Patents by Inventor Yushu Matsushita
Yushu Matsushita 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: 20230212344Abstract: Provided is a thermoplastic elastomer composition for an impact-resistant material, comprising a block copolymer composition comprising a block copolymer (B) in which a functional group capable of noncovalent bonding is introduced into a block copolymer (A) including at least one aromatic vinyl polymer block and at least one conjugated diene polymer block.Type: ApplicationFiled: February 4, 2021Publication date: July 6, 2023Applicants: ZEON CORPORATION, National University Corporation Tokai National Higher Education and Research SystemInventors: Sadaharu HASHIMOTO, Atsushi NOZAWA, Atsushi NORO, Takato KAJITA, Haruka TANAKA, Yushu MATSUSHITA
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Patent number: 11492452Abstract: A main purpose of the present invention is to provide a multi-block copolymer composition having good elasticity and excellent stress relaxation properties, as well as small tension set. The present invention achieves the purpose by providing a multi-block copolymer composition obtained by a modification treatment, the composition including a block copolymer B formed by introducing a functional group capable of forming a non-covalent bond to a block copolymer A; wherein the block copolymer A includes a block copolymer A1 having a specific primary structure and a block copolymer A2 having a specific primary structure, and the mass ratio (A1/A2) of the block copolymer A1 and the block copolymer A2 is 100/0 to 50/50.Type: GrantFiled: August 23, 2018Date of Patent: November 8, 2022Assignees: ZEON CORPORATION, NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITYInventors: Kousuke Isobe, Sadaharu Hashimoto, Atsushi Nozawa, Atsushi Noro, Takato Kajita, Yushu Matsushita
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Patent number: 11466150Abstract: A main object of the present invention is to provide a block copolymer composition which has good elasticity, while having excellent stress relaxation properties. The object is achieved by providing a block copolymer composition obtained by a modification treatment, the block copolymer composition comprising a block copolymer B formed by introducing a functional group capable of forming a non-covalent bond into a block copolymer A including at least one aromatic vinyl polymer block and at least one conjugated diene polymer block.Type: GrantFiled: May 1, 2018Date of Patent: October 11, 2022Assignees: ZEON CORPORATION, NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITYInventors: Kousuke Isobe, Sadaharu Hashimoto, Atsushi Nozawa, Ryoji Kameyama, Atsushi Noro, Takato Kajita, Yushu Matsushita
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Patent number: 11459417Abstract: The present invention provides a block copolymer composition comprising a block copolymer B formed by introducing a functional group capable of forming a non-covalent bond into a block copolymer A including at least one aromatic vinyl polymer block and at least one conjugated diene polymer block, wherein: the block copolymer B includes an ionic group as the functional group capable of forming a non-covalent bond.Type: GrantFiled: April 25, 2019Date of Patent: October 4, 2022Assignees: ZEON CORPORATION, NATIONAL UNIVERSITY CORPORATION TOKAI NATIONAL HIGHER EDUCATION AND RESEARCH SYSTEMInventors: Kousuke Isobe, Sadaharu Hashimoto, Atsushi Noro, Takato Kajita, Haruka Tanaka, Yushu Matsushita
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Patent number: 11322764Abstract: A proton conducting film includes a polymer having a first part and a second part which are connected by a covalent bond and a plasticizer. The first parts aggregate with each other to form a domain at an operation temperature of the proton conducting film, and the second part crosslinks the domains. The second part has a proton accepting group, and the plasticizer contains a proton donating compound having a pKa of 2.5 or less, and thus the plasticizer penetrates into the second part, and a glass transition temperature of the polymer is lowered compared to when the plasticizer is not included.Type: GrantFiled: October 18, 2019Date of Patent: May 3, 2022Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITYInventors: Naoki Nakamura, Atsushi Noro, Takato Kajita, Haruka Tanaka, Yushu Matsushita
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Publication number: 20210230336Abstract: The present invention provides a block copolymer composition comprising a block copolymer B formed by introducing a functional group capable of forming a non-covalent bond into a block copolymer A including at least one aromatic vinyl polymer block and at least one conjugated diene polymer block, wherein: the block copolymer B includes an ionic group as the functional group capable of forming a non-covalent bond.Type: ApplicationFiled: April 25, 2019Publication date: July 29, 2021Applicants: ZEON CORPORATION, NATIONAL UNIVERSITY CORPORATION TOKAI NATIONAL HIGHER EDUCATION AND RESEARCH SYSTEMInventors: Kousuke ISOBE, Sadaharu HASHIMOTO, Atsushi NORO, Takato KAJITA, Haruka TANAKA, Yushu MATSUSHITA
