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Hiroaki Koyama

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Patents Grantslast 30 patents

  • Information Patent Grant

    Click-type applicator
    • Patent number 9,375,068
    • Issue date Jun 28, 2016
    • Mitsubishi Pencil Company, Limited
    • Hiroaki Koyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Liquid applicator
    • Patent number 8,777,506
    • Issue date Jul 15, 2014
    • Mitsubishi Pencil Co., Ltd.
    • Tetsuaki Akaishi
    • A45 - HAND OR TRAVELLING ARTICLES
  • Information Patent Grant

    Liquid applicator
    • Patent number 8,282,303
    • Issue date Oct 9, 2012
    • Mitsubishi Pencil Co., Ltd.
    • Takashi Umeno
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Cosmetic-containing applicator and replacement brush
    • Patent number 8,206,051
    • Issue date Jun 26, 2012
    • Mitsubishi Pencil Kabushikikaisha
    • Kiyokazu Sakurai
    • A45 - HAND OR TRAVELLING ARTICLES
  • Information Patent Grant

    Hair dye and applicator for hair using the same
    • Patent number 7,803,198
    • Issue date Sep 28, 2010
    • Mitsubishi Pencil Company, Limited
    • Takashi Umeno
    • A45 - HAND OR TRAVELLING ARTICLES
  • Information Patent Grant

    Double ended direct-feed type writing implement
    • Patent number 6,435,747
    • Issue date Aug 20, 2002
    • Mitsubishi Pencil Kabushiki Kaisha
    • Kazuhiko Furukawa
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Clicking-type writing implement
    • Patent number 5,918,993
    • Issue date Jul 6, 1999
    • Mitsubishi Pencil Kabushiki Kaisha
    • Hiroaki Koyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Ball-point pen cap
    • Patent number 5,915,871
    • Issue date Jun 29, 1999
    • Mitsubishi Pencil Kabushiki Kaisha
    • Seiichi Kobayashi
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Clicking-type writing implement
    • Patent number 5,871,296
    • Issue date Feb 16, 1999
    • Mitsubishi Pencil Kabushiki Kaisha
    • Kazuhiko Furukawa
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Ball-point pen with back flow stop
    • Patent number 5,711,626
    • Issue date Jan 27, 1998
    • Mitsubishi Pencil Kabushiki Kaisha
    • Seiichi Kobayashi
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents

  • Information Patent Application

    CLICK-TYPE APPLICATOR
    • Publication number 20120328354
    • Publication date Dec 27, 2012
    • MITSUBISHI PENCIL COMPANY, LIMITED
    • Hiroaki Koyama
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    LIQUID APPLICATOR
    • Publication number 20100232866
    • Publication date Sep 16, 2010
    • MITSUBISHI PENCIL COMPANY, LIMITED
    • Takashi Umeno
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    HAIR DYE AND APPLICATOR FOR HAIR USING THE SAME
    • Publication number 20100043151
    • Publication date Feb 25, 2010
    • Takashi Umeno
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    Cosmetic-Containing Applicator and Replacement Brush
    • Publication number 20090304431
    • Publication date Dec 10, 2009
    • Kiyokazu Sakurai
    • A45 - HAND OR TRAVELLING ARTICLES
  • Information Patent Application

    Liquid Applicator
    • Publication number 20090283033
    • Publication date Nov 19, 2009
    • Mitsubishi Pencil Co., Ltd.
    • Tetsuaki Akaishi
    • A45 - HAND OR TRAVELLING ARTICLES
  • Information Patent Application

    Viscous Cosmetic Item
    • Publication number 20090162130
    • Publication date Jun 25, 2009
    • Takayuki Miyazaki
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    Double ended direct-feed type writing implement
    • Publication number 20010012468
    • Publication date Aug 9, 2001
    • Mitsubishi Pencil Kabushiki Kaisha
    • Kazuhiko Furukawa
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES