Patents by Inventor Tetsuharu Kawasaki

Tetsuharu Kawasaki 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).

  • COUPLING FITTINGS AND COUPLING STRUCTURE
    Publication number: 20230243448
    Abstract: A coupling fitting comprises a cylindrical first body having a first end portion, a first coupling part having a plurality of first protrusions arranged around the first end portion and having hooks formed thereon, and a first seal material provided on an outer circumference of the first end portion. A gap is formed between the outer circumference and the plurality of first protrusions. When the coupling fitting is coupled with the target fitting, a part of the target fitting is inserted into the gap, the hooks of the plurality of first protrusions engage the target fitting, and the first seal material contacts an inner circumference of the target fitting.
    Type: Application
    Filed: April 7, 2023
    Publication date: August 3, 2023
    Inventors: Tetsuharu KAWASAKI, Kazuyuki TAMADA
  • Unit, manifold, and flow path forming method
    Patent number: 10995894
    Abstract: According to an embodiment, a manifold includes a plurality of units disposed in a liquid flow channel including a hose. The unit includes a hollow tube body, three or more tube stubs communicating the inside of the tube body, and a connection fitting provided with each of the tube stubs and detachably connected to a connection target of same shape. The manifold forms a flow path communicating the tube stubs of the units while the units are detachably connected together with the connection fittings.
    Type: Grant
    Filed: July 12, 2018
    Date of Patent: May 4, 2021
    Assignee: Sakura Rubber Co., Ltd.
    Inventors: Tetsuharu Kawasaki, Kenzou Toshiro, Kazuyuki Tamada, Misao Miyazawa
  • UNIT, MANIFOLD, AND FLOW PATH FORMING METHOD
    Publication number: 20180320809
    Abstract: According to an embodiment, a manifold includes a plurality of units disposed in a liquid flow channel including a hose. The unit includes a hollow tube body, three or more tube stubs communicating the inside of the tube body, and a connection fitting provided with each of the tube stubs and detachably connected to a connection target of same shape. The manifold forms a flow path communicating the tube stubs of the units while the units are detachably connected together with the connection fittings.
    Type: Application
    Filed: July 12, 2018
    Publication date: November 8, 2018
    Applicant: SAKURA RUBBER CO., LTD.
    Inventors: Tetsuharu Kawasaki, Kenzou Toshiro, Kazuyuki Tamada, Misao Miyazawa
  • Control unit of external storage, method for substituting defective block, and storage medium wherein control program for substituting defective block has been stored
    Patent number: 6684344
    Abstract: For controlling an external storage having a block in which a datum is recorded, a control unit includes a read monitoring arrangement for monitoring whether or not failure occurs in reading the datum from the block in a data reading section. When the data reading section succeeds in reading the datum after occurrence of the failure, a data control arrangement controls the datum to be recorded in a substitute block.
    Type: Grant
    Filed: November 1, 1999
    Date of Patent: January 27, 2004
    Assignee: NEC Corporation
    Inventor: Tetsuharu Kawasaki