Patents by Inventor Masako Takamatsu

Masako Takamatsu 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).

  • Cyclic olefin polymer composition, use thereof, and cyclic olefin polymer
    Patent number: 8883925
    Abstract: A cyclic olefin polymer composition comprising: [A] a specific cyclic olefin polymer having a softening temperature (TMA) of 120 to 300° C.; and [B] a specific cyclic olefin polymer having a glass transition temperature (Tg) of 50° C. or lower, wherein the absolute value of the difference between nD[A] and nD[B] is 0.014 or less in which nD[B] represents a refractive index of the cyclic olefin polymer [B] and nD[A] represent that of the cyclic olefin polymer [A], and the component [A] is contained in an amount of 50 to 95 parts by weight and the component [B] is contained in an amount of 5 to 50 parts by weight (provided that the total amount of the components [A] and [B] is defined as 100 parts by weight).
    Type: Grant
    Filed: December 3, 2007
    Date of Patent: November 11, 2014
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Kouichi Kizu, Masako Takamatsu, Michio Tsugawa, Ryouichi Seki
  • CYCLIC OLEFIN POLYMER COMPOSITION, USE THEREOF, AND CYCLIC OLEFIN POLYMER
    Publication number: 20100081768
    Abstract: A cyclic olefin polymer composition comprising: [A] a specific cyclic olefin polymer having a softening temperature (TMA) of 120 to 300° C.; and [B] a specific cyclic olefin polymer having a glass transition temperature (Tg) of 50° C. or lower, wherein the absolute value of the difference between nD[A] and nD[B] is 0.014 or less in which nD[B] represents a refractive index of the cyclic olefin polymer [B] and nD[A] represents that of the cyclic olefin polymer [A], and the component [A] is contained in an amount of 50 to 95 parts by weight and the component [B] is contained in an amount of 5 to 50 parts by weight (provided that the total amount of the components [A] and [B] is defined as 100 parts by weight).
    Type: Application
    Filed: December 3, 2007
    Publication date: April 1, 2010
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Kouichi Kizu, Masako Takamatsu, Michio Tsugawa, Ryouichi Seki