Patents by Inventor Takao Kuromiya

Takao Kuromiya 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: 10763550
    Abstract: Provided is a stacked all-solid-state battery including a plurality of all-solid-state batteries, each all-solid-state battery including a cathode layer that has a cathode current collector and a cathode active material layer containing a cathode active material and formed on the cathode current collector, an anode layer that has an anode current collector and an anode active material layer containing an anode active material and formed on the anode current collector, and a solid electrolyte layer disposed between the cathode active material layer and the anode active material layer and containing a solid electrolyte having a lithium ion conductivity. The plurality of all-solid-state batteries are stacked, and the plurality of all-solid-state batteries include two adjacent all-solid-state batteries, the two all-solid-state batteries being configured such that the cathode current collector of one all-solid-state battery is directly joined to the anode current collector of the other all-solid-state battery.
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: September 1, 2020
    Assignee: PANASONIC INTELLECTUAL PROPRETY MANAGEMENT CO., LTD.
    Inventors: Kenta Hasegawa, Takao Kuromiya
  • Patent number: 10654201
    Abstract: A composite resin molded body includes a base compound resin and a molten-kneaded mixture which contains an organic fibrous filler, and a dispersing agent. In the composite resin molded body, a content of the organic fibrous filler is at least 5 mass % and at most 70 mass %, and a proportion T of the organic fibrous filler carbonized in the composite resin molded body is equal to or less than 0.1.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: May 19, 2020
    Assignee: Panasonic Corporation
    Inventors: Masateru Mikami, Masashi Hamabe, Takao Kuromiya
  • Patent number: 10584248
    Abstract: A composite resin molded article including: a base resin; and a fibrous filler, wherein the fibrous filler is bent between one end side thereof and another end side thereof, and wherein the angle of the bending is 90 degrees or larger.
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: March 10, 2020
    Assignee: PANASONIC CORPORATION
    Inventors: Masashi Hamabe, Toshifumi Nagino, Takao Kuromiya, Masayoshi Imanishi, Shouma Nishino
  • Publication number: 20190334174
    Abstract: An all-solid battery includes: a positive-electrode-current-collector including metal foil; a positive-electrode-layer formed on the positive-electrode-current-collector and containing at least a positive-electrode-active-material; a negative-electrode-current-collector including a metal foil; a negative-electrode-layer formed on the negative-electrode-current-collector and containing at least a negative-electrode-active-material; and a solid-electrolyte-layer disposed between the positive-electrode-layer and the negative-electrode-layer and containing at least a solid electrolyte having ion conductivity, and the all-solid battery contains a thermoplastic elastomer into which a functional group that adheres at least any of the positive-electrode-active-material and the positive-electrode-current-collector, the positive-electrode-active-material and the solid electrolyte, the positive-electrode-active-materials themselves, the negative-electrode-active-material and the negative-electrode-current-collector, the
    Type: Application
    Filed: April 3, 2017
    Publication date: October 31, 2019
    Inventors: KENTA HASEGAWA, TAKAO KUROMIYA, KAZUYA IWAMOTO, RYO SUGAWARA
  • Patent number: 10367181
    Abstract: A separator includes a separation functional layer and a support layer. The separation functional layer is configured as a denser layer with a smaller pore size and a lower porosity than the support layer. Accordingly, movement of metal foreign objects from the positive electrode plate side to the negative electrode plate side, and precipitation of metal foreign objects on the negative electrode plate side can be inhibited, thereby making it possible to ensure battery performance and safety.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: July 30, 2019
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Yoshinori Shishida, Kenji Date, Takao Kuromiya
  • Publication number: 20190156976
    Abstract: A dust core including an iron-based magnetic powder containing iron as a main component, including: a first magnetic powder which has a first peak in a particle size distribution of the iron-based magnetic powder; and a second magnetic powder which has a second peak corresponding to a particle size larger than a particle size corresponding to the first peak in the particle size distribution of the iron-based magnetic powder, and of which a crystal structure is nanocrystal or amorphous, in which a particle of the first magnetic powder and a particle of the second magnetic powder are in a state of being bonded to each other.
    Type: Application
    Filed: April 4, 2017
    Publication date: May 23, 2019
    Inventors: MITSUO SAITOH, YOSHIE TAKAHASHI, TAKAO KUROMIYA, TOSHIYUKI KOJIMA
  • Publication number: 20190144675
    Abstract: A composite resin molded article including: a base resin; and a fibrous filler, wherein the fibrous filler is bent between one end side thereof and another end side thereof, and wherein the angle of the bending is 90 degrees or larger.
