Patents by Inventor Daigo Kobayashi

Daigo Kobayashi 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: 11962052
    Abstract: A fuel cell module comprises: at least one cell stack including a plurality of single fuel cells supplied with a fuel gas and an oxidizing gas to generate power; a sealable housing accommodating the at least one cell stack and forming a power generation chamber inside the housing; a pressure vessel accommodating the housing; and an oxidizing gas supply pipe for supplying the oxidizing gas to the cell stack. At least one pressure equalizing opening is formed in the housing to allow communication between inside and outside of the housing. The at least one pressure equalizing opening includes only one pressure equalizing opening, or a plurality of pressure equalizing openings in which a distance between a pressure equalizing opening in the highest position and a pressure equalizing opening in the lowest position is within 0.1H, where H is a height of the housing.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: April 16, 2024
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Daigo Kobayashi, Hiroyuki Ozawa, Masahiro Mihara, Ryutaro Mori, Takeshi Matsuo, Norihisa Matake
  • 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
  • Publication number: 20220227898
    Abstract: Provided is a resin film formed of a cell culture scaffold material, which has excellent fixation of cells after seeding and is capable of enhancing proliferation rate of cells. A resin film formed of a cell culture scaffold material, in which the cell culture scaffold material contains a synthetic resin, and the resin film has phase-separated structure including least a first phase and a second phase, and a ratio of the surface area of one of the first phase and the second phase to the entire surface is 0.01 or more and 0.95 or less.
    Type: Application
    Filed: May 15, 2020
    Publication date: July 21, 2022
    Applicant: SEKISUI CHEMICAL CO., LTD.
    Inventors: Hiroki IGUCHI, Yuuhei ARAI, Nobuhiko INUI, Mayumi YUKAWA, Daigo KOBAYASHI, Yuuta NAKAMURA, Kenta TAKAKURA, Satoshi HANEDA, Ryoma ISHII
  • Patent number: 11390720
    Abstract: Provided are a sizing agent coated carbon fiber bundle that has excellent mechanical characteristics when used as a carbon fiber reinforced composite material, as well as excellent ease of handling; a method for manufacturing the same; and a prepreg and carbon fiber reinforced composite material of excellent mechanical characteristics, employing the fiber bundle. The carbon fiber bundle is coated with a sizing agent that includes a polyether aliphatic epoxy compound having two or more epoxy groups per molecule and/or a polyol aliphatic epoxy compound or a non-water-soluble compound having a glass transition temperature of ?100-50° C.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: July 19, 2022
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Takumi Hiasa, Daigo Kobayashi, Tomoko Ichikawa
  • Publication number: 20220190367
    Abstract: A fuel cell power generation system includes a first fuel cell and a second fuel cell generating power using a second fuel gas exhausted from the first fuel cell. A regulating valve is used for regulating a supply amount of an oxidant gas to be supplied to the second fuel cell in such a manner that a temperature at the second fuel cell becomes a reference value.
    Type: Application
    Filed: November 21, 2019
    Publication date: June 16, 2022
    Inventors: Norihisa MATAKE, Yasushi IWAI, Ryutaro MORI, Takahiro JOJIMA, Daigo KOBAYASHI
  • Publication number: 20220190377
    Abstract: This fuel cell cartridge includes a plurality of cell stacks including a plurality of cells for forming a solid oxide fuel cell. A cell stack group including the plurality of cell stacks includes an inner cell stack group arranged in an inner region of a cell arrangement region and an outer cell stack group arranged in an outer region. The inner cell stack group and the outer cell stack group are connected in series and a current density of the outer cell stack group is configured to be higher than a current density of the inner cell stack group.
    Type: Application
    Filed: February 17, 2020
    Publication date: June 16, 2022
    Inventors: Ryutaro MORI, Norihisa MATAKE, Masahiro MIHARA, Daigo KOBAYASHI, Nagao HISATOME
  • Publication number: 20220131174
    Abstract: A fuel cell module comprises: at least one cell stack including a plurality of single fuel cells supplied with a fuel gas and an oxidizing gas to generate power; a sealable housing accommodating the at least one cell stack and forming a power generation chamber inside the housing; a pressure vessel accommodating the housing; and an oxidizing gas supply pipe for supplying the oxidizing gas to the cell stack. At least one pressure equalizing opening is formed in the housing to allow communication between inside and outside of the housing. The at least one pressure equalizing opening includes only one pressure equalizing opening, or a plurality of pressure equalizing openings in which a distance between a pressure equalizing opening in the highest position and a pressure equalizing opening in the lowest position is within 0.1H, where H is a height of the housing.
