Patents Assigned to Tokyo University of Science Educational Foundation Administrative Organization
  • Patent number: 10287501
    Abstract: A liquid crystal display element having an improved response speed by using a liquid crystal compound having a high K33, while neither improving nor deteriorating all the characteristics as a liquid crystal display element. The liquid crystal display element 10 of the present invention has a first substrate 15, a second substrate 15?, and a liquid crystal composition layer 5 interposed between the first substrate 15 and the second substrate 15?, wherein at least one of the first substrate 15 and the second substrate 15? has an electrode that controls the liquid crystal composition layer 5 and the bend elastic constant K33 of at least one kind of liquid crystal compounds in the liquid crystal composition constituting the liquid crystal composition layer 5 is 20 pN or more.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: May 14, 2019
    Assignees: TOKYO INSTITUTE OF TECHNOLOGY, TOKYO UNIVERSITY OF SCIENCE EDUCATIONAL FOUNDATION ADMINISTRATIVE ORGANIZATION, DIC Corporation
    Inventors: Hideo Takezoe, Satoshi Aya, Takashi Yamashita, Kunihiko Okano
  • Patent number: 10175183
    Abstract: An agent for searching for protein crystallization conditions, containing a water-swellable layered silicate having a fluorine atom and a hydroxyl group, wherein the fluorine atom is covalently bonded to the silicate by isomorphous substitution with the hydroxyl group. A method of searching for protein crystallization conditions, which comprises a step of mixing the agent for searching for protein crystallization conditions described above and a solution in which a protein is dissolved.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: January 8, 2019
    Assignees: KUNIMINE INDUSTRIES CO., LTD., TOKYO UNIVERSITY OF SCIENCE EDUCATIONAL FOUNDATION ADMINISTRATIVE ORGANIZATION
    Inventors: Keiichi Kurosaka, Munehiro Kubota, Kengo Sakaguchi, Keita Ino, Itsumi Udagawa, Kazuki Iwabata, Yoichi Takakusagi, Yasutaka Seki
  • Patent number: 9692043
    Abstract: An active material for a nonaqueous electrolyte energy storage device contains a lithium-transition metal composite oxide having a crystal structure attributable to space group Fm-3m and represented by the compositional formula (1): Li1+xNbyMezApO2??(1) wherein Me is a transition metal including Fe and/or Mn, 0<x<1, 0<y<0.5, 0.25?z<1, A is an element other than Nb and Me, and 0?p?0.2.
    Type: Grant
    Filed: March 26, 2014
    Date of Patent: June 27, 2017
    Assignees: Tokyo University of Science Educational Foundation Administrative Organization, GS Yuasa International Ltd.
    Inventors: Mitsue Takeuchi, Naoaki Yabuuchi, Shinichi Komaba, Daisuke Endo
  • Patent number: 9559381
    Abstract: Disclosed is a sodium-ion secondary battery having excellent charge and discharge efficiencies as well as excellent charge and discharge characteristics, wherein charging and discharging can be repeated without causing problems such as deterioration in battery performance. Specifically disclosed is a sodium ion secondary battery which is provided with a positive electrode, a negative electrode having a negative electrode active material, and a nonaqueous electrolyte solution containing a nonaqueous solvent. The nonaqueous solvent is substantially composed of a saturated cyclic carbonate (excluding the use of ethylene carbonate by itself), or a mixed solvent of a saturated cyclic carbonate and a chain carbonate, and a hard carbon is used as the negative electrode active material.
    Type: Grant
    Filed: March 25, 2010
    Date of Patent: January 31, 2017
    Assignee: TOKYO UNIVERSITY OF SCIENCE EDUCATIONAL FOUNDATION ADMINISTRATIVE ORGANIZATION
    Inventors: Shinichi Komaba, Tomoaki Ozeki, Wataru Murata, Toru Ishikawa
  • Patent number: 9543501
    Abstract: Provided is a piezoelectric material excellent in piezoelectricity. The piezoelectric material includes a perovskite-type complex oxide represented by the following General Formula (1). A(ZnxTi(1-x))yM(1-y)O3??(1) wherein A represents at least one kind of element containing at least a Bi element and selected from a trivalent metal element; M represents at least one kind of element of Fe, Al, Sc, Mn, Y, Ga, and Yb; x represents a numerical value satisfying 0.4?x?0.6; and y represents a numerical value satisfying 0.1?y?0.9.
