Patents Represented by Attorney, Agent or Law Firm Timothy F. Myers
  • Patent number: 6902259
    Abstract: A process for creating and an apparatus employing shaped orifices in a semiconductor substrate. A first layer of material is applied on the semiconductor substrate then a second layer of material is then applied upon the first layer of material. An orifice image is then transferred to the first layer of material and a fluid-well image is transferred to the second layer of material. That portion of the second layer of material where the orifice image is located is then developed along with that portion of the first layer of material where the fluid well is located to define an orifice in the substrate.
    Type: Grant
    Filed: June 6, 2002
    Date of Patent: June 7, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Chien-Hua Chen, Donald E. Wenzel, Qin Liu, Naoto Kawamura, Colby Van Vooren, Colin C Davis, Richard W Seaver, Carl Wu, Jeffery S Hess
  • Patent number: 6883894
    Abstract: An integrated circuit is formed on a substrate. The integrated circuit includes a transistor formed in the substrate. The transistor has a gate that forms at least one closed-loop. The integrated circuit also includes an ejection element that is coupled to the transistor wherein the ejection element is disposed over the substrate without an intervening field oxide layer.
    Type: Grant
    Filed: March 19, 2001
    Date of Patent: April 26, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Frank R. Bryant, Joseph M. Torgerson, Angela White Bakkom
  • Patent number: 6882100
    Abstract: A light device includes an electron supply defining an emitter surface. A dielectric tunneling layer is disposed between the electron supply and a cathode layer. The cathode layer has at least partial photon transparency that is substantially uniform across the emitter surface.
    Type: Grant
    Filed: January 6, 2003
    Date of Patent: April 19, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Zhizhang Chen, Sriram Ramamoorthi, Terry E McMahon, Timothy F. Myers
  • Patent number: 6878638
    Abstract: An integrated circuit includes a substrate having an etched surface and a non-etched surface. The etched surface contains circuit elements and the non-etched surface contains a bonding surface. The non-etched surface is located at a predetermined height from the etched surface. Bonding this integrated circuit with another substrate creates a wide-gap between the substrates that is preferably evacuated and hermetically sealed.
    Type: Grant
    Filed: May 13, 2003
    Date of Patent: April 12, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Michael J. Regan, John Liebeskind, Charles C. Haluzak
  • Patent number: 6879525
    Abstract: An integrated circuit includes an array of state-change devices, first and second decoder circuits for selecting a particular state-change device. A voltage source is coupled to the first decoder circuit and sense circuitry is coupled to the second decoder to receive an electrical parameter from the selected state-change device and to detect a particular value of the electrical parameter. A control circuit is coupled to the voltage source, the first and second decoders, and the sense circuitry to select a first voltage from the voltage source to alter the selected state-change device and to select a second voltage from the voltage source when the sense circuitry detects the particular value of the electrical parameter.
    Type: Grant
    Filed: October 31, 2001
    Date of Patent: April 12, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Andrew L. Van Brocklin, Peter Fricke, S. Jonathan Wang
  • Patent number: 6876986
    Abstract: A system for the transaction of transactional amounts when using merchantable content on a medium includes a clearinghouse, an apparatus having a medium handier, a merchantable content receiver, a medium identifier, a content identifier, a medium use mechanism, and a transmitter. The medium handler accepts the medium and the merchantable content receiver accepts the merchantable content. The medium identifier reads a first identifier from the medium. The content identifier reads a second identifier from the merchantable content. The medium use mechanism incorporates and uses the merchantable content with the medium. The transmitter sends the first and second identifiers to the clearinghouse. The clearinghouse has a first account for a medium provider referenced by the first identifier and a second account for the content provider referenced by the second identifier.
    Type: Grant
    Filed: October 30, 2000
    Date of Patent: April 5, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Kevin G. Currans, Henry W. Sang, Jr.
  • Patent number: 6847350
    Abstract: An electronic device has a case and a screen attached to the case. The screen indicates a cursor position. The electronic device further has an input device mounted to the case. The input device includes a curved surface for detecting an object disposed on the curved surface using a light path that transfers an image of the object to an optical sensor. The optical sensor detects the movement of the object across the curved surface and in response, the input device manipulates the cursor position.
