Patents by Inventor Tatsuya Morikawa
Tatsuya Morikawa 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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Publication number: 20240132633Abstract: A method for producing an aqueous dispersion of a fluorine-containing elastomer, which includes polymerizing a fluorine-containing monomer in the presence of an aqueous medium and a fluorine-containing compound (A), wherein the fluorine-containing elastomer contains a methylene group in a main chain, the fluorine-containing compound (A) is a compound represented by general formula (A): CXiXk?CXjRa—(CZ1Z2)k—Y3??(A) wherein Xi, Xj, and Xk are the same or different and are F, Cl, H, or CF3; Y3 is a hydrophilic group; Ra is a linking group; Z1 and Z2 are the same or different and are H, F, or CF3; and k is 0 or 1; provided that at least one of Xi, Xk, Xj, Ra, Z1, and Z2 includes F; and the number of carbon atoms in a portion excluding the hydrophilic group is 6 or less, and the fluorine-containing compound (A) is fed after polymerization is initiated.Type: ApplicationFiled: December 8, 2023Publication date: April 25, 2024Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Sota YUASA, Tatsuya Morikawa, Rina Tamai, Kouhei Takemura, Masaki Irie
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Publication number: 20230322975Abstract: Provided is a method for producing an aqueous dispersion of a fluorine-containing elastomer, comprising polymerizing a fluorine-containing monomer in the presence of a polymer (1) containing a polymerization unit (1) based on a monomer (1) represented by general formula (1) and an aqueous medium, CF2?CF—R—CZ1Z2—COOM??(1) wherein R is a linking group, Z1 and Z2 are each independently F or CF3, and M is H, a metal atom, NR74, imidazolium optionally having a substituent, pyridinium optionally having a substituent, or phosphonium optionally having a substituent, wherein R7 is H or an organic group.Type: ApplicationFiled: May 19, 2023Publication date: October 12, 2023Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Sota YUASA, Tatsuya Morikawa, Rina Tamai, Kouhei Takemura, Masaki Irie
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Publication number: 20230192924Abstract: A method for producing an aqueous dispersion of a fluorine-containing elastomer, including polymerizing a fluorine-containing monomer in the presence of a compound (1) having an aromatic ring, a hydrophilic group, and an unsaturated double bond, and an aqueous medium, to produce an aqueous dispersion of a fluorine-containing elastomer containing -CH2- in a main chain.Type: ApplicationFiled: January 19, 2023Publication date: June 22, 2023Applicant: Daikin Industries, Ltd.Inventors: Rina Tamai, Tatsuya Morikawa, Sota Yuasa, Kouhei Takemura, Masaki Irie
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Publication number: 20230167219Abstract: Provided is a method for producing an aqueous dispersion of a fluorine-containing elastomer, comprising polymerizing a fluorine-containing monomer in the presence of a compound (1) having a triple bond and a hydrophilic group and an aqueous medium to produce an aqueous dispersion of a fluorine-containing elastomer.Type: ApplicationFiled: January 26, 2023Publication date: June 1, 2023Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Rina TAMAI, Tatsuya MORIKAWA, Sota YUASA, Kouhei TAKEMURA, Masaki IRIE
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Publication number: 20230167213Abstract: Provided is a method for producing an aqueous dispersion of a fluorine-containing elastomer, comprising polymerizing a fluorine-containing monomer in the presence of a fluorine-containing compound (1) represented by general formula (1) and an aqueous medium to produce an aqueous dispersion of a fluorine-containing elastomer: CX1X2?CX3—Z??General formula (1): wherein X1 to X3 are each independently H, F, or a fluorine-containing alkyl group; when X1 and X2 are both H, X3 is F or a fluorine-containing alkyl group; Z is a group represented by —COOM, —SO3M, —OSO3M, —PO(OM)2, —OPO(OM)2, —BO(OM)2, or —OBO(OM)2; M is H, a metal atom, NR14, optionally substituted imidazolium, optionally substituted pyridinium, or optionally substituted phosphonium; and R1 is independently H or an organic group, and any two R1 are optionally bonded to each other to form a ring.Type: ApplicationFiled: January 27, 2023Publication date: June 1, 2023Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Rina TAMAI, Tatsuya MORIKAWA, Sota YUASA, Kouhei TAKEMURA, Masaki IRIE
