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: 20160347895Abstract: 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: ApplicationFiled: February 16, 2015Publication date: December 1, 2016Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Tatsuya MORIKAWA, Junpei TERADA, Shoji FUKUOKA
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Patent number: 9127114Abstract: There is provided a curable fluorine-containing polymer composition which is quickly cured at relatively low temperatures by hydrosilylation reaction and provides a coating film which has high hardness, excellent solvent resistance and flexibility. The curable fluorine-containing polymer composition comprises a fluorine-containing polymer comprising a fluorinated ethylenic monomer unit and a non-fluorinated ethylenic monomer unit, in which a part or the whole of the non-fluorinated ethylenic monomer units is a unit represented by the formula: wherein R1 is hydrogen or methyl; R2 is a hydrocarbon group having ethylenic C?C; X is —C(O)NH— or —C(O)—; R3 is —O—, —O[CH(R4)]mO—, —(CH2)mO—, —OC(O)—(CH2)mO— or —(CH2)mOC(O)—(CH2)nO—, where R4 is —H, —OH, —CH2OH or —O—X—R2, a siloxane compound having hydrogen atom bonded to silicon atom, and a catalyst for hydrosilylation reaction.Type: GrantFiled: October 12, 2007Date of Patent: September 8, 2015Assignees: DAIKIN INDUSTRIES, LTD., DOW CORNING CORPORATIONInventors: Katsuhiko Imoto, Tetsuo Shimizu, Tatsuya Morikawa, Masayuki Hayashi, Tomohiro Iimura, Peter Cheshire Hupfield
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Patent number: 9068069Abstract: The present invention includes crosslinked perfluoroelastomeric compositions and molded articles formed from a cross-linkable perfluoroelastomeric composition having a first curable perfluoropolymer having a cure site monomer and a second perfluoropolymer having a cure site monomer. The molar ratio of the tetrafluoroethylene monomer to perfluoroalkylvinyl ether in one perfluoropolymer is about 0 to 100 to about 65 to 35 in the perfluoropolymer. The molar ratio of the tetrafluoroethylene monomer to the perfluoroalkylvinyl ether monomer in the second polymer is about 65:35 to about 95:5 in the second perfluoropolymer. The composition further includes a curative.Type: GrantFiled: December 15, 2010Date of Patent: June 30, 2015Assignees: Greene, Tweed Technologies, Inc., Daikin Industries, Ltd.Inventors: Tsuyoshi Noguchi, Jiazhong Luo, Tatsuya Morikawa, Hirokazu Komori, Takafumi Yamato, Meiten Koh
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Patent number: 9068653Abstract: To provide a sealing material which is excellent in sealability under high-temperature conditions as well as crack resistance at high temperatures and high compression. A sealing material comprising 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 having a loss modulus E? of 600 kPa or higher and 6,000 kPa or lower determined by a dynamic viscoelasticity test under conditions of measurement temperature: 160° C., tensile strain: 1%, initial force: 157 cN, and frequency: 10 Hz.Type: GrantFiled: August 25, 2011Date of Patent: June 30, 2015Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Junpei Terada, Daisuke Ota, Masanori Kitaichi, Yutaka Ueta, Shigeru Morita, Kazuyoshi Kawasaki, Tatsuya Morikawa, Shoji Fukuoka
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Patent number: 8889796Abstract: There is provided a perfluoroelastomer composition having a low glass transition temperature and excellent cold resistance and heat resistance and comprising a perfluoroelastomer comprising a tetrafluoroethylene unit (a), a perfluoro vinyl ether unit (b) and a cure site unit (c) having nitrile group, carboxyl group and/or alkoxycarbonyl group as a cure site, wherein the perfluoro vinyl ether unit (b) is contained in an amount of 8 to 23% by mole in the perfluoroelastomer.Type: GrantFiled: October 2, 2009Date of Patent: November 18, 2014Assignee: Daikin Industries, Ltd.Inventors: Junpei Terada, Tatsuya Morikawa, Daisuke Ota, Meiten Koh
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Patent number: 8754161Abstract: The present invention provides a complex-shaped fluororubber formed product having excellent demoldability in molding. The complex-shaped fluororubber formed product 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: June 17, 2014Assignee: Daikin Industries, Ltd.Inventors: Junpei Terada, Daisuke Ota, Masanori Kitaichi, Yutaka Ueta, Shigeru Morita, Kazuyoshi Kawasaki, Tatsuya Morikawa, Shoji Fukuoka
