Patents by Inventor Takafumi Aizawa

Takafumi Aizawa 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).

  • Adhesive, Bonded Body, and Method for Producing Press-Bonded Body
    Publication number: 20230051550
    Abstract: An embodiment of the present invention relates to an adhesive, a bonded body or a method for producing a press-bonded body. The adhesive includes a fluoroelastomer and is for bonding base materials in the presence of carbon dioxide in a liquid state, a gas-liquid mixture state, or a nearly liquid state. The bonded body is such that two or more base materials are bonded to each other with the adhesive. The method for producing a press-bonded body includes a step 1 in which two or more base materials are press-bonded in the presence of the adhesive including a fluoroelastomer and carbon dioxide in a liquid state, a gas-liquid mixture state, or a nearly liquid state.
    Type: Application
    Filed: December 15, 2020
    Publication date: February 16, 2023
    Inventors: Yoshihiro Setoguchi, Naoki Watanabe, Takafumi Aizawa
  • Press-Bonded Body and Method for Producing the Same
    Publication number: 20220282412
    Abstract: A press-bonded body or a method for producing the same is provided, such that the press-bonded body is a press-bonded body of at least one of a base material selected from the group consisting of non-woven fabric, stretched porous film, and fiber. The base material contains a fluorine resin (except for polytetrafluoroethylene) having a —CF2- group content of 85% by mass or greater. Polytetrafluoroethylene fibrils bond fibers constitute the base material, and in relation to the entirety of the fibrils, the proportion of the number of fibrils that are oriented at an angle of 45° to 90° relative to the direction of the fibers constituting the base material is 50% or greater.
    Type: Application
    Filed: July 16, 2020
    Publication date: September 8, 2022
    Inventors: Satomi Kato, Yoshihiro Setoguchi, Takafumi Aizawa
  • Resin composition, molded article, laminate, gas barrier material, coating material and adhesive
    Patent number: 11292893
    Abstract: A resin composition is provided that contains a urethane resin and a smectite with partially immobilized lithium.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: April 5, 2022
    Assignees: DIC Corporation, National Institute of Advanced Industrial Science and Technology
    Inventors: Yasutaka Oka, Tomoaki Harada, Kumiko Akiba, Yusho Usami, Michiya Nakashima, Takeo Ebina, Ryo Ishii, Takafumi Aizawa
  • Resin composition, molded article, laminate, gas barrier material, coating material, and adhesive
    Patent number: 11286384
    Abstract: The present invention, in an aspect, provides a resin composition that contains a vinyl polymer and a smectite with partially immobilized lithium.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: March 29, 2022
    Assignees: DIC Corporation, National Institute of Advanced Industrial Science and Technology
    Inventors: Yusaku Goto, Tomoki Dohi, Michiya Nakashima, Yusho Usami, Takeo Ebina, Ryo Ishii, Takafumi Aizawa
  • Resin composition, molded body, laminate, gas barrier material, coating material, and adhesive
    Patent number: 11015013
    Abstract: A resin composition contains a polyester polyol and a smectite with partially immobilized lithium.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: May 25, 2021
    Assignees: DIC Corporation, National Institute of Advanced Industrial Science and Technology
    Inventors: Yusho Usami, Tomoaki Harada, Michiya Nakashima, Takeo Ebina, Ryo Ishii, Takafumi Aizawa
  • RESIN COMPOSITION, MOLDED BODY, LAMINATE, GAS BARRIER MATERIAL, COATING MATERIAL, AND ADHESIVE
    Publication number: 20200095366
    Abstract: A resin composition contains a polyester polyol and a smectite with partially immobilized lithium.
    Type: Application
    Filed: December 19, 2017
    Publication date: March 26, 2020
    Inventors: Yusho Usami, Tomoaki Harada, Michiya Nakashima, Takeo Ebina, Ryo Ishii, Takafumi Aizawa
  • RESIN COMPOSITION, MOLDED ARTICLE, LAMINATE, GAS BARRIER MATERIAL, COATING MATERIAL, AND ADHESIVE
    Publication number: 20200002527
    Abstract: The present invention, in an aspect, provides a resin composition that contains a vinyl polymer and a smectite with partially immobilized lithium.
    Type: Application
    Filed: March 14, 2018
    Publication date: January 2, 2020
    Inventors: Yusaku Goto, Tomoki Dohi, Michiya Nakashima, Yusho Usami, Takeo Ebina, Ryo Ishii, Takafumi Aizawa
  • RESIN COMPOSITION, MOLDED ARTICLE, LAMINATE, COATING MATERIAL, AND ADHESIVE
    Publication number: 20200002465
    Abstract: A resin composition contains an epoxy compound and a smectite with partially immobilized lithium.
    Type: Application
    Filed: March 13, 2018
    Publication date: January 2, 2020
    Inventors: Tomoaki Harada, Yusho Usami, Michiya Nakashima, Takeo Ebina, Ryo Ishii, Takafumi Aizawa
  • RESIN COMPOSITION, MOLDED ARTICLE, LAMINATE, GAS BARRIER MATERIAL, COATING MATERIAL AND ADHESIVE
    Publication number: 20190382558
    Abstract: A resin composition is provided that contains a urethane resin and a smectite with partially immobilized lithium.
    Type: Application
    Filed: March 14, 2018
    Publication date: December 19, 2019
    Applicants: DIC Corporation, National Institute of Advanced Industrial Science and Technology
    Inventors: Yasutaka Oka, Tomoaki Harada, Kumiko Akiba, Yusho Usami, Michiya Nakashima, Takeo Ebina, Ryo Ishii, Takafumi Aizawa