18 Utility Patents
#261 in Hamamatsu
#42,164 in Japan
#195,919 in the World
Forward Citations = 113
Company Filing History:

Yamaha Music Foundation
where one patent can have more than one assignee
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#261 in Hamamatsu
#42,164 in Japan
#195,919 in the World
Company Filing History:

Get your Inventor Badge Today