Patents by Inventor John M. Watanabe

John M. Watanabe 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).

  • Fluid flux correction
    Patent number: 9221266
    Abstract: Fluid flux correction is disclosed. An example method of fluid flux correction includes displacing a fluid volume in a fluid reservoir with a compliant element. The method also includes absorbing fluid surges caused by variations in fluid flux to reduce distortion of at least one ink nozzle meniscus and maintain consistent fluid ejection.
    Type: Grant
    Filed: January 13, 2012
    Date of Patent: December 29, 2015
    Assignee: Hewlett-Parkard Development Company, L.P.
    Inventors: Benjamin H. Wood, Jon A. Crabtree, Orestes Alejandro Bihun, Lawrence E. Gibson, Louis C. Ramsay, John M. Watanabe
  • FLUID FLUX CORRECTION
    Publication number: 20150116429
    Abstract: Fluid flux correction is disclosed. An example method of fluid flux correction includes displacing a fluid volume in a fluid reservoir with a compliant element. The method also includes absorbing fluid surges caused by variations in fluid flux to reduce distortion of at least one ink nozzle meniscus and maintain consistent fluid ejection.
    Type: Application
    Filed: January 13, 2012
    Publication date: April 30, 2015
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Benjamin H. Wood, Jon A. Crabtree, Orestes Alejandro Bihun, Lawrence E. Gibson, Louis C. Ramsay, John M. Watanabe
  • WEB PRESS AND A METHOD OF INITIATING PRINTING
    Publication number: 20130101331
    Abstract: A web press and method of printing is described.
    Type: Application
    Filed: June 24, 2010
    Publication date: April 25, 2013
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Mark M. Morrow, John M. Watanabe, Jessica M. Carr, Paul Mark Haines, Brian L. Helterline
  • Printhead die warming
    Patent number: 7770997
    Abstract: A method for printing with a plurality of dies. A plurality of dies is provided, with each die having a plurality of drop generators that are configured to eject drops of a same colored fluid. The drops from each die have a corresponding nominal drop weight at a reference temperature of the die. At least one of the dies is warmed to a corresponding elevated temperature higher than the reference temperature in order to substantially equalize the nominal drop weights of all of the dies.
    Type: Grant
    Filed: September 27, 2004
    Date of Patent: August 10, 2010
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Wayne Richard, John M. Watanabe, Jacint Humet