Patents by Inventor Masayoshi Koutake

Masayoshi Koutake 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).

  • Patent number: 8623478
    Abstract: Provided is an ink that is the most suitable for a method for forming an organic transistor by transferring a pattern using a liquid-repellent transfer substrate, for example, a microcontact printing method or a reverse printing method. Specifically, provided is an organic semiconductor ink composition which can provide a uniform ink coating film on a surface of a liquid-repellent transfer substrate and which can provide a dry ink film or a semi-dry ink film capable of being easily transferred from the transfer substrate to a transfer-receiving base material. Also provided is a method for forming an organic semiconductor pattern of an organic transistor, the method using the organic semiconductor ink composition. The organic semiconductor ink composition used for obtaining a desired pattern by transferring an ink layer formed on a liquid-repellent transfer substrate to a printing base material contains an organic semiconductor, an organic solvent, and a fluorine-based surfactant.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: January 7, 2014
    Assignee: DIC Corporation
    Inventors: Masayoshi Koutake, Masanori Kasai, Hisatomo Yonehara, Kiyofumi Takano
  • Publication number: 20120100667
    Abstract: Provided is an ink that is the most suitable for a method for forming an organic transistor by transferring a pattern using a liquid-repellent transfer substrate, for example, a microcontact printing method or a reverse printing method. Specifically, provided is an organic semiconductor ink composition which can provide a uniform ink coating film on a surface of a liquid-repellent transfer substrate and which can provide a dry ink film or a semi-dry ink film capable of being easily transferred from the transfer substrate to a transfer-receiving base material. Also provided is a method for forming an organic semiconductor pattern of an organic transistor, the method using the organic semiconductor ink composition. The organic semiconductor ink composition used for obtaining a desired pattern by transferring an ink layer formed on a liquid-repellent transfer substrate to a printing base material contains an organic semiconductor, an organic solvent, and a fluorine-based surfactant.
    Type: Application
    Filed: March 30, 2010
    Publication date: April 26, 2012
    Applicant: DIC Corporation
    Inventors: Masayoshi Koutake, Masanori Kasai, Hisatomo Yonehara, Kiyofumi Takano
  • Patent number: 4701024
    Abstract: In order to make it possible to be adapted to be used for an integrated liquid crystal panel having a built-in direct touch-entry enabling device, a liquid crystal material made by dispersing many needle-shaped magnetic substance particles respectively coated with a surface active agent in a well known liquid crystal substance and a method of making the same. The liquid material can be utilized in the form of many encapsulated liquid material units combined with one another. In case such encapsulated liquid crystal material is used for a liquid crystal device, it need not be sealed with glass or the like and can be directly applied to paint any required part and, even if the painted part is curved during the use, it can develop its performance.
    Type: Grant
    Filed: December 1, 1986
    Date of Patent: October 20, 1987
    Assignee: Dai-ichi Seiko Kabushiki Kaisha
    Inventors: Shunsuke Kobayashi, Yoshihiko Matsuyama, Masayoshi Koutake