Patents by Inventor Ignacio Ruiz Conejo

Ignacio Ruiz Conejo 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).

  • Calibration technique for mis-directed inkjet printhead nozzles
    Patent number: 5835108
    Abstract: Method and apparatus for calibrating an inkjet printhead by printing separate test patterns from respective groups of nozzles on the same printhead, and then using a carriage-mounted optical sensor to scan the patterns to determine the relative locations of the ink drops from each group of nozzles.
    Type: Grant
    Filed: September 25, 1996
    Date of Patent: November 10, 1998
    Assignee: Hewlett-Packard Company
    Inventors: Robert W. Beauchamp, Ignacio Ruiz Conejo