Patents by Inventor Hisashi Umetsu

Hisashi Umetsu 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).

  • Inkjet recording device and printing head
    Patent number: 8764169
    Abstract: In an inkjet recording device, nozzles are arranged orthogonally to a deflection direction of deflection electrodes. Ink jetted from each nozzle is charged by a pair of charging electrodes. Charged droplets are deflected by an electric field formed thereby. Voltages applied to each electrode and timings thereof can be independently adjusted.
    Type: Grant
    Filed: August 11, 2009
    Date of Patent: July 1, 2014
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Nobuhiro Harada, Akira Miyao, Koji Horikawa, Hisashi Umetsu, Takuya Moriai
  • INKJET RECORDING DEVICE AND PRINTING HEAD
    Publication number: 20120194586
    Abstract: In an inkjet recording device, nozzles are arranged orthogonally to a deflection direction of deflection electrodes. Ink jetted from each nozzle is charged by a pair of charging electrodes. Charged droplets are deflected by an electric field formed thereby. Voltages applied to each electrode and timings thereof can be independently adjusted.
    Type: Application
    Filed: August 11, 2009
    Publication date: August 2, 2012
    Inventors: Nobuhiro Harada, Akira Miyao, Koji Horikawa, Hisashi Umetsu, Takuya Moriai