Patents by Inventor Hiroki IGUCHI

Hiroki IGUCHI 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).

  • Patent number: 12378513
    Abstract: A scaffold material for cell culture having excellent cell colonization is provided. A scaffold material for cell culture according to the present invention includes a synthetic resin having a main chain and a graft chain, wherein the graft chain has a polydentate hydrogen-bonding group represented by the following formula (1) in a side chain: *—R-(Ai)n (1) wherein R represents a group having 50 or less carbon atoms, Ai represents an amino group, a carboxyl group, a hydroxyl group, a sulfone group, an imino group, or a thiol group, i represents a natural number, n represents an integer of two or more and four or less, and * represents a bonding position with another atom constituting the graft chain; and Ai may be identical or different from each other.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: August 5, 2025
    Assignee: SEKISUI CHEMICAL CO., LTD.
    Inventors: Hiroki Iguchi, Yuuta Nakamura, Ryoma Ishii, Yuuhei Arai, Satoshi Haneda
  • Patent number: 12365860
    Abstract: A scaffolding material for culturing a stem cell, which contains a synthetic resin, and has a storage elasticity at 100° C. of 1.0×104 Pa or more and 1.0×108 Pa or less, and a ratio between the storage elasticity at 25° C. and the storage elasticity at 100° C. ((storage elasticity at 25° C.)/(storage elasticity at 100° C.)) of 1.0×101 or more and 1.0×105 or less. The scaffolding material for stem cell culture has suitable hydrophilicity and strength, high fixation of stem cells after seeding, highly efficient cell proliferation, and excellent scratch resistance.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: July 22, 2025
    Assignee: SEKISUI CHEMICAL CO., LTD.
    Inventors: Satoshi Haneda, Yuriko Manabe, Ryoma Ishii, Hiroki Iguchi, Yuhei Arai
  • Patent number: 12234485
    Abstract: Provided is a resin film having excellent cell extensibility in cell culture. The resin film formed of a scaffold material for cell culture containing a synthetic resin, the resin film having a compressive modulus of 5.5 GPa or more at a frequency of 1 Hz as measured using a nanoindenter device in ion-exchanged water in accordance with ISO14577-1 after being immersed in the ion-exchanged water at 37° C. for 24 hours.
    Type: Grant
    Filed: May 27, 2020
    Date of Patent: February 25, 2025
    Assignee: SEKISUI CHEMICAL CO., LTD.
    Inventors: Yuuhei Arai, Ryoma Ishii, Hiroki Iguchi, Satoshi Haneda
  • Patent number: 12180450
    Abstract: A scaffolding material for stem cell culture, which has a dispersion component ?d of the surface free energy of 24.5 or more and less than 45.0, and a dipole component ?p of the surface free energy of 1 or more and less than 20.0. According to the scaffolding material for stem cell culture, the scaffolding material can have suitable hydrophilicity and strength, high fixation of stem cells after seeding, and highly efficient cell proliferation.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: December 31, 2024
    Assignee: SEKISUI CHEMICAL CO., LTD.
    Inventors: Satoshi Haneda, Yuriko Manabe, Ryoma Ishii, Hiroki Iguchi, Hiroshi Yamauchi, Takahiro Omura
  • Patent number: 12157875
    Abstract: A scaffolding material for culturing a cell, the scaffolding material for culturing a cell containing a synthetic resin, and having a nitrogen content of the synthetic resin of 0.1% by mass or more and 10% by mass or less. According to the scaffolding material for cell culture, the scaffolding material can have suitable hydrophilicity and strength, high fixation of cells after seeding, and highly efficient cell proliferation.
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: December 3, 2024
    Assignee: SEKISUI CHEMICAL CO., LTD.
