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Naohiro Hanaoka

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  • Hachioji, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method of producing a coreless armature
    • Patent number 5,628,951
    • Issue date May 13, 1997
    • Olympus Optical Company Limited
    • Goro Kitajima
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Mold for forming a coreless armature
    • Patent number 5,460,503
    • Issue date Oct 24, 1995
    • Olympus Optical Company, Limited
    • Goro Kitajima
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Molded armature
    • Patent number 5,304,884
    • Issue date Apr 19, 1994
    • Olympus Optical Company Limited
    • Goro Kitajima
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Magnetic recording medium and method for manufacturing the same
    • Patent number 4,555,444
    • Issue date Nov 26, 1985
    • Olympus Optical Co., Ltd.
    • Naohiro Hanaoka
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Ferromagnetic recording medium
    • Patent number 4,410,583
    • Issue date Oct 18, 1983
    • Olympus Optical Co., Ltd.
    • Naohiro Hanaoka
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Magnetic head and method of manufacturing the same
    • Patent number 4,369,477
    • Issue date Jan 18, 1983
    • Olympus Optical Co., Ltd.
    • Naohiro Hanaoka
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Magnetic recording device
    • Patent number 4,363,058
    • Issue date Dec 7, 1982
    • Olympus Optical Co., Ltd.
    • Naohiro Hanaoka
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Thermomagnetic recording and reproducing apparatus
    • Patent number 4,340,914
    • Issue date Jul 20, 1982
    • Olympus Optical Co., Ltd.
    • Naohiro Hanaoka
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Method of magnetizing erasing head
    • Patent number 4,186,364
    • Issue date Jan 29, 1980
    • Olympus Optical Limited
    • Naohiro Hanaoka
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Erase head
    • Patent number 4,141,052
    • Issue date Feb 20, 1979
    • Olympus Optical Co., Ltd.
    • Naohiro Hanaoka
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Composite magnetic head
    • Patent number 4,118,747
    • Issue date Oct 3, 1978
    • Olympus Optical Co., Ltd.
    • Naohiro Hanaoka
    • G11 - INFORMATION STORAGE