Patents Assigned to National University Corporation Gunma University
  • Publication number: 20150357639
    Abstract: The main object of the present invention is to provide an active material which is used for an electrochemical device utilizing Li ion conduction, and capable of improving cycle stability. The present invention attains the object by providing an active material used for an electrochemical device utilizing Li ion conduction, comprising an active substance capable of absorbing and releasing a Li ion, and an Na ion conductor disposed on the surface of the active substance and having a polyanionic structure.
    Type: Application
    Filed: December 25, 2013
    Publication date: December 10, 2015
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, NATIONAL UNIVERSITY CORPORATION GUNMA UNIVERSITY
    Inventors: Hideyuki MORIMOTO, Shin-ichi TOBISHIMA, Yohei SHINDO
  • Publication number: 20150334828
    Abstract: There is provided a wiring substrate including an electrode including Cu or a Cu alloy, a plating film having a film including at least Pd, formed on the electrode, and a solder which is bonded onto the plating film by heating, has a melting point of lower than 140° C., and includes Pd dissolved therein, a Pd concentrated layer being absent between the solder and the electrode.
    Type: Application
    Filed: July 24, 2015
    Publication date: November 19, 2015
    Applicants: TOPPAN PRINTING CO., LTD, NATIONAL UNIVERSITY CORPORATION GUNMA UNIVERSITY
    Inventors: Tetsuyuki TSUCHIDA, Toshikazu OKUBO, lkuo SHOHJI, Akihiro HIRATA
  • Patent number: 9133315
    Abstract: Disclosed is a method for producing a ultra high molecular weight polyethylene film, which comprises: a step of forming a film using a ultra high molecular weight polyethylene material; a step of biaxially drawing the film obtained in the step in the x-axis direction and in the y-axis direction at a temperature not less than the melting point of the ultra high molecular weight polyethylene material; and the step of shrinking the film along at least one of the x-axis direction and y-axis direction. By this method, a ultra high molecular weight polyethylene film having high tensile strength at break, high tear strength and excellent uniformity can be efficiently produced at low cost.
    Type: Grant
    Filed: March 4, 2010
    Date of Patent: September 15, 2015
    Assignee: National University Corporation Gunma University
    Inventors: Hiroki Uehara, Takeshi Yamanobe, Takuya Tamura
  • Patent number: 9050583
    Abstract: Provided are a carbon catalyst for hydrogen production having an excellent catalytic activity, a production method therefor, and a method of producing hydrogen using the catalyst. The carbon catalyst for hydrogen production is a carbon catalyst, which is obtained by carbonizing a raw material including an organic substance and a transition metal, the catalyst being used for hydrogen production by thermal decomposition of a hydrocarbon compound and/or an oxygen-containing organic compound. Further, the carbon catalyst for hydrogen production may be obtained by loading an alkaline earth metal on a carbonized material produced by the carbonization.
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: June 9, 2015
    Assignees: NATIONAL UNIVERSITY CORPORATION GUNMA UNIVERSITY, NISSHINBO HOLDINGS INC.
    Inventors: Jun-ichi Ozaki, Rieko Kobayashi, Chihiro Fujii
  • Publication number: 20150152243
    Abstract: TASK It is an object of the present invention to provide a hydrogel having excellent mechanical properties and capable of being produced simply by using and mixing an industrially easily obtainable polymer having high versatility and clay particles, and to provide a method of producing the hydrogel. MEANS OF SOLVING THE PROBLEM A hydrogel-forming composition is characterized by containing a polyelectrolyte (A), clay particles (B), and a dispersant (C) for the clay particles.
    Type: Application
    Filed: January 8, 2015
    Publication date: June 4, 2015
    Applicant: National University Corporation Gunma University
    Inventors: Hiroyuki TAKENO, Wataru NAKAMURA
  • Patent number: 9045601
    Abstract: The present invention provides a method for producing stereo complex crystals of polylactic acid, with which a polylactic acid having excellent heat resistance and containing stereo complex crystals at a high ratio can be efficiently produced, the method including: a step of dissolving in a solvent a block copolymer, which includes polylactic acid containing an L-lactic acid unit or poly lactic acid containing a D-lactic acid unit together with at least one kind of an organic polymer having a different structure from that of polylactic acid, and a polylactic acid homopolymer containing a D-lactic acid unit or a polylactic acid homopolymer containing an L-lactic acid unit, the lactic acid unit being an optical isomer that is not contained in the block copolymer, to prepare a polymer mixture solution; and a step of removing the solvent from the polymer mixture solution.
