Patents by Inventor Carl Wu

Carl Wu 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).

  • Publication number: 20060274116
    Abstract: A method for coating select portions of a liquid jetting assembly with a hydrophobic coating comprises the steps of establishing a first pressure inside of an ink chamber of the jetting assembly; establishing a second pressure outside of the ink chamber of the jetting assembly, the inside and the outside being fluidly communicable with one another by an ink delivery channel; and introducing a composition capable of forming a hydrophobic coating outside of the ink chamber. The second pressure can facilitate formation of the hydrophobic coating on an outer surface of the liquid jetting assembly, and the first pressure can restrict the hydrophobic coating from being formed within the ink chamber.
    Type: Application
    Filed: June 1, 2005
    Publication date: December 7, 2006
    Inventor: Carl Wu
  • Publication number: 20060268059
    Abstract: A fluid delivery system includes a plurality of nozzles having an outer surface and a bore. A hydrophobic layer is applied to a portion of the outer surface of the nozzle and extends into the nozzle bore a determined distance.
    Type: Application
    Filed: May 26, 2005
    Publication date: November 30, 2006
    Inventors: Carl Wu, Erik Torniainen, Mark Taylor
  • 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: 6520627
    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: February 1, 2002
    Date of Patent: February 18, 2003
    Assignee: Hewlett-Packard Company
    Inventors: Chien-Hau Chen, Donald E. Wenzel, Qin Liu, Naoto Kawamura, Richard W. Seaver, Carl Wu, Colby Van Vooren, Jeffery S. Hess, Colin C. Davis
  • Publication number: 20020145644
    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: Application
    Filed: June 6, 2002
    Publication date: October 10, 2002
    Inventors: Chien-Hua Chen, Donald E. Wenzel, Qin Liu, Naoto Kawanura, Colby Van Vooren, Colin C. Davis, Richard W. Seaver, Carl Wu, Jeffery S. Hess
  • Patent number: 6447102
    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 26, 2000
    Date of Patent: September 10, 2002
    Assignee: Hewlett-Packard Company
    Inventors: Chien-Hau Chen, Donald E. Wenzel, Qin Liu, Naoto Kawamura, Richard W. Seaver, Carl Wu, Colby Van Vooren, Jeffery S. Hess, Colin C. Davis
  • Publication number: 20020071006
    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: Application
    Filed: February 1, 2002
    Publication date: June 13, 2002
    Inventors: Chien-Hau Chen, Donald E. Wenzel, Qin Liu, Naoto Kawamura, Richard W. Seaver, Carl Wu, Colby Van Vooren, Jeffery S. Hess, Colin C. Davis
  • Patent number: 6162589
    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: March 2, 1998
    Date of Patent: December 19, 2000
    Assignee: Hewlett-Packard Company
    Inventors: Chien-Hau Chen, Donald E. Wenzel, Qin Liu, Naoto Kawamura, Richard W. Seaver, Carl Wu, Colby Van Vooren, Jeffery S. Hess, Colin C. Davis
  • Patent number: 5756343
    Abstract: The present invention relates to DNA sequence coding for part or all of the heat shock transcription factor or heat shock factor (HSF) proteins derived from humans and Drosophila, and the proteins encoded by these sequences.The present invention also includes methods for detecting HSF in a biological sample. The presence of HSF in the nucleus of a cell can be detected with specific anti-HSF antibody reagents. The presence of such HSF proteins in the nucleus indicates a stressed condition including diseases. Furthermore, the presence of multimeric HSF in the crude or fractionated cell extract is indicative of a stressed state.
    Type: Grant
    Filed: January 7, 1994
    Date of Patent: May 26, 1998
    Assignee: The United States of America as represented by the Department of Health and Human Services
    Inventors: Carl Wu, Joachim Clos, J. Timothy Westwood, Sridhar Rabindran