Patents by Inventor Keita SUGIHARA

Keita SUGIHARA 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: 11797402
    Abstract: A storage system with high availability is provided. The storage system is designed to be provided with: a generation unit that generates information of an association volume which is associated with each volume, on the basis of information of each volume created at each of a plurality of storage devices designated from two or more sites; and an instruction unit that issues an instruction to each storage device, at which each volume is created, to connect each volume associated with the association volume and a compute node which operates a container, on the basis of a request for activation of the container for which the information of the association volume generated by the generation unit is designated.
    Type: Grant
    Filed: February 16, 2023
    Date of Patent: October 24, 2023
    Assignee: HITACHI, LTD.
    Inventors: Keita Sugihara, Keisuke Matsumoto, Genki Matsuda
  • Patent number: 11749971
    Abstract: A metallic shell for a spark plug which metallic shell achieves suppressed elution of hexavalent chromium, and a spark plug including the metallic shell. The spark plug has a metallic shell. The metallic shell includes a tubular metallic shell body; a metal plating layer provided on a surface of the metallic shell body; and a chromium-containing chemical conversion coating layer provided to cover the metal plating layer. The chemical conversion coating layer has a zirconium component content of 0.1 mass % or more.
    Type: Grant
    Filed: February 15, 2023
    Date of Patent: September 5, 2023
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Takahiro Sanda, Keita Sugihara, Noriyasu Hasegawa, Yohei Kozakai
  • Publication number: 20230268722
    Abstract: A metallic shell for a spark plug which metallic shell achieves suppressed elution of hexavalent chromium, and a spark plug including the metallic shell. The spark plug has a metallic shell. The metallic shell includes a tubular metallic shell body; a metal plating layer provided on a surface of the metallic shell body; and a chromium-containing chemical conversion coating layer provided to cover the metal plating layer. The chemical conversion coating layer has a zirconium component content of 0.1 mass % or more.
    Type: Application
    Filed: February 15, 2023
    Publication date: August 24, 2023
    Applicant: NGK SPARK PLUG CO., LTD.
    Inventors: Takahiro SANDA, Keita SUGIHARA, Noriyasu HASEGAWA, Yohei KOZAKAI
  • Patent number: 11734133
    Abstract: A cluster system has nodes connected by a first network, including a master node, a first node performing an IO request with respect to a first volume of a storage device capable of including a plurality of volumes through a second network, and a second node taking over processing of the first node at the time of a failure of the first node. When a failure of the first network occurs in the first node, the master node transmits a connection release instruction through the second network. When the connection release instruction is received, the storage device releases the connection between the first node and the first volume, and updates connection state management information for managing such a connection state. The first node acquires the connection state to be managed through the second network, and executes post-processing relevant to the first volume that is associated with the connection release instruction.
    Type: Grant
    Filed: August 17, 2021
    Date of Patent: August 22, 2023
    Assignee: HITACHI, LTD.
    Inventors: Keita Sugihara, Keisuke Matsumoto, Yuki Kuroda
  • Publication number: 20220129357
    Abstract: A cluster system has nodes connected by a first network, including a master node, a first node performing an IO request with respect to a first volume of a storage device capable of including a plurality of volumes through a second network, and a second node taking over processing of the first node at the time of a failure of the first node. When a failure of the first network occurs in the first node, the master node transmits a connection release instruction through the second network. When the connection release instruction is received, the storage device releases the connection between the first node and the first volume, and updates connection state management information for managing such a connection state. The first node acquires the connection state to be managed through the second network, and executes post-processing relevant to the first volume that is associated with the connection release instruction.
    Type: Application
    Filed: August 17, 2021
    Publication date: April 28, 2022
    Inventors: Keita SUGIHARA, Keisuke MATSUMOTO, Yuki KURODA