Patents by Inventor Kenichi Yasusaka

Kenichi Yasusaka 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).

  • Liquid crystalline polyester resin composition
    Patent number: 8123978
    Abstract: The present invention provides a liquid crystalline polyester resin composition which imparts a good mold-releasability during molding and further is improved in heat resistance. Specifically, with 100 parts by weight of a liquid crystalline polyester resin is added 0.001 to 1 part by weight of a fatty acid ester which is a tetraester of pentaerythritol and a C10 to C32 higher fatty acid and has an acid value ranging from 0.01 to 0.5 and a hydroxyl value ranging from 0.01 to 5.
    Type: Grant
    Filed: October 28, 2008
    Date of Patent: February 28, 2012
    Assignee: Polyplastics Co., Ltd.
    Inventors: Kazufumi Watanabe, Hirokazu Ohshiba, Raita Nishikawa, Kenichi Yasusaka
  • LIQUID CRYSTALLINE POLYESTER RESIN COMPOSITION
    Publication number: 20100237284
    Abstract: The present invention provides a liquid crystalline polyester resin composition which imparts a good mold-releasability during molding and further is improved in heat resistance. Specifically, with 100 parts by weight of a liquid crystalline polyester resin is added 0.001 to 1 part by weight of a fatty acid ester which is a tetraester of pentaerythritol and a C10 to C32 higher fatty acid and has an acid value ranging from 0.01 to 0.5 and a hydroxyl value ranging from 0.01 to 5.
    Type: Application
    Filed: October 28, 2008
    Publication date: September 23, 2010
    Applicant: Polyplastics Co., Ltd.
    Inventors: Kazufumi Watanabe, Hirokazu Ohshiba, Raita Nishikawa, Kenichi Yasusaka
  • Screw-type kneading /extruding machine
    Publication number: 20060269640
    Abstract: A screw-type kneading/extruding machine according to the present invention is constructed such that a screw (3) that is positioned in correspondence with a vent opening (4) formed in a cylinder (2) has a screw piece (10) with surface-renewing ability. The structure enables deaeration without involving temperature rise and quality deterioration of a raw material.
    Type: Application
    Filed: April 8, 2004
    Publication date: November 30, 2006
    Inventors: Kenichi Yasusaka, Jun Kakizaki, Norimasa Oda, Yoshihiko Iwamoto