Patents by Inventor Patrick Michael McCaffrey

Patrick Michael McCaffrey 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).

  • Powder for disks
    Patent number: 7201639
    Abstract: A plurality of disks include a first disk and a second disk stacked upon the first disk. The first disk and the second disk are each formed from glass or glass-ceramic. A powder is disposed between the first disk and the second disk. The powder is selected from the group including calcium carbonate, calcium magnesium carbonate, calcium phosphate, magnesium carbonate, magnesium borate, magnesium oxide, magnesium phosphate, and clay.
    Type: Grant
    Filed: April 24, 2001
    Date of Patent: April 10, 2007
    Assignee: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Patrick Michael McCaffrey, Douglas Howard Piltingsrud
  • Powder for disks
    Publication number: 20030092362
    Abstract: A plurality of disks include a first disk and a second disk stacked upon the first disk. The first disk and the second disk are each formed from glass or glass-ceramic. A powder is disposed between the first disk and the second disk. The powder is selected from the group including calcium carbonate, calcium magnesium carbonate, calcium phosphate, magnesium carbonate, magnesium borate, magnesium oxide, magnesium phosphate, and clay.
    Type: Application
    Filed: April 24, 2001
    Publication date: May 15, 2003
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Patrick Michael McCaffrey, Douglas Howard Piltingsrud