Patents by Inventor Shinnzo Tsuboi

Shinnzo Tsuboi 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 and light emitting system
    Patent number: 7623101
    Abstract: A light emitting device in accordance with the present invention includes a light emitting element and a light sensor for detecting the luminous intensity of the light emitted from the light emitting element. The light emitting element includes a lower electrode, a light emitting material layer including at least a light emitting layer, and an upper electrode having light transparency, which are formed on a substrate in the named order. One of the lower electrode and the upper electrode acts as a cathode, and the other acts as an anode. The light sensor is formed on the light emitting element.
    Type: Grant
    Filed: April 12, 2006
    Date of Patent: November 24, 2009
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Kazuhiko Hayashi, Takashi Fukuchi, Shinnzo Tsuboi
  • Organic EL device
    Patent number: 7465963
    Abstract: An organic EL device having a light emitting element including a first electrode (2), a second electrode (4) of transparent conductive film, and a light emitting organic material layer (9) formed between said first electrode (2) and said second electrode (4), wherein said transparent conductive film is made of a metal oxide deficient in oxygen as compared with stoichiometric composition. Since the transparent conductive film (4) directly in contact with the light emitting organic material layer (9) over a wide area is made of the metal oxide deficient in oxygen as compared with stoichiometric composition, the transparent conductive film can absorb moisture and oxygen which may possibly absorbed by the light emitting organic material layer so that the light emitting organic material layer is prevented from deteriorating, and the long emission lifetime of the element can be ensured.
    Type: Grant
    Filed: February 4, 2002
    Date of Patent: December 16, 2008
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Kazuhiko Hayashi, Atsushi Oda, Takashi Fukuchi, Shinnzo Tsuboi
  • Light emitting device having a sensor for determining luminous intensity
    Patent number: 7045820
    Abstract: A light emitting device in accordance with the present invention includes a light emitting element and a light sensor for detecting the luminous intensity of the light emitted from the light emitting element. The light emitting element includes a lower electrode, a light emitting material layer including at least a light emitting layer, and an upper electrode having light transparency, which are formed on a substrate in the named order. One of the lower electrode and the upper electrode acts as a cathode, and the other acts as an anode. The light sensor is formed on the light emitting element.
    Type: Grant
    Filed: February 27, 2002
    Date of Patent: May 16, 2006
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Kazuhiko Hayashi, Takashi Fukuchi, Shinnzo Tsuboi
  • Organic el device
    Publication number: 20040065877
    Abstract: An organic EL device having a light emitting element including a first electrode (2), a second electrode (4) of transparent conductive film, and a light emitting organic material layer (9) formed between said first electrode (2) and said second electrode (4), wherein said transparent conductive film is made of a metal oxide deficient in oxygen as compared with stoichiometric composition. Since the transparent conductive film (4) directly in contact with the light emitting organic material layer (9) over a wide area is made of the metal oxide deficient in oxygen as compared with stoichiometric composition, the transparent conductive film can absorb moisture and oxygen which may possibly absorbed by the light emitting organic material layer so that the light emitting organic material layer is prevented from deteriorating, and the long emission lifetime of the element can be ensured.
    Type: Application
    Filed: August 8, 2003
    Publication date: April 8, 2004
    Inventors: Kazuhiko Hayashi, Atsushi Oda, Takeshi Fukuchi, Shinnzo Tsuboi
  • Organic light-emitting device
    Patent number: 6593689
    Abstract: An organic light-emitting device is provided, which increases the proportion of available light as much as possible and which produces higher brightness with less input power.
    Type: Grant
    Filed: February 28, 2002
    Date of Patent: July 15, 2003
    Assignee: NEC Corporation
    Inventors: Kazuhiko Hayashi, Takashi Fukuchi, Shinnzo Tsuboi, Atsushi Oda
  • Light emitting device and light emitting system
    Publication number: 20030047736
    Abstract: A light emitting device in accordance with the present invention includes a light emitting element and a light sensor for detecting the luminous intensity of the light emitted from the light emitting element. The light emitting element includes a lower electrode, a light emitting material layer including at least a light emitting layer, and an upper electrode having light transparency, which are formed on a substrate in the named order. One of the lower electrode and the upper electrode acts as a cathode, and the other acts as an anode. The light sensor is formed on the light emitting element.
    Type: Application
    Filed: February 27, 2002
    Publication date: March 13, 2003
    Applicant: NEC Corporation
    Inventors: Kazuhiko Hayashi, Takashi Fukuchi, Shinnzo Tsuboi
  • Organic light-emitting device
    Publication number: 20020121859
    Abstract: An organic light-emitting device is provided, which increases the proportion of available light as much as possible and which produces higher brightness with less input power.
    Type: Application
    Filed: February 28, 2002
    Publication date: September 5, 2002
    Inventors: Kazuhiko Hayashi, Takashi Fukuchi, Shinnzo Tsuboi, Atsushi Oda