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Patent number: 10950882Abstract: A proton-conductive membrane is provided, which exhibits high proton conductivity even in an anhydrous environment. The proton-conductive membrane includes a crosslinked polymer and a plasticizer, wherein the crosslinked polymer includes a proton acceptor group in an amount equal to not less than 10 mol % of repeating units constituting the crosslinked polymer, the plasticizer includes a proton donor compound having a pKa value of not more than 2.5, and the plasticizer is a viscoelastic solid in a temperature range of 50° C. to 120° C.Type: GrantFiled: January 24, 2019Date of Patent: March 16, 2021Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITYInventors: Naoki Nakamura, Atsushi Noro, Takato Kajita, Haruka Tanaka, Yushu Matsushita
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Patent number: 10749200Abstract: A non-humidified proton-conductive membrane according to the present invention includes a polymer and a proton-conductive substance. The polymer includes a glassy or crystalline first site having a glass-transition temperature or melting temperature higher than the service temperature of the proton-conductive membrane and a second site capable of forming a noncovalent bond. The proton-conductive substance includes a proton-releasing/binding site capable of noncovalently binding to the second site of the polymer and a proton coordination site capable of coordinating to protons, the proton-releasing/binding site and the proton coordination site being included in different molecules that interact with each other or being included in the same molecule. A proton-conductive mixed phase that includes the second site to which the proton-releasing/binding site of the proton-conductive substance is bound and the proton-conductive substance is lower than the service temperature of the proton-conductive membrane.Type: GrantFiled: March 27, 2017Date of Patent: August 18, 2020Assignee: NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITYInventors: Atsushi Noro, Takato Kajita, Takahiro Mori, Yushu Matsushita
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Publication number: 20200255607Abstract: A main purpose of the present invention is to provide a multi-block copolymer composition having good elasticity and excellent stress relaxation properties, as well as small tension set. The present invention achieves the purpose by providing a multi-block copolymer composition obtained by a modification treatment, the composition including a block copolymer B formed by introducing a functional group capable of forming a non-covalent bond to a block copolymer A; wherein the block copolymer A includes a block copolymer A1 having a specific primary structure and a block copolymer A2 having a specific primary structure, and the mass ratio (A1/A2) of the block copolymer A1 and the block copolymer A2 is 100/0 to 50/50.Type: ApplicationFiled: August 23, 2018Publication date: August 13, 2020Applicants: ZEON CORPORATION, NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITYInventors: Kousuke ISOBE, Sadaharu HASHIMOTO, Atsushi NOZAWA, Atsushi NORO, Takato KAJITA, Yushu MATSUSHITA
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Publication number: 20200136164Abstract: A proton conducting film includes a polymer having a first part and a second part which are connected by a covalent bond and a plasticizer. The first parts aggregate with each other to form a domain at an operation temperature of the proton conducting film, and the second part crosslinks the domains. The second part has a proton accepting group, and the plasticizer contains a proton donating compound having a pKa of 2.5 or less, and thus the plasticizer penetrates into the second part, and a glass transition temperature of the polymer is lowered compared to when the plasticizer is not included.Type: ApplicationFiled: October 18, 2019Publication date: April 30, 2020Inventors: Naoki NAKAMURA, Atsushi NORO, Takato KAJITA, Haruka TANAKA, Yushu MATSUSHITA
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Publication number: 20200062948Abstract: A main object of the present invention is to provide a block copolymer composition which has good elasticity, while having excellent stress relaxation properties. The object is achieved by providing a block copolymer composition obtained by a modification treatment, the block copolymer composition comprising a block copolymer B formed by introducing a functional group capable of forming a non-covalent bond into a block copolymer A including at least one aromatic vinyl polymer block and at least one conjugated diene polymer block.Type: ApplicationFiled: May 1, 2018Publication date: February 27, 2020Applicants: ZEON CORPORATION, NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITYInventors: Kousuke ISOBE, Sadaharu HASHIMOTO, Atsushi NOZAWA, Ryoji KAMEYAMA, Atsushi NORO, Takato KAJITA, Yushu MATSUSHITA
