Patents by Inventor Sayaka Takeda

Sayaka Takeda 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).

  • Epoxy resin composition, method for producing same, and semiconductor device using same
    Patent number: 9123689
    Abstract: Disclosed is an epoxy resin composition which has excellent workability and excellent thermal resistance after curing. The epoxy resin composition contains a compound which has a specific imide structure obtained by reacting a diamine having a phenolic hydroxyl group, such as 2,2-bis(3-amino-4-hydroxyphenyl)hexafluoropropane (6FAP), with a tetracarboxylic dianhydride, and which has a number average molecular weight of 1,000 to 5,000; and a compound having at least two epoxy groups, such as a bisphenol A type epoxy resin.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: September 1, 2015
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Sayaka Takeda, Masao Tomikawa
  • EPOXY RESIN COMPOSITION, METHOD FOR PRODUCING SAME, AND SEMICONDUCTOR DEVICE USING SAME
    Publication number: 20140005318
    Abstract: Disclosed is an epoxy resin composition which has excellent workability and excellent thermal resistance after curing. The epoxy resin composition contains a compound which has a specific imide structure obtained by reacting a diamine having a phenolic hydroxyl group, such as 2,2-bis(3-amino-4-hydroxyphenyl)hexafluoropropane (6FAP), with a tetracarboxylic dianhydride, and which has a number average molecular weight of 1,000 to 5,000; and a compound having at least two epoxy groups, such as a bisphenol A type epoxy resin.
    Type: Application
    Filed: March 15, 2012
    Publication date: January 2, 2014
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Sayaka Takeda, Masao Tomikawa
  • Siloxane-Based Coating Material, Optical Article, and Production Method of Siloxane-Based Coating Material
    Publication number: 20070266896
    Abstract: The invention provides a coating material containing silica fine particles, a siloxane compound, and a curing agent and giving an even coating film in the case it is used for forming a coating film. The invention gives a siloxane-based coating material excellent in storage stability and giving high surface hardness of a coating film when the coating material is used for forming the coating film. The invention also provides an optical article excellent in anti-reflection property and scratching resistance.
    Type: Application
    Filed: June 10, 2005
    Publication date: November 22, 2007
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Mitsuhito Suwa, Hiroshi Hosono, Sayaka Takeda, Takashi Taniguchi, Hisashi Minamiguchi