Patents by Inventor Chun-bin Li

Chun-bin Li 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).

  • Patent number: 8557020
    Abstract: A compound represented by General Formula (1) below, where R denotes a C1-C10 hydrocarbon group, Z denotes any one of a sulfide group, a sulfinyl group and a sulfonyl group, and n denotes an integer of 4 to 8 is described. A method for extracting metals and a metal recovery method using a metal extractant comprising the compound represented by General Formula (1) are also described.
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: October 15, 2013
    Assignees: Dowa Holdings Co., Ltd., Akita University
    Inventors: Fumio Hamada, Chun-Bin Li, Yoshihiko Kondo
  • Patent number: 8500846
    Abstract: The present invention is to provide a novel rare metal extractant containing a cyclic phenol sulfide derivative of the formula (1) and a method for extractive separation of rare metal(s) using the rare metal extractant with high efficiency.
    Type: Grant
    Filed: February 10, 2009
    Date of Patent: August 6, 2013
    Assignee: Akita University
    Inventors: Yoshihiko Kondo, Chun-bin Li, Manabu Yamada, Fumio Hamada
  • Publication number: 20110247459
    Abstract: To provide a compound represented by General Formula (1) below, where R denotes a C1-C10 hydrocarbon group, Z denotes any one of a sulfide group, a sulfinyl group and a sulfonyl group, and n denotes an integer of 4 to 8.
    Type: Application
    Filed: March 2, 2011
    Publication date: October 13, 2011
    Inventors: Fumio Hamada, Chun-Bin Li, Yoshihiko Kondo
  • Publication number: 20110011215
    Abstract: The present invention is to provide a novel rare metal extractant containing a cyclic phenol sulfide derivative of the formula (1) and a method for extractive separation of rare metal(s) using the rare metal extractant with high efficiency.
    Type: Application
    Filed: February 10, 2009
    Publication date: January 20, 2011
    Applicant: AKITA UNIVERSITY
    Inventors: Yoshihiko Kondo, Chun-bin Li, Manabu Yamada, Fumio Hamada
  • Patent number: D896215
    Type: Grant
    Filed: June 13, 2019
    Date of Patent: September 15, 2020
    Assignee: SHENZHEN LEADERMENT TECHNOLOGY CO., LTD.
    Inventor: Chun Bin Li
  • Patent number: D954696
    Type: Grant
    Filed: June 13, 2019
    Date of Patent: June 14, 2022
    Assignee: SHENZHEN LEADERMENT TECHNOLOGY CO., LTD.
    Inventor: Chun Bin Li
  • Patent number: D955376
    Type: Grant
    Filed: June 13, 2019
    Date of Patent: June 21, 2022
    Assignee: SHENZHEN LEADERMENT TECHNOLOGY CO., LTD.
    Inventor: Chun Bin Li