Patents by Inventor Kurl Ulmer

Kurl Ulmer 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).

  • Piezoelectric printhead and related methods
    Patent number: 8567027
    Abstract: A piezoelectric printhead and related methods provide a first metallic electrode and a second metallic electrode deposited over a top surface and a bottom surface, respectively, of a piezoceramic plate. The second electrode is segmented into a plurality of electrode segments. A diaphragm is positioned over a plurality of pressure chambers, where the diaphragm includes a conductor positioned over each chamber. The piezoceramic plate is attached to the diaphragm such that each conductor on the diaphragm faces multiple electrode segments.
    Type: Grant
    Filed: January 9, 2012
    Date of Patent: October 29, 2013
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Tony S Cruz-Uribe, Kurl Ulmer, Adel Jilani, Haggai Karlinski, Peter Mardilovich
  • PIEZOELECTRIC PRINTHEAD AND RELATED METHODS
    Publication number: 20120102695
    Abstract: A piezoelectric printhead and related methods provide a first metallic electrode and a second metallic electrode deposited over a top surface and a bottom surface, respectively, of a piezoceramic plate. The second electrode is segmented into a plurality of electrode segments. A diaphragm is positioned over a plurality of pressure chambers, where the diaphragm includes a conductor positioned over each chamber. The piezoceramic plate is attached to the diaphragm such that each conductor on the diaphragm faces multiple electrode segments.
    Type: Application
    Filed: January 9, 2012
    Publication date: May 3, 2012
    Inventors: Tony S. Cruz-Uribe, Kurl Ulmer, Adel Jilani, Haggai Karlinski, Peter Mardilovich