Inventor · disambiguated record
Hirofumi Onitsuka
Also filed as: ONITSUKA HIROFUMI
21 granted patents·1 pending application·64 citations·filing 2003–2019
93Inventor score
Top patents by PatentIndex Score
22 records- 0183US7095865B2Audio amplifier unitYAMAHA CORP·Filed 2003·Granted Aug 22, 2006·30 cites·9 claims
- 0280US8731224B2Acoustic structure including helmholtz resonatorSHIOZAWA YASUO·Filed 2011·Granted May 20, 2014·8 cites·12 claims
- 0375US11240592B2Bass reflex port and acoustic deviceYAMAHA CORP·Filed 2019·Granted Feb 1, 2022·2 cites·20 claims
- 0475US9473847B2Acoustic apparatusYAMAHA CORP·Filed 2014·Granted Oct 18, 2016·4 cites·14 claims
- 0573US8678130B2Audio apparatusSHIOZAWA YASUO·Filed 2012·Granted Mar 25, 2014·4 cites·7 claims
- 0668US10750273B2Bass reflex port and bass reflex type speakerYAMAHA CORP·Filed 2018·Granted Aug 18, 2020·1 cites·8 claims
- 0767US9241211B2Tubular body, bass reflex port, and acoustic apparatusYAMAHA CORP·Filed 2014·Granted Jan 19, 2016·2 cites·16 claims
- 0861US9232300B2Bass reflex port and tubular bodyYAMAHA CORP·Filed 2014·Granted Jan 5, 2016·1 cites·16 claims
- 0959US9275612B2Keyboard instrumentYAMAHA CORP·Filed 2015·Granted Mar 1, 2016·1 cites·13 claims
- 1056US9224380B2Audio device, and methods for designing and making the audio devicesSHIOZAWA YASUO·Filed 2011·Granted Dec 29, 2015·2 cites·13 claims
- 1154US9407983B2Microphone deviceYAMAHA CORP·Filed 2013·Granted Aug 2, 2016·1 cites·2 claims
- 1246USD750599SPort for audio equipmentYAMAHA CORP·Filed 2015·Granted Mar 1, 2016·2 cites·1 claims
- 1345US2015110325A1Speaker and Speaker NetYAMAHA CORP·Filed 2014·Application pending·0 cites
- 1443US10045119B2Acoustic structure and acoustic panelYAMAHA CORP·Filed 2016·Granted Aug 7, 2018·0 cites·16 claims
- 1543US9479851B2Vehicle sound generation apparatus, and vehicle sound generation methodYAMAHA MOTOR CO LTD·Filed 2013·Granted Oct 25, 2016·0 cites·17 claims
- 1642USD745492SPort for audio equipmentYAMAHA CORP·Filed 2013·Granted Dec 15, 2015·2 cites·1 claims
- 1739USD752560SPort for audio equipmentYAMAHA CORP·Filed 2015·Granted Mar 29, 2016·1 cites·1 claims
- 1839USD752559SPort for audio equipmentYAMAHA CORP·Filed 2015·Granted Mar 29, 2016·1 cites·1 claims
- 1939USD752561SPort for audio equipmentYAMAHA CORP·Filed 2015·Granted Mar 29, 2016·1 cites·1 claims
- 2039USD750048SPort for audio equipmentYAMAHA CORP·Filed 2015·Granted Feb 23, 2016·1 cites·1 claims
- 2139US8321043B2Simulation apparatus and programONITSUKA HIROFUMI·Filed 2008·Granted Nov 27, 2012·0 cites·18 claims
- 2230US9327644B2Sound generating device for vehicle, and sound generating method for vehicleOSAWA HIDEKI·Filed 2012·Granted May 3, 2016·0 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →