Patents by Inventor Tomoki Hirono

Tomoki Hirono 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).

  • Si-based-alloy anode material
    Patent number: 9508990
    Abstract: Disclosed is a Si-based alloy anode material for lithium ion secondary batteries, including an alloy phase with a Si principal phase including Si and a compound phase including two or more elements, which includes a first additional element A selected from Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zr, Nb and Mg and a low-melting second additional element B selected from S, Se, Te, Sn, In, Ga, Pb, Bi, Zn, Al. This compound phase includes (i) a first compound phase including Si and the first additional element A; a second compound phase including the first additional element A and the second additional element B; and one or both of a third compound phase including two or more of the second additional elements B and a single phase of the second additional element B.
    Type: Grant
    Filed: January 30, 2013
    Date of Patent: November 29, 2016
    Assignee: Sanyo Special Steel Co., Ltd.
    Inventors: Tomoki Hirono, Tetsuro Kariya, Toshiyuki Sawada
  • Si-Based-Alloy Anode Material
    Publication number: 20140370386
    Abstract: Disclosed is a Si-based alloy anode material for lithium ion secondary batteries, including an alloy phase with a Si principal phase including Si and a compound phase including two or more elements, which includes a first additional element A selected from Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zr, Nb and Mg and a low-melting second additional element B selected from S, Se, Te, Sn, In, Ga, Pb, Bi, Zn, Al. This compound phase includes (i) a first compound phase including Si and the first additional element A; a second compound phase including the first additional element A and the second additional element B; and one or both of a third compound phase including two or more of the second additional elements B and a single phase of the second additional element B.
    Type: Application
    Filed: January 30, 2013
    Publication date: December 18, 2014
    Inventors: Tomoki Hirono, Tetsuro Kariya, Toshiyuki Sawada