Patents by Inventor Daniel D. Ramar

Daniel D. Ramar 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).

  • Roller that avoids substrate slippage
    Patent number: 6918864
    Abstract: A roller assembly is provided. The roller assembly comprises a groove that the includes two opposing surfaces. The roller assembly comprises either frictional surfaces positioned along the groove, or O-ring(s) coupled to the groove. The frictional surfaces may be a plurality of holes at spaced intervals along the opposing surfaces of the groove, a plurality of holes, each hole sized so as to extend into the two opposing surfaces, at spaced intervals along the opposing surfaces of the groove, or may be a bead-blasted surface or a knurled surface positioned along the opposing surfaces of the groove.
    Type: Grant
    Filed: May 30, 2000
    Date of Patent: July 19, 2005
    Assignee: Applied Materials, Inc.
    Inventors: Brian J. Brown, Michael Sugarman, Makoto Inagawa, Daniel D. Ramar, Alexander Lerner