Patents Assigned to Japan Science and Technology Agency
  • Patent number: 10355676
    Abstract: An electronic circuit includes: a bistable circuit connected between first and second power sources respectively supplied with first and second power-supply voltages and including first and second inverters connected in a loop being inverter circuits switching between first and second modes; a control circuit outputting first and second signals respectively setting the inverter circuits in the first and second modes to the inverter circuits; and a power-supply circuit supplying a first voltage as a power-supply voltage while the inverter circuits are in the first mode, and supplying a second voltage higher than the first voltage as the power-supply voltage while the inverter circuits are in the second mode, wherein the first mode exhibits hysteresis in a transfer characteristic curve and the second mode exhibits no hysteresis in a transfer characteristic curve, and/or the first mode has a steeper transfer characteristic curve than the second mode.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: July 16, 2019
    Assignee: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Satoshi Sugahara, Shuichiro Yamamoto
  • Patent number: 10336783
    Abstract: A novel catalyst capable of selectively catalyzing conversion from glucose to fructose in water or in an aqueous solution is provided. The catalyst is a solid catalyst for a hydride isomerization reaction from glucose to fructose performed in water or in an aqueous solution, comprising a group 13 element oxide whose surface has been subjected to a phosphoric acid treatment.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: July 2, 2019
    Assignee: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Michikazu Hara, Kiyotaka Nakajima, Daiki Takeda
  • Patent number: 10338078
    Abstract: The present invention provides an apparatus having a sample separation unit, a Raman spectroscopy unit, and a mass spectrometry unit. The present invention further provides a method for specifying a biomolecule and a method for identifying the binding site of the biomolecule and the low-molecular-weight compound, comprising a combination of Raman spectroscopy and mass spectrometry. The present invention further provides a surface-enhanced Raman spectroscopy method with improved sensitivity.
    Type: Grant
    Filed: August 13, 2013
    Date of Patent: July 2, 2019
    Assignee: Japan Science and Technology Agency
    Inventors: Mikiko Sodeoka, Jun Ando, Miwako Asanuma, Kosuke Dodo, Katsumasa Fujita
  • Publication number: 20190194717
    Abstract: Provided is a method for detecting pathogenic microorganisms in a biological sample, which is a technique that can be used to perform high-sensitivity detection of pathogenic microorganisms, such as influenza virus, etc.
    Type: Application
    Filed: September 4, 2017
    Publication date: June 27, 2019
    Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Hiroyuki NOJI, Kazuhito TABATA
  • Patent number: 10322092
    Abstract: Provided is a monodisperse agglomerate of a substance-containing vesicle filled with a substance at a concentration higher than conventionally possible. A mixed solution, in which a target substance is included in an aqueous medium, is mixed with a monodisperse agglomerate of a crosslinked vesicle comprising a prescribed polymer which includes a first polymer, i.e. a block copolymer having uncharged hydrophilic segments and first charged segments, and a second polymer having second charged segments carrying a charge opposite to that of the first charged segments, and in which the first polymer and/or the second polymer are/is crosslinked. As a result, the crosslinked vesicle is made to contain the target substance.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: June 18, 2019
    Assignee: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Kazunori Kataoka, Akihiro Kishimura, Yasutaka Anraku, Akinori Goto
  • Patent number: 10324142
    Abstract: A diamond crystal according to the present invention has an NV region containing a complex (NV center) of nitrogen substituted with a carbon atom and a vacancy located adjacent to the nitrogen, on a surface or in the vicinity of the surface, wherein the NV region has a donor concentration equal to or higher than the concentration of the NV centers, or a crystal of the NV region is a {111} face or a face having an off-angle that is ±10 degrees or less against the {111} face, and a principal axis of the NV center is a <111> axis that is perpendicular to the {111} face. Such a diamond crystal enables almost 100% of the NV center to be a state (NV?) of having a negative electric charge, and spin states of the NV? centers to be aligned in one direction.
    Type: Grant
    Filed: January 19, 2015
    Date of Patent: June 18, 2019
    Assignees: JAPAN SCIENCE AND TECHNOLOGY AGENCY, NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Mutsuko Hatano, Takayuki Iwasaki, Norikazu Mizuochi, Toshiharu Makino, Hiromitsu Kato, Satoshi Yamasaki
  • Patent number: 10322940
    Abstract: An ammonia synthesis catalyst having high activity is obtained by having a two-dimensional electride compound having a lamellar crystal structure such as Ca2N support a transition metal. However, since the two-dimensional electride compound is unstable, the stability of the catalyst is low. In addition, in cases where a two-dimensional electride compound is used as a catalyst support, it is difficult to shape the catalyst depending on reactions since the two-dimensional electride compound has poor processability. A composite which includes a transition metal, a support and a metal amide compound, wherein the support is a metal oxide or a carbonaceous support; and the metal amide compound is a metal amide compound represented by general formula (1). M(NH2)x??(1) (In general formula (1), M represents at least one metal atom selected from the group consisting of Li, Na, K, Be, Mg, Ca, Sr, Ba and Eu; and x represents the valence of M.).
