Inventor

ONISHI MASANARI

JP3 patents

Patents

3 patents

US4840104AJun 20, 1989

Keyboard

KAWAI MUSICAL INSTR MFG CO28 citations88

US5223652AJun 29, 1993

Key and keyboard

KAWAI MUSICAL INSTR MFG CO10 citations70

US5299484AApr 5, 1994

Bearing structure and transmission structure in piano

KAWAI MUSICAL INSTR MFG CO6 citations59