Patents by Inventor Hiroshi Yabu

Hiroshi Yabu 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: 20240217976
    Abstract: Provided is a compound having higher fluorescence quantum yield and higher optical stability than a conventional FLAP and a polymer compound containing the compound. A: seven or eight-membered ring structure, Y1, Y2, Y3: halogen atom or the like, a1: number of Y1, a2: number of Y2, B: number of Y3, 0?m and n?3: when 1?m?3, Y1 may be substituted with a structure portion defined by m, when 1?n?3, Y2 may be substituted with a structure portion defined by n, and B1, B2: Formulas (2-1) to (2-3): C1, C2, C3: structure containing a cyclic hydrocarbon compound, D1, D2, D3: substructure that inhibits aggregation, E1, E2, E3: polymerizable substructure, Z1: hydrogen atom or the like, c: number of substituent groups Z1, Z2, Z3: hydrogen atom or the like, and may form a ring with C2.
    Type: Application
    Filed: December 8, 2022
    Publication date: July 4, 2024
    Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Shohei SAITO, Hiroshi YABU, Hiroya ABE
  • Publication number: 20240145732
    Abstract: Provided is a catalyst excellent in both oxygen reduction catalytic performance and oxygen evolution catalytic performance and making effective use of biomass, a manufacturing method thereof, an electrode for a metal-air secondary battery or a water electrolysis system containing the catalyst, and a metal-air secondary battery or a water electrolysis system containing the electrode. Provided is a catalyst containing a calcined product of a mixture including biomass-derived cellulose nanofibers and a dry matter containing proteins or amino acids, a manufacturing method thereof, an electrode for a metal-air secondary battery or an electrode for a water electrolysis system containing the catalyst, and a metal-air secondary battery or a water electrolysis system containing the electrode.
    Type: Application
    Filed: August 24, 2022
    Publication date: May 2, 2024
    Inventors: Koju Ito, Hiroshi Yabu
  • Patent number: 11932773
    Abstract: Provided are a coated particle that enables particles with low surface free energy to be dispersed in an aqueous solvent without using a fluorochemical surfactant, a dispersion solution, a dispersion method of coated particles, a coating film, a manufacturing method of a coating film, and a copolymer. A coated particle has: a particle with surface free energy of 50 mJ/m2 or less; and a copolymer in which a monomer including a hydrophilic group except for catechol groups and a monomer including at least a catechol group are copolymerized, and the particle is coated with the copolymer.
    Type: Grant
    Filed: July 23, 2021
    Date of Patent: March 19, 2024
    Assignee: TOHOKU UNIVERSITY
    Inventor: Hiroshi Yabu
  • Patent number: 11787915
    Abstract: A molding device produces a porous film from a molding material which is an emulsion. In a case where a volume of a dispersed phase is X1 and a volume of a continuous phase is X2, the molding material has a value of X1/(X1+X2) within a range of 0.5 or more and 0.9 or less. In the molding material, a specific gravity of the dispersed phase is greater than a specific gravity of the continuous phase. The molding material includes a water phase containing a curable compound as the continuous phase, and forms a liquid film on a support. Thereafter, the curable compound in the liquid film is cured. After curing, the dispersed phase is removed.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: October 17, 2023
    Assignee: FUJIFILM Corporation
    Inventors: Keisuke Oku, Koju Ito, Hiroshi Yabu, Yoshiaki Uchida
  • Patent number: 11772084
    Abstract: The present invention provides a catalyst which has oxygen reduction catalytic ability surpassing that of a platinum-carrying carbon material. This catalyst comprises a carbon material and a metal complex represented by formula (1). In formula (1), X1 to X8 each independently represent a hydrogen atom or a halogen atom, D1 to D4 each represent a nitrogen atom or a carbon atom wherein the carbon atom has bound thereto a hydrogen atom or a halogen atom, and M represents a metallic atom.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: October 3, 2023
    Assignee: Azul Energy Inc.
    Inventors: Hiroshi Yabu, Tomokazu Matsue, Akichika Kumatani, Hiroya Abe, Yutaro Hirai, Kohei Nozaki
  • Publication number: 20230261259
    Abstract: An object is to provide an electrolyte having stretchability and flexibility and capable of preventing a decrease in durability of the electrolyte, a secondary cell, and a composite material. The object can be implemented with an electrolyte containing: a polymer obtained by polymerizing a monomer represented by the following Formula (1) (In Formula (1), R1 and R2 each independently represent H or a linear, branched, or cyclic alkyl group having 1 to 20 carbon atoms. X1 and X2 each independently represent O or NH. When X2 is O, n represents an integer of 0 to 30 on average, and when X2 is NH, n represents an integer of 1 to 30 on average.); a glyme represented by the following Formula (2) (In Formula (2), R3 and R4 each independently represent an alkyl group having 1 to 4 carbon atoms, and m represents an integer of 1 to 4.); and at least one salt selected from the group consisting of a lithium salt, a sodium salt, a magnesium salt, a potassium salt, and a calcium salt.
