Patents by Inventor Akira DOMOTO

Akira DOMOTO 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).

  • Resin composition, inorganic filler, direct-current power cable, and method for producing direct-current power cable
    Patent number: 11365305
    Abstract: A resin composition including a base resin containing polyolefin, and an inorganic filler, wherein the inorganic filler includes: a core part containing Mg(OH)2, and a covering part containing a plurality of MgO particles provided on an outer periphery of the core part, the content of the inorganic filler in the resin composition is 0.1 parts by mass or more and 5 parts by mass or less with respect to 100 parts by mass of the base resin; and a volume fraction of Mg(OH)2 in one particle of the inorganic filler is 10% or more and less than 50%.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: June 21, 2022
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Shuhei Yasuda, Takanori Yamazaki, Akira Domoto, Yoshinao Murata, Tomohiko Katayama
  • RESIN COMPOSITION, INORGANIC FILLER, DIRECT-CURRENT POWER CABLE, AND METHOD FOR PRODUCING DIRECT-CURRENT POWER CABLE
    Publication number: 20210032434
    Abstract: A resin composition including a base resin containing polyolefin, and an inorganic filler, wherein the inorganic filler includes: a core part containing Mg(OH)2, and a covering part containing a plurality of MgO particles provided on an outer periphery of the core part, the content of the inorganic filler in the resin composition is 0.1 parts by mass or more and 5 parts by mass or less with respect to 100 parts by mass of the base resin; and a volume fraction of Mg(OH)2 in one particle of the inorganic filler is 10% or more and less than 50%.
    Type: Application
    Filed: March 8, 2019
    Publication date: February 4, 2021
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Shuhei YASUDA, Takanori YAMAZAKI, Akira DOMOTO, Yoshinao MURATA, Tomohiko KATAYAMA