Patents by Inventor Jose G. Gonzales

Jose G. Gonzales 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).

  • Grained and anodized aluminum substrate for lithographic printing plates
    Patent number: 5834129
    Abstract: The present invention relates to supports for lithographic printing plates and to a process for producing the same. In particular, the invention relates to aluminum plates having an electrochemically grained and anodized surface which is has a smooth, shiny surface and hence greater image contrast when a lithographic image is formed thereon. The surface has a substantially uniform surface topography comprising peaks and valleys and surface roughness parameters wherein Ra ranges from about 0.10 to about 0.50 microns, Rz ranges from about 0.00 to about 5.00 microns, Rt ranges from about 0.00 to about 6.00 microns and Rp ranges from about 0.00 to about 4.00 microns. The surface preferably has tristimulus color coordinate values wherein L ranges from about 35.00 to about 75.00, a ranges from about -4.00 to about +4.00 and b ranges from about -4.00 to about +4.00.
    Type: Grant
    Filed: November 6, 1997
    Date of Patent: November 10, 1998
    Assignee: Bayer Corporation
    Inventors: Major S. Dhillon, Gerhard Sprintschnik, Jose G. Gonzales
  • Lithographic printing plates having specific grained and anodized aluminum substrate
    Patent number: 5728503
    Abstract: The present invention relates to supports for lithographic printing plates and to a process for producing the same. In particular, the invention relates to aluminum plates having an electrochemically grained and anodized surface which is has a smooth, shiny surface and hence greater image contrast when a lithographic image is formed thereon. The surface has a substantially uniform surface topography comprising peaks and valleys and surface roughness parameters wherein Ra ranges from about 0.10 to about 0.50 microns, Rz ranges from about 0.00 to about 5.00 microns, Rt ranges from about 0.00 to about 6.00 microns and Rp ranges from about 0.00 to about 4.00 microns. The surface preferably has tristimulus color coordinate values wherein L ranges from about 35.00 to about 75.00, a ranges from about -4.00 to about +4.00 and b ranges from about -4.00 to about +4.00.
    Type: Grant
    Filed: December 4, 1995
    Date of Patent: March 17, 1998
    Assignee: Bayer Corporation
    Inventors: Major S. Dhillon, Gerhard Sprintschnik, Jose G. Gonzales