Inventor

KUMANO SHINJI

JP22 patents

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

KUMANO SHINJI

YAMAHA CORP

Musical tone generating apparatus

Keyboarding apparatus for electronic musical instrument with simplified mass member and method of making mass member

Keyboard apparatus for musical instrument

Keyboard apparatus with white keys and black keys having action member driving sections at substantially the same location

Keyboard apparatus with common stopper for key and hammer

Musical tone control apparatus

Keyboard apparatus of electronic musical instrument

Leaf spring and mounting construction of the same

Keyboard apparatus with white keys and black keys having substantially the same action members

Keyboard assembly and method of manufacturing it

Keyboard device of electronic musical instrument

Keyboard device of electronic musical instrument

NIPPON MUSICAL INSTRUMENTS MFG

Keyboard device having cushioned weight member for electronic musical instrument

Keyboard apparatus in electronic musical instrument

Keyboard device having cushioned weight member for electronic musical instrument

Keyboard structures of electronic musical instruments

Keyboard musical instrument

Keyboard musical instrument with casing comprising two halves

Keyboard musical instrument with removable box leg

Keyboard device of electronic musical instrument

Keyboard device of electronic musical instrument

Method of producing multi-key structure for keyboard musical instruments