Patents by Inventor Atsuo Omaru

Atsuo Omaru 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).

  • Non aqueous electrolyte cell
    Patent number: 4959281
    Abstract: An improved non-aqueous electrolyte cell is disclosed in which specific carbonaceous material is used as an anode. The carbonaceous material has interlayer spacing d.sub.002 of not less than 3.70 A, true density not larger than 1.70 g/cm.sup.3 and no exothermic peak not less than 700.degree. C. upon differential thermal analysis under air stream. The combination with cathode active material containing Li in an amount not less than 250 mAH/g in term of charging/discharging capacity, provides superior cyclic life characterisitcs and large capacity.
    Type: Grant
    Filed: August 29, 1989
    Date of Patent: September 25, 1990
    Assignee: Sony Corporation
    Inventors: Yoshio Nishi, Hideto Azuma, Atsuo Omaru