Inventor
URA TOMOYUKI
JP13 patents
Patents
13 patentsUS6297437B1Oct 2, 2001
Keyboard musical instrument and information processing system incorporated therein for discriminating different kinds of key motion
YAMAHA CORP64 citations96
US5824930AOct 20, 1998
Keyboard musical instrument having key monitor exactly discriminating key motion
YAMAHA CORP85 citations96
US6362412B1Mar 26, 2002
Analyzer used for plural physical quantitied, method used therein and musical instrument equipped with the analyzer
YAMAHA CORP20 citations92
US6271447B1Aug 7, 2001
Velocity calculating system for moving object widely varied in velocity method for correcting velocity and keyboard musical instrument equipped with the velocity calculating system for accurately determining loudness of sounds
YAMAHA CORP33 citations92
US6245985B1Jun 12, 2001
Data converter for enhancing resolution, method for converting data codes and keyboard musical instrument equipped with the data converter
YAMAHA CORP47 citations92
US6229081B1May 8, 2001
Keyboard musical instrument, position sensing device and light-emitting controller both incorporated therein
YAMAHA CORP34 citations92
US5612502AMar 18, 1997
Keyboard musical instrument estimating hammer impact and timing for tone-generation from one of hammer motion and key motion
YAMAHA CORP40 citations92
US5583310ADec 10, 1996
Keyboard musical instrument selectively introducing time delay into hammer detecting signal between acoustic sound mode and electronic sound mode
YAMAHA CORP30 citations92
US7094961B2Aug 22, 2006
Musical instrument capable of diagnosing electronic and mechanical components and diagnostic system used therein
YAMAHA CORP19 citations91
US7161137B2Jan 9, 2007
Optical transducer system having light emitting elements and light detecting elements both regulable in output characteristics
YAMAHA CORP19 citations90
US6933494B2Aug 23, 2005
Optical sensor heads exhibiting regularity in optical characteristics and optical sensor system using the same
YAMAHA CORP8 citations73
US5552560ASep 3, 1996
Electronic keyboard musical instrument with multifunctional keyboard
YAMAHA CORP9 citations73
US7259319B2Aug 21, 2007
Performance operator control apparatus
YAMAHA CORP2 citations62