Inventor

OKAMOTO EISAKU

JP21 patents

⚠️ This page may combine multiple inventors who share the name “OKAMOTO EISAKU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

OKAMOTO EISAKU

NIPPON MUSICAL INSTRUMENTS MFG

Automatic performance device with tempo follow-up function

Electronic musical instruments

Electronic musical instrument having system for judging player&#39;s performance

Automatic performing apparatus of electronic musical instrument

Automatic performance device with tempo follow-up function

Electronic musical instrument having musical performance training system

Automatic performance tempo control device

Automatic performing apparatus of electronic musical instrument

Automatic performing apparatus for musical performance data with main routine data and subroutine data

Electronic musical instrument having musical performance training system

Electronic musical instruments

Key depression indicating device for electronic musical instrument

Tone property control device in electronic musical instrument

Synthesizer type electronic musical instrument with volume envelope decay time control

Automatic performance device utilizing data having various word lengths

Preferential circuit for electronic musical instrument

Synthesizer type electronic musical instrument

Music data reading type electronic musical instrument

YAMAHA CORP

Automatic accompaniment apparatus realizing automatic accompaniment and manual performance selectable automatically

Percussive musical tone generator system

Electronic musical instrument

Electronic musical instrument having system for judging player's performance