Patents by Inventor Makoto Ookubo

Makoto Ookubo 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).

  • Patent number: 9771455
    Abstract: A paving binder according to the present invention is used for a paving mixture for forming a pavement, including a polyamide resin having a weight average molecular weight, as measured by gel permeation chromatography of 2,000 or more and 10,000 or less and having an area, corresponding to a component having a molecular weight of 20,000 or more and 500,000 or less, of 0.5% or more and 12% or less of a total area in a chromatogram of molecular weight distribution as measured by gel permeation chromatography. Thus, tolerance for a severe temperature condition or loading condition can be improved, while ensuring convenience from the standpoint of laying such that the laying can be made by the conventional machine composition or laying system.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: September 26, 2017
    Assignee: KAO CORPORATION
    Inventors: Atsushi Nagahara, Toshiaki Hirato, Masato Murayama, Makoto Ookubo
  • Publication number: 20160002404
    Abstract: A paving binder according to the present invention is used for a paving mixture for forming a pavement, including a polyamide resin having a weight average molecular weight, as measured by gel permeation chromatography of 2,000 or more and 10,000 or less and having an area, corresponding to a component having a molecular weight of 20,000 or more and 500,000 or less, of 0.5% or more and 12% or less of a total area in a chromatogram of molecular weight distribution as measured by gel permeation chromatography. Thus, tolerance for a severe temperature condition or loading condition can be improved, while ensuring convenience from the standpoint of laying such that the laying can be made by the conventional machine composition or laying system.
    Type: Application
    Filed: December 27, 2013
    Publication date: January 7, 2016
    Applicant: KAO CORPORATION
    Inventors: Atsushi NAGAHARA, Toshiaki HIRATO, Masato MURAYAMA, Makoto OOKUBO
  • Patent number: 5560984
    Abstract: A polyester resin laminated plate which has a smooth surface, has less anisotropy of mechanical properties, is inexpensive, has no restriction in size, thickness, etc., and has a good cutting workability is produced by a process including the steps of melt-extruding a composition including 100 parts by weight of a thermoplastic polyester resin compounded with from about 5 to about 40 parts by weight of a fibrous reinforcing material and from about 5 to about 50 parts by weight of a granular inorganic compound to form sheets, forcibly cooling the sheets to a temperature lower than the glass transition point of the polyester resin to provide plural sheets having a surface crystallinity of less than about 10%, laminating these plural sheets, and hot-pressing them at a pressure of from about 15 to about 150 kg/cm.sup.2 and at a temperature of from about 80.degree. to about 260.degree. C., with the rate of temperature increase of about 3.degree. C./minute or more to reach the temperature.
    Type: Grant
    Filed: September 28, 1993
    Date of Patent: October 1, 1996
    Assignee: Unitika Ltd.
    Inventors: Ken'ichi Tanimoto, Yoshiaki Kometani, Kenzou Aki, Makoto Ookubo, Yasuki Nakayama