    Type: Grant
    Filed: August 5, 2013
    Date of Patent: January 10, 2017
    Assignees: Canon Kabushiki Kaisha, Kyoto University, Tokyo Institute of Technology, Sophia University, University of Yamanashi, National Institute of Advanced Industrial Science and Technology, Tokyo University of Science Educational Foundation Administrative Organization
    Inventors: Makoto Kubota, Kaoru Miura, Toshihiro Ifuku, Jumpei Hayashi, Masaki Azuma, Olga Alexandrovna Smirnova, Hiroshi Funakubo, Hiroshi Uchida, Nobuhiro Kumada, Satoshi Wada, Takashi Iijima, Soichiro Okamura
  • Patent number: 9466855
    Abstract: An additive for a sodium ion secondary battery of the present invention includes a compound of at least one of a saturated cyclic carbonate having a fluoro group and a chain carbonate having a fluoro group. A sodium ion secondary battery (1) of the present invention includes: a non-aqueous electrolytic solution including the additive for a sodium ion secondary battery and a non-aqueous solvent containing a saturated cyclic carbonate or a non-aqueous solvent containing a saturated cyclic carbonate and a chain carbonate; a positive electrode (11); and a negative electrode (12) that includes a coating formed in a surface of the negative electrode, the coating containing a composite material having carbon, oxygen, fluorine and sodium in the surface and includes a negative-electrode active material containing a hard carbon.
    Type: Grant
    Filed: March 8, 2012
    Date of Patent: October 11, 2016
    Assignees: NISSAN MOTOR CO., LTD., TOKYO UNIVERSITY OF SCIENCE EDUCATIONAL FOUNDATION ADMINISTRATIVE ORGANIZATION
    Inventors: Atsushi Ito, Yasuhiko Ohsawa, Shinichi Komaba
  • Patent number: 9315442
    Abstract: A method that manufacturers an optically active carboxylic acid ester at high yield and high enantioselectivity is provided. An optically active carboxylic acid ester is manufactured at high yield and high enantioselectivity by reacting a racemic carboxylic acid and a specific alcohol or phenol derivatives in a polar solvent having a dipole moment of 3.0 or higher in the presence of an acid anhydride and an asymmetric catalyst, esterifying one enantiomer of the racemic carboxylic acid at high selectivity, and increasing the amount of esterified carboxylic acid by racemizing the optically active carboxylic acid which is the other enantiomer not used in esterification.
    Type: Grant
    Filed: June 7, 2012
    Date of Patent: April 19, 2016
    Assignee: TOKYO UNIVERSITY OF SCIENCE EDUCATIONAL FOUNDATION ADMINISTRATIVE ORGANIZATION
    Inventors: Isamu Shiina, Kenya Nakata, Keisuke Ono
  • Patent number: 9276262
    Abstract: There are provided a battery electrode wherein an active material layer is formed on a collector surface, and the layer contains an active material and a block copolymer having a vinyl alcohol polymer block; and a lithium ion secondary battery having a laminate structure in which a pair of electrodes having an active material layer are disposed in such a manner that the active material layers face each other via a separator, and an electrolyte composition containing a lithium-containing electrolyte salt fills the gaps between the pair of electrodes and the separator, wherein at least one of the pair of electrodes is the above battery electrode. Thus, there can be provided a lithium ion secondary battery which can be easily produced and be less polarized, exhibiting excellent charge/discharge properties and cycle characteristics.
    Type: Grant
    Filed: March 21, 2012
    Date of Patent: March 1, 2016
    Assignees: TOKYO UNIVERSITY OF SCIENCE EDUCATIONAL FOUNDATION ADMINISTRATIVE ORGANIZATION, KURARAY CO., LTD.
