Patents by Inventor Hirotsugu Hirano

Hirotsugu Hirano 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: 11946554
    Abstract: To provide a fluid contact member whose corrosion resistance is particularly further improved than that in the related art. In order to solve this problem, a fluid contact member 10 includes a fluid contact portion 1 configured to be in contact with a fluid, the fluid contact portion 1 has a cobalt-based alloy phase 2 having a dendrite, and a compound phase 3 formed in an arm space of the dendrite and containing chromium carbide, and among a plurality of secondary arms 5 extending from one primary arm 4 constituting the dendrite, an average interval between adjacent secondary arms 5 is 5 ?m or less. At this time, the average interval is preferably 3 ?m or less. Further, the compound phase 3 is preferably formed discontinuously in the dendrite arm space.
    Type: Grant
    Filed: November 6, 2019
    Date of Patent: April 2, 2024
    Assignee: HITACHI-GE NUCLEAR ENERGY, LTD.
    Inventors: Hirotsugu Kawanaka, Yoshihisa Kiyotoki, Sei Hirano, Daisuke Hirasawa, Junya Kaneda
  • Patent number: 10275330
    Abstract: The information processing apparatus includes a processor and components connected to the processor. In this processor, a failure occurring in any one of the processor and the components connected to the processor itself is recorded in a system space accessible in a system management mode, and an interrupt handler is notified of the occurrence of the failure by an interrupt. The program causes a management computer managing the information processing apparatus to execute shifting the processor to the system management mode, setting information indicating a pseudo failure in the system space, shifting the processor to a non system management mode from the system management mode after setting, and causing the processor to generate the interrupt corresponding to the pseudo failure.
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: April 30, 2019
    Assignee: FUJITSU LIMITED
    Inventor: Hirotsugu Hirano
  • Publication number: 20170132102
    Abstract: The information processing apparatus includes a processor and components connected to the processor. In this processor, a failure occurring in any one of the processor and the components connected to the processor itself is recorded in a system space accessible in a system management mode, and an interrupt handler is notified of the occurrence of the failure by an interrupt. The program causes a management computer managing the information processing apparatus to execute shifting the processor to the system management mode, setting information indicating a pseudo failure in the system space, shifting the processor to a non system management mode from the system management mode after setting, and causing the processor to generate the interrupt corresponding to the pseudo failure.
    Type: Application
    Filed: October 20, 2016
    Publication date: May 11, 2017
    Applicant: FUJITSU LIMITED
    Inventor: Hirotsugu HIRANO
  • Patent number: 9222695
    Abstract: A heat exchange ventilator includes a plurality of heat exchanger elements provided with a heat-exchanger exhaust airflow path and a heat-exchanger intake airflow path. Exhaust airflow and intake airflow are guided to pass through one of the plurality of heat exchanger elements, and the exhaust airflow and the intake airflow are switched to the next heat exchanger element in a sequential order when a state of the heat exchanger element comes to a predetermined condition set based on adverse influences of ice formation inside a heat-exchanger exhaust airflow path. The structure prevents the heat exchanger element from icing to avoid the adverse influences, thereby making it capable of exerting the fundamental heat exchanging and ventilating function continuously.
    Type: Grant
    Filed: May 14, 2008
    Date of Patent: December 29, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Norihiko Hasegawa, Hirotsugu Hirano
  • Publication number: 20110189937
    Abstract: A heat exchange ventilator includes a plurality of heat exchanger elements provided with a heat-exchanger exhaust airflow path and a heat-exchanger intake airflow path. Exhaust airflow and intake airflow are guided to pass through one of the plurality of heat exchanger elements, and the exhaust airflow and the intake airflow are switched to the next heat exchanger element in a sequential order when a state of the heat exchanger element comes to a predetermined condition set based on adverse influences of ice formation inside a heat-exchanger exhaust airflow path. The structure prevents the heat exchanger element from icing to avoid the adverse influences, thereby making it capable of exerting the fundamental heat exchanging and ventilating function continuously.
    Type: Application
    Filed: May 14, 2008
    Publication date: August 4, 2011
    Applicant: Panasonic Corporation
    Inventors: Norihiko Hasegawa, Hirotsugu Hirano