Patents by Inventor Yoshinori Gondoh

Yoshinori Gondoh 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).

  • PREPREG
    Publication number: 20120177911
    Abstract: There is provided a prepreg for electronic materials which has superior flame retardancy and heat resistance. The prepreg relevant to the present invention comprises a glass composition filler which has a mean particle diameter of 2.0 ?m or less and a CaO content of 5% by mass or more, a glass cloth, and a matrix resin, characterized in that an amount of said glass composition filler to be filled is 10% by volume to 70% by volume relative to the total volume of said glass composition filler and said matrix resin.
    Type: Application
    Filed: September 14, 2010
    Publication date: July 12, 2012
    Inventors: Yasuyuki Kimura, Yoshinori Gondoh, Shinichiro Tachibana
  • Double glass cloth, and prepreg and substrate for printed wiring board using the glass cloth
    Publication number: 20070190879
    Abstract: A double glass cloth for a printed wiring board, characterized in that it is a glass cloth composed of warps and wefts and has a double structure comprising a face side structure and a back side structure, wherein said face side structure and said back side structure are bound with a woven structure into one piece.
    Type: Application
    Filed: February 8, 2005
    Publication date: August 16, 2007
    Inventors: Yoshinori Gondoh, Makoto Someya, Yasuyuki Kimura
  • Glass cloth and printed wiring board
    Patent number: 7049253
    Abstract: The present invention is (1) a glass cloth composed of a group of warp yarns and a group of weft yarns wherein one of the group of the warp and weft yarns are arranged with substantially no gap between the yarns, and, in that group, a width A (?m) of a cross-section of the yarn arranged with substantially no gap, a single-fiber diameter L (?m) of the yarn, the number N of single-fibers constituting the yarn and a weaving density C (ends/25 mm) of the glass cloth composed of the yarns satisfy the following equation (1-a): C×A/(25×L×N)?1.
    Type: Grant
    Filed: February 4, 2000
    Date of Patent: May 23, 2006
    Assignee: Asahi-Schwebel Co., Ltd.
    Inventors: Yasuyuki Kimura, Yoshinori Gondoh, Yoshinobu Fujimura