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Hiroyuki Isashi

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  • Shizuoka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Piano toy type musical instrument
    • Patent number 4,827,826
    • Issue date May 9, 1989
    • Kawai Gakki Seisakusho Co., Ltd.
    • Hiroyuki Isashi
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Piano type musical instrument
    • Patent number 4,794,840
    • Issue date Jan 3, 1989
    • Kawai Gakki Seisakusho Co., Ltd.
    • Hiroyuki Isashi
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS