Patents by Inventor Kazutoshi OKADA

Kazutoshi OKADA 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).

  • Image display apparatus and control method thereof
    Patent number: 11016377
    Abstract: A projector includes an image projection unit for displaying an image by a liquid crystal panel, and a controller that powers off the projector after displaying a black image in the image projection unit for a predetermined time (a set refresh time) in a refresh mode for improving burn-in of the liquid crystal panel, in which the controller stops the refresh mode when an interrupt event is generated before the set refresh time elapses in the refresh mode and powers off the projector after executing an interrupt process according to the interrupt event.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: May 25, 2021
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Yasuhiro Nakamura, Yasuhiro Honda, Kazutoshi Okada
  • IMAGE DISPLAY APPARATUS AND CONTROL METHOD THEREOF
    Publication number: 20190235373
    Abstract: A projector includes an image projection unit for displaying an image by a liquid crystal panel, and a controller that powers off the projector after displaying a black image in the image projection unit for a predetermined time (a set refresh time) in a refresh mode for improving burn-in of the liquid crystal panel, in which the controller stops the refresh mode when an interrupt event is generated before the set refresh time elapses in the refresh mode and powers off the projector after executing an interrupt process according to the interrupt event.
    Type: Application
    Filed: January 31, 2019
    Publication date: August 1, 2019
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Yasuhiro NAKAMURA, Yasuhiro HONDA, Kazutoshi OKADA
  • Projector and program
    Patent number: 8777423
    Abstract: A projector includes a projection light source, a light-off detector that detects that the projection light source is shut off, and a relighting controller that carries out a relighting process for relighting the projection light source based on the detection performed by the light-off detector as a trigger.
    Type: Grant
    Filed: May 28, 2013
    Date of Patent: July 15, 2014
    Assignee: Seiko Epson Corporation
    Inventor: Kazutoshi Okada
  • PROJECTOR AND PROGRAM
    Publication number: 20130258297
    Abstract: A projector includes a projection light source, a light-off detector that detects that the projection light source is shut off, and a relighting controller that carries out a relighting process for relighting the projection light source based on the detection performed by the light-off detector as a trigger.
    Type: Application
    Filed: May 28, 2013
    Publication date: October 3, 2013
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Kazutoshi OKADA
  • PROJECTOR AND PROGRAM
    Publication number: 20130258296
    Abstract: A projector includes a projection light source, a light-off detector that detects that the projection light source is shut off, and a relighting controller that carries out a relighting process for relighting the projection light source based on the detection performed by the light-off detector as a trigger.
    Type: Application
    Filed: May 28, 2013
    Publication date: October 3, 2013
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Kazutoshi OKADA
  • PROJECTOR AND PROGRAM
    Publication number: 20090174866
    Abstract: A projector includes a projection light source, a light-off detector that detects that the projection light source is shut off, and a relighting controller that is triggered to carry out a relighting process for relighting the projection light source based on the detection performed by the light-off detector.
    Type: Application
    Filed: January 7, 2009
    Publication date: July 9, 2009
    Applicant: Seiko Epson Corporation
    Inventor: Kazutoshi OKADA