Inventor

YUI HIROFUMI

JP4 patents

Patents

4 patents

US9117433B2Aug 25, 2015

Tuning device

ROLAND CORP5 citations69

US9064479B2Jun 23, 2015

Tuning device

ROLAND CORP4 citations69

US9633642B2Apr 25, 2017

Electronic musical instrument system

ROLAND CORP3 citations64

US8809661B2Aug 19, 2014

Tuning device

ROLAND CORP3 citations54