Patents by Inventor Shunji Tomioka

Shunji Tomioka 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 semiconductor device, method for producing organic semiconductor device, organic electroluminescent device, and method for producing organic electroluminescent device
    Patent number: 7775845
    Abstract: A method for producing an organic semiconductor device including a plurality of organic semiconductor layers laminated on a substrate includes forming a film of a liquid composition on a target surface, the liquid composition being composed of a material constituting one of the plurality of the organic semiconductor layers, the material being dissolved or dispersed in a first solvent, and the target surface including a substrate surface and a surface of any of the other of the plurality of organic semiconductor layers; altering a portion of the film adjacent to the target surface, the portion having a predetermined thickness, in such a manner that the portion is not dissolved in a predetermined solvent containing the first solvent; and removing an unaltered portion of the film in the step of altering the portion with the predetermined solvent.
    Type: Grant
    Filed: May 30, 2007
    Date of Patent: August 17, 2010
    Assignee: Seiko Epson Corporation
    Inventors: Akio Fukase, Shunji Tomioka, Hirokazu Yanagihara
  • ORGANIC SEMICONDUCTOR DEVICE, METHOD FOR PRODUCING ORGANIC SEMICONDUCTOR DEVICE, ORGANIC ELECTROLUMINESCENT DEVICE, AND METHOD FOR PRODUCING ORGANIC ELECTROLUMINESCENT DEVICE
    Publication number: 20080074037
    Abstract: A method for producing an organic semiconductor device including a plurality of organic semiconductor layers laminated on a substrate includes forming a film of a liquid composition on a target surface, the liquid composition being composed of a material constituting one of the plurality of the organic semiconductor layers, the material being dissolved or dispersed in a first solvent, and the target surface including a substrate surface and a surface of any of the other of the plurality of organic semiconductor layers; altering a portion of the film adjacent to the target surface, the portion having a predetermined thickness, in such a manner that the portion is not dissolved in a predetermined solvent containing the first solvent; and removing an unaltered portion of the film in the step of altering the portion with the predetermined solvent.
    Type: Application
    Filed: May 30, 2007
    Publication date: March 27, 2008
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Akio FUKASE, Shunji TOMIOKA, Hirokazu YANAGIHARA