Patents by Inventor Atsushi Takahara
Atsushi Takahara 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: 20160155532Abstract: A dielectric film includes an elastomer and nanoparticles dispersed in the elastomer while chemically bound to the elastomer. The nanoparticles have cyano groups and are manufactured by a sol-gel process using an organometallic compound. A method for manufacturing a dielectric film includes: producing a chelate compound of an organometallic compound; producing a sol of metallic oxide particles having cyano groups by adding a silane coupling agent having a cyano group, an organic solvent, and water to the chelate compound; preparing a mixed solution by mixing the sol of the metallic oxide particles having cyano groups and a polymer solution containing a rubber polymer having a functional group capable of reacting with a hydroxy group; and forming a dielectric film by applying the mixed solution to a substrate and by curing a coating film.Type: ApplicationFiled: January 22, 2016Publication date: June 2, 2016Applicants: Sumitomo Riko Company Limited, KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATIONInventors: Yota Kokubo, Shigeaki Takamatsu, Ryosuke Matsuno, Atsushi Takahara, Yuji Higaki
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Publication number: 20160111626Abstract: A flexible conductive material of the present invention is formed by dispersing a conductive agent containing carbon nanotubes in a matrix that contains a polymer formed by amide bond formation or imide bond formation of a polycyclic aromatic component and an oligomer component and that has a glass transition point of 20° C. or less. The flexible conductive material of the present invention has good dispersibility of a conductive agent containing carbon nanotubes and has an excellent following performance to an expanding and shrinking substrate. A transducer of the present invention includes a dielectric layer made of a polymer, a plurality of electrodes with the dielectric layer interposed therebetween, and wirings connected to the respective electrodes, and at least either the electrodes or the wirings include the flexible conductive material of the present invention.Type: ApplicationFiled: December 30, 2015Publication date: April 21, 2016Applicants: Sumitomo Riko Company Limited, KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATIONInventors: Yusaku TAKAGAKI, Jun KOBAYASHI, Yusuke YAMASHITA, Hitoshi YOSHIKAWA, Naotoshi NAKASHIMA, Atsushi TAKAHARA, Ryosuke MATSUNO
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Publication number: 20160075835Abstract: An ion-immobilized metal oxide particle includes a metal oxide particle and an anion that itself includes a) a reactive group that consists of an alkoxysilyl group and b) an anionic group consisting of a carboxylate (—COO?) group or a sulfonate (—SO3?) group, the anion being immobilized to the metal oxide particle via a silanol group derived from the reactive group. An elastomer includes the ion-immobilized metal oxide particle, and a transducer includes the elastomer.Type: ApplicationFiled: November 3, 2015Publication date: March 17, 2016Applicants: SUMITOMO RIKO COMPANY LIMITED, KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATIONInventors: Shigeaki TAKAMATSU, Ryosuke MATSUNO, Shingi KUMAGAI, Yota KOKUBO, Kazunobu HASHIMOTO, Hitoshi YOSHIKAWA, Atsushi TAKAHARA, Hideyuki OTSUKA
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Patent number: 9212263Abstract: A reactive ionic liquid to be used as an ionic component that is contained in an ion-containing layer in a transducer arranged in contact with a high-resistance layer as a dielectric layer of the transducer, and is restrained from migrating from the ion-containing layer to the high-resistance layer on application of a voltage is provided. The reactive ionic liquid comprises an ion pair that consists of an anion and a cation. In the reactive ionic liquid, (a) the anion comprises (a1) a reactive group that consists of an alkoxysilyl group and (a2) an anionic group consisting of a carboxylate (—COO?) group or a sulfonate (—SO3?) group. (b) The cation (b1) consists of an imidazolium, ammonium, pyrrolidinium, morpholinium, or phosphonium cation, and (b2) does not comprise an N—H group or a P—H group.Type: GrantFiled: June 16, 2014Date of Patent: December 15, 2015Assignees: SUMITOMO RIKO COMPANY LIMITED, KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATIONInventors: Shigeaki Takamatsu, Ryosuke Matsuno, Shingi Kumagai, Yota Kokubo, Kazunobu Hashimoto, Hitoshi Yoshikawa, Atsushi Takahara, Hideyuki Otsuka
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Publication number: 20150266984Abstract: Provided are: surface modification method for imparting slidability to surface of elastic body such as vulcanized rubber or thermoplastic elastomer without using expensive self-lubricating resin; surface-modified elastic body with polymer brush formed on its surface; and gasket for injector and injector formed of surface-modified elastic body. The surface modification method applies to surface of thermoplastic elastomer or vulcanized rubber.Type: ApplicationFiled: June 3, 2015Publication date: September 24, 2015Applicants: SUMITOMO RUBBER INDUSTRIES, LTD., KYUSHU UNIVERSITYInventors: Yasuhisa MINAGAWA, Yasuhiko KONDO, Tetsuo MIZOGUCHI, Atsushi TAKAHARA, Motoyasu KOBAYASHI
