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Yasunori Nakatani

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Patents Grantslast 30 patents

  • Information Patent Grant

    Tip unit for liquid applicator and liquid applicator
    • Patent number 8,651,762
    • Issue date Feb 18, 2014
    • Sakura Color Products Corporation
    • Yasunori Nakatani
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Liquid applicator
    • Patent number 8,292,534
    • Issue date Oct 23, 2012
    • Sakura Color Products Corporation
    • Yasunori Nakatani
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Water-based ink composition
    • Patent number 8,080,098
    • Issue date Dec 20, 2011
    • Sakura Color Products Corporation
    • Norimasa Kurihara
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Tip unit for liquid applicator, method for producing the same, and...
    • Patent number 7,914,222
    • Issue date Mar 29, 2011
    • Sakura Color Products Corporation
    • Hiroshi Inoue
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Method of producing applicator tip
    • Patent number 7,721,402
    • Issue date May 25, 2010
    • Sakura Color Products Corporation
    • Hiroshi Inoue
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Aqueous ink composition
    • Patent number 7,538,148
    • Issue date May 26, 2009
    • Sakura Color Products Corporation
    • Hiroshi Inoue
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Double-color ink and writing utensil containing the same
    • Patent number 6,706,101
    • Issue date Mar 16, 2004
    • Sakura Color Products Corp.
    • Yasuyuki Yoshimura
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Ball-point pen and a penpoint tip therein
    • Patent number 6,422,776
    • Issue date Jul 23, 2002
    • Sakura Color Products Corporation
    • Yasunori Nakatani
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Ball for ball-point pen
    • Patent number 6,332,728
    • Issue date Dec 25, 2001
    • Sakura Color Products Corporation
    • Tadaaki Ito
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Ball-point pen
    • Patent number 6,299,376
    • Issue date Oct 9, 2001
    • Sakura Color Products Corporation
    • Yasunori Nakatani
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Ink applicator, ink backflow prevention mechanism of ink applicator...
    • Patent number 6,283,662
    • Issue date Sep 4, 2001
    • Sakura Color Products Corporation
    • Shigeyasu Inoue
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Writing inplement with magnetic closure
    • Patent number 5,022,775
    • Issue date Jun 11, 1991
    • Kabushiki Kaisha Sakura Kurepasu
    • Shigeyasu Inoue
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents

  • Information Patent Application

    APPLICATOR
    • Publication number 20130004231
    • Publication date Jan 3, 2013
    • Yasunori Nakatani
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    TIP UNIT FOR LIQUID APPLICATOR AND LIQUID APPLICATOR
    • Publication number 20110274477
    • Publication date Nov 10, 2011
    • Yasunori Nakatani
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Liquid Applicator
    • Publication number 20100014906
    • Publication date Jan 21, 2010
    • Yasunori Nakatani
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Water-Based Ink Composition
    • Publication number 20070203259
    • Publication date Aug 30, 2007
    • Sakura Color Products Corporation
    • Norimasa Kurihara
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Application

    Tips for ball-point pens, roller ball pens or gel ink roller ball pens
    • Publication number 20070196160
    • Publication date Aug 23, 2007
    • Sakura Color Products Corporation
    • Yasunori Nakatani
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Tip unit for liquid applicator, method for producing the same, and...
    • Publication number 20070110507
    • Publication date May 17, 2007
    • Hiroshi Inoue
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Method of producing applicator tip
    • Publication number 20060260112
    • Publication date Nov 23, 2006
    • Hiroshi Inoue
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Aqueous ink composition
    • Publication number 20060233595
    • Publication date Oct 19, 2006
    • SAKURA COLOR PRODUCTS CORPORATION
    • Hiroshi Inoue
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES