P

Inventor

EZAWA SADAAKI

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

KAWAI MUSICAL INSTR MFG CO

13 patents

DAWAI GAKKI SEISAKUSHO KK

1 patent