Patents by Inventor Yuki Nagura

Yuki Nagura 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).

  • Publication number: 20100196761
    Abstract: To provide a transition metal compound granule serving as a raw material for a cathode active material for a lithium secondary battery, which has high packing density, large volume capacity density and high safety and which is excellent in durability for charge and discharge cycles. A transition metal compound granule serving as a raw material for a positive electrode material for a lithium ion secondary battery, which comprises particles containing at least one element selected from the group consisting of nickel, cobalt and manganese and having an average particle size of the primary particles being at most 1 ?m and which is substantially spherical and has an average particle size D50 of from 10 to 40 ?m and an average pore size of at most 1 ?m.
    Type: Application
    Filed: March 31, 2010
    Publication date: August 5, 2010
    Applicant: AGC Seimi Chemical Co., Ltd.
    Inventors: Koji Tatsumi, Yuki Nagura, Kazuya Hiratsuka