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Publication number: 20140059182Abstract: A sync content broadcast distribution system of the present invention is a sync content broadcast distribution system (10) for synchronizing a sync content to an IP streamed broadcast data, which comprises: a time code generator (40) for producing a time code matched to an absolute time and embedding the time code in a broadcast data outputted from a broadcast station master (20); an encoder (50) for encoding the broadcast data in which the time code is embedded and converting the encoded broadcast data to an IP stream; a streaming server (60) for distributing the IP stream; a decoder (80) for decoding the IP stream distributed from the streaming server (60) and reading the time code embedded in the IP stream; a web server (100) for reading sync content from a storage device (90) storing at least one, two, or more sync contents and distributing the sync content; and a reproducing device (70) for receiving the IP stream distributed from the streaming server (60) and the sync content distributed from the web seType: ApplicationFiled: March 2, 2012Publication date: February 27, 2014Inventors: Fumio Miura, Takashi Fuji, Keishi Kandori, Tatsuya Morikawa
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Patent number: 8609774Abstract: The present invention provides a belt excellent in mechanical properties at high temperatures. The belt 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: December 17, 2013Assignee: Daikin Industries, Ltd.Inventors: Junpei Terada, Daisuke Ota, Masanori Kitaichi, Yutaka Ueta, Shigeru Morita, Kazuyoshi Kawasaki, Tatsuya Morikawa, Shoji Fukuoka
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Patent number: 8367776Abstract: The present invention includes crosslinked perfluoroelastomeric compositions and molded articles formed from a cross-linkable perfluoroelastomeric composition having a first curable perfluoropolymer having a cure site monomer and a second perfluoropolymer having a cure site monomer. The molar ratio of the tetrafluoroethylene monomer to perfluoroalkylvinyl ether in one perfluoropolymer is about 0 to 100 to about 65 to 35 in the perfluoropolymer. The molar ratio of the tetrafluoroethylene monomer to the perfluoroalkylvinyl ether monomer in the second polymer is about 65:35 to about 95:5 in the second perfluoropolymer. The composition further includes a curative.Type: GrantFiled: April 16, 2008Date of Patent: February 5, 2013Assignees: Greene, Tweed of Delaware, Inc., Daikin Industries, Ltd.Inventors: Tsuyoshi Noguchi, Jiazhong Luo, Tatsuya Morikawa, Hirokazu Komori, Takafumi Yamato, Meiten Koh
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Patent number: 8242208Abstract: The invention provides a fluoropolymer composition capable of improving the characteristics of the cured material obtained therefrom. A fluoropolymer composition comprising a methylene group-containing fluoropolymer (A) and a hydrosilylation catalyst (B), wherein the methylene group-containing fluoropolymer (A) has methylene group-containing repeating units in the main chain thereof and is capable of hydrosilylation in the presence of the hydrosilylation catalyst (B) and one terminus of the chain is a carbon-carbon double bond or an Si—H group and the other terminus of the chain is an Si—H group or a carbon-carbon double bond.Type: GrantFiled: March 6, 2009Date of Patent: August 14, 2012Assignee: Daikin Industries, Ltd.Inventors: Tatsuya Morikawa, Manabu Fujisawa, Mitsuru Kishine
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Patent number: 8198386Abstract: A fluorine-containing elastomer composition assuring a low compression set and comprising a perfluoroelastomer (A) comprising (a) 18 to 33% by mole of a perfluoro(alkyl vinyl ether) unit, (b) 0.3 to 0.6% by mole of a monomer unit having at least one selected from the group consisting of a nitrile group, a carboxyl group and an alkoxycarbonyl group and (c) a tetrafluoroethylene unit.Type: GrantFiled: April 9, 2008Date of Patent: June 12, 2012Assignee: Daikin Industries, Ltd.Inventors: Tatsuya Morikawa, Hirokazu Komori, Meiten Koh
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Publication number: 20120095151Abstract: The present invention provides a complex-shaped fluororubber formed product having excellent demoldability in molding. The complex-shaped fluororubber formed product 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: ApplicationFiled: August 25, 2011Publication date: April 19, 2012Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Junpei TERADA, Daisuke OTA, Masanori KITAICHI, Yutaka UETA, Shigeru MORITA, Kazuyoshi KAWASAKI, Tatsuya MORIKAWA, Shoji FUKUOKA
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Publication number: 20120077938Abstract: The present invention provides a vibration isolation rubber excellent not only in heat-aging resistance and oil resistance but also in mechanical properties at high temperatures. The vibration isolation rubber 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, and frequency: 10 Hz).Type: ApplicationFiled: August 25, 2011Publication date: March 29, 2012Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Junpei TERADA, Daisuke Ota, Masanori Kitaichi, Yutaka Ueta, Shigeru Morita, Kazuyoshi Kawasaki, Tatsuya Morikawa, Shoji Fukuoka