    Type: Grant
    Filed: December 10, 2002
    Date of Patent: January 25, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Andrew L Van Brocklin, Glen A Oross, James F Bausch, Gregory J May
  • Patent number: 6840605
    Abstract: A print cartridge is used in a printing system in which there is a requirement to provide two distinct rates of ink usage corresponding to two different types of printing done with the printing system. The print cartridge includes an ink replenishment path which selectively provides two flow rates into the print cartridge. The print cartridge also includes a controller which selects one of the two flow rates into the print cartridge based on which type of printing is being performed by the printing system.
    Type: Grant
    Filed: May 8, 2001
    Date of Patent: January 11, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Mark Hauck
  • Patent number: 6835947
    Abstract: An emitter includes an electron source and a cathode. The cathode has an emissive surface. The emitter further includes a continuous anisotropic conductivity layer disposed between the electron source and the emissive surface of the cathode. The anisotropic conductivity layer has an anisotropic sheet resistivity profile and provides for substantially uniform emissions over the emissive surface of the emitter.
    Type: Grant
    Filed: January 31, 2002
    Date of Patent: December 28, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Alexander Govyadinov, Michael J. Regan
  • Patent number: 6818494
    Abstract: An integrated circuit (IC) is formed on a substrate. The IC has a first well having a first dopant concentration that includes a second conductivity low-voltage transistor. The IC also has a second well having a dopant concentration equal to the first dopant concentration that includes a first conductivity high-voltage transistor. In addition, the IC has a third well having a second dopant concentration of an opposite type than the first well that includes a first conductivity low-voltage transistor. The first conductivity low-voltage transistor and the second conductivity low-voltage transistor are created without a threshold voltage (Vt) implant.
    Type: Grant
    Filed: March 26, 2001
    Date of Patent: November 16, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Zhizang Chen, Bao-Sung Bruce Yeh, S. Jonathan Wang, Cathy P. Peltier
  • Patent number: 6820064
    Abstract: A consumable article includes a consumable item and a memory device. The memory device is organized to represent currency. Use of the consumable item causes the memory device to be reorganized. The consumable article is used in an apparatus that has a control circuit that can update the memory device to modify the amount of currency when the apparatus consumes the consumable item. The apparatus optionally includes a network interface coupled to the control circuit that interfaces to a clearinghouse for reconciling the amount of currency and use of the consumable item.
    Type: Grant
    Filed: August 31, 2000
    Date of Patent: November 16, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Kevin G. Currans, Henry W. Sang, Jr., John A. Bertani
  • Patent number: 6806488
    Abstract: An emitter has an electron supply layer and a tunneling layer formed on the electron supply layer. Optionally, an insulator layer is formed on the electron supply layer and has openings defined within in which the tunneling layer is formed. A cathode layer is formed on the tunneling layer. A conductive layer is partially disposed on the cathode layer and partially on the insulator layer if present. The conductive layer defines an opening to provide a surface for energy emissions of electrons and/or photons. Preferably but optionally, the emitter is subjected to an annealing process thereby increasing the supply of electrons tunneled from the electron supply layer to the cathode layer.
    Type: Grant
    Filed: March 13, 2003
    Date of Patent: October 19, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Sriram Ramamoorthi, Zhizhang Chen
  • Patent number: 6798719
    Abstract: An electronic device has a central processing unit (CPU), a display, and a memory device. The display and memory device are both coupled to the CPU. The memory device includes a data structure having a born-on-date (BOD) field and a counter field. The BOD field contains a warranty start date for the electronic device. The CPU is capable of displaying the BOD field on the display. The BOD field is updated by said CPU based on the contents of said counter field.
    Type: Grant
    Filed: August 18, 2000
    Date of Patent: September 28, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Walter J Muta, Thomas M Tripp
  • Patent number: 6785956
    Abstract: A fluid-jet printhead has a substrate having at least one layer defining a fluid chamber for ejecting fluid. The printhead also includes a resistive layer disposed between the fluid chamber and the substrate wherein the fluid chamber has a smooth planer surface between the fluid chamber and the substrate. The printhead has a conductive layer disposed between the resistive layer and the substrate wherein the conductive layer and the resistive layer are in direct parallel contact. The conductive layer forms at least one void creating a planar resistor in the resistive layer. The planar resistor is aligned with the fluid chamber.