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Publication number: 20150204697Abstract: A conductive material includes metal nanowires and an extensible copolymer having an N—C?O structure and combined with the metal nanowires. The conductive material has excellent elongation properties and has an electrical resistance that is unlikely to increase even when the conductive material is extended. A method for producing a conductive material includes: a copolymer production step of polymerizing a plurality of monomers including a growth direction control monomer that has an N—C?O structure and controls a growth direction of metal nanowires to produce an extensible copolymer; a reaction step of reacting a metal compound in a solvent containing the copolymer to grow metal nanowires in a longitudinal direction; and an extraction step of extracting a product from the solution after the reaction.Type: ApplicationFiled: March 30, 2015Publication date: July 23, 2015Applicants: SUMITOMO RIKO COMPANY LIMITED, KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATIONInventors: Yutaro TAGUCHI, Hitoshi YOSHIKAWA, Hidetsugu TORIHARA, Ryosuke MATSUNO, Masaharu TSUJI, Atsushi TAKAHARA
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Patent number: 9074023Abstract: Provided are: surface modification method for imparting slidability to surface of elastic body such as vulcanized rubber or thermoplastic elastomer without using expensive self-lubricating resin; surface-modified elastic body with polymer brush formed on its surface; and gasket for injector and injector formed of surface-modified elastic body. The surface modification method applies to surface of thermoplastic elastomer or vulcanized rubber.Type: GrantFiled: December 26, 2011Date of Patent: July 7, 2015Assignees: SUMITOMO RUBBER INDUSTRIES, LTD., KYUSHU UNIVERSITYInventors: Yasuhisa Minagawa, Yasuhiko Kondo, Tetsuo Mizoguchi, Atsushi Takahara, Motoyasu Kobayashi
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Publication number: 20150137666Abstract: A reactive ionic liquid to be used as an ionic component that is contained in an ion-containing layer in a transducer arranged in contact with a high-resistance layer as a dielectric layer of the transducer, and is restrained from migrating from the ion-containing layer to the high-resistance layer on application of a voltage is provided. The reactive ionic liquid comprises an ion pair that consists of an anion and a cation. (a) The cation (a1) is an imidazolium or quaternary ammonium cation, and (a2) comprises a reactive group that consists of an alkoxysilyl or phosphonate group. (b) The anion (b1) is a sulfonate, sulfonylimide, or nitrobenzoate anion.Type: ApplicationFiled: December 17, 2014Publication date: May 21, 2015Applicants: SUMITOMO RIKO COMPANY LIMITED, KYUSHU UNIVERSITYInventors: Shigeaki TAKAMATSU, Yota KOKUBO, Kazunobu HASHIMOTO, Hitoshi YOSHIKAWA, Atsushi TAKAHARA, Ryousuke MATSUNO, Hideyuki OTSUKA
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Publication number: 20140300247Abstract: A reactive ionic liquid to be used as an ionic component that is contained in an ion-containing layer in a transducer arranged in contact with a high-resistance layer as a dielectric layer of the transducer, and is restrained from migrating from the ion-containing layer to the high-resistance layer on application of a voltage is provided. The reactive ionic liquid comprises an ion pair that consists of an anion and a cation. In the reactive ionic liquid, (a) the anion comprises (a1) a reactive group that consists of an alkoxysilyl group and (a2) an anionic group consisting of a carboxylate (—COO?) group or a sulfonate (—SO3?) group. (b) The cation (b1) consists of an imidazolium, ammonium, pyrrolidinium, morpholinium, or phosphonium cation, and (b2) does not comprise an N—H group or a P—H group.Type: ApplicationFiled: June 16, 2014Publication date: October 9, 2014Inventors: Shigeaki TAKAMATSU, Ryosuke MATSUNO, Shingi KUMAGAI, Yota KOKUBO, Kazunobu HASHIMOTO, Hitoshi YOSHIKAWA, Atsushi TAKAHARA, Hideyuki OTSUKA
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Patent number: 8742044Abstract: A method for producing a polymer nanocomposite, includes: after expanding an interlayer space of a layered inorganic compound using an organic onium salt, immobilizing a radical polymerization initiator having a group represented by formula (1) on an interlayer surface of the layered inorganic compound via a covalent bond; and carrying out surface-initiated radical polymerization in a monomer from the immobilized radical polymerization initiator. Preferably, in the radical polymerization initiator having the group represented by the general formula (1), at least one of X1 to X3 in the formula is a chlorine atom, or R1 in the formula is a C1-25 alkylene group or a C2-25 alkenylene group optionally interrupted by an oxygen atom or an ester group and optionally substituted by a phenyl group: R1 represents a C1-25 alkylene group, a C2-25 alkenylene group, a C5-8 cycloalkylene group, or a C6-12 arylene group.Type: GrantFiled: November 18, 2009Date of Patent: June 3, 2014Assignees: Kyushu University, National University Corporation, Adeka CorporationInventors: Atsushi Takahara, Hideyuki Otsuka, Motoyasu Kobayashi, Hideaki Yukutake, Tetsuo Kamimoto
