Patents by Inventor Jose Manuel Rubianes

Jose Manuel Rubianes 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).

  • Patent number: 5645656
    Abstract: A method is provided for manufacturing a low carbon steel having good formability and good resistance to indentation. In this method, an ingot of low carbon steel is first hot-rolled, followed by a cold rolling of the resulting hot-rolled sheet. The cold-rolled sheet is then subjected to a first high temperature annealing to cause recrystallization and dissolution of some of the carbon contained in the steel. Next, the sheet is subjected to a second low temperature annealing to cause to dissolved carbon to precipitate as iron carbide. Finally, the sheet is work-hardened by a minor cold-rolling operation.
    Type: Grant
    Filed: September 13, 1995
    Date of Patent: July 8, 1997
    Assignee: Sollac
    Inventor: Jose Manuel Rubianes