    Type: Grant
    Filed: May 13, 2002
    Date of Patent: September 7, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Genbao Xu, Zhizang Chen, Mark Alan Johnstone, John P. Whitlock
  • Patent number: 6781858
    Abstract: A cubic memory array is fabricated on a substrate having a planar surface. The cubic memory array includes a plurality of first select-lines organized in more than one plane parallel to the planar surface. A plurality of second select-lines is formed in pillars disposed orthogonal to the planer surface of the substrate. A plurality of memory cells are respectively coupled to the plurality of first and plurality of second select-lines.
    Type: Grant
    Filed: August 29, 2003
    Date of Patent: August 24, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Peter Fricke, Andrew L. Van Brocklin, Daryl Anderson
  • Patent number: 6781146
    Abstract: An emitter has an electron supply layer and a tunneling layer formed on the electron supply layer. Optionally, an insulator layer is formed on the electron supply layer and has openings defined within which the tunneling layer is formed. A cathode layer is formed on the tunneling layer to provide a surface for energy emissions of electrons and/or photons. Preferably, the emitter is subjected to an annealing process thereby increasing the supply of electrons tunneled from the electron supply layer to the cathode layer.
    Type: Grant
    Filed: April 30, 2001
    Date of Patent: August 24, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Zhizhang Chen, Michael J. Regan, Brian E Bolf, Thomas Novet, Paul J. Benning, Mark Alan Johnstone, Sriram Ramamoorthi
  • Patent number: 6758711
    Abstract: A method for creating an electron lens includes the steps of applying a polymer layer on an emitter surface of an electron emitter and then curing the polymer layer to reduce volatile content.
    Type: Grant
    Filed: June 14, 2001
    Date of Patent: July 6, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Zhizhang Chen, Ronald L. Enck, Sriram Ramamoorthi, Qin Liu
  • Patent number: 6753544
    Abstract: An emitter has an electron supply layer and a silicon-based dielectric layer formed on the electron supply layer. The silicon-based dielectric layer is preferably less than about 500 Angstroms. Optionally, an insulator layer is formed on the electron supply layer and has openings defined within which the silicon-based dielectric layer is formed. A cathode layer is formed on the silicon-based dielectric layer to provide a surface for energy emissions of electrons and/or photons. Preferably, the emitter is subjected to an annealing process thereby increasing the supply of electrons tunneled from the electron supply layer to the cathode layer.
    Type: Grant
    Filed: April 30, 2001
    Date of Patent: June 22, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Zhizhang Chen, Michael David Bice, Ronald L. Enck, Michael J. Regan, Thomas Novet, Paul J. Benning
  • Patent number: 6741016
    Abstract: An electron lens is used for focusing electrons from a cathode to an anode. The lens includes a first conductive layer with a first opening at a first distance from the cathode. The first conductive layer is held at a first voltage. The lens also includes a second conductive layer with a second opening at a second distance from the first conductive layer and a third distance from the anode. The second conductive layer is held at a second voltage substantially equal to the voltage of the anode. The first and second openings are chosen based on the first voltage, the second voltage, the first distance, the second distance and the third distance. The opening focuses the electrons emitted from the cathode onto the anode to a spot size preferably less than 40 nanometers. The force created between the cathode and anode is minimized by the structure of the lens.
    Type: Grant
    Filed: June 14, 2001
    Date of Patent: May 25, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Paul J. Benning, William R Knight, Michael J. Regan
  • Patent number: 6718632
    Abstract: A method of creating a fluid ejection device is described. The fluid ejection device has a substrate having a set of thin-film layers disposed on a first surface. A photoresist is applied on the set of thin-film layers, the photoresist has openings defined therein. The set of thin-film layers and substrate in the openings are etched to create deep slots beneath the first surface of the substrate. The photoresist is removed. A protection layer is applied over the set of thin-film layers thereby filling the deep slots in the set of thin-film layers and substrate. A feed channel is created on a second surface of the substrate until the protection layer within the deep slots is exposed. The protection layer is then removed.
    Type: Grant
    Filed: July 29, 2002
    Date of Patent: April 13, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Qin Liu, Naoto Kawamura, Chien-Hua Chen