    Inventors: Shinichi Komaba, Naoaki Yabuuchi, Kyomi Tajima, Junji Fujioka, Naoki Fujiwara
  • Patent number: 9203088
    Abstract: Provided are: a composite metal oxide with which it is possible to improve the performance of a sodium secondary battery; a process for producing the composite metal oxide; a positive active material which comprises the composite metal oxide; a positive electrode produced using the positive active material; and a sodium secondary battery including the positive electrode. The composite metal oxide is represented by the following formula: NaxFeyMn1-yO2. The composite metal oxide is constituted of an oxide having a P2 structure and a lamellar oxide, with some extent of stacking faults, having an octahedral structure and/or a triangular-prism structure. The lamellar oxide preferably is an oxide having an O3 structure.
    Type: Grant
    Filed: October 28, 2011
    Date of Patent: December 1, 2015
    Assignee: TOKYO UNIVERSITY OF SCIENCE EDUCATIONAL FOUNDATION ADMINISTRATIVE ORGANIZATION
    Inventors: Naoaki Yabuuchi, Shinichi Komaba, Junichi Iwatate
  • Publication number: 20150302996
    Abstract: A photoelectrode for dye-sensitized solar cells of the present invention includes a light-transmitting substrate including a transparent electroconductive layer formed on a light-transmitting base; an adhesion layer formed on the transparent electroconductive layer, the adhesion layer being configured of an electroconductive portion formed of electroconductive particles and a coating layer formed by applying metal alkoxide thereon to cover the electroconductive particles; and a photoelectric conversion layer formed on the adhesion layer by using a photoelectric conversion material in which a sensitizing dye is supported on a functional semiconductor.
    Type: Application
    Filed: April 22, 2015
    Publication date: October 22, 2015
    Applicants: TOKYO UNIVERSITY OF SCIENCE EDUCATIONAL FOUNDATION ADMINISTRATIVE ORGANIZATION, TOPPAN PRINTING CO., LTD.
    Inventors: Naoya WATANABE, Tomohiro KUDO, Hironobu OZAWA, Hironori ARAKAWA, Naoyuki SHIBAYAMA
  • Patent number: 9156088
    Abstract: Disclosed are: Au—Ag core-shell nanorod particles wherein a cationic surfactant such as CTAB is substituted by an other compound; and a method for producing the Au—Ag core-shell nanorod particles. Specifically disclosed are Au—Ag core-shell nanorod particles which are characterized in that each of the nanorod particles comprises a gold nanorod particle that serves as the core, a shell layer that covers the surface of the gold nanorod particle and is formed from silver, and a copolymer that adsorbs on the surface of the shell layer. The Au—Ag core-shell nanorod particles are also characterized in that the copolymer is a block copolymer or graft copolymer that is obtained by polymerizing at least a polymerizable monomer (A) that has a group represented by general formula (I). In the formula, Ra represents an alkylene group having 2-7 carbon atoms.
    Type: Grant
    Filed: December 10, 2010
    Date of Patent: October 13, 2015
    Assignee: Tokyo University of Science Educational Foundation Administrative Organization
    Inventors: Hidenori Otsuka, Toshihiko Kurosawa, Yoshihiro Saito, Koichi Kutsuzawa
  • Publication number: 20150207056
    Abstract: Disclosed is an aluminum-magnesium-silicon composite material that contains an alloy comprising Al, Mg, and Si and can be used favorably as a material for a thermoelectric conversion module, and that has excellent thermoelectric conversion properties. The aluminum-magnesium-silicon composite material contains an alloy comprising Al, Mg and Si, and has an electrical conductivity (?) of 1000-3000 S/cm at 300 K. This aluminum-magnesium-silicon composite material is favorable in the production of a thermoelectric exchange element as a result of having excellent thermoelectric conversion properties.
    Type: Application
    Filed: March 27, 2015
    Publication date: July 23, 2015
    Applicant: Tokyo University of Science Educational Foundation Administrative Organization
    Inventors: Tsutomu IIDA, Naoki FUKUSHIMA, Tatsuya SAKAMOTO, Yohiko MITO, Hirokuni NANBA, Yutaka TAGUCHI, Masayasu AKASAKA, Mamoru TACHIKAWA, Takakazu HINO
  • Patent number: 9087962
    Abstract: To improve the mass productivity of thermoelectric conversion modules. A thermoelectric conversion module 1 is equipped with a pair of substrates 11 and 12, a plurality of thermoelectric conversion elements 2, each having one end portion electrically connected to a first electrode 3 which is arranged on the substrate 11 and the other end portion electrically connected to a second electrode 4 which is arranged on the substrate 12, and a connection section 5 which electrically connects the first electrode 3 electrically connected to the thermoelectric conversion element 2 to the second electrode 4 electrically connected to an adjacent one of the thermoelectric conversion elements 2. The connection section 5 is separate from at least one of the first electrode 3 and the second electrode 4.