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Publication number: 20130274367Abstract: Provided are: surface modification method for imparting slidability to surface of elastic body such as vulcanized rubber or thermoplastic elastomer without using expensive self-lubricating resin; surface-modified elastic body with polymer brush formed on its surface; and gasket for injector and injector formed of surface-modified elastic body. The surface modification method applies to surface of thermoplastic elastomer or vulcanized rubber.Type: ApplicationFiled: December 26, 2011Publication date: October 17, 2013Applicants: KYUSHU UNIVERSITY, SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Yasuhisa Minagawa, Yasuhiko Kondo, Tetsuo Mizoguchi, Atsushi Takahara, Motoyasu Kobayashi
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Publication number: 20110213111Abstract: A method for producing a polymer nanocomposite, includes: after expanding an interlayer space of a layered inorganic compound using an organic onium salt, immobilizing a radical polymerization initiator having a group represented by formula (1) on an interlayer surface of the layered inorganic compound via a covalent bond; and carrying out surface-initiated radical polymerization in a monomer from the immobilized radical polymerization initiator. Preferably, in the radical polymerization initiator having the group represented by the general formula (1), at least one of X1 to X3 in the formula is a chlorine atom, or R1 in the formula is a C1-25 alkylene group or a C2-25 alkenylene group optionally interrupted by an oxygen atom or an ester group and optionally substituted by a phenyl group: R1 represents a C1-25 alkylene group, a C2-25 alkenylene group, a C5-8 cycloalkylene group, or a C6-12 arylene group.Type: ApplicationFiled: November 18, 2009Publication date: September 1, 2011Applicants: KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CO., ADEKA CORPORATONInventors: Atsushi Takahara, Hideyuki Otsuka, Motoyasu Kobayashi, Hideaki Yukutake, Tetsuo Kamimoto
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Publication number: 20110001251Abstract: Disclosed is an adhesive composition, comprising, as essential components, a thermosetting resin component A and a high-molecular component B which are evenly compatible and miscible with each other at a temperature of 5 to 40° C. without being separated from each other, and a curing agent component C, wherein after the adhesive composition comes into contact with an adherend and after the thermosetting resin component A is cured, the thermosetting resin component A is separated, in the adhesive composition, into particulate structures wherein the concentration of the thermosetting resin component A is larger than that in the surrounding of the particulate structures, and further the particulate structures are formed in a larger amount near a surface of the composition which contacts the adherend than inside the adhesive composition. The adhesive composition can be used in thin-film bonding.Type: ApplicationFiled: July 3, 2008Publication date: January 6, 2011Inventors: Yutaka Gou, Kazuhiro Miyauchi, Takashi Inoue, Atsushi Takahara, Hiroshi Jinnai
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Patent number: 7631826Abstract: A crushing apparatus (10) includes a supplying section (30) for receiving a solid material (M), a crushing section (50) for crushing the material (M) supplied from the supplying section (30), and a discharging section (100) for discharging the material (M) crushed by the crushing section (50) to the outside. The crushing section (50) is formed by partitioning with a first rotating disk (60) and a second rotating disk (70) respectively connected to a first rotating shaft (110) or a second rotating shaft (111). The first rotating disk (60) and the second rotating disk (70) are arranged with pluralities of blades (63, 73) projected from faces thereof opposed to each other and formed with through holes (61, 71) penetrated in an axial direction at positions proximate to a rotational axis center thereof.Type: GrantFiled: May 10, 2005Date of Patent: December 15, 2009Assignees: Yutaka Mfg. Co., Ltd.Inventors: Masataka Tamura, Masayasu Kurachi, Hisanori Yamashita, Atsushi Takahara
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Patent number: 7305010Abstract: In order to make the client host capable of learning an accounting information or an authentication failure information, the accounting information or the authentication failure reason is notified from the routing device 2 to the client host 3, by adding an information regarding the accounting or an information regarding a reason for the authentication failure of the client host 3, to a packet of a protocol based on IGMP or MLD which is a multicast control packet between the client host 3 and the router device 2.Type: GrantFiled: January 13, 2003Date of Patent: December 4, 2007Assignee: Nippon Telegraph and Telephone CorporationInventors: Tsunemasa Hayashi, Atsushi Takahara, Takako Sato, Daisuke Ando
