Patents by Inventor Takafumi Kimata

Takafumi Kimata 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).

  • Carbon membrane and method for pervaporation separation
    Patent number: 8945390
    Abstract: A carbon membrane formed by carbonizing a phenol resin having at least one kind of atomic groups among a methylene bond, a dimethylene ether bond, and a methylol group, wherein the total mole content of the atomic groups is 100 to 180% with respect to the phenolic nuclei. A pervaporation separation method using the carbon membrane is also disclosed.
    Type: Grant
    Filed: September 17, 2012
    Date of Patent: February 3, 2015
    Assignee: NGK Insulators, Ltd.
    Inventors: Akimasa Ichikawa, Kenji Suzuki, Naoto Kinoshita, Yoshinori Isoda, Takafumi Kimata
  • TiSiCbased material, electrode, spark plug and manufacturing method thereof
    Patent number: 8877099
    Abstract: The present invention provides a Ti3SiC2 based material that exhibits excellent arc resistance, an electrode, a spark plug, and methods of manufacturing the same. A Ti3SiC2 based material according to the present invention includes Ti3SiC2 as a main phase, the Ti3SiC2 based material having a TiC content of 0.5 mass % or less and an open porosity of 0.5% or less. It may be preferable that 0 to 30 mol % of Si in the main phase Ti3SiC2 be substituted with Al. A spark plug according to the present invention includes an electrode formed using the Ti3SiC2 based material.
    Type: Grant
    Filed: January 26, 2012
    Date of Patent: November 4, 2014
    Assignee: NGK Insulators, Ltd.
    Inventors: Tetsuya Hattori, Takafumi Kimata, Yoshimasa Kobayashi
  • METHOD FOR PRODUCING CARBON MEMBRANE
    Publication number: 20140199478
    Abstract: Provided is a method of producing a carbon membrane including dipping a porous support in a suspension of a phenolic resin or a suspension of a phenolic resin precursor, drying the resulting support to form a membrane made of the phenolic resin or the phenolic resin precursor, and heat treating and thereby carbonizing the resulting membrane into a carbon membrane.
    Type: Application
    Filed: March 17, 2014
    Publication date: July 17, 2014
    Applicant: NGK Insulators, Ltd.
    Inventors: Akimasa ICHIKAWA, Tetsuya SAKAI, Naoto KINOSHITA, Yoshinori ISODA, Takafumi KIMATA
  • Ti3SiC2 BASED MATERIAL, ELECTRODE, SPARK PLUG AND MANUFACTURING METHOD THEREOF
    Publication number: 20120186723
    Abstract: The present invention provides a Ti3SiC2 based material that exhibits excellent arc resistance, an electrode, a spark plug, and methods of manufacturing the same. A Ti3SiC2 based material according to the present invention includes Ti3SiC2 as a main phase, the Ti3SiC2 based material having a TiC content of 0.5 mass % or less and an open porosity of 0.5% or less. It may be preferable that 0 to 30 mol % of Si contained in the main phase Ti3SiC2 be substituted with Al. A spark plug according to the present invention includes an electrode formed using the Ti3SiC2 based material.
    Type: Application
    Filed: January 26, 2012
    Publication date: July 26, 2012
    Applicant: NGK Insulators, Ltd.
    Inventors: Tetsuya HATTORI, Takafumi Kimata, Yoshimasa Kobayashi