    Type: Application
    Filed: February 14, 2020
    Publication date: April 28, 2022
    Inventors: Daigo KOBAYASHI, Hiroyuki OZAWA, Masahiro MIHARA, Ryutaro MORI, Takeshi MATSUO, Norihisa MATAKE
  • Patent number: 10981307
    Abstract: A method of producing a molded product includes preparing a mold for insert molding, setting an insert member, forming a cavity in a condition in which the insert member is disposed by closing the mold and injecting a molten resin into the cavity. The mold for insert molding includes first and second molds, and the first mold has a guide surface provided at a part corresponding to a trunk portion of the molded product within a wall surface defining a groove portion which constitutes a part of the cavity. The insert member is set at the groove portion of the first mold while the projecting portion being guided by the guide surface.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: April 20, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Masaaki Udagawa, Yohei Doi, Daigo Kobayashi
  • Patent number: 10933567
    Abstract: A method of producing a molded product includes preparing a mold for insert molding, setting an insert member, forming a cavity in a condition in which the insert member is disposed by closing the mold and injecting a molten resin into the cavity. The mold for insert molding includes first and second molds, and the first mold has a guide surface provided at a part corresponding to a trunk portion of the molded product within a wall surface defining a groove portion which constitutes a part of the cavity. The insert member is set at the groove portion of the first mold while the projecting portion being guided by the guide surface.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: March 2, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Masaaki Udagawa, Yohei Doi, Daigo Kobayashi
  • Publication number: 20200165400
    Abstract: Provided are a sizing agent coated carbon fiber bundle that has excellent mechanical characteristics when used as a carbon fiber reinforced composite material, as well as excellent ease of handling; a method for manufacturing the same; and a prepreg and carbon fiber reinforced composite material of excellent mechanical characteristics, employing the fiber bundle. The carbon fiber bundle is coated with a sizing agent that includes a polyether aliphatic epoxy compound having two or more epoxy groups per molecule and/or a polyol aliphatic epoxy compound or a non-water-soluble compound having a glass transition temperature of ?100-50° C.
    Type: Application
    Filed: December 6, 2019
    Publication date: May 28, 2020
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Takumi HIASA, Daigo KOBAYASHI, Tomoko ICHIKAWA
  • Patent number: 10544275
    Abstract: Provided are a sizing agent coated carbon fiber bundle that has excellent mechanical characteristics when used as a carbon fiber reinforced composite material, as well as excellent ease of handling; a method for manufacturing the same; and a prepreg and carbon fiber reinforced composite material of excellent mechanical characteristics, employing the fiber bundle. The carbon fiber bundle is coated with a sizing agent that includes a polyether aliphatic epoxy compound having two or more epoxy groups per molecule and/or a polyol aliphatic epoxy compound or a non-water-soluble compound having a glass transition temperature of ?100-50° C.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: January 28, 2020
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Takumi Hiasa, Daigo Kobayashi, Tomoko Ichikawa
  • Patent number: 10527813
    Abstract: A plastic lens is fixed by a holder biting into the plastic lens, a side surface of the plastic lens has a gate trace, and a bite amount into the plastic lens of the holder closest to the gate trace is smaller than an average bite amount into the plastic lens of the holder.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: January 7, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventor: Daigo Kobayashi
  • Patent number: 10208173
    Abstract: Sizing agent-coated reinforcing fibers include reinforcing fibers and a sizing agent containing a polyrotaxane, the reinforcing fibers being coated with the sizing agent. Provided are sizing agent-coated reinforcing fibers that provide a fiber-reinforced composite material with excellent mechanical properties, a method for producing the sizing agent-coated reinforcing fibers, a prepreg including the sizing agent-coated reinforcing fibers, and a fiber-reinforced composite material with excellent mechanical properties including the sizing agent-coated reinforcing fibers.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: February 19, 2019
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Takumi Hiasa, Daigo Kobayashi, Tomoko Ichikawa, Makoto Endo
  • Patent number: 10184034
    Abstract: The carbon fiber forming raw material is a carbon fiber forming raw material (Z) as a prepreg including sizing agent-coated carbon fibers and a thermosetting resin or a carbon fiber forming raw material (Y) as a forming material that includes sizing agent-coated carbon fibers and has a woven fabric form or a braid form. The sizing agent includes components (A) and (B). The component (A) is an epoxy compound having two or more epoxy groups or two or more types of functional groups. The component (B) is one or more compounds selected from the group consisting of a tertiary amine compound, a tertiary amine salt, a quaternary ammonium salt, a quaternary phosphonium salt, and a phosphine compound. The component (B) is contained in an amount of 0.1 to 25 parts by mass relative to 100 parts by mass of the component (A).
