Patents by Inventor Eiji FUKUYAMA

Eiji FUKUYAMA 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).

  • Laminated foam sheet
    Patent number: 11981787
    Abstract: The present invention provides a laminated expanded sheet excellent in strength and formability. More specifically, the present invention relates to a laminated expanded sheet comprising a laminate of a resin expanded layer and a resin non-expanded layer, wherein the resin expanded layer is provided as an outermost layer, the laminated expanded sheet has a bending strength of 5 MPa or more, and an arithmetic average roughness of a surface formed of the resin expanded layer is 3 ?m or more and 10 ?m or less.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: May 14, 2024
    Assignee: SEKISUI KASEI CO., LTD.
    Inventors: Shota Endo, Eiji Fukuyama, Ayano Mori
  • METHOD FOR PRODUCING BIODEGRADABLE RESIN EXPANDED SHEET
    Publication number: 20220169817
    Abstract: The present invention relates to a method for producing a biodegradable resin expanded sheet, by which a biodegradable resin expanded sheet immediately after extrusion is brought into a predetermined cooled state in an extrusion expansion method, whereby good formability can be exerted.
    Type: Application
    Filed: March 25, 2020
    Publication date: June 2, 2022
    Applicant: SEKISUI KASEI CO., LTD.
    Inventors: Shota ENDO, Eiji FUKUYAMA, Ayano MORI
  • LAMINATED FOAM SHEET
    Publication number: 20220145035
    Abstract: The present invention provides a laminated expanded sheet excellent in strength and formability. More specifically, the present invention relates to a laminated expanded sheet comprising a laminate of a resin expanded layer and a resin non-expanded layer, wherein the resin expanded layer is provided as an outermost layer, the laminated expanded sheet has a bending strength of 5 MPa or more, and an arithmetic average roughness of a surface formed of the resin expanded layer is 3 ?m or more and 10 ?m or less.
    Type: Application
    Filed: March 25, 2020
    Publication date: May 12, 2022
    Applicant: SEKISUI KASEI CO., LTD.
    Inventors: Shota ENDO, Eiji FUKUYAMA, Ayano MORI
  • POLYLACTIC ACID RESIN EXPANDED SHEET, RESIN MOLDED ARTICLE, AND METHOD FOR PRODUCING POLYLACTIC ACID RESIN EXPANDED SHEET
    Publication number: 20220081554
    Abstract: The present invention provides a polylactic acid resin expanded sheet useful for forming a resin molded article that can easily retain a predetermined shape. More specifically, the present invention provides a polylactic acid resin expanded sheet including a crystal nucleating agent and a crystallization accelerator at a predetermined ratio, which is prepared so that a crystallization degree becomes the predetermined state.
    Type: Application
    Filed: March 24, 2020
    Publication date: March 17, 2022
    Applicant: SEKISUI KASEI CO., LTD.
    Inventors: Eiji FUKUYAMA, Shota ENDO, Ayano MORI
  • Modified polypropylene-based resin, polypropylene-based resin expanded sheet, expanded resin-made container, and method for producing modified polypropylene-based resin
    Patent number: 10308747
    Abstract: To obtain a modified polypropylene-based resin which shows specific viscoelasticity and from which an expanded sheet having a low open cell ratio can be obtained.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: June 4, 2019
    Assignee: SEKISUI PLASTICS CO., LTD.
    Inventors: Kohei Tazumi, Eiji Fukuyama, Michihiro Hayashi, Shota Endo, Masashi Yamashita
  • MODIFIED POLYPROPYLENE-BASED RESIN, POLYPROPYLENE-BASED RESIN EXPANDED SHEET, EXPANDED RESIN-MADE CONTAINER, AND METHOD FOR PRODUCING MODIFIED POLYPROPYLENE-BASED RESIN
    Publication number: 20170218109
    Abstract: To obtain a modified polypropylene-based resin which shows specific viscoelasticity and from which an expanded sheet having a low open cell ratio can be obtained.
    Type: Application
    Filed: September 29, 2015
    Publication date: August 3, 2017
    Applicant: SEKISUI PLASTICS CO., LTD.
    Inventors: Kohei TAZUMI, Eiji FUKUYAMA, Michihiro HAYASHI, Shota ENDO, Masashi YAMASHITA