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Masaru Miyamoto

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Patents Grantslast 30 patents

  • Information Patent Grant

    Water-based ink composition for ball-point pen
    • Patent number 7,345,100
    • Issue date Mar 18, 2008
    • Mitsubishi Pencil Kabushiki Kaisha
    • Kiyoshi Iwamoto
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Water-based ink composition for ballpoint pen
    • Patent number 7,279,512
    • Issue date Oct 9, 2007
    • Mitsubishi Pencil Kabushiki Kaisha
    • Kiyoshi Iwamoto
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Ink follower for water-based ink ballpoint pen
    • Patent number 7,179,005
    • Issue date Feb 20, 2007
    • Mitsubishi Pencil Kabushiki Kaisha
    • Masaru Miyamoto
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Ink follower
    • Patent number 7,179,006
    • Issue date Feb 20, 2007
    • Mitsubishi Pencil Co., Ltd.
    • Masaru Miyamoto
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Ink-storing member for writing instrument
    • Patent number 7,037,019
    • Issue date May 2, 2006
    • Mitsubishi Pencil Co., Ltd.
    • Masaru Miyamoto
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Ink for ball-point pen and ball-point pen
    • Patent number 6,827,767
    • Issue date Dec 7, 2004
    • Mitsubishi Pencil Kabushikikaisha
    • Masaru Miyamoto
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Ink for ball pen and ball pen
    • Patent number 6,818,047
    • Issue date Nov 16, 2004
    • Mitsubishi Pencil Kabushikikaisha
    • Masaru Miyamoto
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Water-based ink composition for writing utensil
    • Patent number 6,776,829
    • Issue date Aug 17, 2004
    • Mitsubishi Pencil Kabushiki Kaisha
    • Masaru Miyamoto
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Water-based ballpoint ink composition
    • Patent number 6,770,688
    • Issue date Aug 3, 2004
    • Mitsubishi Pencil Kabushiki Kaisha
    • Masaru Miyamoto
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Pseudo-plastic water based ink for ballpoint pen
    • Patent number 6,613,135
    • Issue date Sep 2, 2003
    • Mitsubishi Pencil Kabushiki Kaisha
    • Masaru Miyamoto
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Water-based ink composition for writing instrument
    • Patent number 6,599,352
    • Issue date Jul 29, 2003
    • Mitsubishi Pencil Kabushiki Kaisha
    • Masaru Miyamoto
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Water based ink composition for writing instrument
    • Patent number 6,554,890
    • Issue date Apr 29, 2003
    • Mitsubishi Pencil Kabushiki Kaisha
    • Masaru Miyamoto
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Water based white color tone pigment ink for ball point pen
    • Patent number 6,492,435
    • Issue date Dec 10, 2002
    • Mitsubishi Pencil Kabushiki Kaisha
    • Masaru Miyamoto
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Water based ink composition for writing instrument
    • Patent number 6,491,747
    • Issue date Dec 10, 2002
    • Mitsubishi Pencil Kabushiki Kaisha
    • Masaru Miyamoto
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Water based ink composition for writing instrument
    • Patent number 6,471,759
    • Issue date Oct 29, 2002
    • Mitsubishi Pencil Kabushiki Kaisha
    • Masaru Miyamoto
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Water based ink composition for ball point pen
    • Patent number 6,451,099
    • Issue date Sep 17, 2002
    • Mitsubishi Pencil Kabushiki Kaisha
    • Masaru Miyamoto
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Pseudo-plastic water base ink for ball point pen
    • Patent number 6,423,127
    • Issue date Jul 23, 2002
    • Mitsubishi Kabushiki Kaisha
    • Masaru Miyamoto
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Aqueous gel ink-filled ball point pen
    • Patent number 6,390,710
    • Issue date May 21, 2002
    • Mitsubishi Pencil Kabushiki Kaisha
    • Masaru Miyamoto
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Water-base white pigment ink for ballpoints
    • Patent number 6,312,510
    • Issue date Nov 6, 2001
    • Mitsubishi Pencil Kabushiki Kaisha
    • Tadashi Kamagata
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Water based ink composition for writing instrument
    • Patent number 6,264,729
    • Issue date Jul 24, 2001
    • Mitsubishi Pencil Kabushiki Kaisha
    • Masaru Miyamoto
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Water based ink for ball point pen
    • Patent number 6,261,351
    • Issue date Jul 17, 2001
    • Mitsubishi Pencil Kabushiki Kaisha
    • Masaru Miyamoto
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Pseudoplastic water based ink for ballpoint pen
    • Patent number 6,176,910
    • Issue date Jan 23, 2001
    • Mitsubishi Pencil Kabushiki Kaisha
    • Shigeru Miyazaki
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Water-base ink having metallic lustrous color for ballpoint pen
    • Patent number 6,120,590
    • Issue date Sep 19, 2000
    • Mitsubishi Pencil Kabushiki Kaisha
    • Masaru Miyamoto
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...

