Patents by Inventor Ryosuke YANAKA

Ryosuke YANAKA 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).

  • Publication number: 20240059053
    Abstract: An electronic device packaging sheet including a substrate sheet having at least one substrate layer including: a thermoplastic resin (I); and a resin (II) which includes at least one copolymer selected from a (meth)acrylic acid alkyl ester copolymer (A) and a styrene-acrylonitrile copolymer (B) that have a weight-average molecular weight of 700,000-4,300,000. The substrate sheet has at least one substrate layer comprising the thermoplastic resin (I) at 70-99 mass % and the resin (II) at 1-30 mass %.
    Type: Application
    Filed: December 14, 2021
    Publication date: February 22, 2024
    Applicant: DENKA COMPANY LIMITED
    Inventors: Takeshi SAITO, Ikuka INODA, Ryosuke YANAKA
  • Publication number: 20240010806
    Abstract: A resin sheet for molding includes a base material sheet, and a surface layer provided on at least one surface of the base material sheet and including silicone, wherein the silicone content in the surface layer is 0.3 to 4.0 g/m2, and wherein the base material sheet is formed of a resin composition including 29 to 65 parts by mass of a Styrene-conjugated diene block copolymer (A), 25 to 60 parts by mass of a polystyrene resin (B), and 8 to 20 parts by mass of a high-impact polystyrene resin (C) (provided that a total amount of the component (A), the component (B), and the component (C) is 100 parts by mass). A carrier tape 100 is a molded body 16 of the resin sheet, wherein an accommodation portion 20 capable of accommodating an article is provided.
    Type: Application
    Filed: June 7, 2021
    Publication date: January 11, 2024
    Applicant: Denka Company Limited
    Inventors: Takeshi SAITO, Ryosuke YANAKA
  • Publication number: 20230279190
    Abstract: A resin sheet is for molding, has an impact strength of 1.0 J or greater in a DuPont impact test, and has a value of 80 N/m2 or smaller obtained through integration from an origin point to a strain when fracture has occurred in a stress strain curve obtained in a tensile test. A carrier tape 100 is a molded body 16 of the resin sheet, wherein an accommodation portions 20 capable of accommodating an article is provided.
    Type: Application
    Filed: June 7, 2021
    Publication date: September 7, 2023
    Applicant: Denka Company Limited
    Inventors: Ryosuke YANAKA, Takeshi SAITO, Kota SAWAGUCHI
  • Patent number: 11701874
    Abstract: A layered sheet has a substrate layer and surface layers provided on both surfaces of the substrate layer, wherein the surface layers contain 50 to 90 mass % of component (A) defined below and 10 to 50 mass % of component (B) defined below relative to the overall mass of the surface layer; the substrate layer is composed of a vinyl aromatic hydrocarbon resin composition containing monomer units derived from conjugated dienes; and a percentage of the monomer units derived from the conjugated dienes in the substrate layer is 6 to 14 mass % relative to all monomer units in the vinyl aromatic hydrocarbon-based resin composition. Component (A) is a rubber-modified (meth)acrylic acid ester-vinyl aromatic hydrocarbon copolymer in which the percentage of a conjugated diene rubber component is 5 to 25 mass %. Component (B) is a polymeric antistatic agent.
    Type: Grant
    Filed: April 16, 2020
    Date of Patent: July 18, 2023
    Assignee: DENKA COMPANY LIMITED
    Inventors: Ryosuke Yanaka, Junpei Fujiwara
  • Publication number: 20230084488
    Abstract: A layered sheet 10 includes a substrate layer 1, and surface layers 2 and 3 configured to be layered on at least one surface of the substrate layer 1. The substrate layer 1 contains a first thermoplastic resin and inorganic fillers. The surface layers 2 and 3 contain a second thermoplastic resin and a conductive material. A content of the inorganic fillers in the substrate layer 1 is 0.3 to 28 mass % based on a total amount of the substrate layer.
    Type: Application
    Filed: March 8, 2021
    Publication date: March 16, 2023
    Applicant: DENKA COMPANY LIMITED
    Inventors: Yuko FUKUDA, Junpei FUJIWARA, Ryosuke YANAKA
  • Publication number: 20220194067
    Abstract: A layered sheet has a substrate layer and surface layers provided on both surfaces of the substrate layer, wherein the surface layers contain 50 to 90 mass % of component (A) defined below and 10 to 50 mass % of component (B) defined below relative to the overall mass of the surface layer; the substrate layer is composed of a vinyl aromatic hydrocarbon resin composition containing monomer units derived from conjugated dienes; and a percentage of the monomer units derived from the conjugated dienes in the substrate layer is 6 to 14 mass % relative to all monomer units in the vinyl aromatic hydrocarbon-based resin composition. Component (A) is a rubber-modified (meth)acrylic acid ester-vinyl aromatic hydrocarbon copolymer in which the percentage of a conjugated diene rubber component is 5 to 25 mass %. Component (B) is a polymeric antistatic agent.
    Type: Application
    Filed: April 16, 2020
    Publication date: June 23, 2022
    Applicant: DENKA COMPANY LIMITED
    Inventors: Ryosuke YANAKA, Junpei FUJIWARA
  • Patent number: 11292233
    Abstract: A laminated sheet with a cover material, an adhesive cover tape, and an electronic component packaging container molded. A laminated sheet having a surface layer on both sides of a substrate layer, and the substrate layer includes 30 to 70 mass % of a component mentioned below, 70 to 30 mass % of a component mentioned below, and 0 to 30 mass % of a recycled material of the laminated sheet to the total mass of the substrate layer. The component is a rubber modified (meth)acrylic acid ester-vinyl aromatic hydrocarbon copolymer having a conjugated diene rubber component content of 5 to 15 mass %. The component is a vinyl aromatic hydrocarbon-conjugated diene block copolymer containing 15 to 30 mass % of monomeric units derived from conjugated dienes. The component is at least one polymer selected from the group consisting of a vinyl aromatic hydrocarbon polymer and a rubber modified vinyl aromatic hydrocarbon polymer.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: April 5, 2022
    Assignee: DENKA COMPANY LIMITED
    Inventors: Ryosuke Yanaka, Yusuke Masuda
  • Publication number: 20210162721
    Abstract: A laminated sheet with a cover material, an adhesive cover tape, and an electronic component packaging container molded. A laminated sheet having a surface layer on both sides of a substrate layer, and the substrate layer includes 30 to 70 mass % of a component mentioned below, 70 to 30 mass % of a component mentioned below, and 0 to 30 mass % of a recycled material of the laminated sheet to the total mass of the substrate layer. The component is a rubber modified (meth)acrylic acid ester-vinyl aromatic hydrocarbon copolymer having a conjugated diene rubber component content of 5 to 15 mass %. The component is a vinyl aromatic hydrocarbon-conjugated diene block copolymer containing 15 to 30 mass % of monomeric units derived from conjugated dienes. The component is at least one polymer selected from the group consisting of a vinyl aromatic hydrocarbon polymer and a rubber modified vinyl aromatic hydrocarbon polymer.
    Type: Application
    Filed: January 23, 2019
    Publication date: June 3, 2021
    Applicant: DENKA COMPANY LIMITED
    Inventors: Ryosuke YANAKA, Yusuke MASUDA