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Kiyokazu Oiyama

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  • Miyagi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Magnetic recording medium
    • Patent number 4,734,330
    • Issue date Mar 29, 1988
    • Sony Corporation
    • Kiyokazu Oiyama
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Radiation curable resin
    • Patent number 4,734,480
    • Issue date Mar 29, 1988
    • Toyo Boseki Kabushiki Kaisha
    • Nobukazu Kotera
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Magnetic recording medium
    • Patent number 4,637,959
    • Issue date Jan 20, 1987
    • Sony Corporation
    • Yoshinobu Ninomiya
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Magnetic recording medium
    • Patent number 4,634,633
    • Issue date Jan 6, 1987
    • Sony Corporation
    • Yoshinobu Ninomiya
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...