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).
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Patent number: 10991478Abstract: 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: GrantFiled: January 7, 2014Date of Patent: April 27, 2021Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Haruhisa Masuda, Yuki Ueda, Masami Nishiumi
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Patent number: 10964444Abstract: 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: GrantFiled: July 24, 2014Date of Patent: March 30, 2021Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Yuki Ueda, Masami Nishiumi, Haruhisa Masuda
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Patent number: 10294362Abstract: 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: GrantFiled: July 23, 2013Date of Patent: May 21, 2019Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Yuki Ueda, Masami Nishiumi, Haruhisa Masuda
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Patent number: 9896401Abstract: 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: GrantFiled: December 2, 2015Date of Patent: February 20, 2018Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Masami Nishiumi, Daisuke Karube
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Publication number: 20170349511Abstract: 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: ApplicationFiled: December 2, 2015Publication date: December 7, 2017Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Masami NISHIUMI, Daisuke KARUBE
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Patent number: 9708234Abstract: 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: GrantFiled: July 10, 2013Date of Patent: July 18, 2017Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Takehiro Chaki, Daisuke Karube, Masami Nishiumi
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Patent number: 9452958Abstract: 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: GrantFiled: January 24, 2013Date of Patent: September 27, 2016Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Daisuke Karube, Takehiro Chaki, Masami Nishiumi, Takashi Shibanuma, Masashi Arai
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Publication number: 20160163413Abstract: 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: ApplicationFiled: July 24, 2014Publication date: June 9, 2016Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Yuki UEDA, Masami NISHIUMI, Haruhisa MASUDA
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Publication number: 20150357084Abstract: 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: ApplicationFiled: January 7, 2014Publication date: December 10, 2015Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Haruhisa MASUDA, Yuki UEDA, Masami NISHIUMI
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Publication number: 20150203679Abstract: 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: ApplicationFiled: July 23, 2013Publication date: July 23, 2015Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Yuki Ueda, Masami Nishiumi, Haruhisa Masuda
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Publication number: 20150148571Abstract: 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: ApplicationFiled: July 10, 2013Publication date: May 28, 2015Inventors: Takehiro Chaki, Daisuke Karube, Masami Nishiumi
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Publication number: 20140303412Abstract: 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: ApplicationFiled: January 24, 2013Publication date: October 9, 2014Inventors: Daisuke Karube, Takehiro Chaki, Masami Nishiumi, Takashi Shibanuma, Masashi Arai