    Inventors: Satoshi Haneda, Yuriko Manabe, Ryoma Ishii, Hiroki Iguchi, Hiroshi Yamauchi, Takahiro Omura
  • Patent number: 12152228
    Abstract: A scaffolding material for cell culture, which has a dispersion component ?d of the surface free energy of 24.5 mJ/m2 or more and less than 45.0 mJ/m2, and a dipole component ?p of the surface free energy of 1.0 mJ/m2 or more and less than 20.0 mJ/m2. According to the scaffolding material for cell culture, the scaffolding material can have suitable hydrophilicity and strength, high fixation of cells after seeding, and highly efficient cell proliferation.
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: November 26, 2024
    Assignee: SEKISUI CHEMICAL CO., LTD.
    Inventors: Satoshi Haneda, Yuriko Manabe, Ryoma Ishii, Hiroki Iguchi, Hiroshi Yamauchi, Takahiro Omura
  • Patent number: 12116557
    Abstract: A scaffolding material for culturing a stem cell, which contains a synthetic resin, and has a nitrogen content of the synthetic resin of 0.1% by mass or more and 10% by mass or less. According to the scaffolding material for stem cell culture, the scaffolding material can have suitable hydrophilicity and strength, high fixation of stem cells after seeding, and highly efficient cell proliferation.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: October 15, 2024
    Assignee: SEKISUI CHEMICAL CO., LTD.
    Inventors: Satoshi Haneda, Yuriko Manabe, Ryoma Ishii, Hiroki Iguchi, Hiroshi Yamauchi, Takahiro Omura
  • Publication number: 20240301340
    Abstract: A scaffolding material for culturing a stem cell, which contains a synthetic resin, and has a nitrogen content of the synthetic resin of 0.1% by mass or more and 10% by mass or less. According to the scaffolding material for stem cell culture, the scaffolding material can have suitable hydrophilicity and strength, high fixation of stem cells after seeding, and highly efficient cell proliferation.
    Type: Application
    Filed: May 17, 2024
    Publication date: September 12, 2024
    Applicant: SEKISUI CHEMICAL CO., LTD.
    Inventors: Satoshi HANEDA, Yuriko Manabe, Ryoma Ishii, Hiroki Iguchi, Hiroshi Yamauchi, Takahiro Omura
  • Patent number: 12080884
    Abstract: Manufacturing a lithium-ion battery includes assembling the lithium-ion battery; and performing an initial charging on the lithium-ion battery. The lithium-ion battery includes a positive electrode, a negative electrode, and an electrolyte; the negative electrode contains a negative electrode active material containing a precursor of a silicon material, the precursor having a composition represented by SiOx where a relationship of 0<x<2 is satisfied. The initial charging includes a first step where the charging is performed to an intermediate voltage at a first current rate, and a second step where the charging is performed from the intermediate voltage to a maximum voltage at a second current rate. The first current rate is lower than 0.5 C; the second current rate is higher than the first current rate; and the intermediate voltage is 3.75 V or higher.
    Type: Grant
    Filed: September 9, 2022
    Date of Patent: September 3, 2024
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Akira Tsujiko, Hiroki Iguchi
  • Patent number: 11918891
    Abstract: A program, embodied on a non-transitory computer-readable medium, which causes an information processing device that executes a game to execute: a step of causing an interface that accepts a user operation to be displayed; a step of storing first information related to game content on the basis of the user operation that is accepted by the interface; a step of storing second information related to game content that is selected among a plurality of items of game content by game content selection processing and is associated with a user; a step of comparing the first information and the second information; a step of causing a comparison result of the first information and the second information to be displayed; and a step of making a predetermined game effect capable of being exhibited in the game on the basis of comparison of the first information and the second information.
    Type: Grant
    Filed: November 17, 2020
    Date of Patent: March 5, 2024
    Assignee: GREE, Inc.
