Patents by Inventor Shuhei Simasaki

Shuhei Simasaki 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).

  • Powders of tetrafluoroethylene copolymer and process for preparing the same
    Patent number: 4977221
    Abstract: Powders of tetrafluoroethylene copolymer having a non-spherical particle shape, a frictional packing ratio of 20 to 200% and an average particle size of 5 to 500 .mu.m. The powders are useful for powder coatings, particularly roto-molding, roto-lining and electrostatic coating.
    Type: Grant
    Filed: December 28, 1989
    Date of Patent: December 11, 1990
    Assignee: Daikin Industries, Ltd.
    Inventors: Tatsushiro Yoshimura, Nobuyuki Tomihashi, Shuhei Simasaki
  • Powders of tetrafluoroethylene copolymer and process for preparing the same
    Patent number: 4898779
    Abstract: Powders of tetrafluoroethylene copolymer having a non-spherical particle shape, a frictional packing ratio of 20 to 100% and an average particle size of 5 to 500 .mu.m. The powders are useful for powder coatings, particularly roto-moulding, roto-lining and electrostatic coating.
    Type: Grant
    Filed: December 21, 1987
    Date of Patent: February 6, 1990
    Assignee: Daikin Industries Ltd.
    Inventors: Tatsushiro Yoshimura, Nobuyuki Tomihashi, Shuhei Simasaki
  • Method of making a chemical-resistant diaphragm thereof
    Patent number: 4111866
    Abstract: A chemical-resistant diaphragm composed of a fluorine-containing polymer and potassium titanate and a method for the manufacture of said diaphragm by the steps of adding titanium oxide or titanic acid to a fluorine-containing polymer and heating the resultant mixture in the presence of potassium hydroxide.
    Type: Grant
    Filed: April 20, 1977
    Date of Patent: September 5, 1978
    Assignees: Agency of Industrial Science and Technology, Daikin Kogyo Co., Ltd.
    Inventors: Eiichi Torikai, Youji Kawami, Shinichiro Kai, Mutsusuke Namba, Shuhei Simasaki