Patents by Inventor Tomooki Okabe

Tomooki Okabe has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Joining member and ballpoint pen employing the same
    Patent number: 8439587
    Abstract: The present invention provides a joining member for connecting an ink accommodating member and a ballpoint pen tip provided in a ballpoint pen, the joining member comprising, as a constituent material, a resin comprising a copolymer of polyethylene terephthalate and polyethylene naphthalate. By this means, it is possible to provide a joining member for a ballpoint pen having, in particular, both sufficiently excellent transparency and gas barrier properties.
    Type: Grant
    Filed: May 23, 2007
    Date of Patent: May 14, 2013
    Assignee: Zebra Co., Ltd.
    Inventor: Tomooki Okabe
  • Writing ink composition
    Patent number: 8246734
    Abstract: The writing ink composition of the present invention includes: an oil-based component containing a polar solvent and a spinnability imparting agent; and a water-based component containing water, polyhydric alcohol, a thixotropy imparting agent and a pigment, the water-based component being dispersed in the above oil-based component.
    Type: Grant
    Filed: November 20, 2007
    Date of Patent: August 21, 2012
    Assignee: Zebra Co., Ltd.
    Inventors: Tomooki Okabe, Akinori Tanaka
  • WRITING INK COMPOSITION
    Publication number: 20100186623
    Abstract: The writing ink composition of the present invention includes: an oil-based component containing a polar solvent and a spinnability imparting agent; and a water-based component containing water, polyhydric alcohol, a thixotropy imparting agent and a pigment, the water-based component being dispersed in the above oil-based component.
    Type: Application
    Filed: November 20, 2007
    Publication date: July 29, 2010
    Applicant: ZEBRA CO., LTD.
    Inventors: Tomooki Okabe, Akinori Tanaka
  • JOINING MEMBER AND BALLPOINT PEN EMPLOYING THE SAME
    Publication number: 20100129136
    Abstract: The present invention provides a joining member for connecting an ink accommodating member and a ballpoint pen tip provided in a ballpoint pen, the joining member comprising, as a constituent material, a resin comprising a copolymer of polyethylene terephthalate and polyethylene naphthalate. By this means, it is possible to provide a joining member for a ballpoint pen having, in particular, both sufficiently excellent transparency and gas barrier properties.
    Type: Application
    Filed: May 23, 2007
    Publication date: May 27, 2010
    Applicant: ZEBRA CO., LTD
    Inventor: Tomooki Okabe