    Type: Application
    Filed: June 28, 2021
    Publication date: August 17, 2023
    Inventors: Hiroshi Yabu, Shin-ichi Orimo, Kazuaki Kisu, Manjit Singh Grewal
  • Publication number: 20230249150
    Abstract: A method for manufacturing a porous film includes: a first step of preparing droplets (D) which are formed from a first liquid into spheres with a predetermined diameter of 10 ?m or more and 2000 ?m or less and a second liquid (L2) which includes a curing agent which cures by imparting energy or a curing agent which cures due to change in pH and includes droplets dispersed therein; a second step of injecting the droplets and the second liquid into a gap between a pair of substrates (31 and 32); a third step of curing the second liquid to form an external phase; and the fourth step of removing the droplets in the external phase to form hole sections.
    Type: Application
    Filed: March 20, 2023
    Publication date: August 10, 2023
    Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Yosuke IWAI, Yoshiaki UCHIDA, Hiroshi YABU
  • Patent number: 11661490
    Abstract: A molded body is produced from a molding material including a continuous phase and a dispersed phase by a three-dimensionalization step, a curing step, and a peeling step. The continuous phase of the molding material is a water phase containing a curable compound. In the three-dimensionalization step, the molding material is placed in a container. In the curing step, the curable compound is cured to form a cured product after the three-dimensionalization step. In the peeling step, the container and the cured product are separated after the curing step. In the dispersed phase removal step, the dispersed phase of the cured product is removed after the curing step.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: May 30, 2023
    Assignee: FUJIFILM Corporation
    Inventors: Keisuke Oku, Koju Ito, Hiroshi Yabu, Yoshiaki Uchida
  • Publication number: 20230125359
    Abstract: Provided is a compound having higher fluorescence quantum yield and higher optical stability than a conventional FLAP and a polymer compound containing the compound. A: seven or eight-membered ring structure, Y1, Y2, Y3: halogen atom or the like, al: number of Y1, a2: number of Y2, B: number of Y3, 0?m and n?3: when 1?m?3, Y1 may be substituted with a structure portion defined by m, when 1?n?3, Y2 may be substituted with a structure portion defined by n, and B1, B2: Formulas (2-1) to (2-3): C1, C2, C3: structure containing a cyclic hydrocarbon compound, D1, D2, D3: substructure that inhibits aggregation, E1, E2, E3: polymerizable substructure, Z1: hydrogen atom or the like, c: number of substituent groups Z1, Z2, Z3: hydrogen atom or the like, and may form a ring with C2.
    Type: Application
    Filed: December 8, 2022
    Publication date: April 27, 2023
    Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Shohei SAITO, Hiroshi YABU, Hiroya ABE
  • Patent number: 11633523
    Abstract: Provided are a method for producing a cell tissue, including a culturing step of culturing cells capable of serving as a feeder inside opening pores and communicating pores of a porous film having a plurality of the opening pores provided on a surface thereof and the communicating pores communicating mutually adjacent opening pores with one another; and a porous film including a plurality of opening pores provided on a surface thereof and communicating pores communicating mutually adjacent opening pores with one another.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: April 25, 2023
    Assignee: FUJIFILM CORPORATION
    Inventors: Koju Ito, Shun Goto, Souichi Kohashi, Kohji Nakazawa, Hiroshi Yabu
  • Patent number: 11560383
    Abstract: Provided is a compound having higher fluorescence quantum yield and higher optical stability than a conventional FLAP and a polymer compound containing the compound. A: seven or eight-membered ring structure, Y1, Y2, Y3: halogen atom or the like, a1: number of Y1, a2: number of Y2, B: number of Y3, 0?m and n?3: when 1?m?3, Y1 may be substituted with a structure portion defined by m, when 1?n?3, Y2 may be substituted with a structure portion defined by n, and B1, B2: Formulas (2-1) to (2-3). C1, C2, C3: structure containing a cyclic hydrocarbon compound, D1, D2, D3: substructure that inhibits aggregation, E1, E2, E3: polymerizable substructure, Z1: hydrogen atom or the like, c: number of substituent groups Z1, Z2, Z3: hydrogen atom or the like, and may form a ring with C2.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: January 24, 2023
    Assignee: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Shohei Saito, Hiroshi Yabu, Hiroya Abe
  • Patent number: 11492432
    Abstract: Provided is a resin for nanoimprinting, which is capable of preventing removal of a transfer-receiving resin from a substrate when a mold is separated during nanoimprinting, and which is also capable of transferring a pattern on a mold to a transfer-receiving resin with high accuracy during thermal nanoimprinting, while improving the throughput. A resin for nanoimprinting, which is represented by formula (1). (In the formula, each of R1-R5 independently represents —H or —OH, and at least one of the R1-R5 moieties represents —OH; R6 represents a linear, branched or cyclic alkyl group having 1-20 carbon atoms, an aryl group having 6-20 carbon atoms or an aralkyl group having 7-20 carbon atoms; X represents an amide or an ester; Y may be absent, or represents an amide or an ester; P represents an integer of 1-10; and each of m and n represents an integer of 1 or more.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: November 8, 2022
    Assignee: Japan Science and Technology Agency
    Inventors: Hiroshi Yabu, Yuta Saito
  • Publication number: 20220278338
    Abstract: A catalyst having an excellent oxygen reduction catalytic ability, and showing excellent durability when used for an electrode for fuel cells and metal-air batteries; and a production method of a catalyst having an excellent oxygen reduction catalytic ability, and showing excellent durability when used for an electrode for fuel cells and metal-air batteries are provided. The production method of a catalyst includes: a step (a) of dissolving a metal complex in a solvent to prepare a solution; a step (b) of dispersing a conductive powder in the solution to prepare a dispersion liquid; and a step (c) of removing the solvent from the dispersion liquid, in which a complex is formed by adsorbing the metal complex on a surface of the conductive powder to use the complex as a catalyst.