    Type: Application
    Filed: November 8, 2018
    Publication date: May 16, 2019
    Applicant: Panasonic Corporation
    Inventors: Masashi HAMABE, Toshifumi NAGINO, Takao KUROMIYA, Masayoshi IMANISHI, Shouma NISHINO
  • Publication number: 20190013125
    Abstract: Provided herein is a dust core having high mechanical strength and high magnetic permeability. An alloy powder constituting the dust core is also provided. A soft magnetic powder is used that has a plurality of protrusions of 0.1 ?m or more and 5 ?m or less on an alloy powder surface. A dust core is used that contains at least 80 weight % of the soft magnetic alloy powder. A method for producing a soft magnetic powder is used that includes producing an amorphous soft magnetic alloy ribbon by liquid quenching; and pulverizing the amorphous soft magnetic alloy ribbon into a powder having a thickness of 0.1 ?m or more and 40 ?m or less without heat treatment. The pulverization cleaves the amorphous soft magnetic alloy ribbon, and produces a protrusion on a powder surface.
    Type: Application
    Filed: June 26, 2018
    Publication date: January 10, 2019
    Inventors: TOSHIYUKI KOJIMA, MASATO MAEDE, TAKAO KUROMIYA
  • Publication number: 20180336983
    Abstract: A dust core having both high magnetic permeability and high withstand voltage includes a mixed soft magnetic powder containing first ellipsoidal soft magnetic particle having a smooth surface and second ellipsoidal soft magnetic particle having a rough flat surface.
    Type: Application
    Filed: May 11, 2018
    Publication date: November 22, 2018
    Inventors: TAKAO KUROMIYA, KAZUTO FUKUDA
  • Publication number: 20180287209
    Abstract: Provided is a stacked all-solid-state battery including a plurality of all-solid-state batteries, each all-solid-state battery including a cathode layer that has a cathode current collector and a cathode active material layer containing a cathode active material and formed on the cathode current collector, an anode layer that has an anode current collector and an anode active material layer containing an anode active material and formed on the anode current collector, and a solid electrolyte layer disposed between the cathode active material layer and the anode active material layer and containing a solid electrolyte having a lithium ion conductivity. The plurality of all-solid-state batteries are stacked, and the plurality of all-solid-state batteries include two adjacent all-solid-state batteries, the two all-solid-state batteries being configured such that the cathode current collector of one all-solid-state battery is directly joined to the anode current collector of the other all-solid-state battery.
    Type: Application
    Filed: February 1, 2018
    Publication date: October 4, 2018
    Inventors: KENTA HASEGAWA, TAKAO KUROMIYA
  • Publication number: 20180226681
    Abstract: An all-solid-state battery includes a positive-electrode current collector, a positive electrode layer, a negative-electrode current collector, a negative electrode layer, and a solid electrolyte layer. The positive electrode layer is formed on the positive-electrode current collector and includes a positive-electrode material mixture layer which includes at least a positive-electrode active material and a binder. The negative electrode layer is formed on the negative-electrode current collector and includes a negative-electrode material mixture layer which includes at least a negative-electrode active material and a binder. The solid electrolyte layer is disposed between the positive-electrode material mixture layer and the negative-electrode material mixture layer, and includes at least a solid electrolyte having ion conductivity.
    Type: Application
    Filed: January 17, 2018
    Publication date: August 9, 2018
    Inventors: KENTA HASEGAWA, TAKAO KUROMIYA
  • Patent number: 10022743
    Abstract: When a coating material is rolled between rolls to generate a a coating film, and the coating film is transferred onto the coating object, at first, a residual coating material layer based on a residual coating material is formed on each of the surfaces of the rolls, and supply of the coating material and transfer of the coating film are carried out in a state where the residual coating material layer is retained on each of the surfaces of the rolls, thereby suppressing abrasions between the rolls and the coating material.
    Type: Grant
    Filed: July 1, 2015
    Date of Patent: July 17, 2018
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Masateru Mikami, Masashi Hamabe, Takao Kuromiya
  • Publication number: 20170334105
    Abstract: A composite resin molded body includes a base compound resin and a molten-kneaded mixture which contains an organic fibrous filler, and a dispersing agent. In the composite resin molded body, a content of the organic fibrous filler is at least 5 mass % and at most 70 mass %, and a proportion T of the organic fibrous filler carbonized in the composite resin molded body is equal to or less than 0.1.