    Type: Grant
    Filed: October 25, 2012
    Date of Patent: July 21, 2015
    Assignees: Nippon Thermostat Co., Ltd., Tokyo University Of Science Educational Foundation Administrative Organization
    Inventors: Tadao Nakajima, Takashi Nemoto, Junichi Sato
  • Publication number: 20150187512
    Abstract: A counter electrode for a dye sensitized solar cell (20 ) includes a conductive layer (21 ); and a contact preventing layer (23 ) which is formed of an insulating substance, and is formed on one surface of the conductive layer (21 ).
    Type: Application
    Filed: March 16, 2015
    Publication date: July 2, 2015
    Applicants: TOKYO UNIVERSITY OF SCIENCE EDUCATIONAL FOUNDATION ADMINISTRATIVE ORGANIZATION, TOPPAN PRINTING CO., LTD.
    Inventors: Naoya WATANABE, Tomohiro KUDO, Syougo MUROYA, Kouya NOZAWA, Hironobu OZAWA, Hironori ARAKAWA, Naoyuki SHIBAYAMA
  • Patent number: 9028723
    Abstract: Copper(II) acetate, zinc(II) acetate, and tin(IV) acetate are weighed so that the total amount of metal ions is 2.0×10?4 mol and the molar ratio of ions is Cu:Zn:Sn=2:1:1, and 2.0 cm3 of oleylamine is added to prepare a mixed solution. Apart from this, 1.0 cm3 of oleylamine is added to 2.0×10?4 mol of sulfur powder to prepare a mixed solution. These mixed solutions are separately heated at 60° C. and mixed at room temperature. The pressure in a test tube is reduced, followed by nitrogen filling. The test tube is heated at 240° C. for 30 minutes and then allowed to stand until room temperature. The resultant product is separated into a supernatant and precipitates by centrifugal separation. The separated supernatant is filtered, methanol is added to produce precipitates. The precipitates are dissolved by adding chloroform to prepare a semiconductor nanoparticle solution.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: May 12, 2015
    Assignees: National University Corporation Nagoya University, Osaka University, Tokyo University of Science Educational Foundation Administrative Organization
    Inventors: Tsukasa Torimoto, Ken-ichi Okazaki, Tatsuya Kameyama, Takaaki Osaki, Susumu Kuwabata, Akihiko Kudo
  • Patent number: 9018115
    Abstract: Provided is a light-emitting glass which is applicable to, e.g., white illuminators including a light-emitting diode as a light source, and which emits light of a warm white color when irradiated with near ultraviolet light and combines long-term weatherability with high heat resistance; a light-emitting device containing same and a process for producing same. The light-emitting glass includes, as the base glass, borosilicate or silicate glass having a separated-phase structure, whereby the base glass is efficiently doped with, for example, transition metal ion clusters which emit light of a warm white color upon irradiation with near ultraviolet light. With this glass, it is possible to attain increases in excitation wavelength and emission wavelength. The glass thus emits, based on a multiple scattering effect, high-intensity light of a warm white color upon irradiation with near ultraviolet light.
    Type: Grant
    Filed: October 22, 2010
    Date of Patent: April 28, 2015
    Assignee: Tokyo University of Science Educational Foundation Administrative Organization
    Inventors: Atsuo Yasumori, Tetsuo Kishi, Naoko Matsui
  • Publication number: 20140251427
    Abstract: A photoelectrode for a dye-sensitized solar cell includes, a sensitizer supported in a functional semiconductor layer of a photoelectrode structure provided with the functional semiconductor layer on a transparent conductive layer of a translucent substrate made by forming the transparent conductive layer on a plastic translucent support, in which the functional semiconductor layer includes a roll-pressed layer which is being in contact with the transparent conductive layer and roll-pressing traces extending in parallel with a roll-pressing treatment direction on a surface of the roll-pressed layer, and a surface roughness Ra in a first direction which is in parallel with the roll-pressing treatment direction is smaller than a surface roughness Ra in a second direction which is orthogonal to the first direction on a surface of the functional semiconductor layer.
