Patents by Inventor Tetsuo Hosono

Tetsuo Hosono 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).

  • Metal surface treatment agents, methods of treating metal surfaces and pre-coated steel substrates
    Patent number: 6361872
    Abstract: The present invention provides metal surface treatment agents and metal surface treatment methods which can form a high anticorrosion coating without use of hexavalent chromium compounds which are a cause of environmental pollution. In the present invention, a metal surface is coated with a metal surface treatment agent made of a composition containing a compound containing at least one or more mercapto groups per molecule and, depending upon need, a curing agent, curing catalyst and/or silica and the coating of the metal surface treatment agent is heat-treated.
    Type: Grant
    Filed: May 14, 1999
    Date of Patent: March 26, 2002
    Assignee: Metal Coatings International Inc.
    Inventors: Tetsuo Hosono, Michiaki Nakazato, Tadayoshi Inoue