    Type: Grant
    Filed: November 12, 2012
    Date of Patent: January 22, 2019
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Yoshifumi Nakayama, Toshiya Kamae, Daigo Kobayashi, Makoto Endo
  • Publication number: 20180272582
    Abstract: A method of producing a molded product includes preparing a mold for insert molding, setting an insert member, forming a cavity in a condition in which the insert member is disposed by closing the mold and injecting a molten resin into the cavity. The mold for insert molding includes first and second molds, and the first mold has a guide surface provided at a part corresponding to a trunk portion of the molded product within a wall surface defining a groove portion which constitutes a part of the cavity. The insert member is set at the groove portion of the first mold while the projecting portion being guided by the guide surface.
    Type: Application
    Filed: March 12, 2018
    Publication date: September 27, 2018
    Inventors: Masaaki Udagawa, Yohei Doi, Daigo Kobayashi
  • Publication number: 20180272585
    Abstract: A method of producing a molded product includes preparing a mold for insert molding in which a cavity corresponding to a molded product including a trunk portion and an arm portion is defined, disposing an insert member including a bent portion and a first extending portion extending from the bent portion in a state in which one side of the insert member is supported in the cavity such that the first extending portion is downstream of the bent portion in a flow direction of molten resin, wherein the mold includes, on a wall surface defining a space corresponding to the arm portion in the cavity, a first projecting portion that supports a part of a surface of the first extending portion positioned on a major angle side of the bent portion, and injecting molten resin into the cavity.
    Type: Application
    Filed: March 15, 2018
    Publication date: September 27, 2018
    Inventors: Kazuhiro Kochi, Daigo Kobayashi, Masaaki Udagawa, Yohei Doi, Masaru Nabeshima, Haruyasu Ishikawa, Akihiro Baba, Daisuke Sannohe
  • Patent number: 9989674
    Abstract: A plastic optical component includes a base member made of a first plastic, and a covering member disposed over a surface of the plastic member. The covering member is made of a second plastic. The water absorption of the first plastic is lower than the water absorption of the second plastic.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: June 5, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Wataru Kikuchi, Daigo Kobayashi, Yuichi Miyoshi
  • Publication number: 20180031796
    Abstract: A plastic lens is fixed by a holder biting into the plastic lens, a side surface of the plastic lens has a gate trace, and a bite amount into the plastic lens of the holder closest to the gate trace is smaller than an average bite amount into the plastic lens of the holder.
    Type: Application
    Filed: July 26, 2017
    Publication date: February 1, 2018
    Inventor: Daigo Kobayashi
  • Publication number: 20170349720
    Abstract: Provided are a sizing agent coated carbon fiber bundle that has excellent mechanical characteristics when used as a carbon fiber reinforced composite material, as well as excellent ease of handling; a method for manufacturing the same; and a prepreg and carbon fiber reinforced composite material of excellent mechanical characteristics, employing the fiber bundle. The carbon fiber bundle is coated with a sizing agent that includes a polyether aliphatic epoxy compound having two or more epoxy groups per molecule and/or a polyol aliphatic epoxy compound or a non-water-soluble compound having a glass transition temperature of ?100-50° C.
    Type: Application
    Filed: January 13, 2016
    Publication date: December 7, 2017
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Takumi HIASA, Daigo KOBAYASHI, Tomoko ICHIKAWA