    Inventor: Hiroki Iguchi
  • Publication number: 20240052301
    Abstract: Provided is a microcarrier for cell culture in which adhesion between microcarriers due to a cell mass can be suppressed. The microcarrier for cell culture according to the present invention includes a base particle and a coating layer covering an outer surface of the base particle, and the coating layer includes a resin having a polyvinyl alcohol derivative skeleton or a poly(meth)acrylic acid ester skeleton and having a peptide moiety, and the microcarrier has an average particle size of 300 ?m or more and a CV value of particle size of 10% or less.
    Type: Application
    Filed: February 2, 2022
    Publication date: February 15, 2024
    Applicant: SEKISUI CHEMICAL CO., LTD.
    Inventors: Satoshi HANEDA, Hiroki IGUCHI
  • Publication number: 20230395891
    Abstract: A power supply device includes a secondary cell, a detection device, a storage device, and a control device. The secondary cell includes an electrolyte solution. The detection device detects the voltage and temperature of the secondary cell. The storage device stores first information and second information. The first information indicates the relationship among the voltage, the temperature, and the amount of decrease in the electrolyte solution during energization of the secondary cell. The second information indicates the relationship among the voltage, the temperature, and the amount of decrease in the electrolyte solution during storage of the secondary cell. The control device calculates a first index indicating the amount of decrease in the electrolyte solution.
    Type: Application
    Filed: May 5, 2023
    Publication date: December 7, 2023
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takaaki MATSUI, Hiroki NAGAI, Hiroki IGUCHI, Koichiro ISOBE, Daisuke OKANISHI
  • Patent number: 11811050
    Abstract: A secondary battery module includes a nonaqueous-electrolyte secondary battery and an elastic body, wherein a negative electrode constituting the nonaqueous-electrolyte secondary battery includes a negative-electrode active material layer, the negative-electrode active material layer includes a first layer, and a second layer that is formed on the first layer and has a higher compression modulus than the first layer, a separator constituting the nonaqueous-electrolyte secondary battery has a lower compression modulus than the first layer, the elastic body has a lower compression modulus than the separator, the graphite particles contained in the first layer have a BET specific surface area of 1 to 2.5 m2/g, and the content of Si particles in the first layer is 6 mass % to 13 mass % relative to the total amount of the negative-electrode active material layer.
    Type: Grant
    Filed: February 11, 2021
    Date of Patent: November 7, 2023
    Assignees: PANASONIC HOLDINGS CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kaoru Inoue, Akihiro Taniguchi, Hideki Sano, Kouhei Tsuzuki, Hiroki Iguchi
  • Patent number: 11791471
    Abstract: A secondary battery module according to the present embodiment includes a nonaqueous-electrolyte secondary battery and an elastic body, wherein a negative electrode constituting the nonaqueous-electrolyte secondary battery includes a negative-electrode current collector and a negative-electrode active material layer, the negative-electrode active material layer includes a first layer formed on the negative-electrode current collector, and a second layer that is formed on the first layer and has a higher compression modulus than the first layer, a separator constituting the nonaqueous-electrolyte secondary battery has a lower compression modulus than the first layer, the elastic body has a lower compression modulus than the separator, a graphite particles contained in the first layer have a BET specific surface area of 1 to 2.5 m2/g, and the first layer 52a contains 0.01 mass % to 0.4 mass % of a carbon nanotube having one to five graphene sheets.
    Type: Grant
    Filed: February 9, 2021
    Date of Patent: October 17, 2023
    Assignees: PANASONIC HOLDINGS CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kaoru Inoue, Akihiro Taniguchi, Hideki Sano, Kouhei Tsuzuki, Hiroki Iguchi
  • Publication number: 20230311126
    Abstract: Provided is a microfluidic chip capable of suppressing contamination while downsizing a device. A microfluidic chip 1 includes a chip main body 2, and an optical gas generation tape 8 attached to the chip main body 2 and configured to generate a gas by light irradiation, in which the chip main body 2 includes a microchannel 4, a liquid medium reservoir 5 provided in the middle of the microchannel 4, and a cell binding unit 6 provided on a downstream side of the liquid medium reservoir 5 in the microchannel 4, and a liquid medium stored in the liquid medium reservoir 5 is supplied to the cell binding unit 6 by the gas generated from the optical gas generation tape 8.
