Patents by Inventor Suguru Ohta

Suguru Ohta 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).

  • Vanadium battery
    Patent number: 9419279
    Abstract: A solid vanadium rechargeable battery, including; a first vanadium compound containing vanadium, whose oxidation number changes between 2 and 3 due to oxidation and reduction reactions, or solid vanadium salt or complex salt including such vanadium, and a surface that becomes a negative electrode; a second vanadium compound containing vanadium, whose oxidation number changes between 5 and 4 due to reduction and oxidation reactions, or solid vanadium salt or complex salt including such vanadium, and a surface that becomes a positive electrode; and a separator sandwiched between the first and the second vanadium compounds for selectively allowing ions to pass through, is provided.
    Type: Grant
    Filed: October 20, 2010
    Date of Patent: August 16, 2016
    Assignee: TOHOKU UNIVERSITY
    Inventors: Tomoo Yamamura, Xiongwei Wu, Isamu Sato, Hiroki Sakuraba, Kenji Shirasaki, Suguru Ohta
  • VANADIUM BATTERY
    Publication number: 20120301787
    Abstract: A solid vanadium rechargeable battery, including; a first vanadium compound containing vanadium, whose oxidation number changes between 2 and 3 due to oxidation and reduction reactions, or solid vanadium salt or complex salt including such vanadium, and a surface that becomes a negative electrode; a second vanadium compound containing vanadium, whose oxidation number changes between 5 and 4 due to reduction and oxidation reactions, or solid vanadium salt or complex salt including such vanadium, and a surface that becomes a positive electrode; and a separator sandwiched between the first and the second vanadium compounds for selectively allowing ions to pass through, is provided.
    Type: Application
    Filed: October 20, 2010
    Publication date: November 29, 2012
    Applicant: TOHOKU UNIVERSITY
    Inventors: Tomoo Yamamura, Xiongwei Wu, Isamu Sato, Hiroki Sakuraba, Kenji Shirasaki, Suguru Ohta