    Type: Application
    Filed: April 26, 2017
    Publication date: November 23, 2017
    Inventors: MASATERU MIKAMI, MASASHI HAMABE, TAKAO KUROMIYA
  • Patent number: 9825268
    Abstract: The separator of a nonaqueous electrolyte secondary battery is characterized by having a composite nanofiber fiber which is a nanosize fiber that contains two or more kinds of aqueous resins whose melting points are different.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: November 21, 2017
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Masateru Mikami, Toshifumi Nagino, Takao Kuromiya
  • Patent number: 9724726
    Abstract: A high-quality coating film with a uniform thickness is produced without crush of coating particles even in a case where a wet coating material that does not require a step of drying the coating material is used, while maintaining high productivity. By providing a surface layer with an optimized hardness on the surface of a roll used for supply of a mixture coating material, a high-quality coating film with a uniform thickness can be produced, even in a case where a wet coating material that does not require a step of drying the coating material is used, while maintaining high productivity.
    Type: Grant
    Filed: June 22, 2015
    Date of Patent: August 8, 2017
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Masashi Hamabe, Takao Kuromiya, Masateru Mikami
  • Patent number: 9694382
    Abstract: A manufacturing apparatus of a coating film product rolls a mixture coating material by a first roll and transfers the mixture coating material to a coated object in motion to thereby manufacture the coating film product. An arithmetic average roughness Ra on a roll surface of the first roll is higher than a value 0.05 times of a particle size “d10” in which an integrated distribution of particle sizes of particles included in the mixture coating material is 10% and lower than a value 20 times a particle size “d90” in which an integrated distribution is 90%.
    Type: Grant
    Filed: December 26, 2014
    Date of Patent: July 4, 2017
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Masashi Hamabe, Takao Kuromiya, Takashi Tsuruta, Masateru Mikami
  • Publication number: 20170149055
    Abstract: Provided herein, is a lithium-ion secondary battery having desirable charge and discharge cycle characteristics. The negative electrode active material as a constituent material of the negative electrode mixture layer has a flat surface in at least a part of its surface. This can improve the charge and discharge cycle characteristics.
    Type: Application
    Filed: October 6, 2016
    Publication date: May 25, 2017
    Inventors: YOSHIE TAKAHASHI, TAKAO KUROMIYA
  • Publication number: 20170125765
    Abstract: A separator includes a separation functional layer and a support layer. The separation functional layer is configured as a denser layer with a smaller pore size and a lower porosity than the support layer. Accordingly, movement of metal foreign objects from the positive electrode plate side to the negative electrode plate side, and precipitation of metal foreign objects on the negative electrode plate side can be inhibited, thereby making it possible to ensure battery performance and safety.
    Type: Application
    Filed: September 14, 2016
    Publication date: May 4, 2017
    Inventors: Yoshinori SHISHIDA, Kenji DATE, Takao KUROMIYA
  • Publication number: 20160082467
    Abstract: When a coating material is rolled between rolls to generate a a coating film, and the coating film is transferred onto the coating object, at first, a residual coating material layer based on a residual coating material is formed on each of the surfaces of the rolls, and supply of the coating material and transfer of the coating film are carried out in a state where the residual coating material layer is retained on each of the surfaces of the rolls, thereby suppressing abrasions between the rolls and the coating material.
    Type: Application
    Filed: July 1, 2015
    Publication date: March 24, 2016
    Inventors: MASATERU MIKAMI, MASASHI HAMABE, TAKAO KUROMIYA
  • Publication number: 20160052010
    Abstract: A high-quality coating film with a uniform thickness is produced without crush of coating particles even in a case where a wet coating material that does not require a step of drying the coating material is used, while maintaining high productivity. By providing a surface layer with an optimized hardness on the surface of a roll used for supply of a mixture coating material, a high-quality coating film with a uniform thickness can be produced, even in a case where a wet coating material that does not require a step of drying the coating material is used, while maintaining high productivity.
    Type: Application
    Filed: June 22, 2015
    Publication date: February 25, 2016
    Inventors: MASASHI HAMABE, TAKAO KUROMIYA, MASATERU MIKAMI