Patents by Inventor Eisaku SUMINO

Eisaku SUMINO 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).

  • Laminate
    Patent number: 11780212
    Abstract: The present invention aims to provide a laminate in which a fluororesin layer and a fluororubber layer are firmly bonded. The present invention relates to a laminate including: a fluororubber layer (A); and a fluororesin layer (B) stacked on the fluororubber layer (A), the fluororubber layer (A) being formed from a fluororubber composition, the fluororubber composition containing a fluororubber, a low molecular weight polytetrafluoroethylene, and a multifunctional compound, the amount of the multifunctional compound being 5 parts by mass or more relative to 100 parts by mass of the fluororubber.
    Type: Grant
    Filed: April 15, 2015
    Date of Patent: October 10, 2023
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Yuuki Kuwajima, Eisaku Sumino, Takeshi Inaba, Tsuyoshi Noguchi
  • COMPOSITION, CROSSLINKED RUBBER MOLDED ARTICLE AND FLUORINE-CONTAINING POLYMER
    Publication number: 20210292450
    Abstract: A composition including a fluorine-containing polymer and a cross-linking agent, wherein the fluorine-containing polymer contains a vinylidene fluoride unit, a unit of a fluorine-containing monomer (1) represented by the following general formula (1): CHX1?CX2Rf ??(1) wherein one of X1 and X2 is H, the other is F, and Rf is a linear or branched fluoroalkyl group having 1 to 12 carbon atoms, and a unit of a monomer providing a crosslinking site. The monomer providing a crosslinking site is a monomer having at least one crosslinkable group selected from a cyano group, a carboxyl group, an alkoxycarbonyl group and a hydroxyl group. Also disclosed is a crosslinked rubber molded article obtained by crosslinking the composition.
    Type: Application
    Filed: July 22, 2019
    Publication date: September 23, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Takahiro FURUTANI, Rina TAMAI, Eisaku SUMINO, Yusuke KAMIYA, Junpei TERADA, Masaki IRIE
  • Fluoroelastomer composition and molded article
    Patent number: 10138352
    Abstract: The invention provides a fluoroelastomer composition excellent in heat resistance. The fluoroelastomer composition of the present invention contains a fluoroelastomer and a specific compound.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: November 27, 2018
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Eisaku Sumino, Tsuyoshi Noguchi, Satomi Uraoka
  • FLUOROELASTOMER COMPOSITION AND MOLDED ARTICLE
    Publication number: 20170283585
    Abstract: The invention provides a fluoroelastomer composition excellent in heat resistance. The fluoroelastomer composition of the present invention contains a fluoroelastomer and a specific compound.
    Type: Application
    Filed: September 9, 2015
    Publication date: October 5, 2017
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Eisaku SUMINO, Tsuyoshi NOGUCHI, Satomi URAOKA
  • LAMINATE
    Publication number: 20170043560
    Abstract: The present invention aims to provide a laminate in which a fluororesin layer and a fluororubber layer are firmly bonded. The present invention relates to a laminate including: a fluororubber layer (A); and a fluororesin layer (B) stacked on the fluororubber layer (A), the fluororubber layer (A) being formed from a fluororubber composition, the fluororubber composition containing a fluororubber, a low molecular weight polytetrafluoroethylene, and a multifunctional compound, the amount of the multifunctional compound being 5 parts by mass or more relative to 100 parts by mass of the fluororubber.
    Type: Application
    Filed: April 15, 2015
    Publication date: February 16, 2017
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Yuuki KUWAJIMA, Eisaku SUMINO, Takeshi INABA, Tsuyoshi NOGUCHI