    Type: Application
    Filed: May 19, 2014
    Publication date: September 11, 2014
    Applicants: TOKYO UNIVERSITY OF SCIENCE EDUCATIONAL FOUNDATION ADMINISTRATIVE ORGANIZATION, TOPPAN PRINTING CO., LTD.
    Inventors: Naoya WATANABE, Tomohiro KUDOU, Hironobu OZAWA, Hironori ARAKAWA, Naoyuki SHIBAYAMA
  • Publication number: 20140154490
    Abstract: The present invention aims to provide a non-combustible film having excellent flexibility, excellent moisture resistance, and high mechanical strength. The present invention also aims to provide a dispersion liquid for non-combustible films which is used in production of the non-combustible film, a method for producing a non-combustible film using the above dispersion, and a solar cell back sheet and a flexible board each of which is formed from the above non-combustible film. The present invention further aims to provide a solar cell including the solar cell back sheet. The non-combustible film of the present invention includes a water-insoluble inorganic compound and a heat-resistant synthetic resin, the water-insoluble inorganic compound constituting from 30% by weight to 90% by weight inclusive of the total weight of the non-combustible film, the film exhibiting a flammability of VTM-0 in the UL-94 VTM test.
    Type: Application
    Filed: June 7, 2012
    Publication date: June 5, 2014
    Applicants: SUMITOMO SEIKA CHEMICALS CO., LTD., Tokyo University of Science Educational Foundation Administrative Organization, National Institute of Advanced Industrial Science and Technology
    Inventors: Seiji Bando, Noriyuki Hayashizaka, Yuki Umeda, Kazunori Kawasaki, Takeo Ebina, Hiromichi Hayashi, Manabu Yoshida, Takashi Yamashita
  • Patent number: 8658735
    Abstract: The graft copolymer comprises a polymerizable monomer (A1) represented by general formula (III) and a polymerizable monomer (B1) containing a pyridyl group, and a ligand can be bonded via the functional group at the terminus of R3a. In the formula, R1a represents a polymerizable group, R2a represents an alkylene group having a carbon number of 2-5, R3a represents an organic group having at a terminus a functional group selected from among an azide group, a phenyl azide group, a carboxyl group, a primary to quaternary amino group, an acetal group, an aldehyde group, a thiol group, a disulfide group, an active ester group, a trialkoxysilyl group, and a polymerizable group, and n represents any integer from 5 to 20,000.
    Type: Grant
    Filed: August 28, 2009
    Date of Patent: February 25, 2014
    Assignee: Tokyo University of Science Educational Foundation Administrative Organization
    Inventors: Hidenori Otsuka, Masayuki Fukaishi, Takashi Ishiduka
  • Publication number: 20140045054
    Abstract: There are provided a battery electrode wherein an active material layer is formed on a collector surface, and the layer contains an active material and a block copolymer having a vinyl alcohol polymer block; and a lithium ion secondary battery having a laminate structure in which a pair of electrodes having an active material layer are disposed in such a manner that the active material layers face each other via a separator, and an electrolyte composition containing a lithium-containing electrolyte salt fills the gaps between the pair of electrodes and the separator, wherein at least one of the pair of electrodes is the above battery electrode. Thus, there can be provided a lithium ion secondary battery which can be easily produced and be less polarized, exhibiting excellent charge/discharge properties and cycle characteristics.
    Type: Application
    Filed: March 21, 2012
    Publication date: February 13, 2014
    Applicants: KURARAY CO., LTD., TOKYO UNIVERSITY OF SCIENCE EDUCATIONAL FOUNDATION ADMINISTRATIVE ORGANIZATION
    Inventors: Shinichi Komaba, Naoaki Yabuuchi, Kyomi Tajima, Junji Fujioka, Naoki Fujiwara