Inventor
KOMATSU AKIHIKO
JP39 patents
⚠️ This page may combine multiple inventors who share the name “KOMATSU AKIHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
YAMAHA CORP
19 patentsUS8013233B2Sep 6, 2011
Keyboard apparatus
YAMAHA CORP8 citations84
US7943843B2May 17, 2011
Reactive force control apparatus for pedal of electronic keyboard instrument
YAMAHA CORP14 citations84
US8383920B2Feb 26, 2013
Keyboard apparatus
YAMAHA CORP10 citations83
US7402738B2Jul 22, 2008
Wind musical instrument equipped with slide and supporting system for assisting player in performance
YAMAHA CORP8 citations73
US10937403B2Mar 2, 2021
Signal supply device, keyboard device and non-transitory computer-readable storage medium
YAMAHA CORP4 citations72
US10902830B2Jan 26, 2021
Signal supply device, keyboard device and non-transitory computer-readable storage medium
YAMAHA CORP6 citations72
US8889975B2Nov 18, 2014
Keyboard apparatus
YAMAHA CORP4 citations72
US7919708B2Apr 5, 2011
Electronic musical instrument
YAMAHA CORP5 citations63
US11551653B2Jan 10, 2023
Electronic musical instrument
YAMAHA CORP0 citations62
US8648236B2Feb 11, 2014
Keyboard apparatus
YAMAHA CORP2 citations62
US7786372B2Aug 31, 2010
Wind musical instrument with pitch changing mechanism and supporting system for pitch change
YAMAHA CORP4 citations62
US7777115B2Aug 17, 2010
Keyboard musical instrument
YAMAHA CORP6 citations62
US7385134B2Jun 10, 2008
Wind musical instrument having pads for closing tone holes with mechanical assistance and supporting system used therein
YAMAHA CORP5 citations62
US7935875B2May 3, 2011
Key actuating apparatus
YAMAHA CORP0 citations52
US7858864B2Dec 28, 2010
Key actuating apparatus
YAMAHA CORP0 citations52
US7605319B2Oct 20, 2009
Keyboard apparatus
YAMAHA CORP1 citations52
US11961499B2Apr 16, 2024
Sound signal generation device, keyboard instrument and sound signal generation method
YAMAHA CORP0 citations51
US11694665B2Jul 4, 2023
Sound source, keyboard musical instrument, and method for generating sound signal
YAMAHA CORP0 citations51
US11138961B2Oct 5, 2021
Sound output device and non-transitory computer-readable storage medium
YAMAHA CORP0 citations51
RUBYCON CORP
15 patentsUS6882519B2Apr 19, 2005
Flat aluminum electrolytic capacitor and method of manufacturing the same
RUBYCON CORP51 citations92
US6349028B1Feb 19, 2002
Electrolytic capacitor
RUBYCON CORP30 citations92
US6288889B1Sep 11, 2001
Electrolytic solution for electrolytic capacitor and electrolytic capacitor using the same
RUBYCON CORP27 citations91
US6285543B1Sep 4, 2001
Electrolytic solution for use in electrolytic capacitor and electrolytic capacitor
RUBYCON CORP25 citations91
US6919240B2Jul 19, 2005
Flat aluminum electrolytic capacitor and method of manufacturing the same
RUBYCON CORP18 citations89
US7279117B2Oct 9, 2007
Electrolytic capacitor and electrolyte solution for use in an electrolytic capacitor
RUBYCON CORP13 citations82
US7667953B2Feb 23, 2010
Electrolytic capacitor
RUBYCON CORP4 citations61
US7660101B2Feb 9, 2010
Electrolytic capacitor and electrolyte solution for use in an electrolytic capacitor
RUBYCON CORP3 citations60
US7539006B2May 26, 2009
Electrolytic solution for driving electrolytic capacitor and electrolytic capacitor
RUBYCON CORP2 citations51
US9978527B2May 22, 2018
Solid Electrolytic capacitor and manufacturing method thereof
RUBYCON CORP0 citations39
US12463298B2Nov 4, 2025
Electrical storage device
RUBYCON CORP0 citations38
US10210997B2Feb 19, 2019
Solid electrolytic capacitor and manufacturing method thereof
RUBYCON CORP0 citations38
US9799456B2Oct 24, 2017
Solid electrolyte capacitor
RUBYCON CORP0 citations34
US9786439B2Oct 10, 2017
Solid electrolyte capacitor and housing for solid electrolyte capacitor
RUBYCON CORP0 citations34
US9576742B2Feb 21, 2017
Solid electrolyte capacitor and manufacturing method for same
RUBYCON CORP0 citations32
KOMATSU AKIHIKO
3 patentsUS8138402B2Mar 20, 2012
Keyboard musical instrument and solenoid drive mechanism
KOMATSU AKIHIKO6 citations71
US8288643B2Oct 16, 2012
Pedal control apparatus of electronic keyboard musical instrument
KOMATSU AKIHIKO2 citations60
US8653353B2Feb 18, 2014
Electronic keyboard musical instrument
KOMATSU AKIHIKO0 citations39