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Publication number: 20190245234Abstract: [OBJECT] To provide a proton-conductive membrane which exhibits high proton conductivity even in an anhydrous environment. [SOLVING MEANS] Provided is a proton-conductive membrane including a crosslinked polymer and a plasticizer, wherein the crosslinked polymer includes a proton acceptor group in an amount equal to not less than 10 mol % of repeating units constituting the crosslinked polymer, the plasticizer includes a proton donor compound having a pKa value of not more than 2.5, and the plasticizer is a viscoelastic solid in a temperature range of 50° C. to 120° C.Type: ApplicationFiled: January 24, 2019Publication date: August 8, 2019Inventors: Naoki NAKAMURA, Atsushi NORO, Takato KAJITA, Haruka TANAKA, Yushu MATSUSHITA
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Publication number: 20190109343Abstract: A non-humidified proton-conductive membrane according to the present invention includes a polymer and a proton-conductive substance. The polymer includes a glassy or crystalline first site having a glass-transition temperature or melting temperature higher than the service temperature of the proton-conductive membrane and a second site capable of forming a noncovalent bond. The proton-conductive substance includes a proton-releasing/binding site capable of noncovalently binding to the second site of the polymer and a proton coordination site capable of coordinating to protons, the proton-releasing/binding site and the proton coordination site being included in different molecules that interact with each other or being included in the same molecule. A proton-conductive mixed phase that includes the second site to which the proton-releasing/binding site of the proton-conductive substance is bound and the proton-conductive substance is lower than the service temperature of the proton-conductive membrane.Type: ApplicationFiled: March 27, 2017Publication date: April 11, 2019Applicant: NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITYInventors: Atsushi NORO, Takato KAJITA, Takahiro MORI, Yushu MATSUSHITA
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Publication number: 20170129984Abstract: A polymer material for self-assembly of the present invention includes a multi-block copolymer containing a first polymer block with a structural unit having a specific structure as a main component and a second polymer block with a structural unit having a specific structure as a main component that are coupled with each other.Type: ApplicationFiled: November 10, 2016Publication date: May 11, 2017Applicants: NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITY, HORIBA STEC, CO., LTD.Inventors: Atsushi TAKANO, Mai TAKAKUWA, Kyotarou YAMADA, Yushu MATSUSHITA, Kazuhiro HIRAHARA, Toshiyuki HIMI, Yukio KAWAGUCHI, Terumasa KOSAKA
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Publication number: 20160187536Abstract: A photonic material capable of reflecting part of the light rays in a wavelength region from near-ultraviolet light to near-infrared light. The photonic material contains a block copolymer including a plurality of different polymer chains connected to one another. Each polymer chain independently forms a portion of an aggregated nanophase separated structure. At least one of the plurality of polymer chains is swelled with a non-volatile solvent. An example of such a photonic material may be a polystyrene-b-poly(2-vinylpyridine) block copolymer whose poly(2-vinylpyridine) phase is swelled with an ionic liquid.Type: ApplicationFiled: May 13, 2014Publication date: June 30, 2016Inventors: Atsushi NORO, Yusuke TOMITA, Satoru MATSUSHIMA, Yoshio SAGESHIMA, Yushu MATSUSHITA, Joseph J. WALISH, Edwin L. THOMAS
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Patent number: 8357754Abstract: A process for producing a microporous polymeric object to improve the degree of freedom for its various properties, compared to conventional processes, includes: mixing a block copolymer made of three or more kinds of segments with a polymer, wherein one or more of the segments are made of monomer units having a first functional group forming ionic and/or hydrogen bond, the segments constitute a co-continuous structure having mutually-independent and continuous regions due to a phase separation based on incompatibility between the segments, and the polymer has, at other than polymer chain terminals, a second functional group forming such bond with the first functional group, thereby allowing the segments to associate with the polymer at many points; forming a co-continuous structure including a region composed of the polymer and the segments due to the phase separation; and removing the polymer from the region by weakening the bond between the functional groups.Type: GrantFiled: May 8, 2012Date of Patent: January 22, 2013Assignee: Nitto Denko CorporationInventors: Takahisa Konishi, Takuji Shintani, Yushu Matsushita, Atsushi Takano, Takeshi Asari
