Patents by Inventor Ricard SILVESTRE RIVERO

Ricard SILVESTRE RIVERO 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).

  • Thermal based drop detection
    Patent number: 11571887
    Abstract: A system comprises a printhead including a nozzle, a temperature sensor and a processor. The temperature sensor detects the temperature of a location of a print surface upon firing the nozzle to eject a drop of printing fluid to the location of the print surface. The processor determines whether the nozzle ejected the drop properly using the detected temperature.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: February 7, 2023
    Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Ricard Silvestre Rivero, Jordi Hernandez Creus, Mauricio Seras Franzoso
  • Printhead voltage regulators
    Patent number: 11571889
    Abstract: There is disclosed a method of supplying an n-channel transistor, operating as a voltage regulator, with a supply voltage and providing a control voltage to the n-channel transistor. The n-channel transistor is controlled by the control voltage to output an operating voltage of a printhead at a predetermined voltage.
    Type: Grant
    Filed: January 9, 2019
    Date of Patent: February 7, 2023
    Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Ricard Silvestre Rivero, Jordi Hernandez Creus, Oriol Sola Tapias
  • PRINTHEAD VOLTAGE REGULATORS
    Publication number: 20210323302
    Abstract: There is disclosed a method of supplying an n-channel transistor, operating as a voltage regulator, with a supply voltage and providing a control voltage to the n-channel transistor. The n-channel transistor is controlled by the control voltage to output an operating voltage of a printhead at a predetermined voltage.
    Type: Application
    Filed: January 9, 2019
    Publication date: October 21, 2021
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Ricard Silvestre Rivero, Jordi Hernandez Creus, Oriol Sola Tapias
  • THERMAL BASED DROP DETECTION
    Publication number: 20210237436
    Abstract: A system comprises a printhead including a nozzle, a temperature sensor and a processor. The temperature sensor detects the temperature of a location of a print surface upon firing the nozzle to eject a drop of printing fluid to the location of the print surface. The processor determines whether the nozzle ejected the drop properly using the detected temperature.
    Type: Application
    Filed: August 30, 2018
    Publication date: August 5, 2021
    Inventors: Ricard SILVESTRE RIVERO, Jordi HERNANDEZ CREUS, Mauricio SERAS FRANZOSO