Patents by Inventor Richard Lee Hilton

Richard Lee Hilton 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: 7542402
    Abstract: A read/write arrangement for a contact probe storage arrangement or the like, has a cantilever disposed with a medium which is movable relative to the cantilever. A device which is associated with one of the cantilever and the medium is configured to be responsive to changes in electrical field between the medium and the cantilever caused by a change in distance between the medium and the cantilever. A heater is disposed on the cantilever for heating the medium and for inducing localized topographical changes which represent bits of data. A circuit electrically interconnects both of the device and the heater.
    Type: Grant
    Filed: April 20, 2004
    Date of Patent: June 2, 2009
    Assignee: Seagate Technology LLC
    Inventors: Robert Guido Mejia, Richard Lee Hilton
  • Patent number: 7460462
    Abstract: A read/write arrangement for a contact probe storage arrangement or the like, has a cantilever disposed with a medium which is movable relative to the cantilever; a device associated with one of the cantilever and the medium which is configured to be responsive to changes in electrical field between the medium and the cantilever caused by a change in distance between the medium and the cantilever; a heater disposed on the cantilever for heating the medium and for inducing localized topographical changes which represent bits of data; and a circuit which electrically interconnects both of the device and the heater.
    Type: Grant
    Filed: December 17, 2003
    Date of Patent: December 2, 2008
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Robert G. Mejia, Richard Lee Hilton
  • Patent number: 7042783
    Abstract: One embodiment of a magnetic memory includes a memory cell configured to provide a first state, and a sensing circuit. The sensing circuit is configured to charge a capacitor through the memory cell in the first state and discharge the capacitor through the memory cell in the first state to determine a state of the memory cell.
    Type: Grant
    Filed: June 18, 2003
    Date of Patent: May 9, 2006
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Richard Lee Hilton
  • Patent number: 6847544
    Abstract: A magnetic memory which detects changes between resistive states of a memory cell is disclosed. In one embodiment the magnetic memory includes a memory cell which has first and second resistive states. First and second write conductors are configured to conduct first and second currents to change the memory cell between the first and the second resistive states. The first and the second write conductors are routed in first and second directions and intersect the memory cell. First and second sense conductors are configured to conduct a sense current through the memory cell. A sense circuit coupled to the second sense conductor is configured to detect the change between the first and the second resistive states.
    Type: Grant
    Filed: October 20, 2003
    Date of Patent: January 25, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Kenneth Kay Smith, Frederick A. Perner, Richard Lee Hilton
  • Publication number: 20040257855
    Abstract: One embodiment of a magnetic memory includes a memory cell configured to provide a first state, and a sensing circuit. The sensing circuit is configured to charge a capacitor through the memory cell in the first state and discharge the capacitor through the memory cell in the first state to determine a state of the memory cell.
    Type: Application
    Filed: June 18, 2003
    Publication date: December 23, 2004
    Inventor: Richard Lee Hilton
  • Patent number: 6617597
    Abstract: An electron-beam controller (EBC) capable of controlling the power in an electron-beam is disclosed. The EBC can be implemented with an emitter, an extractor, a current mirror, and an input current having a magnitude responsive to the desired electron beam current. An EBC suited for low-efficiency emitters is also disclosed. A method for controlling the power intensity of an electron-beam over time is also disclosed. The method includes the steps of: (1) providing an emitter at a first voltage, (2) providing a target at a second voltage, (3) introducing an extractor at a controllable third voltage, (4) estimating the actual electron beam energy by sensing the emitter current; and (5) adjusting the third voltage in response to the sensed emitter current.
    Type: Grant
    Filed: November 30, 2001
    Date of Patent: September 9, 2003
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Richard Lee Hilton
  • Publication number: 20030102442
    Abstract: An electron-beam controller (EBC) capable of controlling the power in an electron-beam is disclosed. The EBC can be implemented with an emitter, an extractor, a current mirror, and an input current having a magnitude responsive to the desired electron beam current. An EBC suited for low-efficiency emitters is also disclosed. A method for controlling the power intensity of an electron-beam over time is also disclosed. The method includes the steps of: (1) providing an emitter at a first voltage, (2) providing a target at a second voltage, (3) introducing an extractor at a controllable third voltage, (4) estimating the actual electron beam energy by sensing the emitter current; and (5) adjusting the third voltage in response to the sensed emitter current.
    Type: Application
    Filed: November 30, 2001
    Publication date: June 5, 2003
    Inventor: Richard Lee Hilton