Inventor
HAYAKAWA TOKUJI
JP15 patents
⚠️ This page may combine multiple inventors who share the name “HAYAKAWA TOKUJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
YAMAHA CORP
9 patentsUS6025551AFeb 15, 2000
Fingering information analyzer and electronic musical instrument with the same
YAMAHA CORP19 citations92
US5189238AFeb 23, 1993
Automatic performance apparatus for causing different kinds of sound sources to synchronously generate tones
YAMAHA CORP22 citations92
US5942710AAug 24, 1999
Automatic accompaniment apparatus and method with chord variety progression patterns, and machine readable medium containing program therefore
YAMAHA CORP21 citations91
US5208416AMay 4, 1993
Automatic performance device
YAMAHA CORP38 citations91
US6486387B1Nov 26, 2002
Fingering information analyzer, electronic musical instrument including fingering information analysis and method therefore
YAMAHA CORP6 citations73
US5422430AJun 6, 1995
Electrical musical instrument providing sound field localization
YAMAHA CORP17 citations73
US5117728AJun 2, 1992
Soft pedal effect applying apparatus
YAMAHA CORP8 citations72
US7365262B2Apr 29, 2008
Electronic musical apparatus for transposing musical piece
YAMAHA CORP2 citations62
US5326930AJul 5, 1994
Musical playing data processor
YAMAHA CORP6 citations62