Patents by Inventor Daizo KANDA

Daizo KANDA 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).

  • Organic electroluminescence device
    Patent number: 10505119
    Abstract: The organic EL device of the present invention has an anode, a hole transport layer, a luminous layer, an electron transport layer, and a cathode in the order of description. The hole transport layer includes an arylamine compound represented by the following general formula (1): in the formula, Ar1 to Ar4 each represent a monovalent aromatic hydrocarbon group or a monovalent aromatic heterocyclic group, and the luminous layer includes an N-aromatic substituted nitrogen-containing heterocyclic compound.
    Type: Grant
    Filed: January 5, 2016
    Date of Patent: December 10, 2019
    Assignees: HODOGAYA CHEMICAL CO., LTD., SFC CO., LTD.
    Inventors: Norimasa Yokoyama, Shuichi Hayashi, Takeshi Yamamoto, Naoaki Kabasawa, Daizo Kanda, Shunji Mochiduki, Se-Jin Lee, Oun-gyu Lee, Bong-Ki Shin
  • Organic electroluminescence device having at least an a node, a hole injection layer, a first hole transport layer. A second hole transport layer a luminous layer, an electron transport layer, and a cathode
    Patent number: 10276800
    Abstract: The present invention provides an organic EL device having at least an anode, a hole injection layer, a first hole transport layer, a second hole transport layer, a luminous layer, an electron transport layer, and a cathode in order of description. The second hole transport layer includes an arylamine compound having a specific structure, and the electron transport layer includes a pyrimidine derivative having a specific structure. The organic EL device of the present invention has a high efficiency, a low driving voltage, and a longer life.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: April 30, 2019
    Assignee: HODOGAYA CHEMICAL CO., LTD.
    Inventors: Shuichi Hayashi, Daizo Kanda, Kazunori Togashi
  • ORGANIC ELECTROLUMINESCENCE DEVICE
    Publication number: 20180026198
    Abstract: The organic EL device of the present invention has an anode, a hole transport layer, a luminous layer, an electron transport layer, and a cathode in the order of description. The hole transport layer includes an arylamine compound represented by the following general formula (1): in the formula, Ar1 to Ar4 each represent a monovalent aromatic hydrocarbon group or a monovalent aromatic heterocyclic group, and the luminous layer includes an N-aromatic substituted nitrogen-containing heterocyclic compound.
    Type: Application
    Filed: January 5, 2016
    Publication date: January 25, 2018
    Applicants: HODOGAYA CHEMICAL CO., LTD., SFC CO., LTD.
    Inventors: Norimasa YOKOYAMA, Shuichi HAYASHI, Takeshi YAMAMOTO, Naoaki KABASAWA, Daizo KANDA, Shunji MOCHIDUKI, Se-Jin LEE, Oun-gyu LEE, Bong-Ki SHIN
  • ORGANIC ELECTROLUMINESCENCE DEVICE
    Publication number: 20170317291
    Abstract: The present invention provides an organic EL device having at least an anode, a hole injection layer, a first hole transport layer, a second hole transport layer, a luminous layer, an electron transport layer, and a cathode in order of description. The second hole transport layer includes an arylamine compound having a specific structure, and the electron transport layer includes a pyrimidine derivative having a specific structure. The organic EL device of the present invention has a high efficiency, a low driving voltage, and a longer life.
    Type: Application
    Filed: November 12, 2015
    Publication date: November 2, 2017
    Applicant: HODOGAYA CHEMICAL CO., LTD.
    Inventors: Shuichi HAYASHI, Daizo KANDA, Kazunori TOGASHI