Patents by Inventor Masami Nishiumi

Masami Nishiumi 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).

  • Patent number: 10991478
    Abstract: An object of the present invention is to provide an insulated wire which includes an insulating layer with a low relative permittivity and has excellent heat resistance and excellent abrasion resistance. The insulated wire of the present invention includes a conductor (A), and an insulating layer (B) formed on the periphery of the conductor (A), the insulating layer (B) is formed from a resin composition that contains a resin (I) with a relative permittivity of 3.0 to 4.0 and a fluororesin (II).
    Type: Grant
    Filed: January 7, 2014
    Date of Patent: April 27, 2021
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Haruhisa Masuda, Yuki Ueda, Masami Nishiumi
  • Patent number: 10964444
    Abstract: The present invention aims to provide a resin composition which can provide a molded article excellent in insulation and showing a low relative permittivity and which causes no melt fracture even when extrusion-molded at a high shear rate. The resin composition of the present invention includes an aromatic polyether ketone resin (I) and a fluororesin (II). The fluororesin (II) is a copolymer of tetrafluoroethylene and a perfluoro ethylenically unsaturated compound represented by the following formula (1): CF2?CF—Rf1??(1) wherein Rf1 represents —CF3 or —ORf2; and Rf2 represents a C1-C5 perfluoroalkyl group. The aromatic polyether ketone resin (I) and the fluororesin (II) satisfy a melt viscosity ratio (I)/(II) of not lower than 0.001 but lower than 0.3.
    Type: Grant
    Filed: July 24, 2014
    Date of Patent: March 30, 2021
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Yuki Ueda, Masami Nishiumi, Haruhisa Masuda
  • Patent number: 10294362
    Abstract: The present invention aims to provide a resin composition capable of providing a molded article which is excellent in flexibility, acid resistance, and electrical properties. The resin composition of the present invention includes: an aromatic polyether ketone resin (I); and a fluororesin (II), the fluororesin (II) being a copolymer of tetrafluoroethylene and a perfluoroethylenic unsaturated compound represented by the following formula (1): CF2?CF—Rf1 (1) wherein Rf1 represents —CF3 or —ORf2, and Rf2 represents a C1-C5 perfluoroalkyl group, the fluororesin (II) being dispersed as particles in the aromatic polyether ketone resin (I), the resin composition satisfying a ratio (I):(II) by mass between the aromatic polyether ketone resin (I) and the fluororesin (II) of 50:50 to 10:90.
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: May 21, 2019
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Yuki Ueda, Masami Nishiumi, Haruhisa Masuda
  • Patent number: 9896401
    Abstract: Provided is a method for easily and safely removing, from a reactor, a catalyst used in a reaction that is performed using hydrogen fluoride in the presence of the catalyst. In a reaction performed in a reactor containing at least hydrogen fluoride and a catalyst, the catalyst is removed through a process comprising a heating step of performing heat-treatment so that the ambient temperature of the reactor is 80° C. or more after completion of the reaction, and a purge step of flowing inert gas into the reactor to discharge the hydrogen fluoride to the outside of the reactor after completion of the reaction.
    Type: Grant
    Filed: December 2, 2015
    Date of Patent: February 20, 2018
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Masami Nishiumi, Daisuke Karube
  • Publication number: 20170349511
    Abstract: Provided is a method for easily and safely removing, from a reactor, a catalyst used in a reaction that is performed using hydrogen fluoride in the presence of the catalyst. In a reaction performed in a reactor containing at least hydrogen fluoride and a catalyst, the catalyst is removed through a process comprising a heating step of performing heat-treatment so that the ambient temperature of the reactor is 80° C. or more after completion of the reaction, and a purge step of flowing inert gas into the reactor to discharge the hydrogen fluoride to the outside of the reactor after completion of the reaction.
    Type: Application
    Filed: December 2, 2015
    Publication date: December 7, 2017
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Masami NISHIUMI, Daisuke KARUBE
  • Patent number: 9708234
    Abstract: The present invention provides a process for producing a fluoroolefin by reacting, in a gas phase, a fluorinating agent and a chlorine-containing alkene or a chlorine-containing alkane in the presence of at least one catalyst selected from the group consisting of chromium oxide, at least part of which is crystallized, and fluorinated chromium oxide obtained by fluorinating the chromium oxide. According to the present process, a target fluoroolefin can be obtained at a high conversion rate of the starting material and with high selectivity.
