Patents by Inventor Yoshitaka YOSHIWARA

Yoshitaka YOSHIWARA 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).

  • METHOD FOR RECOVERING LITHIUM AND METHOD FOR PROCESSING LITHIUM ION SECONDARY BATTERY
    Publication number: 20230104457
    Abstract: Provided is a method for recovering lithium, for recovering lithium from a lithium ion secondary battery, the method including: a thermal treatment step of thermally treating a lithium ion secondary battery having a residual voltage higher than or equal to 80% of a rated voltage, to obtain a thermally treated product; a pulverizing step of pulverizing the thermally treated product, to obtain a pulverized product; and a lithium recovering step of recovering lithium from the pulverized product.
    Type: Application
    Filed: March 9, 2021
    Publication date: April 6, 2023
    Applicant: DOWA ECO-SYSTEM CO., LTD.
    Inventors: Chihiro NISHIKAWA, Yoshihiro HONMA, Ryoei WATANABE, Masataka YAMASHITA, Yoshiki ITO, Yoshitaka YOSHIWARA