    Type: Grant
    Filed: September 7, 2010
    Date of Patent: June 2, 2015
    Assignee: National University Corporation Gunma University
    Inventors: Hiroki Uehara, Takeshi Yamanobe, Yusuke Karaki
  • Patent number: 9040452
    Abstract: Provided is a method of producing a carbon catalyst having an improved activity. The method of producing carbon catalyst including a carbonization step of carbonizing raw materials containing an organic compound as a carbon source, a metal, and an electrically conductive carbon material to produce a carbonized material; a metal impregnation step of impregnating the carbonized material with a metal; and a heat treatment step of subjecting the carbonized material impregnated with the metal to a heat treatment.
    Type: Grant
    Filed: September 11, 2013
    Date of Patent: May 26, 2015
    Assignees: NATIONAL UNIVERSITY CORPORATION GUNMA UNIVERSITY, NISSHINBO HOLDINGS INC.
    Inventors: Takeaki Kishimoto, Mikiko Imada, Jun-ichi Ozaki
  • Patent number: 8999874
    Abstract: Provided is a carbon catalyst having an improved catalytic activity, a production method therefor, and an electrode and a battery which use the carbon catalyst. The carbon catalyst is obtained by carbonizing a raw material including an organic substance containing a nitrogen atom and metals, and includes iron and/or cobalt, and copper as the metals. Further, the carbon catalyst has a crystallinity of 41.0% or less, which is determined by X-ray diffractometry, a nitrogen atom-to-carbon atom ratio of 0.7 or more, which is determined by X-ray photoelectronic spectrometry, and an oxygen reduction-starting potential of 0.774 V (vs. NHE) or more.
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: April 7, 2015
    Assignees: National University Corporation Gunma University, Nisshinbo Holdings Inc.
    Inventors: Takeaki Kishimoto, Mayumi Mizushiri, Jun-ichi Ozaki, Yusuke Sudo, Naokatsu Kannari
  • Patent number: 8993164
    Abstract: A support for carrying a catalyst is obtained by carbonizing raw materials containing a nitrogen-containing organic substance and a metal. The support for carrying a catalyst may have a peak at a diffraction angle of around 26° in an X-ray diffraction pattern, the peak including 20 to 45% of a graphite-like structure component and 55 to 80% of an amorphous component. In addition, the support for carrying a catalyst may have an intensity ratio of a band at 1,360 cm?1 to a band at 1,580 cm?1 (I1,360/I1,580) in a Raman spectrum of 0.3 or more and 1.0 or less. In addition, the support for carrying a catalyst may be obtained by carbonizing the raw materials to obtain a carbonized material, subjecting the carbonized material to a metal removal treatment, and subjecting the resultant to a heat treatment.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: March 31, 2015
    Assignees: Nisshinbo Holdings Inc., National University Corporation Gunma University
    Inventors: Erina Matsuzaka, Takeaki Kishimoto, Jun-ichi Ozaki
  • Patent number: 8986883
    Abstract: A negative electrode for a lithium secondary battery, in which ?-Fe2O3 that is low in cost, has little environmental impact and has high theoretical capacity is used as an active material, maintains high adhesiveness between a current collector and an electrode layer, and can simultaneously achieve both of an improvement in the cycle characteristics and high capacity. In a negative electrode for a lithium secondary battery, which is configured of a current collector, and an electrode layer that is formed on the current collector and contains at least a negative electrode active material, a conductive assistant and a binder component, the negative electrode active material is composed of ?-Fe2O3 particles that generate a conversion electrode reaction, the binder component is a mixture of polyamide acid and partially imidized polyamide acid. The electrode layer is configured so that a concentration of the binder component decreases as distanced from the current collector.
