Patents by Inventor Dan Dawson

Dan Dawson 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: 7309754
    Abstract: An encapsulant fluid is provided comprising a mixture of a diene-containing compound and a dienophilic compound. At least one of the diene-containing and the dienophilic compounds is protected so that the compounds do not substantially react with each other at room temperature. The diene-containing and the dienophilic compounds undergo a reversible Diels-Alder polymerization reaction at a polymerization temperature above room temperature to form a solid debondable polymeric encapsulant. Also provided are methods for forming slider assemblies and methods for patterning a slider surface using the encapsulant.
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: December 18, 2007
    Assignee: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Phillip Joe Brock, Michael W. Chaw, Dan Dawson, Craig Hawker, James L. Hedrick, Teddie P. Magbitang, Dennis McKean, Robert D. Miller, Richard I. Palmisano, Willi Volksen
  • Patent number: 7077970
    Abstract: A slider assembly is provided comprising a plurality of sliders bonded by a debondable solid encapsulant. The solid encapsulant is comprised of a polymer prepared by polymerizing a mixture of first and second monomers in a nonstoichiometric ratio effective to render the encapsulant debondable. Each slider has a surface that is free from the encapsulant. The encapsulant-free surfaces are coplanar to each other. Also provided are methods for forming the assembly and methods for patterning a slider surface using the encapsulant.
    Type: Grant
    Filed: September 25, 2003
    Date of Patent: July 18, 2006
    Assignee: Hitachi Global Storage Netherlands, B.V.
    Inventors: Nicholas I. Buchan, Michael W. Chaw, Sean Clemenza, Dan Dawson, Craig Hawker, James L. Hedrick, Wesley L. Hillman, Teddie P. Magbitang, Willi Volksen, Dennis McKean, Robert D. Miller
  • Publication number: 20050243469
    Abstract: A slider assembly is provided comprising a plurality of sliders bonded by a debondable solid encapsulant comprised of different first and second polymers The solid encapsulant is comprised of a polymer prepared by polymerizing an encapsulant fluid comprising a homogeneous mixture of first and second constituents. The first constituent is comprised of a first monomer suitable for in situ polymerization to form the first polymer. The second constituent is comprised of the second polymer or a second monomer suitable for in situ polymerization to form the second polymer. The first constituent does not substantially react with the second constituent. Each slider has a surface that is free from the encapsulant. The encapsulant-free surfaces are coplanar to each other. Also provided are methods for forming the assembly and methods for patterning a slider surface using the encapsulant.
    Type: Application
    Filed: April 29, 2004
    Publication date: November 3, 2005
    Inventors: Michael Chaw, Dan Dawson, Craig Hawker, James Hedrick, Wesley Hillman, Teddie Magbitang, Dennis McKean, Robert Miller, Willi Volksen
  • Publication number: 20050068680
    Abstract: A slider assembly is provided comprising a plurality of sliders bonded by a debondable solid encapsulant. The solid encapsulant is comprised of a polymer prepared by polymerizing a mixture of first and second monomers in a nonstoichiometric ratio effective to render the encapsulant debondable. Each slider has a surface that is free from the encapsulant. The encapsulant-free surfaces are coplanar to each other. Also provided are methods for forming the assembly and methods for patterning a slider surface using the encapsulant.
    Type: Application
    Filed: September 25, 2003
    Publication date: March 31, 2005
    Inventors: Nicholas Buchan, Michael Chaw, Sean Clemenza, Dan Dawson, Craig Hawker, James Hedrick, Wesley Hillman, Teddie Magbitang, Willi Volksen, Dennis McKean, Robert Miller
  • Publication number: 20050067373
    Abstract: An encapsulant fluid is provided comprising a mixture of a diene-containing compound and a dienophilic compound. At least one of the diene-containing and the dienophilic compounds is protected so that the compounds do not substantially react with each other at room temperature. The diene-containing and the dienophilic compounds undergo a reversible Diels-Alder polymerization reaction at a polymerization temperature above room temperature to form a solid debondable polymeric encapsulant. Also provided are methods for forming slider assemblies and methods for patterning a slider surface using the encapsulant.
    Type: Application
    Filed: September 26, 2003
    Publication date: March 31, 2005
    Inventors: Phillip Brock, Michael Chaw, Dan Dawson, Craig Hawker, James Hedrick, Teddie Magbitang, Dennis McKean, Robert Miller, Richard Palmisano, Willi Volksen
  • Patent number: 5094465
    Abstract: A game apparatus wherein a plural series of cards provides excessively greater clues relative to a particular configuration. Points are awarded based upon solving a random shape by the clues at a greater rate than upon earlier solving of the clues. The apparatus includes a game board for positioning the cards in relationship to the clue cards utilized, a clue card holder, and a viewing rack positioning the clue cards of each series with sequentially positioned doors for revealing sequentially the series of clue cards. An alternative third compartment of the viewing rack is provided wherein the final clue card of a series of clue cards is positioned and opaque slots are selectively removed to reveal various portions of the clue card to provide an individual an alternative manner of guessing a predetermined shape with a greater point total awarded with a lesser number of clues revealed of the final clue card of the series.
    Type: Grant
    Filed: August 30, 1990
    Date of Patent: March 10, 1992
    Inventor: Dan Dawson