Patents by Inventor Toshihiko Ise

Toshihiko Ise 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 electroluminescent element and compounds for use in the element
    Patent number: 8147987
    Abstract: An organic electroluminescent element comprises: a pair of electrodes; and one or more organic compound layers at least one of which is a light-emitting layer, the one or more organic compound layers being provided between the pair of electrodes, wherein at least one of the one or more organic compound layers comprises a compound represented by general formula (Z): wherein R31 and R32 each represents a hydrogen atom or a substituent, R3A represents a substituent other than an aromatic hetero ring connected through a nitrogen atom, or a hydrogen atom, X31 to X38 each represents a substituted or unsubstituted carbon atom or a nitrogen atom, and Y31 to Y33 each represents a nitrogen atom or C—R3B (wherein R3B represents a substituent other than an aromatic hetero ring connected through a nitrogen atom, or a hydrogen atom).
    Type: Grant
    Filed: February 23, 2007
    Date of Patent: April 3, 2012
    Assignee: Fujifilm Corporation
    Inventors: Itaru Osaka, Tatsuya Igarashi, Toshihiko Ise, Eiji Fukuzaki, Satoshi Sano
  • Organic electroluminescent element and compounds for use in the element
    Publication number: 20070202357
    Abstract: An organic electroluminescent element comprises: a pair of electrodes; and one or more organic compound layers at least one of which is a light-emitting layer, the one or more organic compound layers being provided between the pair of electrodes, wherein at least one of the one or more organic compound layers comprises a compound represented by general formula (Z): wherein R31 and R32 each represents a hydrogen atom or a substituent, R3A represents a substituent other than an aromatic hetero ring connected through a nitrogen atom, or a hydrogen atom, X31 to X38 each represents a substituted or unsubstituted carbon atom or a nitrogen atom, and Y31 to Y33 each represents a nitrogen atom or C—R3B (wherein R3B represents a substituent other than an aromatic hetero ring connected through a nitrogen atom, or a hydrogen atom).
    Type: Application
    Filed: February 23, 2007
    Publication date: August 30, 2007
    Applicant: FUJIFILM Corporation
    Inventors: Itaru Osaka, Tatsuya Igarashi, Toshihiko Ise, Eiji Fukuzaki, Satoshi Sano