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Publication number: 20070210196Abstract: A crushing apparatus (10) includes a supplying section (30) for receiving a solid material (M), a crushing section (50) for crushing the material (M) supplied from the supplying section (30), and a discharging section (100) for discharging the material (M) crushed by the crushing section (50) to the outside. The crushing section (50) is formed by partitioning with a first rotating disk (60) and a second rotating disk (70) respectively connected to a first rotating shaft (110) or a second rotating shaft (111). The first rotating disk (60) and the second rotating disk (70) are arranged with pluralities of blades (63, 73) projected from faces thereof opposed to each other and formed with through holes (61, 71) penetrated in an axial direction at positions proximate to a rotational axis center thereof.Type: ApplicationFiled: May 10, 2005Publication date: September 13, 2007Inventors: Masataka Tamura, Masayasu Kurachi, Hisanori Yamashita, Atsushi Takahara
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Publication number: 20060159849Abstract: According to the present invention, there can be obtained an anisotropic material comprising an alternating-line pattern and a layer of a functional compound formed on the surface of the alternating-line pattern, wherein one type of lines is made of a fluorine-containing compound and the other type of lines is made of a non-fluorinated compound in the alternating-line surface. When using, as a template, a pattern surface produced by using a fluorine compound having a specific structure as a surface-treating agent, a structure of a functional compound of nanometer to micrometer order can be produced by a process of applying a functional compound solution. Properties of a functional compound can be improved by using, as a template, a pattern surface, at least one region of which is surface-treated with a fluorine compound having a specific structure.Type: ApplicationFiled: September 18, 2003Publication date: July 20, 2006Applicant: DAIKIN INDUSTRIES LTD.Inventors: Masamichi Morita, Hideyuki Otsuka, Atsushi Takahara, Ikuo Yamamoto, Yasuo Itami, Hirokazu Aoyama
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Patent number: 6643463Abstract: An optical wavelength division multiplexing transmission network system having a star-topology network is disclosed, which comprises an arrayed-waveguide grating type multiplexing/demultiplexing circuit having N input ports and N output ports, and N transmitting/receiving apparatuses, each apparatus including a transmitter, receiver, demultiplexer, multiplexer, and N 2-input and 2-output optical path switching elements corresponding to N wavelengths, so as to cope with a damage to a transmitting or receiving portion corresponding to a specific wavelength. Each switching element is independently switched between first and second connective conditions.Type: GrantFiled: June 21, 2000Date of Patent: November 4, 2003Assignee: Nippon Telegraph and Telephone CorporationInventors: Senichi Suzuki, Masao Kawachi, Kennosuke Fukami, Yuji Akatsu, Kazutosi Kato, Mitsuru Harada, Junichi Akahani, Atsushi Takahara
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Publication number: 20030147392Abstract: In order to make the client host capable of learning an accounting information or an authentication failure information, the accounting information or the authentication failure reason is notified from the routing device 2 to the client host 3, by adding an information regarding the accounting or an information regarding a reason for the authentication failure of the client host 3, to a packet of a protocol based on IGMP or MLD which is a multicast control packet between the client host 3 and the router device 2.Type: ApplicationFiled: January 13, 2003Publication date: August 7, 2003Inventors: Tsunemasa Hayashi, Atsushi Takahara, Takako Sato, Daisuke Ando
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Patent number: 4679004Abstract: A frequency synthesizer comprises a voltage controlled generator (11) for generating an output signal of a desired frequency in response to a control signal and a reference signal generator (13) for generating a reference frequency signal. The output signal is sampled (21) by the reference frequency to produce a sampled signal. The reference frequency signal is frequency divided (22) by a division factor determined by the desired frequency and the reference frequency. The sampled signal and the divided signal are compared (15) in phase and frequency and the control signal is produced depending on the phase difference between the two signals. For the division factor, two different values are determined by the desired frequency and the reference signal and one of the two values is selected according to a selection pattern determined by the reference frequency and the desired frequency.Type: GrantFiled: September 2, 1986Date of Patent: July 7, 1987Assignee: NEC CorporationInventors: Atsushi Takahara, Tomoyoshi Ishikawa, Hiroyuki Tanaka, Tamio Okui