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Patent number: 8338534Abstract: A process for producing a microporous polymeric object to improve the degree of freedom for its various properties, compared to conventional processes, includes: mixing a block copolymer made of three or more kinds of segments with a polymer, wherein one or more of the segments are made of monomer units having a first functional group forming ionic and/or hydrogen bond, the segments constitute a co-continuous structure having mutually-independent and continuous regions due to a phase separation based on incompatibility between the segments, and the polymer has, at other than polymer chain terminals, a second functional group forming such bond with the first functional group, thereby allowing the segments to associate with the polymer at many points; forming a co-continuous structure including a region composed of the polymer and the segments due to the phase separation; and removing the polymer from the region by weakening the bond between the functional groups.Type: GrantFiled: January 7, 2008Date of Patent: December 25, 2012Assignee: Nitto Denko CorporationInventors: Takahisa Konishi, Takuji Shintani, Yushu Matsushita, Atsushi Takano, Takeshi Asari
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Publication number: 20120252912Abstract: A process for producing a microporous polymeric object to improve the degree of freedom for its various properties, compared to conventional processes, includes: mixing a block copolymer made of three or more kinds of segments with a polymer, wherein one or more of the segments are made of monomer units having a first functional group forming ionic and/or hydrogen bond, the segments constitute a co-continuous structure having mutually-independent and continuous regions due to a phase separation based on incompatibility between the segments, and the polymer has, at other than polymer chain terminals, a second functional group forming such bond with the first functional group, thereby allowing the segments to associate with the polymer at many points; forming a co-continuous structure including a region composed of the polymer and the segments due to the phase separation; and removing the polymer from the region by weakening the bond between the functional groups.Type: ApplicationFiled: May 8, 2012Publication date: October 4, 2012Applicant: NITTO DENKO CORPORATIONInventors: Takahisa KONISHI, Takuji SHINTANI, Yushu MATSUSHITA, Atsushi TAKANO, Takeshi ASARI
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Publication number: 20100120985Abstract: A process for producing a polymeric object having a microphase-separated structure that can improve the degree of freedom for the structure to be formed is provided. A block copolymer composed of two or more segments and having a first segment composed of a monomer unit having a first functional group capable of forming an ionic bond and/or a hydrogen bond and a second segment incompatible with the first segment, and a polymer having, at other than the terminals of its polymer chain, a second functional group capable of forming an ionic bond and/or a hydrogen bond with the first functional group are mixed. Then, allowing the first segment to be associated with the polymer at many points by an ionic bond and/or a hydrogen bond, the mixture of the copolymer and the polymer is microphase separated. As a result, a polymeric object is formed including a region including the first segment and the polymer that have been associated with each other, and a region including the second segment.Type: ApplicationFiled: March 24, 2008Publication date: May 13, 2010Applicant: NITTO DENKO CORPORATIONInventors: Takahisa Konishi, Takuji Shintani, Yushu Matsushita, Atsushi Takano, Daisuke Kawaguchi
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Publication number: 20100036009Abstract: A process for producing a microporous polymeric object to improve the degree of freedom for its various properties, compared to conventional processes, includes: mixing a block copolymer made of three or more kinds of segments with a polymer, wherein one or more of the segments are made of monomer units having a first functional group forming ionic and/or hydrogen bond, the segments constitute a co-continuous structure having mutually-independent and continuous regions due to a phase separation based on incompatibility between the segments, and the polymer has, at other than polymer chain terminals, a second functional group forming such bond with the first functional group, thereby allowing the segments to associate with the polymer at many points; forming a co-continuous structure including a region composed of the polymer and the segments due to the phase separation; and removing the polymer from the region by weakening the bond between the functional groups.Type: ApplicationFiled: January 7, 2008Publication date: February 11, 2010Applicant: NITTO DENKO CORPORATIONInventors: Takahisa Konishi, Takuji Shintani, Yushu Matsushita, Atsushi Takano, Takeshi Asari