Inventor · disambiguated record
Keiichi Fukatsu
Also filed as: FUKATSU KEIICHI
4 granted patents·1 pending application·8 citations·filing 2010–2018
65Inventor score
Top patents by PatentIndex Score
5 records- 0169US8439158B2Acoustic resonator and sound chamberTANASE RENTO·Filed 2010·Granted May 14, 2013·4 cites·28 claims
- 0267US9099075B2Standing wave attenuation deviceSEKINE SATOSHI·Filed 2011·Granted Aug 4, 2015·3 cites·4 claims
- 0350US10424275B2Upright pianoYAMAHA CORP·Filed 2018·Granted Sep 24, 2019·0 cites·9 claims
- 0441US8901404B2Sound adjusting system and electronic musical instrumentISHIMURA FUSAKO·Filed 2012·Granted Dec 2, 2014·1 cites·10 claims
- 0538US2011056763A1Acoustic resonance deviceYAMAHA CORP·Filed 2010·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →