Patents by Inventor Tetsuhito Akaishi

Tetsuhito Akaishi 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).

  • Method of manufacturing a segmented metalized gasket
    Patent number: 8359742
    Abstract: A production method of an annular gasket comprising a metal base and an elastic seal layer laminated to each side thereof, comprising the steps of subjecting a metal sheet to punching out process to obtain a plurality of divided constituent members for the metal base, each of the divided constituent member having a slightly wider width than a given gasket width and a predetermined shape for constituting an annular shape of the given gasket, butting these constituent members to temporarily configure the annular shape and bonding the butt parts to each other by welding to form an annular object, subsequently laminating an elastic compound material to each side of the annular object to form elastic seal layers after applying pressurizing process to the annular object, and punching a given shape out of the annular object to obtain the annular gasket.
    Type: Grant
    Filed: November 29, 2006
    Date of Patent: January 29, 2013
    Assignee: Uchiyama Manufacturing Corp.
    Inventors: Takashi Nakamura, Hiroshi Izuta, Tetsuhito Akaishi
  • Process for Producing Gasket and Gasket
    Publication number: 20090250884
    Abstract: A production method of an annular gasket comprising a metal base and an elastic seal layer laminated to each side thereof, comprising the steps of subjecting a metal sheet to punching out process to obtain a plurality of divided constituent members for the metal base, each of the divided constituent member having a slightly wider width than a given gasket width and a predetermined shape for constituting an annular shape of the given gasket, butting these constituent members to temporarily configure the annular shape and bonding the butt parts to each other by welding to form an annular object, subsequently laminating an elastic compound material to each side of the annular object to form elastic seal layers after applying pressurizing process to the annular object, and punching a given shape out of the annular object to obtain the annular gasket.
    Type: Application
    Filed: November 29, 2006
    Publication date: October 8, 2009
    Applicant: Uchiyama Manufacaturing Corp.
    Inventors: Takashi Nakamura, Hiroshi Izuta, Tetsuhito Akaishi