Patents by Inventor Takayuki Aoshima
Takayuki Aoshima 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: 20150024284Abstract: The present invention is to provide: a nonaqueous-electrolyte battery excellent in terms of safety during overcharge and high-temperature storability; and a nonaqueous electrolytic solution which gives the battery. The present invention relates to a nonaqueous electrolytic solution comprising an electrolyte and a nonaqueous solvent, wherein the nonaqueous electrolytic solution comprises at least one of specific compounds.Type: ApplicationFiled: September 30, 2014Publication date: January 22, 2015Applicant: MITSUBISHI CHEMICAL CORPORATIONInventors: Kanako TAKIGUCHI, Masamichi Onuki, Minoru Kotato, Ryo Yamaguchi, Takeshi Nakamura, Takayuki Aoshima
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Publication number: 20130338395Abstract: The invention relates to a method for producing a biomass-resource-derived polyurethane, which comprises: reacting a dicarboxylic acid and an aliphatic diol to produce a polyester polyol; and reacting the polyester polyol and a polyisocyanate compound, wherein the dicarboxylic acid contains at least one component derived from biomass resources, a content of an organic acid in the dicarboxylic acid is more than 0 ppm and not more than 1,000 ppm relative to the dicarboxylic acid, and a pKa value of the organic acid at 25° C. is not more than 3.7.Type: ApplicationFiled: April 26, 2013Publication date: December 19, 2013Inventors: Teruhiko OHARA, Naoki Suzuki, Yasuko Nakajima, Hiroto Itou, Takayuki Aoshima, Naoki Sugai, Takanao Matsumoto
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Publication number: 20130066038Abstract: An aliphatic polyester resin having excellent moldability and its production method are provided. When the amount of specific structural units contained in an aliphatic polyester resin is adjusted to an optimum amount, an aliphatic polyester resin having sufficient melt tension at the time of molding and excellent moldability than in the past and its production method is provided.Type: ApplicationFiled: September 14, 2012Publication date: March 14, 2013Applicant: Mitsubishi Chemical CorporationInventors: Toyomasa HOSHINO, Shinichiro MATSUZONO, Hiroyuki KANEKO, Toshiyuki HAMANO, Takayuki AOSHIMA, Tadashi UEDA
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Publication number: 20130035448Abstract: The invention relates to a method for producing a biomass-resource-derived polyurethane, which comprises: reacting a dicarboxylic acid and an aliphatic diol to produce a polyester polyol; and reacting the polyester polyol and a polyisocyanate compound, wherein the dicarboxylic acid contains at least one component derived from biomass resources, a content of an organic acid in the dicarboxylic acid is more than 0 ppm and not more than 1,000 ppm relative to the dicarboxylic acid, and a pKa value of the organic acid at 25° C. is not more than 3.7.Type: ApplicationFiled: October 1, 2012Publication date: February 7, 2013Inventors: Teruhiko OHARA, Naoki Suzuki, Yasuko Nakajima, Hiroto Itou, Takayuki Aoshima, Naoki Sugai, Takanao Matsumoto
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Publication number: 20130030145Abstract: The present invention provides a resin capable of contributing greatly to solve environmental problems and problems related to exhaustion of fossil fuel resources and having physical properties suited for practical use. The polyester according to the present invention has a diol and a dicarboxylic acid as constituent components and has an amount of terminal acid of 50 equivalents/metric ton or less.Type: ApplicationFiled: August 16, 2012Publication date: January 31, 2013Applicant: MITSUBISHI CHEMICAL CORPORATIONInventors: Takayuki AOSHIMA, Yasuaki Miki, Katsuhisa Kumazawa, Satoshi Katou, Tadashi Uyeda, Toyomasa Hoshino, Noboru Shintani, Kenji Yamagishi, Atsushi Isotani
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Patent number: 8318893Abstract: An aliphatic polyester resin having excellent moldability and its production method are provided. When the amount of specific structural units contained in an aliphatic polyester resin is adjusted to an optimum amount, an aliphatic polyester resin having sufficient melt tension at the time of molding and excellent moldability than in the past and its production method is provided.Type: GrantFiled: December 10, 2008Date of Patent: November 27, 2012Assignee: Mitsubishi Chemical CorporationInventors: Toyomasa Hoshino, Shinichiro Matsuzono, Hiroyuki Kaneko, Toshiyuki Hamano, Takayuki Aoshima, Tadashi Ueda
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Publication number: 20110288207Abstract: The present invention provides a resin capable of contributing greatly to solve environmental problems and problems related to exhaustion of fossil fuel resources and having physical properties suited for practical use. The polyester according to the present invention has a diol and a dicarboxylic acid as constituent components and has an amount of terminal acid of 50 equivalents/metric ton or less.Type: ApplicationFiled: June 24, 2011Publication date: November 24, 2011Applicant: MITSUBISHI CHEMICAL CORPORATIONInventors: Takayuki AOSHIMA, Yasuaki Miki, Katsuhisa Kumazawa, Satoshi Katou, Tadashi Uyeda, Toyomasa Hoshino, Noboru Shintani, Kenji Yamagishi, Atsushi Isotani
