Patents by Inventor Kazuo Kovama

Kazuo Kovama 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 and an apparatus for the manufacture of a steel sheet
    Patent number: 4016740
    Abstract: A steel sheet, especially a thin one, can be manufactured from a hot rolled coil through heat treating steps by means of positively applying stress to the material. The product has excellent shape and mechanical properties such as drawability and toughness.
    Type: Grant
    Filed: August 22, 1975
    Date of Patent: April 12, 1977
    Assignee: Nippon Steel Corporation
    Inventors: Hisashi Gondo, Hiroshi Takechi, Tsuyoshi Kawano, Hiroaki Masui, Kazuo Kovama