Patents by Inventor Yang Yu Seok

Yang Yu Seok 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 and its production method, and compound
    Patent number: 8901543
    Abstract: An organic semiconductor device which has an organic semiconductor layer formed by crystallizing a compound represented by the following formula (1) from a solution of the compound: wherein X1, X2 and X3 represent O, S, Se or Te; at least one of R1, R2, R3 and R4 represents a group that has both an aromatic ring to form a ?-conjugated system with the skeleton to which it bonds, and a chainlike structure in which the number of the carbon atoms constituting the main chain is from 4 to 20, and the remaining ones represent a hydrogen atom or a substituent.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: December 2, 2014
    Assignee: Kyushu University National University Corporation
    Inventors: Chihaya Adachi, Takuma Yasuda, Yang Yu Seok, Hayato Kakizoe, Hiroyuki Mieno
  • ORGANIC SEMICONDUCTOR DEVICE AND ITS PRODUCTION METHOD, AND COMPOUND
    Publication number: 20130207081
    Abstract: An organic semiconductor device which has an organic semiconductor layer formed by crystallizing a compound represented by the following formula (1) from a solution of the compound: wherein X1, X2 and X3 represent O, S, Se or Te; at least one of R1, R2, R3 and R4 represents a group that has both an aromatic ring to form a ?-conjugated system with the skeleton to which it bonds, and a chainlike structure in which the number of the carbon atoms constituting the main chain is from 4 to 20, and the remaining ones represent a hydrogen atom or a substituent.
    Type: Application
    Filed: August 3, 2012
    Publication date: August 15, 2013
    Applicant: KYUSHU UNIVERSITY NATIONAL UNIVERSITY CORPORATION
    Inventors: Chihaya ADACHI, Takuma Yasuda, Yang Yu Seok, Hayato Kakizoe, Hiroyuki Mieno