Patents by Inventor Koju Ito

Koju Ito 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: 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: 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
  • Publication number: 20230303606
    Abstract: To provide a metal complex or adduct thereof having excellent oxygen reduction catalyst performance, a catalyst including the metal complex or adduct thereof and a method of producing the catalyst, a liquid composition or electrode including the catalyst, and an air battery or fuel cell including the electrode. A metal complex or adduct thereof represented by Formula (1) or (2), a catalyst including the metal complex or adduct thereof, a method of producing the catalyst, a liquid composition or electrode including the catalyst, and an air battery or fuel cell including the electrode.
    Type: Application
    Filed: December 21, 2021
    Publication date: September 28, 2023
    Inventors: Koju Ito, Koki Nakamura
  • Publication number: 20230223554
    Abstract: Provided is an oxygen reduction catalyst having an excellent oxygen reduction catalytic activity and a selection method thereof, a liquid composition or electrode containing an oxygen reduction catalyst, and an air battery or fuel cell provided with the electrode. An oxygen reduction catalyst containing a metal complex and a conductive material and having an ionization potential value of 5.80 eV or lower and a selection method thereof, a liquid composition or electrode containing an oxygen reduction catalyst, and an air battery or fuel cell provided with electrode.
    Type: Application
    Filed: December 21, 2021
    Publication date: July 13, 2023
    Inventors: Koju Ito, Koki Nakamura
  • 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
  • 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
  • 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
  • Patent number: 11390837
    Abstract: A microchannel device includes: a channel unit which is configured of a plurality of channel members which are laminated in a thickness direction to define a microchannel, at least one of the channel members being made of a material having elasticity; and a holding member which is provided separately from or integrally with the channel unit and holds the channel unit in a state of being compressed in the thickness direction.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: July 19, 2022
    Assignee: FUJIFILM CORPORATION
    Inventors: Takahiro Oba, Akira Wakabayashi, Koju Ito
  • Publication number: 20220119763
    Abstract: Provided are a method for producing a hepatocyte culture and a method for improving or maintaining a function of a hepatocyte or a hepatic progenitor cell, each method including a culturing step of culturing a hepatocyte or a hepatic progenitor cell inside at least a part of a plurality of opening pores and communication pores of a porous film having the plurality of opening pores provided on a surface thereof and the communication pores for communicating the opening pores adjacent to each other; and a cell-containing porous film.
    Type: Application
    Filed: December 20, 2021
    Publication date: April 21, 2022
    Inventors: Keisuke OKU, Koju ITO, Koji NAKAZAWA
  • Publication number: 20220082503
    Abstract: Provided is a measurement device including a mounting unit in which a flow channel device is attachably and detachably mounted, the flow channel device including a first flow channel, a second flow channel having a communicating portion that communicates with a part of the first flow channel, and a cell sheet in which a plurality of cultured cells are arranged in such a manner that the cells are bound to each other and which partitions between the first flow channel and the second flow channel at the communicating portion; and a detection unit that optically distinguishes and detects a leakage state of each of a plurality of types of tracers having different sizes and leaking out from the first flow channel into the second flow channel through a defect occurring in the cell sheet in a case where an evaluation liquid is fed into the first flow channel.
    Type: Application
    Filed: September 22, 2021
    Publication date: March 17, 2022
    Inventors: Takahiro OGURA, Koju ITO
  • Publication number: 20210403847
    Abstract: A cell culture system includes: a plurality of cell culture channels each of which includes a fluidic device in which cells are cultured, a pump which makes a liquid flow into the fluidic device, a detection unit which detects a state of the cells that are cultured, and a controller which controls the pump and the detection unit; a measurement unit that measures culture environment of the cells which are cultured in the plurality of cell culture channels; and an information processing apparatus that adjusts the culture environment such that an absolute value of a difference between evaluation values for the states of the cells that are cultured in the plurality of cell culture channels is a threshold value or less, on the basis of the state of the cells detected by the detection unit and the culture environment of the cells measured by the measurement unit.