    Type: Application
    Filed: September 2, 2020
    Publication date: September 1, 2022
    Inventors: Hiroshi Yabu, Koju Ito, Hiroya Abe, Koki Nakamura
  • Publication number: 20220025206
    Abstract: Provided are a coated particle that enables particles with low surface free energy to be dispersed in an aqueous solvent without using a fluorochemical surfactant, a dispersion solution, a dispersion method of coated particles, a coating film, a manufacturing method of a coating film, and a copolymer. A coated particle has: a particle with surface free energy of 50 mJ/m2 or less; and a copolymer in which a monomer including a hydrophilic group except for catechol groups and a monomer including at least a catechol group are copolymerized, and the particle is coated with the copolymer.
    Type: Application
    Filed: July 23, 2021
    Publication date: January 27, 2022
    Inventor: Hiroshi YABU
  • Publication number: 20210308659
    Abstract: The present invention provides a catalyst which has oxygen reduction catalytic ability surpassing that of a platinum-carrying carbon material. This catalyst comprises a carbon material and a metal complex represented by formula (1). In formula (1), X1 to X8 each independently represent a hydrogen atom or a halogen atom, D1 to D4 each represent a nitrogen atom or a carbon atom wherein the carbon atom has bound thereto a hydrogen atom or a halogen atom, and M represents a metallic atom.
    Type: Application
    Filed: December 26, 2018
    Publication date: October 7, 2021
    Inventors: Hiroshi Yabu, Tomokazu Matsue, Akichika Kumatani, Hiroya Abe, Yutaro Hirai, Kohei Nozaki
  • Patent number: 11078381
    Abstract: A hydrogel that adheres to the surface of materials is provided by using as constituent elements a water-soluble main chain monomer, crosslinking agent, polymerization initiator, and adhesive monomer having at least a catechol group in a side chain.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: August 3, 2021
    Assignee: Japan Science and Technology Agency
    Inventors: Hiroshi Yabu, Matsuhiko Nishizawa, Kuniaki Nagamine, Yuta Saito, Jun Kamei, Tatsuaki Shimazaki, Shun Chihara
  • Patent number: 11015010
    Abstract: Provided is a block copolymer that makes it possible to produce inorganic nanoparticles that can be dispersed in an organic solvent, the inorganic nanoparticles being of uniform size and a reducing agent not having to be used. A block copolymer including a catechol segment represented by formula (1).
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: May 25, 2021
    Assignee: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Hiroshi Yabu, Yuta Saito
  • Publication number: 20210002284
    Abstract: Provided is a compound having higher fluorescence quantum yield and higher optical stability than a conventional FLAP and a polymer compound containing the compound. A: seven or eight-membered ring structure, Y1,Y2,Y3: halogen atom or the like, a1: number of Y1, a2: number of Y2, B: number of Y3, 0?m and n?3: when 1?m?3, Y1 may be substituted with a structure portion defined by m, when 1?n?3, Y2 may be substituted with a structure portion defined by n, and B1, B2: Formulas (2-1) to (2-3). C1, C2, C3: structure containing a cyclic hydrocarbon compound, D1, D2, D3: substructure that inhibits aggregation, E1, E2, E3: polymerizable substructure, Z1: hydrogen atom or the like, c: number of substituent groups Z1, Z2, Z3: hydrogen atom or the like, and may form a ring with C2.
    Type: Application
    Filed: March 4, 2019
    Publication date: January 7, 2021
    Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Shohei SAITO, Hiroshi YABU, Hiroya ABE
  • Patent number: 10851237
    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: Grant
    Filed: August 1, 2017
    Date of Patent: December 1, 2020
    Assignee: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventor: Hiroshi Yabu
  • Publication number: 20200347198
    Abstract: A molding device produces a porous film from a molding material which is an emulsion. In a case where a volume of a dispersed phase is X1 and a volume of a continuous phase is X2, the molding material has a value of X1/(X1+X2) within a range of 0.5 or more and 0.9 or less. In the molding material, a specific gravity of the dispersed phase is greater than a specific gravity of the continuous phase. The molding material includes a water phase containing a curable compound as the continuous phase, and forms a liquid film on a support. Thereafter, the curable compound in the liquid film is cured. After curing, the dispersed phase is removed.
    Type: Application
    Filed: July 22, 2020
    Publication date: November 5, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Keisuke OKU, Koju ITO, Hiroshi YABU, Yoshiaki UCHIDA