Inventor
OKAMURA SUNAO
JP18 patents
⚠️ This page may combine multiple inventors who share the name “OKAMURA SUNAO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
YAMAHA CORP
17 patentsUSD538259SMar 13, 2007
Combined speaker and amplifier
YAMAHA CORP48 citations95
USD510381SOct 4, 2005
Electronic keyboard instrument
YAMAHA CORP21 citations92
USD419587SJan 25, 2000
Electric cello
YAMAHA CORP17 citations92
USD589929SApr 7, 2009
Combined speaker and amplifier
YAMAHA CORP19 citations91
USD520494SMay 9, 2006
Speaker
YAMAHA CORP37 citations91
USD718808SDec 2, 2014
Digital piano
YAMAHA CORP11 citations83
USD579441SOct 28, 2008
Combined speaker and amplifier
YAMAHA CORP14 citations83
USD718809SDec 2, 2014
Digital piano
YAMAHA CORP8 citations79
USD718375SNov 25, 2014
Digital piano
YAMAHA CORP9 citations79
USD507291SJul 12, 2005
Electronic keyboard instrument
YAMAHA CORP6 citations73
USD411563SJun 29, 1999
Electronic keyboard musical instrument
YAMAHA CORP12 citations73
USD369378SApr 30, 1996
Electronic piano
YAMAHA CORP15 citations73
USD903625SDec 1, 2020
Amplifier
YAMAHA CORP5 citations72
USD933629SOct 19, 2021
Amplifier
YAMAHA CORP1 citations62
USD499442SDec 7, 2004
Electronic keyboard instrument
YAMAHA CORP2 citations62
USD579914SNov 4, 2008
Combined speaker and amplifier
YAMAHA CORP4 citations61
USD474801SMay 20, 2003
Piano
YAMAHA CORP0 citations51