Patents by Inventor Tatsutoshi Takashima

Tatsutoshi Takashima 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).

  • Opening structure of a fuel tank
    Patent number: 6698613
    Abstract: The present invention is directed to an opening structure of a fuel tank having a fuel tank wall made of plastic layers including at least an outer layer, an inner layer and an intermediate layer, with an opening portion formed to be integral with the fuel tank wall. The opening structure includes a cylindrical portion extended from the fuel tank wall outward thereof to form the opening portion, an overlapping portion extended from an end of the cylindrical portion to enlarge the diameter of the opening portion and bent at a bent portion to form an outer surface parallel with an opening end surface of the opening portion, and a compressed portion with at least a portion of the overlapping portion compressed in a direction perpendicular to the opening end surface of the opening portion.
    Type: Grant
    Filed: March 28, 2002
    Date of Patent: March 2, 2004
    Assignee: FTS Co., Ltd.
    Inventors: Teijiro Goto, Tatsutoshi Takashima, Yojiro Iriyama, Koji Sugiura
  • Opening structure of a fuel tank
    Publication number: 20030029871
    Abstract: The present invention is directed to an opening structure of a fuel tank having a fuel tank wall made of plastic layers including at least an outer layer, an inner layer and an intermediate layer, with an opening portion formed to be integral with the fuel tank wall. The opening structure includes a cylindrical portion extended from the fuel tank wall outward thereof to form the opening portion, an overlapping portion extended from an end of the cylindrical portion to enlarge the diameter of the opening portion and bent at a bent portion to form an outer surface parallel with an opening end surface of the opening portion, and a compressed portion with at least a portion of the overlapping portion compressed in a direction perpendicular to the opening end surface of the opening portion.
    Type: Application
    Filed: March 28, 2002
    Publication date: February 13, 2003
    Inventors: Teijiro Goto, Tatsutoshi Takashima, Yojiro Iriyama, Koji Sugiura
  • Opening structure of a fuel tank
    Publication number: 20020017527
    Abstract: The present invention is directed to an opening structure of a fuel tank having a fuel tank wall made of a plurality of plastic layers with an opening portion formed to be integral with the fuel tank wall. The opening structure includes a cylindrical portion extended from the opening portion outward of the fuel tank wall, an overlapping portion extended from an end of the cylindrical portion to enlarge the diameter of the opening portion and bent at a bent portion to form an outer surface parallel with an opening end surface of the opening portion, and a compressed portion with at least a portion of the overlapping portion compressed in a direction perpendicular to the opening end surface of the opening portion. The opening structure may further include an annular member which is disposed around the opening portion to be in contact with the overlapping portion and the cylindrical portion.
    Type: Application
    Filed: August 6, 2001
    Publication date: February 14, 2002
    Inventors: Teijiro Goto, Takuya Ishikawa, Tatsutoshi Takashima