Patents by Inventor Tetsuya Tanbo

Tetsuya Tanbo 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).

  • Publication number: 20010049030
    Abstract: An organic EL device capable of preventing a deterioration in luminous section and increasing an effective area of a luminous section and current gain thereof. The organic EL device includes at least one first electrode made of a transparent electrode material, at least one luminous section made of an organic EL material and formed on the first electrode, and at least one second electrode formed on the luminous section. The luminous section is arranged on the first electrode so that the first electrode has an annular upper surface portion which is not covered with the luminous section left on an upper surface thereof in a manner to surround the luminous section. The second electrode is formed so that the luminous section has an annular upper surface portion which is not covered with the second electrode left on an upper surface thereof in a manner to surround the second electrode.
    Type: Application
    Filed: November 17, 1998
    Publication date: December 6, 2001
    Inventors: HIROYUKI OKADA, SHIGEKI NAKA, HIROYOSHI ONNAGAWA, MORIMITSU WAKABAYASHI, SHIGERU FUKUMOTO, TETSUYA TANBO
  • Patent number: 6140766
    Abstract: An organic EL device capable of providing an image plane which exhibits increased luminance or brightness while eliminating any difference in luminescence between luminous sections. An electrically insulating layer is arranged so as to cover both a first wiring pattern and a second wiring pattern and formed with a plurality of hole arrays in a manner to respectively correspond to first electrodes. The hole arrays each are constituted of a plurality of holes arranged along the first electrode corresponding thereto and so as to extend through an insulating layer to the first electrode while being kept from extending through second electrodes. A third wiring pattern is arranged which is constituted of a plurality of conductive paths each arranged on the insulating layer so as to be in alignment with each of the hole arrays and electrically connected to each of the first electrodes through connection conductive sections formed in the holes of the hole array corresponding thereto.
    Type: Grant
    Filed: December 28, 1998
    Date of Patent: October 31, 2000
    Assignee: Hokuriku Electric Industry Co., Ltd.
    Inventors: Hiroyuki Okada, Shigeki Naka, Hiroyoshi Onnagawa, Morimitsu Wakabayashi, Hajime Yamamoto, Shigeru Fukumoto, Tetsuya Tanbo