Inventor · disambiguated record
Ryuichi Izumi
Also filed as: IZUMI RYUICHI
8 granted patents·27 citations·filing 2005–2021
81Inventor score
Top patents by PatentIndex Score
8 records- 0179US7078611B2Keyboard instrumentYAMAHA CORP·Filed 2005·Granted Jul 18, 2006·14 cites·12 claims
- 0261US8562162B2Display device and manipulation device with light displayNATSUME YOSHIHIRO·Filed 2009·Granted Oct 22, 2013·5 cites·1 claims
- 0361US8498437B2Panel opening and closing structure of electric operation apparatusANDO TAKESHI·Filed 2009·Granted Jul 30, 2013·2 cites·7 claims
- 0457US8213642B2Slide manipulation device and slide control consoleNATSUME YOSHIHIRO·Filed 2009·Granted Jul 3, 2012·2 cites·9 claims
- 0554US11599135B2Rotation operation deviceYAMAHA CORP·Filed 2021·Granted Mar 7, 2023·0 cites·7 claims
- 0653US7875819B2Panel operator structure for electronic equipmentYAMAHA CORP·Filed 2007·Granted Jan 25, 2011·2 cites·7 claims
- 0753US7396994B2Electronic keyboard instrumentYAMAHA CORP·Filed 2005·Granted Jul 8, 2008·2 cites·18 claims
- 0850US9761391B2Rotary knobYAMAHA CORP·Filed 2014·Granted Sep 12, 2017·0 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →