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).

  • Publication number: 20160155532
    Abstract: 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: Application
    Filed: January 22, 2016
    Publication date: June 2, 2016
    Applicants: Sumitomo Riko Company Limited, KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION
    Inventors: Yota Kokubo, Shigeaki Takamatsu, Ryosuke Matsuno, Atsushi Takahara, Yuji Higaki
  • Publication number: 20160111626
    Abstract: 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: Application
    Filed: December 30, 2015
    Publication date: April 21, 2016
    Applicants: Sumitomo Riko Company Limited, KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION
    Inventors: Yusaku TAKAGAKI, Jun KOBAYASHI, Yusuke YAMASHITA, Hitoshi YOSHIKAWA, Naotoshi NAKASHIMA, Atsushi TAKAHARA, Ryosuke MATSUNO
  • Publication number: 20160075835
    Abstract: 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: Application
    Filed: November 3, 2015
    Publication date: March 17, 2016
    Applicants: SUMITOMO RIKO COMPANY LIMITED, KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION
    Inventors: Shigeaki TAKAMATSU, Ryosuke MATSUNO, Shingi KUMAGAI, Yota KOKUBO, Kazunobu HASHIMOTO, Hitoshi YOSHIKAWA, Atsushi TAKAHARA, Hideyuki OTSUKA
  • Patent number: 9212263
    Abstract: 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: Grant
    Filed: June 16, 2014
    Date of Patent: December 15, 2015
    Assignees: SUMITOMO RIKO COMPANY LIMITED, KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION
    Inventors: Shigeaki Takamatsu, Ryosuke Matsuno, Shingi Kumagai, Yota Kokubo, Kazunobu Hashimoto, Hitoshi Yoshikawa, Atsushi Takahara, Hideyuki Otsuka
  • Publication number: 20150266984
    Abstract: 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: Application
    Filed: June 3, 2015
    Publication date: September 24, 2015
    Applicants: SUMITOMO RUBBER INDUSTRIES, LTD., KYUSHU UNIVERSITY
    Inventors: Yasuhisa MINAGAWA, Yasuhiko KONDO, Tetsuo MIZOGUCHI, Atsushi TAKAHARA, Motoyasu KOBAYASHI
  • Publication number: 20150204697
    Abstract: 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: Application
    Filed: March 30, 2015
    Publication date: July 23, 2015
    Applicants: SUMITOMO RIKO COMPANY LIMITED, KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION
    Inventors: Yutaro TAGUCHI, Hitoshi YOSHIKAWA, Hidetsugu TORIHARA, Ryosuke MATSUNO, Masaharu TSUJI, Atsushi TAKAHARA
  • Patent number: 9074023
    Abstract: 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: Grant
    Filed: December 26, 2011
    Date of Patent: July 7, 2015
    Assignees: SUMITOMO RUBBER INDUSTRIES, LTD., KYUSHU UNIVERSITY
    Inventors: Yasuhisa Minagawa, Yasuhiko Kondo, Tetsuo Mizoguchi, Atsushi Takahara, Motoyasu Kobayashi
  • Publication number: 20150137666
    Abstract: 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: Application
    Filed: December 17, 2014
    Publication date: May 21, 2015
    Applicants: SUMITOMO RIKO COMPANY LIMITED, KYUSHU UNIVERSITY
    Inventors: Shigeaki TAKAMATSU, Yota KOKUBO, Kazunobu HASHIMOTO, Hitoshi YOSHIKAWA, Atsushi TAKAHARA, Ryousuke MATSUNO, Hideyuki OTSUKA
  • Publication number: 20140300247
    Abstract: 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: Application
    Filed: June 16, 2014
    Publication date: October 9, 2014
    Inventors: Shigeaki TAKAMATSU, Ryosuke MATSUNO, Shingi KUMAGAI, Yota KOKUBO, Kazunobu HASHIMOTO, Hitoshi YOSHIKAWA, Atsushi TAKAHARA, Hideyuki OTSUKA
  • Patent number: 8742044
    Abstract: 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: Grant
    Filed: November 18, 2009
    Date of Patent: June 3, 2014
    Assignees: Kyushu University, National University Corporation, Adeka Corporation
    Inventors: Atsushi Takahara, Hideyuki Otsuka, Motoyasu Kobayashi, Hideaki Yukutake, Tetsuo Kamimoto
  • Publication number: 20130274367
    Abstract: 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: Application
    Filed: December 26, 2011
    Publication date: October 17, 2013
    Applicants: KYUSHU UNIVERSITY, SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Yasuhisa Minagawa, Yasuhiko Kondo, Tetsuo Mizoguchi, Atsushi Takahara, Motoyasu Kobayashi
  • Publication number: 20110213111
    Abstract: 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: Application
    Filed: November 18, 2009
    Publication date: September 1, 2011
    Applicants: KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CO., ADEKA CORPORATON
    Inventors: Atsushi Takahara, Hideyuki Otsuka, Motoyasu Kobayashi, Hideaki Yukutake, Tetsuo Kamimoto
  • Publication number: 20110001251
    Abstract: 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: Application
    Filed: July 3, 2008
    Publication date: January 6, 2011
    Inventors: Yutaka Gou, Kazuhiro Miyauchi, Takashi Inoue, Atsushi Takahara, Hiroshi Jinnai
  • Patent number: 7631826
    Abstract: 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: Grant
    Filed: May 10, 2005
    Date of Patent: December 15, 2009
    Assignees: Yutaka Mfg. Co., Ltd.
    Inventors: Masataka Tamura, Masayasu Kurachi, Hisanori Yamashita, Atsushi Takahara
  • Patent number: 7305010
    Abstract: 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: Grant
    Filed: January 13, 2003
    Date of Patent: December 4, 2007
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Tsunemasa Hayashi, Atsushi Takahara, Takako Sato, Daisuke Ando
  • Publication number: 20070210196
    Abstract: 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: Application
    Filed: May 10, 2005
    Publication date: September 13, 2007
    Inventors: Masataka Tamura, Masayasu Kurachi, Hisanori Yamashita, Atsushi Takahara
  • Publication number: 20060159849
    Abstract: 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: Application
    Filed: September 18, 2003
    Publication date: July 20, 2006
    Applicant: DAIKIN INDUSTRIES LTD.
    Inventors: Masamichi Morita, Hideyuki Otsuka, Atsushi Takahara, Ikuo Yamamoto, Yasuo Itami, Hirokazu Aoyama
  • Patent number: 6643463
    Abstract: 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: Grant
    Filed: June 21, 2000
    Date of Patent: November 4, 2003
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Senichi Suzuki, Masao Kawachi, Kennosuke Fukami, Yuji Akatsu, Kazutosi Kato, Mitsuru Harada, Junichi Akahani, Atsushi Takahara
  • Publication number: 20030147392
    Abstract: 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: Application
    Filed: January 13, 2003
    Publication date: August 7, 2003
    Inventors: Tsunemasa Hayashi, Atsushi Takahara, Takako Sato, Daisuke Ando
  • Patent number: 4679004
    Abstract: 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: Grant
    Filed: September 2, 1986
    Date of Patent: July 7, 1987
    Assignee: NEC Corporation
    Inventors: Atsushi Takahara, Tomoyoshi Ishikawa, Hiroyuki Tanaka, Tamio Okui