Patents by Inventor Keigo Kanoh

Keigo Kanoh 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: 8907876
    Abstract: A pixel circuit has a light emitting element and a driver electrically connected to the light emitting element. A reverse bias voltage is applied to the driver to reduce a shift amount of a threshold voltage of the driver.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: December 9, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Taro Hasumi, Yoshinao Kobayashi, Keigo Kanoh
  • Publication number: 20130002637
    Abstract: A pixel circuit has a light emitting element and a driver electrically connected to the light emitting element. A reverse bias voltage is applied to the driver to reduce a shift amount of a threshold voltage of the driver.
    Type: Application
    Filed: September 14, 2012
    Publication date: January 3, 2013
    Inventors: Taro HASUMI, Yoshinao KOBAYASHI, Keigo KANOH
  • Patent number: 8289244
    Abstract: A pixel circuit has a light emitting element and a driver electrically connected to the light emitting element. A reverse bias voltage is applied to the driver to reduce a shift amount of a threshold voltage of the driver.
    Type: Grant
    Filed: June 26, 2007
    Date of Patent: October 16, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Taro Hasumi, Yoshinao Kobayashi, Keigo Kanoh
  • Patent number: 8111220
    Abstract: An EL device includes a substrate having a square shape, an element-forming region provided on an upper surface of the substrate and having organic light-emitting elements, a protruding section arranged in a region between the element-forming region and an end portion of the substrate, and a protection film deposited in a region extending from the element-forming region to the end portion of the substrate and disposed so as to cover the protruding section. The protruding section is disposed in a substantially strip-like shape along at least two of four sides of the substrate.
    Type: Grant
    Filed: December 26, 2006
    Date of Patent: February 7, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Motohiko Asano, Shinji Takasugi, Keigo Kanoh, Daisuke Ota, Taro Hasumi, Hiromutsu Ogawa, Shinichi Abe
  • Patent number: 7719184
    Abstract: Provided is an organic EL element including: a first electrode 13; a protection layer 15 that is formed on the first electrode 13 and has an opening portion through which the first electrode 13 is exposed; an insulation layer 17 that is formed on the protection layer 15; an organic layer 19 that is formed over the insulation layer 17 and the first electrode 13 exposed through the opening portion, and includes an emission layer; and a second electrode 21 formed on the organic layer 19, wherein a film thickness of the protection layer 15 is less than that of the organic layer 19.
    Type: Grant
    Filed: July 28, 2006
    Date of Patent: May 18, 2010
    Assignee: Kyocera Corporation
    Inventors: Keigo Kanoh, Mitsuo Morooka, Taro Hasumi, Hiromi Fukuoka, Masaya Watanabe
  • Publication number: 20090273589
    Abstract: An EL device includes a substrate having a square shape, an element-forming region provided on an upper surface of the substrate and having organic light-emitting elements, a protruding section arranged in a region between the element-forming region and an end portion of the substrate, and a protection film deposited in a region extending from the element-forming region to the end portion of the substrate and disposed so as to cover the protruding section. The protruding section is disposed in a substantially strip-like shape along at least two of four sides of the substrate.
    Type: Application
    Filed: December 26, 2006
    Publication date: November 5, 2009
    Applicant: KYOCERA CORPORATION
    Inventors: Motohiko Asano, Shinji Takasugi, Keigo Kanoh, Daisuke Ota, Taro Hasumi, Hiromitsu Ogawa, Shinichi Abe
  • Publication number: 20080007547
    Abstract: A pixel circuit has a light emitting element and a driver electrically connected to the light emitting element. A reverse bias voltage is applied to the driver to reduce a shift amount of a threshold voltage of the driver.
    Type: Application
    Filed: June 26, 2007
    Publication date: January 10, 2008
    Applicant: KYOCERA Corporation
    Inventors: Taro Hasumi, Yoshinao Kobayashi, Keigo Kanoh
  • Publication number: 20070176545
    Abstract: Provided is an organic EL element including: a first electrode 13; a protection layer 15 that is formed on the first electrode 13 and has an opening portion through which the first electrode 13 is exposed; an insulation layer 17 that is formed on the protection layer 15; an organic layer 19 that is formed over the insulation layer 17 and the first electrode 13 exposed through the opening portion, and includes an emission layer; and a second electrode 21 formed on the organic layer 19, wherein a film thickness of the protection layer 15 is less than that of the organic layer 19.
    Type: Application
    Filed: July 28, 2006
    Publication date: August 2, 2007
    Applicant: Kyocera Corporation
    Inventors: Keigo Kanoh, Mitsuo Morooka, Taro Hasumi, Hiromi Fukuoka, Masaya Watanabe
  • Patent number: 7122956
    Abstract: An organic light emitting diode (OLED) display comprises: an insulating substrate; common electrodes; a first electrode layer formed in a region adjacent to the common electrodes formed on the insulating substrate electrically isolated from the common electrodes; an insulating layer which coats the insulating substrate and respectively opens a first opening window exposing a part of the common electrodes and a second opening window exposing at least a part of the first electrode layer; ribs or walls which form a cell area by crossing the common electrodes on the insulating substrate and surround each of the opening windows; a material layer formed on the first electrode layer exposed by the second opening window; and a second electrode layer which coats the cell area surrounded by the ribs and is electrically connected to the common electrodes through the first opening window.
    Type: Grant
    Filed: August 25, 2004
    Date of Patent: October 17, 2006
    Assignees: Chi Mei Optoelectronics Corp., Kyocera Corporation
    Inventors: Nami Ikeda, Mitsuo Morooka, Shinya Ono, Keigo Kanoh, Koji Murayama, Koichi Miwa
  • Publication number: 20050046341
    Abstract: An organic light emitting diode display comprises: an insulating substrate; common electrodes; a first electrode layer formed in a region adjacent to the common electrodes formed on the insulating substrate by electrically isolating from the common electrodes; an insulating layer which coats on the insulating substrate by respectively opening a first opening window exposing a part of the common electrodes and a second opening window exposing at least a part of the first electrode layer; ribs which form a cell area by crossing the common electrodes on the insulating substrate and surrounding each of the opening windows; a material layer formed on the first electrode layer exposed from the second opening window; and a second electrode layer which coats within the cell area surrounded by the ribs and electrically connected to the common electrodes through the first opening window.
    Type: Application
    Filed: August 25, 2004
    Publication date: March 3, 2005
    Inventors: Nami Ikeda, Mitsuo Morookqa, Shinya Ono, Keigo Kanoh, Koji Murayama, Koichi Miwa