    Type: Application
    Filed: September 13, 2021
    Publication date: December 30, 2021
    Inventors: Hidetoshi TAKAYAMA, Koju ITO, Takahiro OBA, Keisuke OKU
  • Publication number: 20210403855
    Abstract: An information processing apparatus includes an acquisition unit that acquires an evaluation value for a state of cells which are cultured in each of a plurality of fluidic devices, culture environment, and information representing a disposition position of the fluidic device; and a generation unit that generates a learned model in which the evaluation value and the information representing the disposition position are received as an input and the culture environment is output, through machine learning using, as training data, the evaluation value before adjustment of the culture environment, the culture environment after the adjustment, and the information representing the disposition position, in a case where, due to the adjustment, the evaluation value becomes a first threshold value or more and an absolute value of a difference in evaluation value between the plurality of fluidic devices becomes a second threshold value or less.
    Type: Application
    Filed: September 13, 2021
    Publication date: December 30, 2021
    Inventors: Hidetoshi TAKAYAMA, Koju ITO, Takahiro OBA, Keisuke OKU
  • Publication number: 20210395673
    Abstract: There is provided an accommodation case (1) having a first wall part (33) in which a power supply unit (40) that transmits electric power to a power supply destination in a noncontact state is provided, a second wall part (34) in which a power reception unit (50) that receives electric power that is supplied from a power supply source in a noncontact state is provided, where the second wall part (34) faces the first wall part (33), and an accommodation space (35) that is surrounded by a plurality of wall parts including the first wall part (33) and the second wall part (34).
    Type: Application
    Filed: August 31, 2021
    Publication date: December 23, 2021
    Inventors: Hidetoshi TAKAYAMA, Koju ITO, Takahiro OBA, Keisuke OKU
  • Publication number: 20210395656
    Abstract: There is provided an incubator including an accommodation space that is shielded from an external environment, an environmental control unit that controls an environment of the inside of the accommodation space, a power supply unit that is provided in the accommodation space and transmits electric power to a power supply target in a noncontact state, and a partition wall that is provided in the accommodation space and shields electromagnetic waves radiated from the power supply unit.
    Type: Application
    Filed: August 31, 2021
    Publication date: December 23, 2021
    Inventors: Hidetoshi TAKAYAMA, Koju ITO, Takahiro OBA, Keisuke OKU
  • Publication number: 20200385664
    Abstract: An object is to provide a channel device that can perform both optical measurement and electrical measurement. The object is achieved by having a first channel member having a first channel, a second channel member having a second channel, a porous membrane provided between the first channel member and the second channel member, and a pair of transparent electrodes provided so as to interpose the first channel and the second channel therebetween.
    Type: Application
    Filed: August 25, 2020
    Publication date: December 10, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Takahiro OBA, Takahiro OGURA, Koju ITO
  • Publication number: 20200369998
    Abstract: Provided is a microchannel device including a first microchannel that is formed in a first channel member, a second microchannel that is formed in a second channel member and at least a portion of which overlaps the first microchannel in plan view with a step portion formed between the first microchannel and the second microchannel, a porous membrane that has a plurality of holes penetrating the porous membrane in a thickness direction and is disposed between the first channel member and the second channel member to partition the first microchannel and the second microchannel, and a reinforcing member that is provided between the first channel member or the second channel member and the porous membrane, is higher in stiffness than the porous membrane, and reinforces at least a portion of the porous membrane that faces the step portion.
    Type: Application
    Filed: August 6, 2020
    Publication date: November 26, 2020
    Inventors: Hayato MIYOSHI, Koju ITO, Takahiro OBA, Akira WAKABAYASHI
  • Publication number: 20200347199
    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: Application
    Filed: July 22, 2020
    Publication date: November 5, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Keisuke OKU, Koju ITO, Hiroshi YABU, Yoshiaki UCHIDA
  • 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
  • Patent number: D907239
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: January 5, 2021
    Assignee: Fujifilm Corporation
    Inventors: Akinori Ochiai, Yuki Imakura, Masafumi Nishino, Koju Ito
  • Patent number: D907240
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: January 5, 2021
    Assignee: Fujifilm Corporation
    Inventors: Akinori Ochiai, Yuki Imakura, Masafumi Nishino, Koju Ito