KH

Kensaku Hakamata

KS Kawai Gakki Seisakusho: 1 patents #113 of 198Top 60%
Overall (All Time): #4,024,062 of 4,157,543Top 100%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4550638 Portable keyboard-type musical instrument Kenkichi Kaneko, Takeshi Hattori, Satoru Hayashi, Takayuki Goshima, Masakazu Matsumoto 1985-11-05