Patents by Inventor Eiichi Oono

Eiichi Oono 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).

  • Polynuclear fused aromatic ring type polymer and preparation thereof
    Patent number: 4463162
    Abstract: A condensation polymer having a .eta.sp/C=0.1-1.5, containing an anthracene unit in the main chain of the polymer, which is found to have various functions of ultraviolet absorption, fluorescence emission, photoconductivity, organic semiconductor characteristics, etc. as well as excellent flexibility and mechanical strength, is prepared by condensation of an anthracenediol compound with a dicarboxylic acid dihalide or a hydrocarbylene dihalide.
    Type: Grant
    Filed: December 4, 1981
    Date of Patent: July 31, 1984
    Assignee: Asahi-Dow Limited
    Inventors: Sumitaka Nogami, Tsuneo Wakabayashi, Eiichi Oono, Yoshiharu Kitahama, Isamu Iwami