Patents by Inventor Kenneth W. Fulton

Kenneth W. Fulton 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).

  • Superpolishing agent, process for polishing hard materials, and polished hard materials
    Patent number: 5584898
    Abstract: A process for superpolishing hard ceramic substrates, and super polished substrates having surface finishes below about 20 angstroms RMS. In the first embodiment, the process comprises applying a pitch to a lap tool and forming channels in the pitch. The pitch is wetted with a polishing compound comprising colloidal alumina and powder of a substance harder than that being polished. The substrate is brought into contact with the wetted pitch, and relative motion is applied thereto to polish the substrate. In a second embodiment, microporous pads are used which absorb the polishing compound and contact the substrate to polish the same.
    Type: Grant
    Filed: October 26, 1994
    Date of Patent: December 17, 1996
    Assignee: Planar Technologies Inc.
    Inventor: Kenneth W. Fulton
  • Superpolishing agent, process for polishing hard ceramic materials, and polished hard ceramics
    Patent number: 5149338
    Abstract: A process for superpolishing hard ceramic substrates, and super polished substrates having surface finishes below about 20 angstroms RMS. The process comprises applying a pitch to a lap tool and forming channels in the pitch. The pitch is wetted with a polishing compound comprising colloidal alumina and powder of a substance harder than that being polished. The substrate is brought into contact with the wetted pitch, and a relative motion is applied thereto to polish the substrate.
    Type: Grant
    Filed: July 22, 1991
    Date of Patent: September 22, 1992
    Inventor: Kenneth W. Fulton