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Publication number: 20230167212Abstract: A method for producing an aqueous dispersion of a fluorine-containing elastomer, which includes polymerizing a fluorine-containing monomer in the presence of a fluorine-free compound (1) represented by general formula (1): CR1X1?CX2—R2—COOM and an aqueous medium, to produce an aqueous dispersion of the fluorine-containing elastomer containing —CH2— in a main chain. Also disclosed is an aqueous dispersion of the fluorine-containing elastomer and a composition containing the fluorine-containing elastomer.Type: ApplicationFiled: January 26, 2023Publication date: June 1, 2023Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Rina TAMAI, Tatsuya MORIKAWA, Sota YUASA, Kouhei TAKEMURA, Masaki IRIE
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Publication number: 20220340694Abstract: Provided is a method for producing a fluorine-containing polymer, comprising polymerizing a fluorine-containing monomer in the presence of a fluorine-free compound (1) represented by general formula (1), a polymerization initiator, and an aqueous medium to produce the fluorine-containing polymer: CX1X2?CX3—R—Z??General formula (1): wherein X1, X2, and X3 are each independently H or an alkyl group; R is a single bond or an alkylene group; the total number of carbon atoms of X1, X2, X3, and R is 0 to 5; Z is —SO3M, —OSO3M, —P(?O)(OM)2, —OP(O)(OM)2, or —B(OM)2; M is H, a metal atom, NR14, optionally substituted imidazolium, optionally substituted pyridinium, or optionally substituted phosphonium; and R1 is independently H or an organic group, and any two R1 may be bonded to each other to form a ring.Type: ApplicationFiled: June 24, 2022Publication date: October 27, 2022Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Rina TAMAI, Tatsuya MORIKAWA, Souta YUASA, Soushi TSUCHIYA, Kouhei TAKEMURA, Kazuyoshi KAWASAKI, Masaki IRIE
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Publication number: 20220267483Abstract: A method for producing a fluorine-containing elastomer, which includes carrying out an emulsion polymerization of a fluorine-containing monomer in an aqueous medium in the presence of (A) a fluorine-containing compound containing a functional group capable of reaction by radical polymerization and a hydrophilic group and (B) a hydrocarbon surfactant to provide a fluorine-containing elastomer.Type: ApplicationFiled: July 16, 2020Publication date: August 25, 2022Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Rina TAMAI, Tatsuya MORIKAWA, Kazuyoshi KAWASAKI, Masaki IRIE
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Patent number: 11053180Abstract: The method according to this disclosure is a method for separating an unsaturated hydrocarbon having 2 or 3 carbon atoms and a halogenated unsaturated carbon compound formed by replacing at least one of hydrogen atoms included in the unsaturated hydrocarbon with a fluorine atom, from each other and is a method for selectively adsorbing either the unsaturated hydrocarbon or the halogenated unsaturated carbon compound by a porous coordination polymer that includes a metallic ion having a valence of 2 to 4 and an aromatic anion having 1 to 6 aromatic ring(s).Type: GrantFiled: April 10, 2020Date of Patent: July 6, 2021Assignees: DAIKIN INDUSTRIES, LTD., KYOTO UNIVERSITYInventors: Tatsuya Morikawa, Mana Shimokawa, Katsuki Fujiwara, Satoshi Tokuno, Masakazu Higuchi, Susumu Kitagawa
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Patent number: 11054066Abstract: The present invention provides a hose excellent in mechanical properties at high temperatures. The hose of the present invention comprises a cross-linked fluororubber layer obtainable by cross-linking a fluororubber composition containing a fluororubber (A) and a carbon black (B). The cross-linked fluororubber layer has a loss modulus E? of 400 kPa or higher and 6,000 kPa or lower determined by a dynamic viscoelasticity test (measurement temperature: 160° C., tensile strain: 1%, initial force: 157 cN, frequency: 10 Hz).Type: GrantFiled: August 25, 2011Date of Patent: July 6, 2021Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Junpei Terada, Daisuke Ota, Masanori Kitaichi, Yutaka Ueta, Shigeru Morita, Kazuyoshi Kawasaki, Tatsuya Morikawa, Satoshi Kawai, Shoji Fukuoka
