Patents by Inventor Toshiya Eto

Toshiya Eto 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).

  • Pipe joint with enlarged metal pipe and method for manufacturing same
    Patent number: 6328351
    Abstract: A pipe joint is comprised of a joint base member having an opening for a fluid conduit, a flange member fixed with the joint base member and a metal pipe having a first enlarged portion inserted into the opening, a second enlarged portion placed in an installation bore of the flange and a bulging portion pressed against a second end surface of the flange member. The bulging portion is formed by making the outer surface of the pipe swell at the same time when the pipe is inserted into the installation bore and enlarged by a enlargement punch to form the second enlarged portion.
    Type: Grant
    Filed: July 19, 1999
    Date of Patent: December 11, 2001
    Assignee: Denso Corporation
    Inventors: Hisao Kato, Toshiya Eto, Ryoichi Izumi