Patents by Inventor Takao Hiraide

Takao Hiraide 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).

  • Thiophene derivative polymer and a polymer composition thereof
    Patent number: 4892678
    Abstract: A thiophene derivative polymer comprising repeating units of the formula: ##STR1## (wherein R stands for one member selected from the group consisting of ##STR2## and a polymer composition having the polymer doped with an anion and consequently possessing a semiconducting characteristic.
    Type: Grant
    Filed: February 6, 1989
    Date of Patent: January 9, 1990
    Assignee: Agency of Industrial Science & Technology, Ministry of International Trade & Industry
    Inventors: Susumu Tanaka, Masaaki Sato, Kyoji Kaeriyama, Yoshio Suda, Takao Hiraide
  • Thiophene derivative polymer and a polymer composition thereof
    Patent number: 4877852
    Abstract: A thiophene derivative polymer comprising repeating units of the formula: ##STR1## (wherein R stands for one member selected from the group consisting of ##STR2## and a polymer composition having the polymer doped with an anion and consequently possessing a semiconducting characteristic.
    Type: Grant
    Filed: February 12, 1988
    Date of Patent: October 31, 1989
    Assignees: Agency of Industrial Science and Technology, Ministry of International Trade and Industry
    Inventors: Susumu Tanaka, Masaaki Sato, Kyoji Kaeriyama, Yoshio Suda, Takao Hiraide