Patents by Inventor Kiyoshi Sakashita

Kiyoshi Sakashita 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).

  • Patent number: 11929511
    Abstract: A method of manufacturing a membrane-catalyst assembly including an electrolyte membrane and a catalyst layer bonded to the electrolyte membrane, the method including: a liquid application step of applying, in the atmosphere, a liquid to only a surface of the electrolyte membrane before bonding; and a thermocompression bonding step of bonding, to the catalyst layer, the electrolyte membrane to which the liquid is applied, by thermocompression bonding. Provided is a method of manufacturing a membrane-catalyst assembly including a polymer electrolyte membrane and a catalyst layer bonded to the polymer electrolyte membrane, in which the manufacturing method can achieve both the relaxation of thermocompression bonding conditions and the improvement of adhesion between the catalyst layer and the electrolyte membrane with high productivity.
    Type: Grant
    Filed: December 21, 2020
    Date of Patent: March 12, 2024
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Yuta Shintaku, Ryuta Sakashita, Daisuke Izuhara, Kiyoshi Minoura, Mei Kumagai
  • Patent number: 4160227
    Abstract: This specification discloses a thermistor composition comprising a thermistor characteristic powder, a bismuth containing borosilicate glass frit and an electrically conductive powder comprising a mixture of a noble metal powder and ruthenium oxide powder which is selected from RuO.sub.2 + Ag and RuO.sub.2 + Au wherein the mixing ratio of the metal oxide thermistor characteristic powder, the glass and the electrically conductive powder is in the area of the quadrilateral ABCD in the triangular diagram of the accompanying FIG.
    Type: Grant
    Filed: March 18, 1977
    Date of Patent: July 3, 1979
    Assignee: Hitachi, Ltd.
    Inventors: Akira Ikegami, Hiromi Tosaki, Jun Yamada, Teruo Mozume, Ichiro Tsubokawa, Kiyoshi Sakashita
  • Patent number: D243171
    Type: Grant
    Filed: May 28, 1975
    Date of Patent: January 25, 1977
    Assignee: Sharp Corporation
    Inventor: Kiyoshi Sakashita