Patents by Inventor Takeshi Shioya

Takeshi Shioya 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).

  • Compound, charge transporting material and organic electroluminescent element
    Patent number: 7777043
    Abstract: An object of the invention is to provide a charge transporting material having an excellent heat resistance, excellent filming properties, an excellent charge transporting ability, and excellent light-emitting characteristics and, also, to provide an organic electroluminescent element providing a high luminance and a highly luminous efficiency and having a long life. The invention relates to a charge transporting material comprising a compound having within the molecule two or more pyridine rings substituted at 2-, 4- and 6-positions thereof, which rings do not substantially conjugate each other (provided that the 3- and 5-positions of the pyridine rings may be substituted) and an organic electroluminescent element using the charge transporting material.
    Type: Grant
    Filed: January 31, 2006
    Date of Patent: August 17, 2010
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Masayoshi Yabe, Hideki Sato, Masayo Fugono, Takeshi Shioya, Masako Takeuchi
  • Binaphthol based chromophores for the fabrication of blue organic light emitting diodes
    Patent number: 7442447
    Abstract: A blue electroluminescent material based on a binaphtyl compound of the general formula (I). Particular embodiments having the general formula have good solubilities in common organic solvents, resist crystallization and can be sublimed in a device fabrication process. These properties enable the fabrication of organic electroluminescent devices.
    Type: Grant
    Filed: January 16, 2004
    Date of Patent: October 28, 2008
    Assignee: The Regents of the University of California
    Inventors: Guillermo C. Bazan, Hadjar Benmansour, Yoshiharu Sato, Takeshi Shioya
  • Compound, charge transporting material and organic electroluminescent element
    Publication number: 20060186796
    Abstract: An object of the invention is to provide a charge transporting material having an excellent heat resistance, excellent filming properties, an excellent charge transporting ability, and excellent light-emitting characteristics and, also, to provide an organic electroluminescent element providing a high luminance and a highly luminous efficiency and having a long life. The invention relates to a charge transporting material comprising a compound having within the molecule two or more pyridine rings substituted at 2-, 4- and 6-positions thereof, which rings do not substantially conjugate each other (provided that the 3- and 5-positions of the pyridine rings may be substituted) and an organic electroluminescent element using the charge transporting material.
    Type: Application
    Filed: January 31, 2006
    Publication date: August 24, 2006
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Masayoshi Yabe, Hideki Sato, Masayo Fugono, Takeshi Shioya, Masako Takeuchi
  • Binaphthol based chromophores for the fabrication of blue organic light emitting diodes
    Publication number: 20040151945
    Abstract: A blue electroluminescent material based on a binaphtyl compound of the general formula (I). Particular embodiments having the general formula have good solubilities in common organic solvents, resist crystallization and can be sublimed in a device fabrication process. These properties enable the fabrication of organic electroluminescent devices.
    Type: Application
    Filed: January 16, 2004
    Publication date: August 5, 2004
    Inventors: Guillermo C. Bazan, Hadjar Benmansour, Yoshiharu Sato, Takeshi Shioya