Patents by Inventor Francis Emmi

Francis Emmi 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).

  • Process for removing contaminant
    Patent number: 4654115
    Abstract: Contaminant is removed from holes by etching in a gaseous plasma by first removing contaminant from the vicinity of the edges of the hole. Next, a mask is provided in the vicinity of the edges to prevent etching by contacting with a gaseous plasma which is different from the gaseous plasma employed in the first etching step. The holes are then etched in a gaseous plasma to remove contaminant from the interior of the holes in the vicinity of the center of the holes, whereby the mask protects the edges from being etched.
    Type: Grant
    Filed: April 8, 1986
    Date of Patent: March 31, 1987
    Assignee: International Business Machines Corporation
    Inventors: Frank D. Egitto, Francis Emmi, Walter E. Mlynko, Robin A. Susko
  • Electrochromic printing
    Patent number: 4444626
    Abstract: An electrochromic printable medium which includes a substrate coated with certain organic compounds and with the reduced form of an oxidizing agent; and use thereof for electrochromic printing.
    Type: Grant
    Filed: January 21, 1983
    Date of Patent: April 24, 1984
    Assignee: International Business Machines Corporation
    Inventors: William E. Bernier, Francis Emmi, Edmond O. Fey, Paul L. Gendler, Robert J. Twieg