Patents by Inventor Tsutomu Igari

Tsutomu Igari 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).

  • Structure of liner and primary containment vessel using its structure
    Patent number: 6688057
    Abstract: The present invention aims to reduce the manufacturing work load of a structure of a liner of a concrete wall. A plurality of liner anchors 10 is constructed longitudinally to one surface of a liner 11, and a plurality of flat bars 14 is constructed transversely to the other surface of the liner 11. Concrete for a reinforced concrete wall is installed using the liner 11 reinforced longitudinally and transversely by the liner anchors 10 and the flat bars 14 as a formwork, and the liner is constructed to the concrete wall by burying the liner anchors 10 to the concrete wall. Thereafter, the flat bars 11 are removed from the liner 14, according to need.
    Type: Grant
    Filed: August 23, 2001
    Date of Patent: February 10, 2004
    Assignees: Hitachi, Ltd., Hitachi Engineering Co., Ltd.
    Inventors: Ayako Suzuki, Shigeru Nanba, Tsutomu Igari
  • Structure of liner and primary containment vessel using its structure
    Publication number: 20020073644
    Abstract: The present invention aims to reduce the manufacturing work load of a structure of a liner of a concrete wall. A plurality of liner anchors 10 is constructed longitudinally to one surface of a liner 11, and a plurality of flat bars 14 is constructed transversely to the other surface of the liner 11. Concrete for a reinforced concrete wall is installed using the liner 11 reinforced longitudinally and transversely by the liner anchors 10 and the flat bars 14 as a formwork, and the liner is constructed to the concrete wall by burying the liner anchors 10 to the concrete wall. Thereafter, the flat bars 11 are removed from the liner 14, according to need.
    Type: Application
    Filed: August 23, 2001
    Publication date: June 20, 2002
    Applicant: HITACHI, LTD.
    Inventors: Ayako Suzuki, Shigeru Nanba, Tsutomu Igari