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Patent number: 11022376Abstract: A heat exchanger includes a first flow path through which a first fluid flows, a second flow path through which a second fluid flows, and an adjustment layer disposed between the first flow path and the second flow path adjacent to each other and that adjusts an amount of heat exchange between the first flow path and the second flow path. The adjustment layer includes a first portion and a second portion having a heat transfer performance lower than that of the first portion, and has a heat transfer performance varied depending on a position in the adjustment layer.Type: GrantFiled: October 7, 2016Date of Patent: June 1, 2021Assignee: Sumitomo Precision Products Co., Ltd.Inventors: Suguru Takahashi, Yasuhiro Fujita, Tatsuya Morikawa
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Publication number: 20200239389Abstract: The method according to this disclosure is a method for separating an unsaturated hydrocarbon having 2 or 3 carbon atoms and a halogenated unsaturated carbon compound formed by replacing at least one of hydrogen atoms included in the unsaturated hydrocarbon with a fluorine atom, from each other and is a method for selectively adsorbing either the unsaturated hydrocarbon or the halogenated unsaturated carbon compound by a porous coordination polymer that includes a metallic ion having a valence of 2 to 4 and an aromatic anion having 1 to 6 aromatic ring(s).Type: ApplicationFiled: April 10, 2020Publication date: July 30, 2020Applicants: DAIKIN INDUSTRIES, LTD., KYOTO UNIVERSITYInventors: Tatsuya Morikawa, Mana Shimokawa, Katsuki Fujiwara, Satoshi Tokuno, Masakazu Higuchi, Susumu Kitagawa
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Patent number: 10654775Abstract: The method according to this disclosure is a method for separating an unsaturated hydrocarbon having 2 or 3 carbon atoms and a halogenated unsaturated carbon compound formed by replacing at least one of hydrogen atoms included in the unsaturated hydrocarbon with a fluorine atom, from each other and is a method for selectively adsorbing either the unsaturated hydrocarbon or the halogenated unsaturated carbon compound by a porous coordination polymer that includes a metallic ion having a valence of 2 to 4 and an aromatic anion having 1 to 6 aromatic ring(s).Type: GrantFiled: June 15, 2016Date of Patent: May 19, 2020Assignees: DAIKIN INDUSTRIES, LTD., KYOTO UNIVERSITYInventors: Tatsuya Morikawa, Mana Shimokawa, Katsuki Fujiwara, Satoshi Tokuno, Masakazu Higuchi, Susumu Kitagawa
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Publication number: 20200049411Abstract: A heat exchanger includes a first flow path through which a first fluid flows, a second flow path through which a second fluid flows, and an adjustment layer disposed between the first flow path and the second flow path adjacent to each other and that adjusts an amount of heat exchange between the first flow path and the second flow path. The adjustment layer includes a first portion and a second portion having a heat transfer performance lower than that of the first portion, and has a heat transfer performance varied depending on a position in the adjustment layer.Type: ApplicationFiled: October 7, 2016Publication date: February 13, 2020Inventors: Suguru TAKAHASHI, Yasuhiro FUJITA, Tatsuya MORIKAWA
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Patent number: 10553519Abstract: A heat radiating member includes: a composite portion composed of a composite material which contains particles of a satisfactorily thermally conductive material in a metal matrix; and a metal layer formed on at least one surface of the composite portion and composed of a metal. A method for producing a heat radiating member includes: a preparation step to prepare a composite material which contains particles of a satisfactorily thermally conductive material in a metal matrix; a powder arrangement step to dispose a metal powder composed of metal particles on at least one surface of the composite material; and a heating step to heat the composite material and the metal powder, with the metal powder disposed on the composite material, to form a metal layer composed of a metal of the metal powder on a composite portion composed of the composite material.Type: GrantFiled: September 1, 2015Date of Patent: February 4, 2020Assignees: A.L.M.T. Corp, Sumitomo Electric Industries, Ltd.Inventors: Tatsuya Morikawa, Takanori Kadokura, Isao Iwayama
