Patents by Inventor Qichun Zhang

Qichun Zhang 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).

  • COVALENT ORGANIC FRAMEWORK AND ITS ELECTOCHEMICAL USE
    Publication number: 20240079591
    Abstract: An electrode material for an energy storage device including a covalent organic framework includes a plurality of aromatic moieties each linked by at least one thioether linkage. An anode including said electrode material, and an energy storage device having said anode.
    Type: Application
    Filed: January 18, 2023
    Publication date: March 7, 2024
    Inventors: Qichun Zhang, Chun-Sing Lee, Chenchen Wang, Shen Xu
  • COVALENT ORGANIC FRAMEWORK AND ENERGY STORAGE DEVICE
    Publication number: 20240063390
    Abstract: A covalent organic framework includes a plurality of aromatic moieties each linked by at least one thioether linkage, and its preparation method. An energy storage device includes a cell with an electrode including the covalent organic framework.
    Type: Application
    Filed: August 16, 2022
    Publication date: February 22, 2024
    Inventors: Qichun Zhang, Chun Sing Lee, Shen Xu, Chenchen Wang
  • Cordless tool system with a battery pack having a heat absorbing device
    Patent number: 9979208
    Abstract: A tool discharges one battery pack and a charger simultaneously charges another battery pack to provide for continuous and circular operation of the tool. Tool system includes a tool and a lithium based battery pack having a nominal voltage of at least 56 volts for supplying power to the tool. A heat absorbing device is associated with the battery pack and includes a phase-change material.
    Type: Grant
    Filed: December 5, 2016
    Date of Patent: May 22, 2018
    Assignee: Chevron (HK) Limited
    Inventors: Dezhong Yang, Qichun Zhang, Haishen Xu, Junya Duan, Hao Du
  • CORDLESS TOOL SYSTEM
    Publication number: 20170149254
    Abstract: A tool discharges one battery pack and a charger simultaneously charges another battery pack to provide for continuous and circular operation of the tool. Tool system includes a tool and a lithium based battery pack having a nominal voltage of at least 56 volts for supplying power to the tool. A heat absorbing device is associated with the battery pack and includes a phase-change material.
    Type: Application
    Filed: December 5, 2016
    Publication date: May 25, 2017
    Inventors: Dezhong Yang, Qichun Zhang, Haishen Xu, Junya Duan, Hao Du
  • Cordless tool system
    Patent number: 9548614
    Abstract: A tool discharges one battery pack and a charger simultaneously charges another battery pack to provide for continuous and circular operation of the tool. Tool system includes a tool and a lithium based battery pack having a nominal voltage of at least 56 volts for supplying power to the tool. A heat absorbing device is associated with the battery pack and includes a phase-change material.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: January 17, 2017
    Assignee: Chevron Intellectual Property Limited
    Inventors: Dezhong Yang, Qichun Zhang, Haishen Xu, Junya Duan, Hao Du
  • CORDLESS TOOL SYSTEM
    Publication number: 20150380958
    Abstract: A tool discharges one battery pack and a charger simultaneously charges another battery pack to provide for continuous and circular operation of the tool. Tool system includes a tool and a lithium based battery pack having a nominal voltage of at least 56 volts for supplying power to the tool. A heat absorbing device is associated with the battery pack and includes a phase-change material.
    Type: Application
    Filed: January 15, 2015
    Publication date: December 31, 2015
    Inventors: Dezhong Yang, Qichun Zhang, Haishen Xu, Junya Duan, Hao Du
  • Cordless tool system
    Patent number: 8963497
    Abstract: A tool discharges one battery pack and a charger simultaneously charges another battery pack to provide for continuous and circular operation of the tool. The ratio of the discharging time to the charging time is approximately 25:35.
    Type: Grant
    Filed: February 27, 2012
    Date of Patent: February 24, 2015
    Assignee: Chervon (HK) Limited
    Inventors: Dezhong Yang, Qichun Zhang, Haishen Xu, Junya Duan, Hao Du
  • Thermoelectrics compositions comprising nanoscale inclusions in a chalcogenide matrix
    Patent number: 8778214
    Abstract: Composites comprising a continuous matrix formed from compounds having a rock salt structure (represented by the structure “MQ”) and inclusions comprising chalcogenide compounds having a rock salt structure (represented by the structure “AB”) are provided. Composites having the structure MQ-ABC2, where MQ represents a matrix material and ABC2 represents inclusions comprising a chalcogenide dispersed in the matrix material are also provided.
    Type: Grant
    Filed: September 15, 2010
    Date of Patent: July 15, 2014
    Assignee: Northwestern University
    Inventors: Mercouri G. Kanatzidis, Qichun Zhang, Steven N. Girard, Kanishka Biswas
  • CORDLESS TOOL SYSTEM
    Publication number: 20120227994
    Abstract: A tool discharges one battery pack and a charger simultaneously charges another battery pack to provide for continuous and circular operation of the tool. The ratio of the discharging time to the charging time is approximately 25:35.
    Type: Application
    Filed: February 27, 2012
    Publication date: September 13, 2012
    Applicant: CHERVON (HK) LIMITED
    Inventors: Dezhong Yang, Qichun Zhang, Haishen Xu, Junya Duan, Hao Du
  • THERMOELECTRICS COMPOSITIONS COMPRISING NANOSCALE INCLUSIONS IN A CHALCOGENIDE MATRIX
    Publication number: 20110073797
    Abstract: Composites comprising a continuous matrix formed from compounds having a rock salt structure (represented by the structure “MQ”) and inclusions comprising chalcogenide compounds having a rock salt structure (represented by the structure “AB”) are provided. Composites having the structure MQ-ABC2, where MQ represents a matrix material and ABC2 represents inclusions comprising a chalcogenide dispersed in the matrix material are also provided.
    Type: Application
    Filed: September 15, 2010
    Publication date: March 31, 2011
    Inventors: Mercouri G. Kanatzidis, Qichun Zhang, Steven N. Girard, Kanishka Biswas