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Patent number: 8021864Abstract: The present invention provides a resin capable of contributing greatly to solve environmental problems and problems related to exhaustion of fossil fuel resources and having physical properties suited for practical use. The polyester according to the present invention has a diol and a dicarboxylic acid as constituent components and has an amount of terminal acid of 50 equivalents/metric ton or less.Type: GrantFiled: August 17, 2010Date of Patent: September 20, 2011Assignee: Mitsubishi Chemical CorporationInventors: Takayuki Aoshima, Yasuaki Miki, Katsuhisa Kumazawa, Satoshi Katou, Tadashi Uyeda, Toyomasa Hoshino, Noboru Shintani, Kenji Yamagishi, Atsushi Isotani
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Patent number: 7985566Abstract: The present invention provides a resin capable of contributing greatly to solve environmental problems and problems related to exhaustion of fossil fuel resources and having physical properties suited for practical use. The polyester according to the present invention has a diol and a dicarboxylic acid as constituent components and has an amount of terminal acid of 50 equivalents/metric ton or less.Type: GrantFiled: April 21, 2006Date of Patent: July 26, 2011Assignee: Mitsubishi Chemical CorporationInventors: Takayuki Aoshima, Yasuaki Miki, Katsuhisa Kumazawa, Satoshi Katou, Tadashi Uyeda, Toyomasa Hoshino, Noboru Shintani, Kenji Yamagishi, Atsushi Isotani
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Patent number: 7888084Abstract: The present invention provides a resin capable of contributing greatly to solve environmental problems and problems related to exhaustion of fossil fuel resources and having physical properties suited for practical use. The polyester according to the present invention has a diol and a dicarboxylic acid as constituent components and has an amount of terminal acid of 50 equivalents/metric ton or less.Type: GrantFiled: April 21, 2006Date of Patent: February 15, 2011Assignee: Mitsubishi Chemical CorporationInventors: Takayuki Aoshima, Yasuaki Miki, Katsuhisa Kumazawa, Satoshi Katou, Tadashi Uyeda, Toyomasa Hoshino, Noboru Shintani, Kenji Yamagishi, Atsushi Isotani
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Publication number: 20110009531Abstract: The present invention provides a resin capable of contributing greatly to solve environmental problems and problems related to exhaustion of fossil fuel resources and having physical properties suited for practical use. The polyester according to the present invention has a diol and a dicarboxylic acid as constituent components and has an amount of terminal acid of 50 equivalents/metric ton or less.Type: ApplicationFiled: August 17, 2010Publication date: January 13, 2011Applicant: MITSUBISHI CHEMICAL CORPORATIONInventors: TAKAYUKI AOSHIMA, YASUAKI MIKI, KATSUHISA KUMAZAWA, SATOSHI KATOU, TADASHI UYEDA, TOYOMASA HOSHINO, NOBORU SHINTANI, KENJI YAMAGISHI, ATSUSHI ISOTANI
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Publication number: 20100305297Abstract: An aliphatic polyester resin having excellent moldability and its production method are provided. When the amount of specific structural units contained in an aliphatic polyester resin is adjusted to an optimum amount, an aliphatic polyester resin having sufficient melt tension at the time of molding and excellent moldability than in the past and its production method is provided.Type: ApplicationFiled: December 10, 2008Publication date: December 2, 2010Applicant: Mitsubishi Chemical CorporationInventors: Toyomasa Hoshino, Shinichiro Matsuzono, Hiroyuki Kaneko, Toshiyuki Hamano, Takayuki Aoshima, Tadashi Ueda
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Publication number: 20090171037Abstract: The present invention provides a resin capable of contributing greatly to solve environmental problems and problems related to exhaustion of fossil fuel resources and having physical properties suited for practical use. The polyester according to the present invention has a diol and a dicarboxylic acid as constituent components and has an amount of terminal acid of 50 equivalents/metric ton or less.Type: ApplicationFiled: April 21, 2006Publication date: July 2, 2009Applicant: MITSUBISHI CHEMICAL CORPORATIONInventors: Takayuki Aoshima, Yasuaki Miki, Katsuhisa Kumazawa, Satoshi Katou, Tadashi Uyeda, Toyomasa Hoshino, Noboru Shintani, Kenji Yamagishi, Atsushi Isotani
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Patent number: 7317069Abstract: An object of the present invention is to provide an aliphatic polyester which is produced as a high-molecular-weight one without using a chain extender such as an isocyanate compound or a carbonate compound and is excellent in moldability in injection molding, blow molding, or extrusion molding, thermal stability, and mechanical properties such as tensile properties. The invention relates to an aliphatic polyester comprising an aliphatic diol unit, an aliphatic dicarboxylic acid unit, and a unit of an organic acid having a pKa value of 3.7 or below at 25° C., wherein a content of a carbonate bond contained in the polyester is less than 1 mol %, a content of a urethane bond is less than 0.06 mol %, a content of an aliphatic monooxymonocarboxylic acid unit is less than 0.Type: GrantFiled: November 21, 2005Date of Patent: January 8, 2008Assignee: Mitsubishi Chemical CorporationInventors: Takayuki Aoshima, Toyomasa Hoshino, Tadashi Uyeda, Yasuaki Miki
