Patents by Inventor Takaji Igami

Takaji Igami 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).

  • Heat exchanger tank-pipe connection structure
    Patent number: 7229103
    Abstract: A short cylindrical connection cup is fitted and brazed to a pipe fitting port of a metallic tank. Afterward, the extremity of a resin pipe is inserted via an O-ring into the connection cup, and a caulking claw of the connection cup is caulked to press a flanged portion of the resin pipe.
    Type: Grant
    Filed: June 25, 2002
    Date of Patent: June 12, 2007
    Assignee: T. Rad Co., Ltd
    Inventor: Takaji Igami
  • Heat exchanger tank-pipe connection structure
    Publication number: 20030234540
    Abstract: A short cylindrical connection cup is fitted and brazed to a pipe fitting port of a metallic tank. Afterward, the extremity of a resin pipe is inserted via an O-ring into the connection cup, and a caulking claw of the connection cup is caulked to press a flanged portion of the resin pipe.
    Type: Application
    Filed: June 25, 2002
    Publication date: December 25, 2003
    Applicant: Toyo Radiator Co., Ltd.
    Inventor: Takaji Igami
  • Structure of heat exchanger tank
    Patent number: 6662863
    Abstract: A tank body 3 is formed in the shape of an elongated groove having an intermediate first slit 5 disposed at its middle portion in the longitudinal direction and having a pair of end first slits 5a disposed at its opposite ends. A reinforcement member 9 is fitted in the first slit 5 at the middle portion, and a pair of reinforcement side lids 11 are fitted correspondingly in the pair of end first slits 5a at opposite ends. The reinforcement member 9 and the reinforcement side lids 11 are formed with intermediate second slits 8 and end second slits 8a, respectively, which in cooperation serve to clamp the sidewalls 2 of the tank body 3. The opening of the tank body 3 is fitted to the groove-shaped tube plate 4 such that their connections are joined together by brazing or other joining means.
    Type: Grant
    Filed: July 2, 2002
    Date of Patent: December 16, 2003
    Assignee: Toyo Radiator Co., Ltd.
    Inventors: Takaji Igami, Kiyoaki Horie
  • Structure of heat exchanger tank
    Publication number: 20030019615
    Abstract: A tank body 3 is formed in the shape of an elongated groove having an intermediate first slit 5 disposed at its middle portion in the longitudinal direction and having a pair of end first slits 5a disposed at its opposite ends. A reinforcement member 9 is fitted in the first slit 5 at the middle portion, and a pair of reinforcement side lids 11 are fitted correspondingly in the pair of end first slits 5a at opposite ends. The reinforcement member 9 and the reinforcement side lids 11 are formed with intermediate second slits 8 and end second slits 8a, respectively, which in cooperation serve to clamp the sidewalls 2 of the tank body 3. The opening of the tank body 3 is fitted to the groove-shaped tube plate 4 such that their connections are joined together by brazing or other joining means.
    Type: Application
    Filed: July 2, 2002
    Publication date: January 30, 2003
    Applicant: Toyo Radiator Co., Ltd.
    Inventors: Takaji Igami, Kiyoaki Horie