    Type: Grant
    Filed: November 10, 2010
    Date of Patent: March 24, 2015
    Assignee: National University Corporation Gunma University
    Inventors: Hideyuki Morimoto, Shin-ichi Tobishima
  • Patent number: 8962742
    Abstract: A hydrogel having mechanical properties and capable of being produced simply by using and mixing an industrially obtainable polymer having high versatility and clay particles, and to provide a method of producing the hydrogel. A hydrogel-forming composition is characterized by containing a polyelectrolyte, clay particles, and a dispersant for the clay particles.
    Type: Grant
    Filed: May 15, 2013
    Date of Patent: February 24, 2015
    Assignee: National University Corporation Gunma University
    Inventors: Hiroyuki Takeno, Wataru Nakamura
  • Patent number: 8957145
    Abstract: A hydrogel having excellent mechanical properties and capable of being produced simply by using and mixing an industrially easily obtainable polymer having high versatility and clay particles, and to provide a method of producing the hydrogel. A hydrogel-forming composition is characterized by containing a polyelectrolyte, clay particles, and a dispersant for the clay particles.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: February 17, 2015
    Assignee: National University Corporation Gunma University
    Inventors: Hiroyuki Takeno, Wataru Nakamura
  • Patent number: 8951456
    Abstract: A method for producing an ultra-high-molecular-weight polyethylene porous membrane, including: a step of molding a film using an ultra-high-molecular-weight polyethylene raw material; a step of biaxially stretching the obtained film in X-axis and Y-axis directions at a temperature of from a melting point of the film to 180° C.; and a pore-forming step of stretching the stretched film along at least one axis of the X-axis and Y-axis at from 142° C. to 170° C. Alternatively, a method for producing an ultra-high-molecular-weight polyethylene film, including: a step of molding a film by two steps of press-molding and roll-molding using an ultra-high-molecular-weight polyethylene raw material; and a step of biaxially stretching the film obtained in the above step, in X-axis and Y-axis directions at a temperature of from a melting point of the film to 180° C.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: February 10, 2015
    Assignee: National University Corporation Gunma University
    Inventors: Hiroki Uehara, Takeshi Yamanobe
  • Publication number: 20140332259
    Abstract: A wiring substrate includes an electrode including Cu or a Cu alloy, and a plated film including an electroless nickel-plated layer formed on the electrode and an electroless gold-plated layer formed on the electroless nickel-plated layer. The electroless nickel-plated layer is formed by co-precipitation of Ni, P, Bi, and S, the electroless nickel-plated layer includes a content of P of 5% by mass or more and less than 10% by mass, a content of Bi of 1 ppm by mass to 1,000 ppm by mass, and a content of S of 1 ppm by mass to 2,000 ppm by mass, and a mass ratio of the content of S to the content of Bi (S/Bi) is more than 1.0.
    Type: Application
    Filed: July 28, 2014
    Publication date: November 13, 2014
    Applicants: TOPPAN PRINTING CO., LTD., NATIONAL UNIVERSITY CORPORATION GUNMA UNIVERSITY
    Inventors: Tetsuyuki TSUCHIDA, Toshikazu OKUBO, Ikuo SHOHJI, Takahiro KANO
  • Patent number: 8853373
    Abstract: Provided is a nucleic acid substrate which has nucleic acid substrate characteristics equivalent to those of dATP, has a low substrate specificity for luciferase, exerts no negative effect on enzymatic reactions such as a complementary-strand synthesis, and therefore is particularly suitable for the pyrosequencing method. As a nucleic acid substrate complementary to nucleotide T, a 7-substituted deoxyribonucleotide triphosphate whose 7-position of a purine group is modified by a substituent is used as a substitute for a nucleotide ?-thiotriphosphate analog.
    Type: Grant
    Filed: August 10, 2010
    Date of Patent: October 7, 2014
    Assignees: Hitachi, Ltd., National University Corporation Gunma University
    Inventors: Masayasu Kuwahara, Tomoharu Kajiyama, Hideki Kambara
  • Publication number: 20140296357
    Abstract: Provided are a support for supporting a metal, a metal-supported catalyst, a methanation reaction apparatus, and a method relating thereto that realize effective methanation of carbon monoxide. The support for supporting a metal includes a carbonized material obtained by carbonizing raw materials containing an organic substance and a metal, in which the support is used for supporting a metal that exhibits a catalytic activity for a methanation reaction of carbon monoxide. The metal-supported catalyst includes: a support formed of a carbonized material obtained by carbonizing raw materials containing an organic substance and a metal; and a metal that exhibits a catalytic activity for a methanation reaction of carbon monoxide, the metal being supported on the support.