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: June 18, 2019
    Assignees: JAPAN SCIENCE AND TECHNOLOGY AGENCY, TOKYO INSTITUTE OF TECHNOLOGY
    Inventors: Hideo Hosono, Michikazu Hara, Masaaki Kitano, Toshiharu Yokoyama, Yasunori Inoue
  • Publication number: 20190172605
    Abstract: Disclosed herein is an amorphous C12A7 electride thin film which has an electron density of greater than or equal to 2.0×1018 cm?3 and less than or equal to 2.3×1021 cm?3, and exhibits a light absorption at a photon energy position of 4.6 eV. Also disclosed herein is an amorphous thin film which is fabricated using a target made of a crystalline C12A7 electride, and containing an electride of an amorphous solid material includig calcium, aluminum, and oxygen, in which an Al/Ca molar ratio of the thin film is 0.5 to 4.7.
    Type: Application
    Filed: February 7, 2019
    Publication date: June 6, 2019
    Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Hideo HOSONO, Yoshitake TODA, Katsuro HAYASHI, Setsuro ITO, Satoru WATANABE, Naomichi MIYAKAWA, Toshinari WATANABE, Kazuhiro ITO
  • Publication number: 20190169420
    Abstract: The problem addressed by the present invention is to provide a block copolymer that can be used in a neutral solvent atmosphere and can produce a solid polymer membrane including nanoparticles. The problem is solved by a block copolymer represented by formula (1) below. wherein in the formula, R1 represents a C1-20 linear, branched, or cyclic alkyl group, C6-20 aryl group, or C7-20 aralkyl group; R2 represents a group having a functional group having an acid dissociation constant pKa of from 0.
    Type: Application
    Filed: August 1, 2017
    Publication date: June 6, 2019
    Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventor: Hiroshi YABU
  • Patent number: 10305052
    Abstract: The present invention pertains to: a Janus-type triptycene derivative which is capable of forming a self-assembled film which does not depend on the material quality of a substrate; a self-assembled film using said Janus-type triptycene derivative; a structure having said film on a surface thereof; a method for manufacturing said film; and an electronic device using said method.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: May 28, 2019
    Assignee: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Takanori Fukushima, Yoshiaki Shoji, Fumitaka Ishiwari, Tsuyoshi Sekitani, Takao Someya
  • Patent number: 10302506
    Abstract: In order to provide a resin composition for temperature sensors that includes a polymer and exhibits high flexibility, higher sensitivity and high cyclic repeatability, a temperature sensor element, a temperature sensor, and a method for producing a temperature sensor, the resin composition (10) for temperature sensors is configured to have conductive particles (2) dispersed in an acrylic polymer (1) obtained by copolymerizing a first acrylic monomer represented by a general formula CH2CHCOOX1 and a second acrylic monomer represented by a general formula CH2CHCOOX2.
    Type: Grant
    Filed: February 5, 2015
    Date of Patent: May 28, 2019
    Assignee: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Tsuyoshi Sekitani, Yuki Terakawa, Tomoyuki Yokota, Takao Someya, Jonathan T. Reeder
  • Patent number: 10301672
    Abstract: The present invention provides a method for easily and exponentially amplifying circular DNA, particularly long chain circular DNA, in a cell-free system. Specifically, the present invention provides a method for amplifying circular DNA in which circular DNA having a replication origin sequence (origin of chromosome (oriC)) is mixed with a reaction solution containing the following enzyme groups to form a reaction mixture, which is then reacted under an isothermal condition, the enzyme groups being: (1) a first enzyme group that catalyzes replication of circular DNA; (2) a second enzyme group that catalyzes an Okazaki fragment maturation and synthesizes two sister circular DNAs constituting a catenane; and (3) a third enzyme group that catalyzes a separation of two sister circular DNAs.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: May 28, 2019
    Assignee: Japan Science and Technology Agency
    Inventors: Masayuki Su'etsugu, Hiroko Kobayashi
  • Patent number: 10304508
    Abstract: A magnetoresistive element includes: a free layer that includes a magnetostrictive layer containing a magnetostrictive material; a pin layer that includes a first ferromagnetic layer; a thin film that is located between the pin layer and the free layer; a piezoelectric substance that is located so as to surround at least a part of the magnetostrictive layer from a direction intersecting with a stacking direction of the free layer and the pin layer and applies a pressure to the magnetostrictive layer; and an electrode that is capable of applying a voltage different from a voltage applied to the free layer and a voltage applied to the pin layer and applies a voltage to the piezoelectric substance so that the piezoelectric substance applies a pressure to the magnetostrictive layer.
    Type: Grant
    Filed: May 31, 2016
    Date of Patent: May 28, 2019
    Assignee: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Satoshi Sugahara, Yota Takamura, Shigeki Nakagawa
  • Publication number: 20190154682
    Abstract: This invention provides a technique enabling to detect target molecules of low concentration with high sensitivity. This invention includes (i) a step of introducing a hydrophilic solvent (42) containing beads (40),(41?) into a space (30) between (a) a lower layer section (10) including a plurality of receptacles (13) each of which is capable of storing only one of the beads (41),(41?) and which are separated from each other by a side wall (12) having a hydrophobic upper surface and (b) an upper layer section (20) facing a surface of the lower layer section (10) on which surface the plurality of receptacles (13) are provided; and (ii) a step of introducing a hydrophobic solvent (43) into the space (30), the step (ii) being carried out after the step (i).
