Patents by Inventor Shinichiro Kai

Shinichiro Kai 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).

  • Polymeric dielectrics
    Patent number: 5087679
    Abstract: Polymeric dielectrics, which comprise 60 to 79 % by mole of repeating units derived from vinylidene fluoride, 18 to 22 % by mole of repeating units derived from trifluoroethylene and 3 to 22 % by mole of repeating units derived from chlorotrifluoroethylene, have high dielectric constant.
    Type: Grant
    Filed: April 4, 1990
    Date of Patent: February 11, 1992
    Assignee: Daikin Industries Ltd.
    Inventors: Hiroshi Inukai, Noriko Kawai, Takahiro Kitahara, Shinichiro Kai, Motonobu Kubo
  • Process for preparing filler-containing polytetrafluoroethylene fine powder
    Patent number: 4440879
    Abstract: A process for preparing filler-containing polytetrafluoroethylene fine powder which comprises mixing together an aqueous dispersion of particles of polytetrafluoroethylene and an aqueous dispersion of particles of a filler adsorbed with polyvalent cation at the surfaces so as to be charged positively in the presence of an anionic surfactant and a water-immiscible organic liquid to coagulate the polytetrafluoroethylene particles and the filler particles in combination and recovering the coagulated particles from the resultant dispersion mixture, said filler particles being per se chargeable negatively in water.
    Type: Grant
    Filed: February 18, 1981
    Date of Patent: April 3, 1984
    Assignee: Daikin Kogyo Co., Ltd.
    Inventors: Shoji Kawachi, Katsutoshi Yamamoto, Shinichiro Kai
  • 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