    Type: Application
    Filed: October 27, 2021
    Publication date: October 5, 2023
    Applicant: SEKISUI CHEMICAL CO., LTD.
    Inventors: Yoshiki TOMITA, Takamasa KOUNO, Hiroki IGUCHI
  • Patent number: 11658353
    Abstract: A negative electrode active material includes graphite and silicon oxide. On a rectangular coordinate system having an SOC of the battery on a horizontal axis and a dimension of the battery on a vertical axis, a charging profile of the battery includes a first stage and a second stage. When the battery is charged at a current rate equal to or higher than an inherent current rate, a first slope is less steep than a second slope. When the battery is charged at a current rate lower than the inherent current rate, the first slope is steeper than the second slope. During the initial charging, at least charging in the first stage is performed at a current rate lower than the inherent current rate. After the initial charging proceeds to the second stage, the thermal aging is performed at an SOC included in the second stage.
    Type: Grant
    Filed: December 1, 2020
    Date of Patent: May 23, 2023
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hiroki Iguchi
  • Patent number: 11611105
    Abstract: An electrolyte solution for a lithium-ion battery is provided. The electrolyte solution contains at least a solvent and a lithium salt. The lithium salt is dissolved in the solvent. The solvent contains acetic anhydride at a concentration not lower than 80 vol %.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: March 21, 2023
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroki Iguchi, Hideki Sano
  • Publication number: 20230017772
    Abstract: Manufacturing a lithium-ion battery includes assembling the lithium-ion battery; and performing an initial charging on the lithium-ion battery. The lithium-ion battery includes a positive electrode, a negative electrode, and an electrolyte; the negative electrode contains a negative electrode active material containing a precursor of a silicon material, the precursor having a composition represented by SiOx where a relationship of 0<x<2 is satisfied. The initial charging includes a first step where the charging is performed to an intermediate voltage at a first current rate, and a second step where the charging is performed from the intermediate voltage to a maximum voltage at a second current rate. The first current rate is lower than 0.5 C; the second current rate is higher than the first current rate; and the intermediate voltage is 3.75 V or higher.
    Type: Application
    Filed: September 9, 2022
    Publication date: January 19, 2023
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Akira TSUJIKO, Hiroki IGUCHI
  • Publication number: 20220348858
    Abstract: Provided is a cell culture scaffold material having excellent cell adhesion. The cell culture scaffold material according to the present invention contains a peptide-conjugated polyvinyl alcohol derivative having a polyvinyl alcohol derivative portion and a peptide portion, and the peptide portion has a cyclic peptide skeleton.
    Type: Application
    Filed: May 15, 2020
    Publication date: November 3, 2022
    Applicant: SEKISUI CHEMICAL CO., LTD.
    Inventors: Daigo KOBAYASHI, Mayumi YUKAWA, Kenta TAKAKURA, Ryoma ISHII, Hiroki IGUCHI, Yuuhei ARAI, Satoshi HANEDA, Nobuhiko INUI
  • Publication number: 20220325221
    Abstract: Provided is a cell culture scaffold material having excellent extensibility of pseudopodia and excellent cell proliferation. The cell culture scaffold material according to the present invention contains a peptide-conjugated polyvinyl alcohol derivative having a polyvinyl alcohol derivative portion and a peptide portion, and has a hydroxyl value of 1,100 mgKOH/g or less.
    Type: Application
    Filed: May 15, 2020
    Publication date: October 13, 2022
    Applicant: SEKISUI CHEMICAL CO., LTD.
    Inventors: Kenta TAKAKURA, Mayumi YUKAWA, Daigo KOBAYASHI, Ryoma ISHII, Hiroki IGUCHI, Yuuhei ARAI, Satoshi HANEDA, Nobuhiko INUI