Patents by Inventor Makiko TKAHASHI

Makiko TKAHASHI 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).

  • LITHIUM ION SECONDARY BATTERY SYSTEM
    Publication number: 20160218397
    Abstract: An object of the present invention is to provide a battery system improved in output characteristics and/or storage characteristic while taking advantage of high energy density of a lithium ion secondary battery comprising a positive electrode containing a positive electrode active material having an operating potential of 4.5 V or more relative to a lithium metal. The present invention relates to a battery system having a first battery consisting of a 5 V-level battery(s), a second battery consisting of a 4 V-level battery(s), and a control system.
    Type: Application
    Filed: September 29, 2014
    Publication date: July 28, 2016
    Inventors: Hideaki SASAKI, Takehiro NOGUCHI, Yuukou KATOU, Makiko TKAHASHI