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Publication number: 20190086155Abstract: A diffusion-bonded heat exchanger (100) includes a core (1) in which a first heat transfer plate (10) and a second heat transfer plate (20) are stacked and diffusion-bonded to each other, a plurality of pairs of first ports (2), and second ports (3). The first heat transfer plate (10) includes a plurality of first fluid passages (11).Type: ApplicationFiled: March 23, 2017Publication date: March 21, 2019Inventors: Yasuhiro FUJITA, Tatsuya MORIKAWA, Suguru TAKAHASHI
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Patent number: 10227430Abstract: An aqueous perfluoroelastomer dispersion and method for producing a perfluoroelastomer using a specific fluorosurfactant and capable of achieving a sufficient number of particles and a sufficient polymerization rate. The method includes providing an aqueous dispersion containing perfluoroelastomer particles by emulsion-polymerizing a perfluoromonomer in an aqueous medium in the presence of a specific fluorosurfactant in an amount of 2 parts by mass or more for 100 parts by mass of the aqueous medium.Type: GrantFiled: February 16, 2015Date of Patent: March 12, 2019Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Tatsuya Morikawa, Junpei Terada, Shoji Fukuoka
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Publication number: 20180222823Abstract: The method according to this disclosure is a method for separating an unsaturated hydrocarbon having 2 or 3 carbon atoms and a halogenated unsaturated carbon compound formed by replacing at least one of hydrogen atoms included in the unsaturated hydrocarbon with a fluorine atom, from each other and is a method for selectively adsorbing either the unsaturated hydrocarbon or the halogenated unsaturated carbon compound by a porous coordination polymer that includes a metallic ion having a valence of 2 to 4 and an aromatic anion having 1 to 6 aromatic ring(s).Type: ApplicationFiled: June 15, 2016Publication date: August 9, 2018Applicants: DAIKIN INDUSTRIES, LTD., KYOTO UNIVERSITYInventors: Tatsuya MORIKAWA, Mana SHIMOKAWA, Katsuki FUJIWARA, Satoshi TOKUNO, Masakazu HIGUCHI, Susumu KITAGAWA
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Publication number: 20170287810Abstract: A heat radiating member includes: a composite portion composed of a composite material which contains particles of a satisfactorily thermally conductive material in a metal matrix; and a metal layer formed on at least one surface of the composite portion and composed of a metal. A method for producing a heat radiating member includes: a preparation step to prepare a composite material which contains particles of a satisfactorily thermally conductive material in a metal matrix; a powder arrangement step to dispose a metal powder composed of metal particles on at least one surface of the composite material; and a heating step to heat the composite material and the metal powder, with the metal powder disposed on the composite material, to form a metal layer composed of a metal of the metal powder on a composite portion composed of the composite material.Type: ApplicationFiled: September 1, 2015Publication date: October 5, 2017Inventors: Tatsuya Morikawa, Takanori Kadokura, Isao Iwayama
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Publication number: 20170145280Abstract: Provided are a diamond composite material which is excellent in thermal conductivity, suitable as a material for a heat radiating member, and dense, the heat radiating member, and a method for producing a diamond composite material that can productively produce a diamond composite material which is excellent in wettability between diamond and metal and dense. The diamond composite material includes: a coated diamond particle including a diamond particle and a carbide layer covering a surface of the diamond particle and including an element of group 4 of the periodic table; and silver or a silver alloy binding such coated diamond particles together, with an oxygen content of 0.1 mass % or less.Type: ApplicationFiled: September 1, 2015Publication date: May 25, 2017Applicants: A.L.M.T. Corp., A.L.M.T. Corp.Inventors: Tatsuya Morikawa, Takanori Kadokura, Kensuke Osawa