Patents by Inventor Takeshi KOZAI

Takeshi KOZAI 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: 11876260
    Abstract: A fuel cell system includes a fuel cell that generates electricity using a fuel gas and air, an air supply that supplies air to the fuel cell, a temperature meter that measures a temperature of the fuel cell, and a controller. The controller controls the air supply to increase an amount of air to be supplied to the fuel cell in response to the temperature of the fuel cell exceeding one of a plurality of predetermined temperatures.
    Type: Grant
    Filed: February 17, 2020
    Date of Patent: January 16, 2024
    Assignees: KYOCERA Corporation, DAINICHI CO., LTD.
    Inventor: Takeshi Kozai
  • Patent number: 11837760
    Abstract: A fuel cell system includes a fuel cell that generates electricity using a fuel gas and air, an air supply that supplies air to the fuel cell, a temperature meter that measures a temperature of the fuel cell, and a controller. The controller controls the air supply to increase an amount of air to be supplied to the fuel cell in response to the temperature of the fuel cell exceeding one of a plurality of predetermined temperatures.
    Type: Grant
    Filed: February 17, 2020
    Date of Patent: December 5, 2023
    Assignees: KYOCERA Corporation, DAINICHI CO., LTD.
    Inventor: Takeshi Kozai
  • Publication number: 20230044104
    Abstract: A cell stack device includes at least one cell and at least one conductive member. The cell includes an element portion. The conductive member includes a base member containing chromium, a first layer containing an oxide containing zinc, and a zinc spinel portion located at the interface between the base member and the first layer. The first layer includes a first region facing the element portion. A first overlap area ratio, at which the zinc spinel portion located at a first interface between the first region and the base member overlaps with the first interface, is less than a second overlap area ratio, at which the zinc spinel portion located at a second interface between a second region where the surface of the first layer is exposed to an oxidizing atmosphere and the base member overlaps with the second interface.
    Type: Application
    Filed: February 25, 2021
    Publication date: February 9, 2023
    Inventors: Kazuki HIRAO, Takeshi KOZAI, Tetsuro FUJIMOTO
  • Publication number: 20220140364
    Abstract: A fuel cell system includes a fuel cell that generates electricity using a fuel gas and air, an air supply that supplies air to the fuel cell, a temperature meter that measures a temperature of the fuel cell, and a controller. The controller controls the air supply to increase an amount of air to be supplied to the fuel cell in response to the temperature of the fuel cell exceeding one of a plurality of predetermined temperatures.
    Type: Application
    Filed: February 17, 2020
    Publication date: May 5, 2022
    Inventor: Takeshi KOZAI
  • Patent number: 10236515
    Abstract: An electrically conductive member of the present disclosure includes a base member containing chromium (Cr), and a first layer provided on a surface of the base member and containing chromium(III) oxide (Cr2O3). The first layer also contains titanium (Ti).
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: March 19, 2019
    Assignee: KYOCERA Corporation
    Inventors: Takeshi Kozai, Kazunari Sugihara, Tetsuro Fujimoto
  • Publication number: 20190067708
    Abstract: An electroconductive member may include a substrate and a cover layer covering all the surfaces of the substrate and including zinc, manganese, and cobalt. The cover layer may have a zirconium oxide content of 5000 ppm or less. A cell stack may include a plurality of SOFCs that are electrically connected with the electroconductive member. A cell module may include the cell stack accommodated in a container. A cell module storage device may include the cell module and an accessory to operate the cell module that are accommodated in the exterior case.
    Type: Application
    Filed: January 27, 2017
    Publication date: February 28, 2019
    Inventor: Takeshi KOZAI
  • Publication number: 20170237076
    Abstract: An electrically conductive member of the present disclosure includes a base member containing chromium (Cr), and a first layer provided on a surface of the base member and containing chromium(III) oxide (Cr2O3). The first layer also contains titanium (Ti).
    Type: Application
    Filed: November 6, 2015
    Publication date: August 17, 2017
    Inventors: Takeshi KOZAI, Kazunari SUGIHARA, Tetsuro FUJIMOTO