Patents by Inventor Alexandra I. Vidal

Alexandra I. Vidal 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: 6051148
    Abstract: A photoreceptor fabrication method involving a photoreceptor substrate having a metal surface, comprising etching the metal surface of the photoreceptor substrate with an etching solution and forming a metal oxide layer on the metal surface with the etching solution, wherein the etching of the metal surface and the forming of the metal oxide layer are conducted in the absence of an electric current.
    Type: Grant
    Filed: March 5, 1998
    Date of Patent: April 18, 2000
    Assignee: Xerox Corporation
    Inventors: Philip G. Perry, William G. Herbert, Alexandra I. Vidal, Gene W. O'Dell, Cornelius Boerman, James E. McNamara
  • Patent number: 6048657
    Abstract: There is disclosed a process for forming a photosensitive imaging member including positioning a substrate and an electrode in an electrolytic solution to form a galvanic cell and electrochemically graining the substrate surface in the absence of an external power source to provide a substrate surface roughness sufficient to substantially suppress the formation of a pattern of light and dark interference fringes upon exposure of the photosensitive imaging member to a light source.
    Type: Grant
    Filed: January 28, 1999
    Date of Patent: April 11, 2000
    Assignee: Xerox Corporation
    Inventors: William G. Herbert, Philip G. Perry, Alexandra I. Vidal
  • Patent number: 5997722
    Abstract: A method for producing a photoreceptor having a substrate subjected to a surface finishing treatment to result in a finished substrate surface, wherein the method includes:(a) analyzing the finished substrate surface by performing a first surface energy reading, a first ellipsometry reading, a first x-ray diffraction reading, and a first profilometry reading;(b) removing electrochemically via an alternating voltage or alternating current a portion of the finished substrate surface, thereby resulting in a cleaned substrate surface;(c) analyzing the cleaned substrate surface by performing a second surface energy reading, a second ellipsometry reading, a second x-ray diffraction reading, and a second profilometry reading, wherein the removing step (b) is accomplished to the extent that the second surface energy reading and the second ellipsometry reading are measurably changed from the first surface energy reading and the first ellipsometry reading, but the second x-ray diffraction reading and the second profilo
    Type: Grant
    Filed: June 24, 1998
    Date of Patent: December 7, 1999
    Assignee: Xerox Corporation
    Inventors: Alexandra I. Vidal, William G. Herbert, Roberto W. Vidal, Gary J. Maier, Jodie L. Morris, James E. McNamara, Gene W. O'Dell