Patents by Inventor Takakazu Hirata

Takakazu Hirata 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).

  • Preservation container for food and the like
    Patent number: 6513659
    Abstract: A preservation container for food and the like comprising a sealable container main body (2), to which a lid (3) is attached, an opening (5) connecting the inside and the outside is provided on the lid (3), and a gas non-permeable sheet (6) having a vent hole (7) at a position offset to the opening (5) is arranged to cover the opening (5). When the pressure inside the container is reduced, the sheet (6) is curved toward the inside at a part corresponding to the opening (5) and is adhered and retained on the outer surface of the lid (3).
    Type: Grant
    Filed: October 2, 2000
    Date of Patent: February 4, 2003
    Assignees: Santoku Inc., Mitsui Kanko Trading Corporation
    Inventors: Akira Ogura, Takakazu Hirata, Moriya Tanaka