Inventor
OSUGA ICHIRO
JP50 patents
⚠️ This page may combine multiple inventors who share the name “OSUGA ICHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
YAMAHA CORP
49 patentsUS7750222B2Jul 6, 2010
Keyboard apparatus of electronic musical instrument
YAMAHA CORP26 citations92
US5895875AApr 20, 1999
Keyboard assembly for electronic musical instrument
YAMAHA CORP27 citations92
US7176370B2Feb 13, 2007
Key structure and keyboard apparatus
YAMAHA CORP19 citations91
US7767892B2Aug 3, 2010
Keyboard apparatus for electronic musical instrument
YAMAHA CORP9 citations84
US7709718B2May 4, 2010
Electronic musical instrument keyboard apparatus
YAMAHA CORP9 citations84
US6005178ADec 21, 1999
Electronic musical instrument simulating acoustic piano keytouch characteristics
YAMAHA CORP17 citations84
US10482861B2Nov 19, 2019
Reaction force generator and keyboard device of electronic musical instrument
YAMAHA CORP7 citations83
US9269336B2Feb 23, 2016
Operating element device
YAMAHA CORP9 citations83
US7541532B2Jun 2, 2009
Key structure and keyboard apparatus
YAMAHA CORP10 citations83
US5300727AApr 5, 1994
Electrical musical instrument having a tone color searching function
YAMAHA CORP18 citations74
US10984761B2Apr 20, 2021
Key assembly and keyboard apparatus
YAMAHA CORP2 citations73
US10311847B2Jun 4, 2019
Keyboard apparatus
YAMAHA CORP6 citations73
US8987570B2Mar 24, 2015
Keyboard device for electronic musical instrument
YAMAHA CORP5 citations73
US9613608B2Apr 4, 2017
Keyboard unit
YAMAHA CORP3 citations72
US9424825B2Aug 23, 2016
Keyboard apparatus for an electronic musical instrument
YAMAHA CORP4 citations72
US9040807B2May 26, 2015
Keyboard apparatus for an electronic musical instrument
YAMAHA CORP6 citations72
US9697816B2Jul 4, 2017
Keyboard unit
YAMAHA CORP3 citations69
US9613607B2Apr 4, 2017
Keyboard unit
YAMAHA CORP3 citations69
US7858863B2Dec 28, 2010
Electronic musical instrument keyboard apparatus
YAMAHA CORP4 citations63
US7772474B2Aug 10, 2010
Keyboard device with an anti-floating part for electronic musical instrument
YAMAHA CORP3 citations63
US7709719B2May 4, 2010
Keyboard apparatus for electronic musical instrument
YAMAHA CORP2 citations63
US6660920B2Dec 9, 2003
Music operator with tension string for sensing action input
YAMAHA CORP4 citations63
US11100908B2Aug 24, 2021
Keyboard and keyboard component
YAMAHA CORP0 citations62
US9489006B2Nov 8, 2016
Reaction force generator
YAMAHA CORP2 citations62
US8809659B2Aug 19, 2014
Keyboard device for electronic musical instrument
YAMAHA CORP2 citations62
US8809658B2Aug 19, 2014
Keyboard device for electronic musical instrument
YAMAHA CORP3 citations62
US8809660B2Aug 19, 2014
Keyboard device for electronic musical instrument
YAMAHA CORP2 citations62
US8802952B2Aug 12, 2014
Keyboard device for electronic musical instrument
YAMAHA CORP2 citations62
US11326660B2May 10, 2022
Reaction force generation unit
YAMAHA CORP0 citations61
US10984760B2Apr 20, 2021
Musical instrument and vibrator
YAMAHA CORP0 citations61
US10891923B2Jan 12, 2021
Vibrator and musical instrument
YAMAHA CORP1 citations61
US10431403B2Oct 1, 2019
Reactive force generation device
YAMAHA CORP1 citations61
US10311846B2Jun 4, 2019
Keyboard musical instrument and method of acquiring correction information in keyboard musical instrument
YAMAHA CORP1 citations61
US10311836B2Jun 4, 2019
Support assembly and keyboard apparatus
YAMAHA CORP1 citations61
US7952011B2May 31, 2011
Key and keyboard apparatus
YAMAHA CORP2 citations61
US7652207B2Jan 26, 2010
Key structure and keyboard apparatus
YAMAHA CORP4 citations61
US12183312B2Dec 31, 2024
Vibration plate and musical instrument
YAMAHA CORP1 citations59
US12536982B2Jan 27, 2026
Sound bar and percussion instrument
YAMAHA CORP0 citations54
US12444392B2Oct 14, 2025
Tone plate and percussion instrument
YAMAHA CORP0 citations54
US12305685B2May 20, 2025
Fastening structure and keyboard device
YAMAHA CORP0 citations54
US11767873B2Sep 26, 2023
Fastening structure and keyboard device
YAMAHA CORP0 citations54
US7696424B2Apr 13, 2010
Keyboard apparatus of electronic musical instrument
YAMAHA CORP6 citations54
US10685631B2Jun 16, 2020
Keyboard apparatus
YAMAHA CORP0 citations52
US8637755B2Jan 28, 2014
Keyboard device for electronic musical instrument
YAMAHA CORP1 citations52
US9659549B2May 23, 2017
Support assembly and keyboard apparatus
YAMAHA CORP0 citations51
US7268285B2Sep 11, 2007
Key structure and keyboard apparatus
YAMAHA CORP0 citations51
US7897860B2Mar 1, 2011
Keyboard apparatus
YAMAHA CORP0 citations40
US7265288B2Sep 4, 2007
Key structure
YAMAHA CORP0 citations40
US9767779B2Sep 19, 2017
Operator device for electronic musical instrument
YAMAHA CORP0 citations39