Patents by Inventor Shintaro Nagasaki

Shintaro Nagasaki 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).

  • Patent number: 8228289
    Abstract: A display device having an electrophoretic display panel that has two types of electrophoretic elements of different color and polarity disposed between electrodes, and changes display state according to an applied voltage, and a drive means for driving the electrophoretic display panel by applying a voltage between the electrodes.
    Type: Grant
    Filed: May 25, 2007
    Date of Patent: July 24, 2012
    Assignee: Seiko Epson Corporation
    Inventor: Shintaro Nagasaki
  • Publication number: 20070296690
    Abstract: A display device having an electrophoretic display panel that has two types of electrophoretic elements of different color and polarity disposed between electrodes, and changes display state according to an applied voltage, and a drive means for driving the electrophoretic display panel by applying a voltage between the electrodes.
    Type: Application
    Filed: May 25, 2007
    Publication date: December 27, 2007
    Applicant: Seiko Epson Corporation
    Inventor: Shintaro Nagasaki
  • Publication number: 20070080928
    Abstract: A display control apparatus for controlling an electrophoretic display panel 5 having two types of electrophoretic particles of different color and polarity between electrodes has a display drive circuit 40 for supplying a pulse wave drive signal to apply a drive voltage between the electrodes to change the display color of the electrophoretic display panel to a color between the colors of the electrophoretic particles and display a gray level color, and a control unit 57 for controlling migration of the electrophoretic particles by means of the display drive circuit 40 based on the target display color, which is the display color to which the display is to be changed, and the difference in the migration characteristics of the two types of electrophoretic particles. By considering the migration characteristics of the electrophoretic particles of each color when changing the display color of the electrophoretic display panel, the discordance that can result when changing the display color is reduced.
    Type: Application
    Filed: October 11, 2006
    Publication date: April 12, 2007
    Applicant: Seiko Epson Corporation
    Inventors: Junichiro Ishii, Shintaro Nagasaki
  • Publication number: 20070057907
    Abstract: A display device comprising an electrophoretic display panel comprising two types of electrophoretic particles of different color and polarity between electrodes, and a drive unit for supplying a drive signal to apply a drive voltage between the electrodes to switch a display color of the electrophoretic display panel between the colors of the electrophoretic particles. The drive unit supplies a drive signal of which the drive power is changed according to the electrophoretic characteristics when the display color of the electrophoretic display panel is changed in order to change the display color of the electrophoretic display panel.
    Type: Application
    Filed: August 30, 2006
    Publication date: March 15, 2007
    Applicant: Seiko Epson Corporation
    Inventors: Junichiro Ishii, Shintaro Nagasaki