Patents Applicationslast 30 patents

  • Information Patent Application

    COLORING COMPOSITION AND COLORING METHOD
    • Publication number 20110297305
    • Publication date Dec 8, 2011
    • Mitsubishi Pencil Co., Ltd.
    • Masaru Miyamoto
    • D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
  • Information Patent Application

    COLORING COMPOSITION AND COLORING METHOD
    • Publication number 20090049625
    • Publication date Feb 26, 2009
    • Mitsubishi Pencil Co., Ltd.
    • Masaru Miyamoto
    • D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
  • Information Patent Application

    Ink following element
    • Publication number 20060047017
    • Publication date Mar 2, 2006
    • Mitsubishi Pencil Co., Ltd.
    • Masaru Miyamoto
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Aqueous ink composition for ball-point pen
    • Publication number 20050143485
    • Publication date Jun 30, 2005
    • Kiyoshi Iwamoto
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Application

    Ink follow-up material for water-base ball pen
    • Publication number 20050074273
    • Publication date Apr 7, 2005
    • Mitsubishi Pencil Kabushiki Kaisha
    • Masaru Miyamoto
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Aqueous ink composition for ball-point pen
    • Publication number 20050043439
    • Publication date Feb 24, 2005
    • Kiyoshi Iwamoto
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Application

    Ink-storing member for writing instrument
    • Publication number 20040265041
    • Publication date Dec 30, 2004
    • Mitsubishi Pencil Co., Ltd.
    • Masaru Miyamoto
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    Water-based ink composition for writing utensil
    • Publication number 20030196568
    • Publication date Oct 23, 2003
    • Masaru Miyamoto
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Application

    Ink for ball-point pen and ball-point pen
    • Publication number 20030005855
    • Publication date Jan 9, 2003
    • Masaru Miyamoto
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Application

    Ink for ball pen and ball pen
    • Publication number 20030005854
    • Publication date Jan 9, 2003
    • Masaru Miyamoto
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Application

    AQUEOUS GEL INK-FILLED BALL POINT PEN
    • Publication number 20020071709
    • Publication date Jun 13, 2002
    • MITSUBISHI PENCIL KABUSHIKI KAISHA
    • Masaru Miyamoto
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Application

    Water based ink composition for writing instrument
    • Publication number 20020011180
    • Publication date Jan 31, 2002
    • Mitsubishi Pencil Kabushiki Kaisha
    • Masaru Miyamoto
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Application

    Water based ink composition for writing instrument
    • Publication number 20020007763
    • Publication date Jan 24, 2002
    • Mitsubishi Pencil Kabushiki Kaisha
    • Masaru Miyamoto
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Application

    Water based ink composition for writing instrument
    • Publication number 20010017096
    • Publication date Aug 30, 2001
    • Mitsubishi Pencil Kabushiki Kaisha
    • Masaru Miyamoto
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...