Patents Examined by Brian N. Hearn
  • Secondary cell
    Patent number: 4879192
    Abstract: A secondary cell comprises opposed positive and negative electrodes of polymers, each having conjugated double bonds, such as polyacetylene, poly-phenylene, polythienylene and polypyrrole, and an electrolyte solution comprising an electrolyte dissolved in a nitrile compound and being interposed between the two electrodes.
    Type: Grant
    Filed: September 20, 1984
    Date of Patent: November 7, 1989
    Assignees: Hitachi Ltd., Showa Denka K.K.
    Inventors: Shigeoki Nishimura, Kazunori Fujita, Hiroyuki Sugimoto, Atsuko Tohyama, Noboru Ebato, Shinpei Matsuda