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: July 18, 2017
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Takehiro Chaki, Daisuke Karube, Masami Nishiumi
  • Patent number: 9452958
    Abstract: This invention provides a process for producing a fluoroolefin comprising reacting, in a vapor phase, a fluorinating agent and a chlorine-containing alkene or a chlorine-containing alkane in the presence of at least one catalyst selected from the group consisting of chromium oxide containing a Group 5 element and fluorinated chromium oxide containing a Group 5 element. According to the process of the present invention, the target fluoroolefin can be obtained with high starting material conversion and good selectivity.
    Type: Grant
    Filed: January 24, 2013
    Date of Patent: September 27, 2016
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Daisuke Karube, Takehiro Chaki, Masami Nishiumi, Takashi Shibanuma, Masashi Arai
  • Publication number: 20160163413
    Abstract: The present invention aims to provide a resin composition which can provide a molded article excellent in insulation and showing a low relative permittivity and which causes no melt fracture even when extrusion-molded at a high shear rate. The resin composition of the present invention includes an aromatic polyether ketone resin (I) and a fluororesin (II). The fluororesin (II) is a copolymer of tetrafluoroethylene and a perfluoro ethylenically unsaturated compound represented by the following formula (1): CF2?CF-Rf1 ??(1) wherein Rf1 represents —CF3 or —ORf2; and Rf2 represents a C1-C5 perfluoroalkyl group. The aromatic polyether ketone resin (I) and the fluororesin (II) satisfy a melt viscosity ratio (I)/(II) of not lower than 0.001 but lower than 0.3.
    Type: Application
    Filed: July 24, 2014
    Publication date: June 9, 2016
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Yuki UEDA, Masami NISHIUMI, Haruhisa MASUDA
  • Publication number: 20150357084
    Abstract: An object of the present invention is to provide an insulated wire which includes an insulating layer with a low relative permittivity and has excellent heat resistance and excellent abrasion resistance. The insulated wire of the present invention includes a conductor (A), and an insulating layer (B) formed on the periphery of the conductor (A), the insulating layer (B) is formed from a resin composition that contains a resin (I) with a relative permittivity of 3.0 to 4.0 and a fluororesin (II).
    Type: Application
    Filed: January 7, 2014
    Publication date: December 10, 2015
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Haruhisa MASUDA, Yuki UEDA, Masami NISHIUMI
  • Publication number: 20150203679
    Abstract: The present invention aims to provide a resin composition capable of providing a molded article which is excellent in flexibility, acid resistance, and electrical properties. The resin composition of the present invention includes: an aromatic polyether ketone resin (I); and a fluororesin (II), the fluororesin (II) being a copolymer of tetrafluoroethylene and a perfluoroethylenic unsaturated compound represented by the following formula (1): CF2?CF—Rf1 (1) wherein Rf1 represents —CF3 or —ORf2, and Rf2 represents a C1-C5 perfluoroalkyl group, the fluororesin (II) being dispersed as particles in the aromatic polyether ketone resin (I), the resin composition satisfying a ratio (I):(II) by mass between the aromatic polyether ketone resin (I) and the fluororesin (II) of 50:50 to 10:90.
    Type: Application
    Filed: July 23, 2013
    Publication date: July 23, 2015
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Yuki Ueda, Masami Nishiumi, Haruhisa Masuda
  • Publication number: 20150148571
    Abstract: The present invention provides a process for producing a fluoroolefin by reacting, in a gas phase, a fluorinating agent and a chlorine-containing alkene or a chlorine-containing alkane in the presence of at least one catalyst selected from the group consisting of chromium oxide, at least part of which is crystallized, and fluorinated chromium oxide obtained by fluorinating the chromium oxide. According to the present process, a target fluoroolefin can be obtained at a high conversion rate of the starting material and with high selectivity.
    Type: Application
    Filed: July 10, 2013
    Publication date: May 28, 2015
    Inventors: Takehiro Chaki, Daisuke Karube, Masami Nishiumi
  • Publication number: 20140303412
    Abstract: This invention provides a process for producing a fluoroolefin comprising reacting, in a vapor phase, a fluorinating agent and a chlorine-containing alkene or a chlorine-containing alkane in the presence of at least one catalyst selected from the group consisting of chromium oxide containing a Group 5 element and fluorinated chromium oxide containing a Group 5 element. According to the process of the present invention, the target fluoroolefin can be obtained with high starting material conversion and good selectivity.
    Type: Application
    Filed: January 24, 2013
    Publication date: October 9, 2014
    Inventors: Daisuke Karube, Takehiro Chaki, Masami Nishiumi, Takashi Shibanuma, Masashi Arai