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NIPPON DENSAN CORPORATION

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  • KYOTO, JP
Organizations

Patents Grantslast 30 patents

  • Information Patent Grant

    Conical hydrodynamic bearing device and a recording disk drive equi...
    • Patent number 7,063,463
    • Issue date Jun 20, 2006
    • Nippon Densan Co., Ltd.
    • Masato Gomyo
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Heat sink fan
    • Patent number 5,484,013
    • Issue date Jan 16, 1996
    • Nippon Densan Corporation
    • Fumihiro Morikawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Charge controller for battery charger
    • Patent number 5,475,294
    • Issue date Dec 12, 1995
    • Nippon Densan Corporation
    • Takuya Isoda
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Spindle motor
    • Patent number 5,459,361
    • Issue date Oct 17, 1995
    • Nippon Densan Corporation
    • Yuji Morioka
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Low profile hydrodynamic motor having minimum leakage properties
    • Patent number 5,457,588
    • Issue date Oct 10, 1995
    • Nippon Densan Corporation
    • Shinobu Hattori
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Low airflow hard disk apparatus
    • Patent number 5,453,890
    • Issue date Sep 26, 1995
    • Nippon Densan Corporation
    • Kiyoyoshi Takegami
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Spindle motor with combined pressure relief and adhesive carrying a...
    • Patent number 5,452,156
    • Issue date Sep 19, 1995
    • Nippon Densan Corporation
    • Takeshi Uda
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Fan motor
    • Patent number 5,436,519
    • Issue date Jul 25, 1995
    • Nippon Densan Corporation
    • Shuji Takahashi
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Method of and circuit for starting sensorless motor
    • Patent number 5,428,284
    • Issue date Jun 27, 1995
    • Nippon Densan Corporation
    • Isao Kaneda
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Disk clamping assembly for a low profile disk drive apparatus
    • Patent number 5,426,548
    • Issue date Jun 20, 1995
    • Nippon Densan Corporation
    • Yoshio Fujii
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Transformer
    • Patent number 5,412,367
    • Issue date May 2, 1995
    • Nippon Densan Corporation
    • Seiki Shibui
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Spindle motor and magnetic fluid seal apparatus used therefor
    • Patent number 5,402,023
    • Issue date Mar 28, 1995
    • Nippon Densan Corporation
    • Yoshiaki Nakanishi
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Motor
    • Patent number 5,396,135
    • Issue date Mar 7, 1995
    • Nippon Densan Corporation
    • Kuniyasu Iwazaki
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Method of starting a motor
    • Patent number 5,396,159
    • Issue date Mar 7, 1995
    • Nippon Densan Corporation
    • Isao Kaneda
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Spindle motor with a sealing member
    • Patent number 5,381,066
    • Issue date Jan 10, 1995
    • Nippon Densan Corporation
    • Itsuo Miyaji
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Motor eccentricity measuring apparatus
    • Patent number 5,365,458
    • Issue date Nov 15, 1994
    • Nippon Densan Corporation
    • Itaru Tamura
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Circuit and method of driving a DC motor
    • Patent number 5,363,028
    • Issue date Nov 8, 1994
    • Nippon Densan Corporation
    • Yoichi Mori
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Motor and circuitry for protecting same
    • Patent number 5,363,003
    • Issue date Nov 8, 1994
    • Nippon Densan Corporation
    • Koji Harada
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    IC controlled DC motor
    • Patent number 5,357,160
    • Issue date Oct 18, 1994
    • Nippon Densan Corporation
    • Isao Kaneda
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Brushless polyphase DC motor
    • Patent number 5,355,043
    • Issue date Oct 11, 1994
    • Nippon Densan Corporation
    • Isao Kaneda
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Spindle motor with labyrinth sealed bearing
    • Patent number 5,347,189
    • Issue date Sep 13, 1994
    • Nippon Densan Corporation
    • Masanobu Chuta
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Fan motor
    • Patent number 5,343,104
    • Issue date Aug 30, 1994
    • Nippon Densan Corporation
    • Shuji Takahashi
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Micropump with liquid-absorptive polymer gel actuator
    • Patent number 5,336,057
    • Issue date Aug 9, 1994
    • Nippon Densan Corporation
    • Toshio Fukuda
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Spindle motor with the stator core supported by a resin member
    • Patent number 5,334,895
    • Issue date Aug 2, 1994
    • Nippon Densan Corporation
    • Yuji Morioka
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Low profile hard disk apparatus
    • Patent number 5,333,079
    • Issue date Jul 26, 1994
    • Nippon Densan Corporation
    • Kiyoyoshi Takegami
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Spindle motor and disk clamp mechanism used therein
    • Patent number 5,317,225
    • Issue date May 31, 1994
    • Nippon Densan Corporation
    • Itsuo Miyaji
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Magnetic recording device having reduced electromagnetic interference
    • Patent number 5,291,357
    • Issue date Mar 1, 1994
    • Nippon Densan Corporation
    • Takeshi Uda
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Micropump
    • Patent number 5,288,214
    • Issue date Feb 22, 1994
    • Fukuda; Toshio
    • Toshio Fukuda
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Magnetic disk drive device and spindle motor for use in the same
    • Patent number 5,281,886
    • Issue date Jan 25, 1994
    • Nippon Densan Corporation
    • Kihachiro Ohta
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Spindle motor with disk clamping arrangement
    • Patent number 5,280,207
    • Issue date Jan 18, 1994
    • Nippon Densan Corporation
    • Hideki Nishmura
    • G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Trademarklast 30 trademarks

  • Information Trademark

    73581896 - NIDEC
    • Serial number 73581896
    • Registration number 2096193
    • Filing date Feb 7, 1986
    • NIDEC-TORIN CORPORATION
    • 7 - Machines and machine tools