Patents by Inventor Akira Ootsuka

Akira Ootsuka 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).

  • Immersion nozzle replacement method
    Patent number: 10682696
    Abstract: In the method for replacing an immersion nozzle while pushing out a used immersion nozzle by a new immersion nozzle, in order to minimize leakage of molten steel during the replacement, to enable the use of a shaped joint sealer in a joint interface, and to ensure high sealability, a concave portion is formed on the new immersion nozzle's upper plane so as to include a nozzle hole, and the shaped joint sealer is mounted in this concave portion. The immersion nozzle's upper plane is caused to slide while being pressed to the upper nozzle's lower plane.
    Type: Grant
    Filed: February 7, 2017
    Date of Patent: June 16, 2020
    Assignee: KROSAKIHARMA CORPORATION
    Inventors: Shinichi Fukunaga, Takahiro Kuroda, Tatsuya Oouchi, Takuya Okada, Akira Ootsuka
  • IMMERSION NOZZLE REPLACEMENT METHOD
    Publication number: 20190070661
    Abstract: In the method for replacing an immersion nozzle while pushing out a used immersion nozzle by a new immersion nozzle, in order to minimize leakage of molten steel during the replacement, to enable the use of a shaped joint sealer in a joint interface, and to ensure high sealability, a concave portion is formed on the new immersion nozzle's upper plane so as to include a nozzle hole, and the shaped joint sealer is mounted in this concave portion. The immersion nozzle's upper plane is caused to slide while being pressed to the upper nozzle's lower plane.
    Type: Application
    Filed: February 7, 2017
    Publication date: March 7, 2019
    Applicant: KROSAKIHARIMA CORPORATION
    Inventors: Shinichi FUKUNAGA, Takahiro KURODA, Tatsuya OOUCHI, Takuya OKADA, Akira OOTSUKA
  • Mobile packet communication system
    Patent number: 7672292
    Abstract: A radio base station allocates, when performing a real-time Internet-protocol data communication, up-link radio resources, based on basic information of transmission data, so that the transmission data is transmitted in synchronization with a codec cycle of a mobile communication terminal in a concentrated manner, and notifies a result of allocating the up-link radio resources to the mobile communication terminal as an up-transmission schedule. A mobile communication terminal controls transmission of a radio frame based on the up-transmission schedule.
    Type: Grant
    Filed: May 21, 2004
    Date of Patent: March 2, 2010
    Assignee: Mitsubishi Electric Corporation
    Inventors: Shigeru Uchida, Akira Ootsuka
  • Mobile Packet Communication System
    Publication number: 20070242640
    Abstract: A radio base station allocates, when performing a real-time Internet-protocol data communication, up-link radio resources, based on basic information of transmission data, so that the transmission data is transmitted in synchronization with a codec cycle of a mobile communication terminal in a concentrated manner, and notifies a result of allocating the up-link radio resources to the mobile communication terminal as an up-transmission schedule. A mobile communication terminal controls transmission of a radio frame based on the up-transmission schedule.
    Type: Application
    Filed: May 21, 2004
    Publication date: October 18, 2007
    Inventors: Shigeru Uchida, Akira Ootsuka