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Publication number: 20120077925Abstract: To provide a sealing material which is excellent in sealability under high-temperature conditions as well as crack resistance at high temperatures and high compression. A sealing material comprising 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 having a loss modulus E? of 600 kPa or higher and 6,000 kPa or lower determined by a dynamic viscoelasticity test under conditions of measurement temperature: 160° C., tensile strain: 1%, initial force: 157 cN, and frequency: 10 Hz.Type: ApplicationFiled: August 25, 2011Publication date: March 29, 2012Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Junpei TERADA, Daisuke OTA, Masanori KITAICHI, Yutaka UETA, Shigeru MORITA, Kazuyoshi KAWASAKI, Tatsuya MORIKAWA, Shoji FUKUOKA
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Publication number: 20120077924Abstract: To provide a fluororubber formed product having excellent heat resistance and excellent mechanical properties at high temperatures. A formed product comprising: a cross-linked fluororubber product obtained by cross-link-molding a fluororubber composition containing a fluororubber (A) and a carbon black (B), the cross-linked fluororubber product having a loss modulus E? of 400 kPa or higher and 6,000 kPa or lower determined by a dynamic viscoelasticity test under conditions of a measurement temperature of 160° C., tensile strain of 1%, initial force of 157 cN, and frequency of 10 Hz.Type: ApplicationFiled: August 25, 2011Publication date: March 29, 2012Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Daisuke OTA, Junpei TERADA, Masanori KITAICHI, Yutaka UETA, Shigeru MORITA, Kazuyoshi KAWASAKI, Tatsuya MORIKAWA, Shoji FUKUOKA
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Publication number: 20120077939Abstract: The present invention provides a fluororubber formed product having excellent heat resistance and excellent mechanical properties at high temperatures. The formed product comprises a cross-linked fluororubber product obtainable by cross-linking a fluororubber composition containing a fluororubber (A) and a carbon black (B), the fluororubber (A) being a vinylidene fluoride fluororubber including 48 to 88 mol % of a structural unit derived from vinylidene fluoride and 0 to 10 mol % of a structural unit derived from tetrafluoroethylene relative to the total amount 100 mol % of structural units derived from all monomer components, the cross-linked fluororubber product having 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, and frequency: 10 Hz).Type: ApplicationFiled: August 25, 2011Publication date: March 29, 2012Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Daisuke OTA, Junpei TERADA, Masanori KITAICHI, Yutaka UETA, Shigeru MORITA, Kazuyoshi KAWASAKI, Tatsuya MORIKAWA, Shoji FUKUOKA
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Publication number: 20120073696Abstract: 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: ApplicationFiled: August 25, 2011Publication date: March 29, 2012Applicant: 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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Publication number: 20120067706Abstract: The present invention provides a belt excellent in mechanical properties at high temperatures. The belt 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: ApplicationFiled: August 25, 2011Publication date: March 22, 2012Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Junpei TERADA, Daisuke OTA, Masanori KITAICHI, Yutaka UETA, Shigeru MORITA, Kazuyoshi KAWASAKI, Tatsuya MORIKAWA, Shoji FUKUOKA
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Publication number: 20110207890Abstract: There is provided a perfluoroelastomer composition having a low glass transition temperature and excellent cold resistance and heat resistance and comprising a perfluoroelastomer comprising a tetrafluoroethylene unit (a), a perfluoro vinyl ether unit (b) and a cure site unit (c) having nitrile group, carboxyl group and/or alkoxycarbonyl group as a cure site, wherein the perfluoro vinyl ether unit (b) is contained in an amount of 8 to 23% by mole in the perfluoroelastomer.Type: ApplicationFiled: October 2, 2009Publication date: August 25, 2011Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Junpei Terata, Tatsuya Morikawa, Daisuke Ota, Meiten Koh
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Publication number: 20110086229Abstract: The present invention includes crosslinked perfluoroelastomeric compositions and molded articles formed from a cross-linkable perfluoroelastomeric composition having a first curable perfluoropolymer having a cure site monomer and a second perfluoropolymer having a cure site monomer. The molar ratio of the tetrafluoroethylene monomer to perfluoroalkylvinyl ether in one perfluoropolymer is about 0 to 100 to about 65 to 35 in the perfluoropolymer. The molar ratio of the tetrafluoroethylene monomer to the perfluoroalkylvinyl ether monomer in the second polymer is about 65:35 to about 95:5 in the second perfluoropolymer. The composition further includes a curative.Type: ApplicationFiled: December 15, 2010Publication date: April 14, 2011Applicants: Greene, Tweed of Delaware, Inc., Daikin Industries, Ltd.Inventors: Tsuyoshi Noguchi, Jiazhong Luo, Tatsuya Morikawa, Hirokazu Komori, Takafumi Yamato, Meiten Koh