Patents by Inventor Kei Kuramoto

Kei Kuramoto 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: 20210130268
    Abstract: The present disclosure provides a method for producing a reaction gas containing R-1132(E) with selectivity higher than that of known methods. Specifically, the present disclosure provides a method for producing a reaction gas containing (E)-1,2-difluoroethylene (R-1132(E)), (1) the method comprising a step of subjecting a starting material gas containing one or more fluoromethanes selected from the group consisting of chlorodifluoromethane (R-22), difluoromethane (R-32), and fluoromethane (R-41) to a reaction that involves thermal decomposition to obtain the reaction gas, and (2) the starting material gas having a water vapor content of 1 volume % or less.
    Type: Application
    Filed: January 14, 2021
    Publication date: May 6, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Tatsuya TAKAKUWA, Osamu YAMAMOTO, Katsuki FUJIWARA, Kei KURAMOTO, Yuuta HASUMOTO
  • Publication number: 20210107850
    Abstract: The present disclosure provides a method for producing a reaction gas containing R-1132(E) with selectivity higher than that of known methods. Specifically, the present disclosure provides a method for producing a reaction gas containing (E)-1,2-difluoroethylene (R-1132(E)), (1) the method comprising a step of subjecting a starting material gas containing one or more fluoromethanes selected from the group consisting of chlorodifluoromethane (R-22), difluoromethane (R-32), and fluoromethane (R-41) to a reaction that involves thermal decomposition to obtain the reaction gas, and (2) the starting material gas having a water vapor content of 1 volume % or less.
    Type: Application
    Filed: December 22, 2020
    Publication date: April 15, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Tatsuya TAKAKUWA, Osamu YAMAMOTO, Katsuki FUJIWARA, Kei KURAMOTO, Yuuta HASUMOTO
  • Publication number: 20210079279
    Abstract: The present disclosure provides a composition comprising a refrigerant characterized by having a GWP lower than that of R410A and a COP equivalent to that of R410A. Specifically, the present disclosure provides a composition comprising a refrigerant, the refrigerant comprising CO2 (R744) and at least one compound A selected from the group consisting of trans-1,2-difluoroethylene [(E)-HFO-1132], cis-1,2-difluoroethylene [(Z)-HFO-1132], fluoroethylene (HFO-1141), and 3,3,3-trifluoropropyne (TFP).
    Type: Application
    Filed: April 18, 2019
    Publication date: March 18, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Kazuhiro TAKAHASHI, Shun OHKUBO, Mitsushi ITANO, Tatsuya TAKAKUWA, Kei KURAMOTO
  • Publication number: 20120270729
    Abstract: The present invention relates to a catalyst for purification of nitrogen oxides, the catalyst comprising a solid in which Au and Fe atoms exist in a state of being close. In accordance with the present invention, a catalyst that can demonstrate NOx purification performance at low temperatures and/or in an oxidative atmosphere is provided.
    Type: Application
    Filed: October 22, 2010
    Publication date: October 25, 2012
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Mayuko Osaki, Hirohito Hirata, Naoto Nagata, Yuji Matsumoto, Kei Kuramoto