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Patent number: 7312002Abstract: To improve an impregnation property of an electrolyte and the cycle characteristics, which have been a problem in the case of employing a casing having a variable shape. A lithium secondary cell comprising a casing having a variable shape, and a cell element having a positive electrode, a negative electrode and an electrolyte, sealed in the casing, wherein a compound represented by following formula (1) is contained in the lithium secondary cell: A1-X-A2??(1) (wherein X is a Group VI element in the periodic table, and A1 and A2 represent an aromatic group, provided that A1 and A2 may be the same or different, and may be connected each other to constitute a ring.Type: GrantFiled: February 2, 2005Date of Patent: December 25, 2007Assignee: Mitsubishi Chemical CorporationInventors: Takayuki Aoshima, Iwao Soga, Mitsuharu Kobayashi
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Publication number: 20070093636Abstract: An object of the present invention is to provide an aliphatic polyester which is produced as a high-molecular-weight one without using a chain extender such as an isocyanate compound or a carbonate compound and is excellent in moldability in injection molding, blow molding, or extrusion molding, thermal stability, and mechanical properties such as tensile properties. The invention relates to an aliphatic polyester comprising an aliphatic diol unit, an aliphatic dicarboxylic acid unit, and a unit of an organic acid having a pKa value of 3.7 or below at 25° C., wherein a content of a carbonate bond contained in the polyester is less than 1 mol %, a content of a urethane bond is less than 0.06 mol %, a content of an aliphatic monooxymonocarboxylic acid unit is less than 0.Type: ApplicationFiled: December 20, 2006Publication date: April 26, 2007Applicant: MITSUBISHI CHEMICAL CORPORATIONInventors: Takayuki Aoshima, Toyomasa Hoshino, Tadashi Uyeda, Yasuaki Miki
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Publication number: 20060293492Abstract: An aliphatic polyester with a high polymerization degree having an excellent thermal stability is produced by reacting diol unit(s) and aliphatic dicarboxylic acid unit(s) in the presence of a catalyst comprising a metal oxide containing at least one element from the group consisting of metal elements belonging to the Groups 3 to 6 of the Periodic Table and at least one element selected from the group consisting of a silicon element and a metal element from Groups 1, 2, 12, 13, and 14 of the Periodic Table in an industrially advantageous process.Type: ApplicationFiled: March 16, 2006Publication date: December 28, 2006Applicant: MITSUBISHI CHEMICAL CORPORATIONInventors: Takayuki Aoshima, Toyomasa Hoshino, Hitoshi Nimura
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Publication number: 20060155100Abstract: An object of the present invention is to provide an aliphatic polyester which is produced as a high-molecular-weight one without using a chain extender such as an isocyanate compound or a carbonate compound and is excellent in moldability in injection molding, blow molding, or extrusion molding, thermal stability, and mechanical properties such as tensile properties. The invention relates to an aliphatic polyester comprising an aliphatic diol unit, an aliphatic dicarboxylic acid unit, and a unit of an organic acid having a pKa value of 3.7 or below at 25° C., wherein a content of a carbonate bond contained in the polyester is less than 1 mol %, a content of a urethane bond is less than 0.06 mol %, a content of an aliphatic monooxymonocarboxylic acid unit is less than 0.Type: ApplicationFiled: November 21, 2005Publication date: July 13, 2006Applicant: MITSUBISHI CHEMICAL CORPORATIONInventors: Takayuki Aoshima, Toyomasa Hoshino, Tadashi Uyeda, Yasuaki Miki
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Patent number: 6939644Abstract: To increase safety against overcharging of a lithium secondary cell which uses a lithium-nickel compound oxide as a positive electrode active material. A lithium secondary cell comprises a casing (2,3) and a lithium secondary cell element (1) using a lithium-nickel compound oxide as a positive electrode active material, accommodated in the casing. The specific surface area of the lithium-nickel compound oxide is from 0.1 to 10 m2/g, and a surface area capacity ratio S/C, i.e. a ratio of a cell surface area S (cm2) to a cell capacity (mAh), is from 0.05 to 5.Type: GrantFiled: October 14, 2003Date of Patent: September 6, 2005Assignee: Mitsubishi Chemical CorporationInventors: Takayuki Aoshima, Iwao Soga
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Patent number: 6908712Abstract: To improve an impregnation property of an electrolyte and the cycle characteristics, which have been a problem in the case of employing a casing having a variable shape. A lithium secondary cell comprising a casing having a variable shape, and a cell element having a positive electrode, a negative electrode and an electrolyte, sealed in the casing, wherein a compound represented by following formula (1) is contained in the lithium secondary cell: A1-X-A2??(1) (wherein X is a Group VI element in the periodic table, and A1 and A2 represent an aromatic group, provided that A1 and A2 may be the same or different, and may be connected each other to constitute a ring.Type: GrantFiled: August 27, 2002Date of Patent: June 21, 2005Assignee: Mitsubishi Chemical CorporationInventors: Takayuki Aoshima, Iwao Soga, Mitsuharu Kobayashi