Patents by Inventor Thomas Carl Clarke

Thomas Carl Clarke 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).

  • Embedded dual coil fabrication process
    Patent number: 6338939
    Abstract: A read/write head is provided with an embedded planar dual coil write structure. The head includes generally parallel shield, shield/pole, and pole layers. The shield/pole layer abuts a generally coplanar planarization layer in one embodiment. A circuitous recess is defined in the shield/pole and planarization layer, spanning the junction twice and encircling a central hub of adjoining shield/pole and planarization layer material. A write structure is located in the recess, with the shield/pole layer, planarization layer, and embedded write structure forming a substantially flat surface for building the pole layer. The write structure includes first and second substantially co-planar multi-turn flat coils, where turns of the first write coil are interspersed with turns of the second write coil. The first and second write coils reside in the circuitous recess, winding around the central hub. An insulating material separates the first and second coils.
    Type: Grant
    Filed: August 24, 2000
    Date of Patent: January 15, 2002
    Assignee: International Business Machines Corporation
    Inventors: Thomas Carl Clarke, Robert Edward Fontana, Jr., Richard Hsiao, Eric James Lee, Hugo Alberto Emilio Santini
  • ADHESIVE POLYMER AND METHOD OF USE
    Publication number: 20010005741
    Abstract: An adhesive composition includes a polyphenolic polymer which has a first repeating unit and a second repeating unit of the formula: 1
    Type: Application
    Filed: December 23, 1998
    Publication date: June 28, 2001
    Inventors: GREGORY BREYTA, THOMAS CARL CLARKE, DANIEL JOSEPH DAWSON, RONALD P. ESCH, ALFRED FLOYD RENALDO
  • Antireflective polymer and method of use
    Patent number: 6251562
    Abstract: An antireflective composition includes a polyphenolic polymer which has a first repeating unit and a second repeating unit of the formula: wherein each of R1, R2, R3, R4, and R5 is individually a hydroxy group, hydrogen or an azo dye and only one of R1, R2, R3, R4, and R5 is a hydroxy group.
    Type: Grant
    Filed: December 23, 1998
    Date of Patent: June 26, 2001
    Assignee: International Business Machines Corporation
    Inventors: Gregory Breyta, Thomas Carl Clarke, Daniel Joseph Dawson, Ronald P. Esch, Alfred Floyd Renaldo
  • Embedded dual coil planar structure
    Patent number: 6191918
    Abstract: A read/write head is provided with an embedded planar dual coil write structure. The head includes generally parallel shield, shield/pole, and pole layers. The shield/pole layer abuts a generally coplanar planarization layer in one embodiment. A circuitous recess is defined in the shield/pole and planarization layer, spanning the junction twice and encircling a central hub of adjoining shield/pole and planarization layer material. A write structure is located in the recess, with the shield/pole layer, planarization layer, and embedded write structure forming a substantially flat surface for building the pole layer. The write structure includes first and second substantially co-planar multi-turn flat coils, where turns of the first write coil are interspersed with turns of the second write coil. The first and second write coils reside in the circuitous recess, winding around the central hub. An insulating material separates the first and second coils.
    Type: Grant
    Filed: October 23, 1998
    Date of Patent: February 20, 2001
    Assignee: International Business Machines Corporation
    Inventors: Thomas Carl Clarke, Robert Edward Fontana, Jr., Richard Hsiao, Eric James Lee, Hugo Alberto Emilio Santini