    Type: Application
    Filed: January 29, 2019
    Publication date: May 23, 2019
    Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Hiroyuki NOJI, Ryota IINO, Suguru ARAKI
  • Patent number: 10296496
    Abstract: A data storage unit of a data editing apparatus stores both a base indicating a data attribute and a data value in association with each other as data to be edited. A code acquisition unit acquires a user code, which is a code described in a first program language for describing data editing details by intensive notation and which describes editing details for the data to be edited that are based on the base. A code generation unit generates, in accordance with a predetermined correspondence relationship between a second program language for describing data editing details by extensive notation and the first program language, an execution code described in the second program language based on the user code. An editing processing unit edits the data to be edited in accordance with the execution code.
    Type: Grant
    Filed: July 5, 2012
    Date of Patent: May 21, 2019
    Assignees: TOKYO INSTITUTE OF TECHNOLOGY, JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventor: Hiroshi Deguchi
  • Patent number: 10295367
    Abstract: A signal detection device according to an aspect of the invention includes a laminated structure of a first circuit layer (201) in which a plurality of electrodes brought into contact with a subject is formed, a second circuit layer (202) in which a plurality of amplifiers having an input portion capacitively coupled to the plurality of electrodes, respectively, is formed, and a third circuit layer (203) in which a plurality of transistors for reading outputs of the plurality of amplifiers is formed, an insulation layer which seals the second circuit layer is formed between the plurality of electrodes formed in the first circuit layer and the second circuit layer, and the plurality of electrodes and the input portions of the plurality of amplifiers are capacitively coupled to each other via the insulation layer.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: May 21, 2019
    Assignee: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Tsuyoshi Sekitani, Takao Someya
  • Patent number: 10287260
    Abstract: Provided is a material that, when compared with SAPd, exhibits the similar activity in cross-coupling (CC) reactions, can decrease the amount of catalytic metal that is mixed into the reaction product, and increases the number of times use can be repeated. Provided are a catalyst and a catalyst precursor that use a catalytic metal other than Pd and that exhibit the CC reaction activity similar to when Pd is used. Provided are a catalyst and a catalyst precursor that exhibit the similar CC reaction activity when using Pd or a catalytic metal other than Pd, without using a carrier such as metal and without using piranha solution. A composite wherein catalytic metal nanoparticles are dispersed in a continuous phase comprising a polymer having C2-6 alkylene group units and phenylene group units (an alkylene group unit being bonded to at least the first and fourth position of the phenylene group unit). The particle diameter of the catalytic metal nanoparticles is at most 20 nm.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: May 14, 2019
    Assignees: Japan Science and Technology Agency, Furuya Metal Co., Ltd.
    Inventors: Mitsuhiro Arisawa, Satoshi Shuto, Naoyuki Hoshiya, Satoshi Arai
  • Publication number: 20190134609
    Abstract: A catalyst comprising: a titanium oxide having an anatase-type crystal structure, and having the vertices and the ridge lines, wherein in a single titanium oxide particle, a vertex density per unit surface area is 8.0×10?4 nm?2 or more, and a ridge line density per unit surface area is 5.0×10?2 nm or more, or a ridge line density per unit volume is 8.0×10?3 nm?2 or more. A complex comprising: a material having a porous structure; and said catalyst. A membrane electrode assembly comprising: an anode; cathode; and an electrolyte membrane, wherein the cathode carries said catalyst on at least a surface of the cathode.
    Type: Application
    Filed: March 2, 2017
    Publication date: May 9, 2019
    Applicant: Japan Science and Technology Agency
    Inventors: Miho Yamauchi, Masaaki Sadakiyo, Sho Kitano, Shinichi Hata
  • Publication number: 20190137367
    Abstract: The present invention is a method for preparing a crystal structure analysis sample in which a molecule of an organic compound for which a molecular structure is to be determined, is arranged in pores and voids of a polymer-metal complex crystal in an ordered manner. The method includes immersing a polymer-metal complex crystal including a guest compound in a solvent solution that includes the organic compound, the polymer-metal complex crystal including a guest compound being the polymer-metal complex crystal comprising a polymer-metal complex that comprises a ligand having two or more coordinating moieties. A ratio of an amount of the guest compound (A) present in the pores and the voids to a total amount of the guest compound included in the pores and the voids being 60 mol % or more.
    Type: Application
    Filed: December 12, 2018
    Publication date: May 9, 2019
    Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Makoto Fujita, Yasuhide Inokuma, Shota Yoshioka, Junko Ariyoshi
  • Patent number: 10280142
    Abstract: There are provided a compound capable of being a novel ligand allowing regioselective borylation to be performed in the aromatic borylation reaction, and a catalyst using the same compound.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: May 7, 2019
    Assignee: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Yoichiro Kuninobu, Motomu Kanai, Haruka Ida, Mitsumi Nishi