Patents by Inventor Tomoko Takahara

Tomoko Takahara 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).

  • Curable organic polymers containing hydrosilyl groups
    Patent number: 5580925
    Abstract: An organic polymer having at least two hydrosilyl groups in a molecule is mixed with an organic polymer having at least one alkenyl group in a molecule and a hydrosilylation catalyst to give a composition. Such composition is rapidly curable, has good depth curability and gives a cured material having good mechanical properties.
    Type: Grant
    Filed: October 29, 1990
    Date of Patent: December 3, 1996
    Assignee: Kanegafuchi Chemical Industry, Co., Ltd.
    Inventors: Takahisa Iwahara, Makato Chiba, Tomoko Takahara, Kazuya Yonezawa
  • Curing agent, preparation thereof and curable composition comprising the same
    Patent number: 5567833
    Abstract: A curable composition which comprises(C) a non-polymeric organic curing agent having at least two hydrosilyl groups in a molecule,(D) an organic polymer having at least one alkenyl group in a molecule, and(E) a hydrosilylation catalysthas rapid curability and good depth curability, and gives a homogeneous cured material having good mechanical properties.
    Type: Grant
    Filed: September 26, 1994
    Date of Patent: October 22, 1996
    Assignee: Kanegafuchi Chemical Industry Co., Ltd.
    Inventors: Takahisa Iwahara, Makoto Chiba, Tomoko Takahara, Kazuya Yonezawa
  • Curing agent, preparation thereof and curable composition comprising the same
    Patent number: 5409995
    Abstract: A curable composition which comprises (C) a non-polymeric organic curing agent having at least two hydrosilyl groups in a molecule, (D) an organic polymer having at least one alkenyl group in a molecule, and (E) a hydrosilylation catalyst has rapid curability and good depth curability, and gives a homogeneous cured material having good mechanical properties.
    Type: Grant
    Filed: March 8, 1993
    Date of Patent: April 25, 1995
    Assignee: Kanegafuchi Chemical Industry Co., Ltd.
    Inventors: Takahisa Iwahara, Makoto Chiba, Tomoko Takahara, Kazuya Yonezawa