Patents by Inventor Chouji Kawabata

Chouji Kawabata 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).

  • Pressure vessel having pressure releasing mechanism
    Patent number: 4721224
    Abstract: A can has a cylindrical metal can body having a bottom and a metal upper lid double-seamed thereto. It also has a recess for the engagement of a seaming chuck which is formed in the upper surface of the upper lid, and which is made to project into the interior of the can body by the seaming to make a cavity thereinto. The bottom of the recess has a plurality of score lines extending in the circumferential direction.
    Type: Grant
    Filed: December 31, 1986
    Date of Patent: January 26, 1988
    Assignee: Nittoseiki Kabushiki Kaisha
    Inventor: Chouji Kawabata