    Type: Application
    Filed: November 1, 2012
    Publication date: October 2, 2014
    Applicant: National University Corporation gunma University
    Inventors: Jun-ichi Ozaki, Hiroki Takahashi, Takuya Takahashi, Naokatsu Kannari, Rieko Kobayashi, Naoto Saito
  • Patent number: 8820610
    Abstract: The present invention provides a qualitatively-stable functionally gradient material precursor having gradient material composition, as well as a production method of the functionally gradient material precursor, at low cost. Further, the present invention provides a functionally gradient material having gradient material composition, or having both gradient material composition and gradient porosity, so as to achieve high-functionality; as well as a production method of the functionally gradient material. A functionally gradient material precursor is formed by the steps of: forming plural kinds of metal foam precursors, each obtained by performing heat treatment on a metal member so that a plurality of pores are generated within the metal member, by making the material composition of the metal member different; and friction stir welding the plural kinds of metal foam precursors. Further, a functionally gradient material is formed by performing heat treatment on the functionally gradient material.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: September 2, 2014
    Assignees: National University Corporation Gunma University, Shibaura Institute of Technology
    Inventors: Yoshihiko Hangai, Takao Utsunomiya
  • Publication number: 20140178464
    Abstract: The invention provides a cancer chemotherapeutic agent which has fewer side effects and excellent efficacy. The cancer chemotherapeutic agent of the invention includes a cholestanol derivative represented by formula (1): (wherein G represents GlcNAc-Gal-, GlcNAc-Gal-Glc-, Fuc-Gal-, Gal-Glc-, Gal-, or GlcNAc-) or a cyclodextrin inclusion compound thereof, and an anti-cancer agent.
    Type: Application
    Filed: February 28, 2014
    Publication date: June 26, 2014
    Applicants: OTSUKA PHARMACEUTICAL CO., LTD., NATIONAL UNIVERSITY CORPORATION GUNMA UNIVERSITY
    Inventors: Shin YAZAWA, Toyo NISHIMURA, Takayuki ASAO
  • Patent number: 8742360
    Abstract: Plural camera heads are each placed in a position capable of detection of radiation emitted from a radiation source. Compton cones obtained from the detection data output from each of the plural camera heads are projected onto three-dimensional space and an image based on the radiation source is reconstructed. In addition, projected images from projecting Compton cones obtained from the detection data output from each camera head onto two-dimensional planes are also employed for determining a three-dimensional space excluding regions where the radiation source is not present. Reconstruction of images based on the radiation source is then performed within the determined three-dimensional space.
    Type: Grant
    Filed: August 21, 2009
    Date of Patent: June 3, 2014
    Assignees: National University Corporation Gunma University, Japan Atomic Energy
    Inventors: Mitsutaka Yamaguchi, Hirofumi Shimada, Takashi Nakano, Naoki Kawachi, Kazuo Arakawa, Tadayuki Takahashi, Shin Watanabe, Shinichiro Takeda, Hirokazu Odaka, Yoshikatsu Kuroda, Masahiro Kato, Kei Genba
  • Patent number: 8716679
    Abstract: The beam irradiation apparatus is featured by including a transport pipe which is vacuum-evacuated to be used as a transport channel of a beam taken out from an accelerator, a quadrupole magnet which modulates the beam diameter of the beam so that the beam is incident on an irradiation target existing in the atmosphere while maintaining the focusing angle of the beam, and one or more longitudinally movable range shifters which are provided to be capable of changing the distance to the irradiation target of the beam, and which modulate the beam range by reducing the energy of the beam by allowing the beam to pass through the movable range shifter, and is featured in that the beam is irradiated onto the irradiation target by modulating the beam diameter and the beam range.
    Type: Grant
    Filed: August 5, 2010
    Date of Patent: May 6, 2014
    Assignee: National University Corporation Gunma University
    Inventors: Kota Torikai, Satoru Yamada