Patents by Inventor Keiiti Ogura

Keiiti Ogura 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).

  • Light emitting device
    Patent number: 7572478
    Abstract: A technique for sealing an EL panel of a light emitting device is provided. By preparing a absorption metal as a film on EL elements on the inside of an enclosed space, it becomes easy to made the interior of the space possess a absorption function, and further, an enclosure structure can be fabricated without the penetration of oxygen and moisture into the space because the absorption film is formed in succession after formation of the EL elements, according to the present invention.
    Type: Grant
    Filed: July 29, 2005
    Date of Patent: August 11, 2009
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Keiiti Ogura, Masahiro Takahashi
  • Light emitting device
    Publication number: 20050260337
    Abstract: A technique for sealing an EL panel of a light emitting device is provided. By preparing a absorption metal as a film on EL elements on the inside of an enclosed space, it becomes easy to made the interior of the space possess a absorption function, and further, an enclosure structure can be fabricated without the penetration of oxygen and moisture into the space because the absorption film is formed in succession after formation of the EL elements, according to the present invention.
    Type: Application
    Filed: July 29, 2005
    Publication date: November 24, 2005
    Inventors: Keiiti Ogura, Masahiro Takahashi
  • Light emitting device
    Patent number: 6924594
    Abstract: A technique for sealing an EL panel of a light emitting device is provided. By preparing a absorption metal as a film on EL elements on the inside of an enclosed space, it becomes easy to made the interior of the space possess a absorption function, and further, an enclosure structure can be fabricated without the penetration of oxygen and moisture into the space because the absorption film is formed in succession after formation of the EL elements, according to the present invention.
    Type: Grant
    Filed: October 1, 2001
    Date of Patent: August 2, 2005
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Keiiti Ogura, Masahiro Takahashi
  • Light emitting device
    Publication number: 20020070663
    Abstract: A technique for sealing an EL panel of a light emitting device is provided. By preparing a absorption metal as a film on EL elements on the inside of an enclosed space, it becomes easy to made the interior of the space possess a absorption function, and further, an enclosure structure can be fabricated without the penetration of oxygen and moisture into the space because the absorption film is formed in succession after formation of the EL elements, according to the present invention.
    Type: Application
    Filed: October 1, 2001
    Publication date: June 13, 2002
    Inventors: Keiiti Ogura, Masahiro Takahashi