Patents by Inventor Shuji Takato

Shuji Takato 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).

  • Composite active material for lithium ion secondary batteries and method for producing same
    Patent number: 10418629
    Abstract: Provided are: an anode active material for a lithium ion secondary battery with which high initial efficiency and battery capacity can be maintained and excellent cycling characteristics are achieved; and a method for producing such an active material. The anode active material for a lithium ion secondary battery, the active material comprising a Si compound and a carbonaceous material or a carbonaceous material and graphite, is obtained by a method comprising the steps of: mixing a Si compound, a carbon precursor, and, as appropriate, graphite powder; performing granulation/compaction; pulverizing the mixture to form composite particles; firing the composite particles in an inert gas atmosphere; and subjecting the pulverized and conglobated composite powder or the fired powder to air classification.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: September 17, 2019
    Assignee: TOSOH CORPORATION
    Inventors: Hidehiko Misaki, Masanori Abe, Toru Tsuyoshi, Masanori Kohgo, Shuji Takato, Taichi Arakawa, Kohei Iwanaga
  • COMPOSITE ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERIES AND METHOD FOR PRODUCING SAME
    Publication number: 20170084913
    Abstract: Provided are: an anode active material for a lithium ion secondary battery with which high initial efficiency and battery capacity can be maintained and excellent cycling characteristics are achieved; and a method for producing such an active material. The anode active material for a lithium ion secondary battery, the active material comprising a Si compound and a carbonaceous material or a carbonaceous material and graphite, is obtained by a method comprising the steps of: mixing a Si compound, a carbon precursor, and, as appropriate, graphite powder; performing granulation/compaction; pulverizing the mixture to form composite particles; firing the composite particles in an inert gas atmosphere; and subjecting the pulverized and conglobated composite powder or the fired powder to air classification.
    Type: Application
    Filed: March 20, 2015
    Publication date: March 23, 2017
    Applicant: TOSOH CORPORATION
    Inventors: Hidehiko MISAKI, Masanori ABE, Toru TSUYOSHI, Masanori KOHGO, Shuji TAKATO, Taichi ARAKAWA, Kohei IWANAGA
  • Molded abrasive product and polishing wheel using it
    Patent number: 6328644
    Abstract: A molded abrasive product which is made mainly of a zirconia component and which has a bulk density of from 0.5 to 5.2 g/cm3, a BET specific surface area of from 0.1 to 100 m2/g and an average particle size of from 0.005 to 50 &mgr;m.
    Type: Grant
    Filed: April 7, 2000
    Date of Patent: December 11, 2001
    Assignee: Tosoh Corporation
    Inventors: Hideto Kuramochi, Shuji Takato, Yoshitaka Kubota