Patents by Inventor Donata ASNAGHI

Donata ASNAGHI 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 ejection microfluidic device, in particular for ink printing, and manufacturing process thereof
    Patent number: 10946653
    Abstract: The fluid ejection microfluidic device, has a substrate; a buried cavity within the first substrate; a membrane formed by the first substrate and extending between the buried cavity and a first main surface of the substrate; and an access channel extending through the substrate, laterally and externally to the buried cavity and to the membrane and isolated with respect to the buried cavity. A sealed actuation structure extends over the first main surface of the substrate. A containment layer, of polymeric material, extends over the first main surface of the substrate and forms a fluid containment chamber accommodating the sealed actuation structure. A nozzle body of semiconductor material closes the fluid containment chamber at the top and is traversed by an ejection opening, forming, together with the fluid containment chamber and the access channel, a fluidic path.
    Type: Grant
    Filed: May 16, 2019
    Date of Patent: March 16, 2021
    Assignee: STMICROELECTRONICS S.R.L.
    Inventors: Domenico Giusti, Mauro Cattaneo, Donata Asnaghi
  • FLUID EJECTION MICROFLUIDIC DEVICE, IN PARTICULAR FOR INK PRINTING, AND MANUFACTURING PROCESS THEREOF
    Publication number: 20190358955
    Abstract: The fluid ejection microfluidic device, has a substrate; a buried cavity within the first substrate; a membrane formed by the first substrate and extending between the buried cavity and a first main surface of the substrate; and an access channel extending through the substrate, laterally and externally to the buried cavity and to the membrane and isolated with respect to the buried cavity. A sealed actuation structure extends over the first main surface of the substrate. A containment layer, of polymeric material, extends over the first main surface of the substrate and forms a fluid containment chamber accommodating the sealed actuation structure. A nozzle body of semiconductor material closes the fluid containment chamber at the top and is traversed by an ejection opening, forming, together with the fluid containment chamber and the access channel, a fluidic path.
    Type: Application
    Filed: May 16, 2019
    Publication date: November 28, 2019
    Inventors: Domenico GIUSTI, Mauro CATTANEO, Donata ASNAGHI