Patents by Inventor Fumiko Kako

Fumiko Kako 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).

  • High molecular compound, method for producing same, and light-emitting element
    Patent number: 9478744
    Abstract: A polymer compound is provided for achieving satisfactory brightness even at a low driving voltage when applied to a light-emitting device. A preferred embodiment includes multiple first groups and a block (A) having a structure in which the first groups are linked by a second group represented by formula (0-0), and includes at least one of a group represented by formula (0-1) or a group represented by formula (0-2) as the first group; wherein Ar0 represents an optionally substituted arylene group or divalent aromatic heterocyclic group having a structure different from the first group; n represents an average chain length of Ar0 and equals 1.0 to 8.0; and X11 to X16 and X21 to X25 each represent a carbon atom or a nitrogen atom, where two or three of X11 to X16 are a nitrogen atom and three of X21 to X25 are a nitrogen atom.
    Type: Grant
    Filed: November 28, 2011
    Date of Patent: October 25, 2016
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Osamu Goto, Fumiko Kako, Masayuki Soga, Kazuei Ohuchi
  • HIGH MOLECULAR COMPOUND, METHOD FOR PRODUCING SAME, AND LIGHT-EMITTING ELEMENT
    Publication number: 20130248778
    Abstract: A polymer compound is provided for achieving satisfactory brightness even at a low driving voltage when applied to a light-emitting device. A preferred embodiment includes multiple first groups and a block (A) having a structure in which the first groups are linked by a second group represented by formula (0-0), and includes at least one of a group represented by formula (0-1) or a group represented by formula (0-2) as the first group; wherein Ar0 represents an optionally substituted arylene group or divalent aromatic heterocyclic group having a structure different from the first group; n represents an average chain length of Ar0 and equals 1.0 to 8.0; and X11 to X16 and X21 to X25 each represent a carbon atom or a nitrogen atom, where two or three of X11 to X16 are a nitrogen atom and three of X21 to X25 are a nitrogen atom.
    Type: Application
    Filed: November 28, 2011
    Publication date: September 26, 2013
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Osamu Goto, Fumiko Kako, Masayuki Soga, Kazuei Ohuchi