Patents by Inventor Kazuaki TOKUMO

Kazuaki TOKUMO 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: 11434356
    Abstract: Disclosed is a propylene-based resin composition comprising more than 15 parts by mass and 40 parts by mass or less of an ethylene/?-olefin copolymer (E1) and 4 to 20 parts by mass of an ethylene/?-olefin/diene copolymer (E2), and comprising also a propylene-based polymer (P1) having an amount of a n-decane-soluble part at 23° C. of 5 to 25% by mass, wherein the ethylene content of the n-decane-soluble part is more than 40% by mass and 60% by mass or less, a propylene homopolymer (P2) and an inorganic filler (F) [providing that the total amount of the components (P1), (P2), (E1), (E2) and (F) is taken as 100 parts by weight]. The propylene-based resin composition is capable of producing a molded article which is excellent in mechanical properties, unnoticeable flow marks, low gloss.
    Type: Grant
    Filed: April 24, 2019
    Date of Patent: September 6, 2022
    Assignees: PRIME POLYMER CO., LTD., NISSAN MOTOR CO., LTD.
    Inventors: Shuichi Inoue, Satoru Kinouchi, Kazuaki Tokumo, Takao Jouduka
  • Publication number: 20210246289
    Abstract: Disclosed is a propylene-based resin composition comprising more than 15 parts by mass and 40 parts by mass or less of an ethylene/?-olefin copolymer (E1) and 4 to 20 parts by mass of an ethylene/?-olefin/diene copolymer (E2), and comprising also a propylene-based polymer (P1) having an amount of a n-decane-soluble part at 23° C. of 5 to 25% by mass, wherein the ethylene content of the n-decane-soluble part is more than 40% by mass and 60% by mass or less, a propylene homopolymer (P2) and an inorganic filler (F) [providing that the total amount of the components (P1), (P2), (E1), (E2) and (F) is taken as 100 parts by weight]. The propylene-based resin composition is capable of producing a molded article which is excellent in mechanical properties, unnoticeable flow marks, low gloss.
    Type: Application
    Filed: April 24, 2019
    Publication date: August 12, 2021
    Applicants: PRIME POLYMER CO., LTD., NISSAN MOTOR CO., LTD.
    Inventors: Shuichi INOUE, Satoru KINOUCHI, Kazuaki TOKUMO, Takao JOUDUKA