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Kenji Okayasu

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Metal halide lamp
    • Patent number 8,736,167
    • Issue date May 27, 2014
    • Iwasaki Electric Co., Ltd.
    • Yoshihisa Shibata
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Mirror
    • Patent number 8,641,213
    • Issue date Feb 4, 2014
    • Kenji Okayasu
    • A45 - HAND OR TRAVELLING ARTICLES
  • Information Patent Grant

    Portable heat transfer apparatus
    • Patent number 7,975,657
    • Issue date Jul 12, 2011
    • Kenji Okayasu
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Portable heat transfer apparatus
    • Patent number 7,661,420
    • Issue date Feb 16, 2010
    • Kenji Okayasu
    • F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
  • Information Patent Grant

    Method for controlling a drawing apparatus, a drawing apparatus and...
    • Patent number 6,144,766
    • Issue date Nov 7, 2000
    • Kenji Okayasu
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Rocket damping device
    • Patent number 6,119,414
    • Issue date Sep 19, 2000
    • Kenji Okayasu
    • E04 - BUILDING
  • Information Patent Grant

    Method for controlling a drawing apparatus, a drawing apparatus and...
    • Patent number 5,953,494
    • Issue date Sep 14, 1999
    • Kenji Okayasu
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Portable heat conducting apparatus
    • Patent number 5,282,740
    • Issue date Feb 1, 1994
    • Kenji Okayasu
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Heat-driven pump
    • Patent number 5,129,788
    • Issue date Jul 14, 1992
    • Kenji Okayasu
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Prick-preventing shoe
    • Patent number 5,003,709
    • Issue date Apr 2, 1991
    • Rikio Co., Ltd.
    • Kenji Okayasu
    • A43 - FOOTWEAR
  • Information Patent Grant

    Shoe insole
    • Patent number 5,001,848
    • Issue date Mar 26, 1991
    • Rikio Co., Ltd.
    • Kenji Okayasu
    • A43 - FOOTWEAR
  • Information Patent Grant

    Heat conducting device
    • Patent number 4,986,348
    • Issue date Jan 22, 1991
    • Kenji Okayasu
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    Electronic equipment cooling device
    • Patent number 4,930,570
    • Issue date Jun 5, 1990
    • Kenji Okayasu
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Heat conducting device
    • Patent number 4,881,593
    • Issue date Nov 21, 1989
    • Kenji Okayasu
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    Footwear
    • Patent number 4,811,501
    • Issue date Mar 14, 1989
    • Rikio Co., Ltd.
    • Kenji Okayasu
    • A43 - FOOTWEAR
  • Information Patent Grant

    Heat-driven pump
    • Patent number 4,792,283
    • Issue date Dec 20, 1988
    • Kenji Okayasu
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Heat transport apparatus
    • Patent number 4,625,790
    • Issue date Dec 2, 1986
    • Kenji Okayasu
    • F24 - HEATING RANGES VENTILATING

Patents Applicationslast 30 patents

  • Information Patent Application

    METAL HALIDE LAMP
    • Publication number 20120126696
    • Publication date May 24, 2012
    • Iwasaki Electric Co., Ltd.
    • Yoshihisa Shibata
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    MIRROR
    • Publication number 20120087027
    • Publication date Apr 12, 2012
    • Kenji Okayasu
    • A45 - HAND OR TRAVELLING ARTICLES
  • Information Patent Application

    Portable Heat Transfer Apparatus
    • Publication number 20090117505
    • Publication date May 7, 2009
    • Kenji Okayasu
    • F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
  • Information Patent Application

    Portable heat transfer apparatus
    • Publication number 20070020575
    • Publication date Jan 25, 2007
    • Kenji Okayasu
    • F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES