Patents by Inventor Kouichi Tokudome

Kouichi Tokudome 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).

  • Composition for manufacturing doped or undoped zinc oxide thin film and method for manufacturing zinc oxide thin film using same
    Patent number: 9096441
    Abstract: Disclosed is a composition for forming a zinc oxide thin film, which contains an organic zinc compound as a starting material, is not ignitable, and can be easily handled. The composition for forming a zinc oxide thin film is capable of forming a transparent zinc oxide thin film which is not doped or doped with a group 3B element by being heated at 300° C. or less. Also disclosed is a method for obtaining a transparent zinc oxide thin film, which is not doped or doped with a group 3B element, using the composition. Specifically, the composition for forming a zinc oxide thin film contains a product which is obtained by partially hydrolyzing an organic zinc compound by adding water to the organic zinc compound or a solution of the organic zinc compound and a group 3B element compound. In cases when a group 3B element compound is contained, the molar ratio of the group 3B element compound to the organic zinc compound is within the range of 0.005-0.3.
    Type: Grant
    Filed: April 21, 2010
    Date of Patent: August 4, 2015
    Assignee: TOSOH FINECHEM CORPORATION
    Inventors: Koichiro Inaba, Kouji Toyota, Kenichi Haga, Kouichi Tokudome
  • COMPOSITION FOR MANUFACTURING DOPED OR UNDOPED ZINC OXIDE THIN FILM AND METHOD FOR MANUFACTURING ZINC OXIDE THIN FILM USING SAME
    Publication number: 20120094019
    Abstract: Disclosed is a composition for forming a zinc oxide thin film, which contains an organic zinc compound as a starting material, is not ignitable, and can be easily handled. The composition for forming a zinc oxide thin film is capable of forming a transparent zinc oxide thin film which is not doped or doped with a group 3B element by being heated at 300° C. or less. Also disclosed is a method for obtaining a transparent zinc oxide thin film, which is not doped or doped with a group 3B element, using the composition. Specifically, the composition for forming a zinc oxide thin film contains a product which is obtained by partially hydrolyzing an organic zinc compound by adding water to the organic zinc compound or a solution of the organic zinc compound and a group 3B element compound. In cases when a group 3B element compound is contained, the molar ratio of the group 3B element compound to the organic zinc compound is within the range of 0.005-0.3.
    Type: Application
    Filed: April 21, 2010
    Publication date: April 19, 2012
    Applicant: Tocoh Finefhem Corporation
    Inventors: Koichiro Inaba, Kouji Toyota, Kenichi Haga, Kouichi Tokudome