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Masaaki Sakai

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  • Kawasaki, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Capstan servo system
    • Patent number 4,698,703
    • Issue date Oct 6, 1987
    • Sony Corporation
    • Kazuhisa Nishimura
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Video tape editor
    • Patent number 4,463,391
    • Issue date Jul 31, 1984
    • Sony Corporation
    • Masayuki Takano
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Vertical synchronizing signal detecting circuit
    • Patent number 4,459,612
    • Issue date Jul 10, 1984
    • Sony Corporation
    • Mitsutoshi Shinkai
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Stop control circuit for brushless DC motor
    • Patent number 4,438,377
    • Issue date Mar 20, 1984
    • Sony Corporation
    • Masaaki Sakai
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Switching drive circuit
    • Patent number 4,377,777
    • Issue date Mar 22, 1983
    • Sony Corporation
    • Osamu Asagi
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Phonograph record player
    • Patent number 4,113,264
    • Issue date Sep 12, 1978
    • Sony Corporation
    • Toru Sato
    • G11 - INFORMATION STORAGE