Patents by Inventor Akemi Hirano

Akemi Hirano 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).

  • Liquid ejecting head and liquid ejecting apparatus
    Patent number: 7909439
    Abstract: A liquid ejecting head includes: a flow passage forming substrate which is provided with a plurality of liquid passages each having a pressure generating chamber communicating with a nozzle opening for ejecting a liquid and a communication section communicating with the plurality of liquid passages; an elastic film which is formed on one surface of the flow passage forming substrate and has an opening in an area opposed to the communication section; a pressure generating unit which applies pressure to the inside of the pressure generating chambers; and a reservoir forming substrate which is adhered onto the surface of the flow passage forming substrate on a side of the pressure generating unit and is provided with a reservoir section communicating with the communication section to form a part of a reservoir.
    Type: Grant
    Filed: March 23, 2009
    Date of Patent: March 22, 2011
    Assignee: Seiko Epson Corporation
    Inventors: Akemi Hirano, Akira Matsuzawa
  • LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS
    Publication number: 20090273653
    Abstract: A liquid ejecting head includes: a flow passage forming substrate which is provided with a plurality of liquid passages each having a pressure generating chamber communicating with a nozzle opening for ejecting a liquid and a communication section communicating with the plurality of liquid passages; an elastic film which is formed on one surface of the flow passage forming substrate and has an opening in an area opposed to the communication section; a pressure generating unit which applies pressure to the inside of the pressure generating chambers; and a reservoir forming substrate which is adhered onto the surface of the flow passage forming substrate on a side of the pressure generating unit and is provided with a reservoir section communicating with the communication section to form a part of a reservoir.
    Type: Application
    Filed: March 23, 2009
    Publication date: November 5, 2009
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Akemi Hirano, Akira Matsuzawa