cites·6 claims
- 0835US8222509B2Pedal device of electronic keyboard musical instrumentMURAMATSU SHIGERU·Filed 2010·Granted Jul 17, 2012·0 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →