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Kiyoshi Fujisawa

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Patents Grantslast 30 patents

  • Information Patent Grant

    Stylus pen
    • Patent number 11,112,892
    • Issue date Sep 7, 2021
    • Mitsubishi Pencil Company, Limited
    • Kiyoshi Fujisawa
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Solid drawing material
    • Patent number 10,023,756
    • Issue date Jul 17, 2018
    • Mitsubishi Pencil Company, Limited
    • Huyen Nguyen Thi Thanh
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Fuel container
    • Patent number 8,435,698
    • Issue date May 7, 2013
    • Casio Computer Co., Ltd.
    • Yugo Matsuda
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Grant

    Fuel cartridge
    • Patent number 7,951,504
    • Issue date May 31, 2011
    • Mitsubishi Pencil Company, Limited
    • Kiyoshi Fujisawa
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Grant

    Liquid cartridge
    • Patent number 7,909,901
    • Issue date Mar 22, 2011
    • Casio Computer Co., Ltd.
    • Yasunari Kabasawa
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Grant

    Gas pressurized writing instrument and writing instrument refill
    • Patent number 7,381,004
    • Issue date Jun 3, 2008
    • Mitsubishi Pencil Kabushiki Kaisha
    • Kazuhiko Furukawa
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Gas-pressurized writing instrument and writing instrument refill
    • Patent number 7,325,992
    • Issue date Feb 5, 2008
    • Mitsubishi Pencil Kabushiki Kaisha
    • Kazuhiko Furukawa
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Writing instrument and welding method of writing point assembly and...
    • Patent number 7,303,351
    • Issue date Dec 4, 2007
    • Mitsubishi Pencil Kabushiki Kaisha
    • Kazuhiko Furukawa
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Ball-point pen refill
    • Patent number 6,926,458
    • Issue date Aug 9, 2005
    • Mitsubishi Pencil Kabushikikaisha
    • Takayuki Maki
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Ink replenishing apparatus and ink replenishing method for ink-jet...
    • Patent number 6,048,054
    • Issue date Apr 11, 2000
    • Mitsubishi Pencil Kabushiki Kaisha
    • Yoichi Ando
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Patents Applicationslast 30 patents

  • Information Patent Application

    REPLACEMENT LEAD CASE
    • Publication number 20240101307
    • Publication date Mar 28, 2024
    • MITSUBISHI PENCIL COMPANY, LIMITED
    • Mitsuhiro KAWABATA
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Application

    STYLUS PEN
    • Publication number 20210072848
    • Publication date Mar 11, 2021
    • MITSUBISHI PENCIL COMPANY, LIMITED
    • Kiyoshi Fujisawa
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    Solid Drawing Material
    • Publication number 20170051173
    • Publication date Feb 23, 2017
    • Mitsubishi Pencil Company, Limited
    • Huyen Nguyen Thi Thanh
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Application

    ELECTROPHORETIC DISPLAY APPARATUS AND DRIVE METHOD THEREOF
    • Publication number 20150317950
    • Publication date Nov 5, 2015
    • Mitsubishi Pencil Co., Ltd.
    • Masashi Sakagami
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Application

    Liquid Cartridge
    • Publication number 20100230833
    • Publication date Sep 16, 2010
    • CASIO COMPUTER CO., LTD.
    • Yasunari Kabasawa
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    FUEL CARTRIDGE
    • Publication number 20100012568
    • Publication date Jan 21, 2010
    • MITSUBISHI PENCIL COMPANY, LIMITED
    • Kiyoshi Fujisawa
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    FUEL CONTAINER
    • Publication number 20090130531
    • Publication date May 21, 2009
    • Yugo Matsuda
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    Gas pressurization type writing utensil refill
    • Publication number 20050117960
    • Publication date Jun 2, 2005
    • Kazuhiko Furukawa
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Gas-pressurization type writing utensil and writing utensil refill
    • Publication number 20050079001
    • Publication date Apr 14, 2005
    • mitsubishi pencil kabushiki kaisha
    • Kazuhiko Furukawa
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Writing instrument and welding method of writing point assembly and...
    • Publication number 20050074274
    • Publication date Apr 7, 2005
    • Kazuhiko Furukawa
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Ball-point pen refill
    • Publication number 20040067092
    • Publication date Apr 8, 2004
    • Takayuki Maki
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES