Patents by Inventor Yuquan Chen

Yuquan Chen 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: 20240092726
    Abstract: The present disclosure discloses a method for synthesizing quinolones intermediates by a continuous flow reaction. Specifically, according to the method, a microchannel reactor is used, which improves the selectivity and conversion rate of the reaction, and the conversion rate of compound ii is increased to more than 95% and the yield is increased to more than 85%; avoids the use of a solvent such as methanol, and methyl tert-butyl ether, etc., in the intermittent reaction process, which simplifies the post-processing method, shortens the overall operation time from about 24 hours to a few minutes, greatly improving the production efficiency, and realizing the continuity and automation of the whole process; and thus makes the product have high purity and high yield, which is suitable for industrial production.
    Type: Application
    Filed: March 20, 2023
    Publication date: March 21, 2024
    Inventors: Li SHENG, Yuquan LUO, Gang FAN, Long CHEN, Junwei CHEN, Chunlei LV, Guofeng WU, Dadong SHEN, Lin ZHAO, Yunxia GONG
  • Patent number: 11660029
    Abstract: Provided in the present invention are a flexible electrochemical electrode, a subcutaneous continuous glucose monitoring sensor equipped with the electrochemical electrode, and a preparation method thereof. The electrode directly uses gold layers on both sides of a chemically plated film, respectively as a working electrode and a reference-counter electrode, so as to form an electrochemical two-electrode system. Petaloid platinum nanoparticles are electrodeposited on a surface of the configured working electrode as a catalytic layer; a carbon nanotube/Nafion mesh layer functions as an anti-interference layer, and is formed thereon with an enzyme biochemical sensitive layer by means of electrostatic adsorption, after crosslinking and curing in glutaraldehyde, polyurethane mass transfer is coated to limit a protection layer, so as to prepare a flexible continuous glucose monitoring sensor.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: May 30, 2023
    Assignees: VIVACHEK BIOTECH (HANGZHOU) CO., LTD, ZHEJIANG UNIVERSITY CITY COLLEGE
    Inventors: Yuquan Chen, Wei Chen
  • Patent number: 10879633
    Abstract: A connector housing comprises a body, an outside surface of the body having a pair of opposite mounting surfaces, a first contact surface, and a second contact surface, and a mounting portion disposed on each of the mounting surfaces. The mounting surfaces, the first contact surface and the second contact surface are perpendicular to each other. A distance between the mounting portion and the first contact surface is equal to a distance between the mounting portion and the second contact surface. The connector housing is interchangeably mounted with the first contact surface on a circuit board or with the second contact surface on the circuit board by a same mounting mechanism engaging the mounting portion.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: December 29, 2020
    Assignee: Tyco Electronics (Shanghai) Co. Ltd.
    Inventors: Xiaozhi Fu, Ming Shi, Hongtao Jiang, Yong Yang, Yuquan Chen, Leshu Yang
  • Publication number: 20190290170
    Abstract: Provided in the present invention are a flexible electrochemical electrode, a subcutaneous continuous glucose monitoring sensor equipped with the electrochemical electrode, and a preparation method thereof. The electrode directly uses gold layers on both sides of a chemically plated film, respectively as a working electrode and a reference-counter electrode, so as to form an electrochemical two-electrode system. Petaloid platinum nanoparticles are electrodeposited on a surface of the configured working electrode as a catalytic layer; a carbon nanotube/Nafion mesh layer functions as an anti-interference layer, and is formed thereon with an enzyme biochemical sensitive layer by means of electrostatic adsorption, after crosslinking and curing in glutaraldehyde, polyurethane mass transfer is coated to limit a protection layer, so as to prepare a flexible continuous glucose monitoring sensor.
    Type: Application
    Filed: May 12, 2017
    Publication date: September 26, 2019
    Inventors: Yuquan CHEN, Wei CHEN
  • Publication number: 20190190172
    Abstract: A connector housing comprises a body, an outside surface of the body having a pair of opposite mounting surfaces, a first contact surface, and a second contact surface, and a mounting portion disposed on each of the mounting surfaces. The mounting surfaces, the first contact surface and the second contact surface are perpendicular to each other. A distance between the mounting portion and the first contact surface is equal to a distance between the mounting portion and the second contact surface. The connector housing is interchangeably mounted with the first contact surface on a circuit board or with the second contact surface on the circuit board by a same mounting mechanism engaging the mounting portion.
    Type: Application
    Filed: December 14, 2018
    Publication date: June 20, 2019
    Applicant: Tyco Electronics (Shanghai) Co. Ltd.
    Inventors: Xiaozhi Fu, Ming Shi, Hongtao Jiang, Yong Yang, Yuquan Chen, Leshu Yang
  • Patent number: 10326226
    Abstract: A contact comprises a first cylindrical section, a second cylindrical section, and a transition section connected between the first cylindrical section and the second cylindrical section. The first cylindrical section has a first peripheral wall with a first diameter and a first protrusion rib disposed on the first peripheral wall. The second cylindrical section has a second peripheral wall with a second diameter less than the first diameter and a second protrusion rib disposed on the second peripheral wall.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: June 18, 2019
    Assignee: Tyco Electronics (Shanghai) Co. Ltd.
    Inventors: Hao Wang, Hongjun Yin, Yuquan Chen, Qijun Zhao
  • Publication number: 20180123277
    Abstract: A contact comprises a first cylindrical section, a second cylindrical section, and a transition section connected between the first cylindrical section and the second cylindrical section. The first cylindrical section has a first peripheral wall with a first diameter and a first protrusion rib disposed on the first peripheral wall. The second cylindrical section has a second peripheral wall with a second diameter less than the first diameter and a second protrusion rib disposed on the second peripheral wall.
    Type: Application
    Filed: November 1, 2017
    Publication date: May 3, 2018
    Applicant: Tyco Electronics (Shanghai) Co. Ltd.
    Inventors: Hao Wang, Hongjun Yin, Yuquan Chen, Qijun Zhao
  • Patent number: 9954305
    Abstract: An electric connector, comprising: a housing, an insulation body received in the housing, and a plurality of terminals held in a plurality of slots of the insulation body. The insulation body comprises a first half body and a second half body separate from the first half body The first half body and the second half body are configured to be detachably assembled together. Therefore, when connecting cables in field, the insulation body may be separated into the first half body and the second half body first. Then the cables may be connected to the terminals held in the first half body and the second half body. The first half body and the second half body may be assembled together after the cables are connected. Using such a detachable insulation body provides larger operation space, thus easing connecting the cables to the terminals in the field.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: April 24, 2018
    Assignee: Tyco Electronics (Shanghai) Co. Ltd.
    Inventors: Jianfei Yu, Qijun Zhao, Hao Wang, Zhigang Cheng, Bo Gao, Yuquan Chen
  • Patent number: 9882324
    Abstract: An electrical connector is disclosed. The electrical connector has an insulation body formed with a receiving slot and a terminal disposed in the receiving slot. The electrical connector is matable with an identical electrical connector.
    Type: Grant
    Filed: April 6, 2016
    Date of Patent: January 30, 2018
    Assignee: Tyco Electronics (Shanghai) Co. Ltd.
    Inventors: Ming Shi, Xiang Xu, Xiaozhi Fu, Yuquan Chen, Yong Yang
  • Patent number: 9478908
    Abstract: An electrical connector is disclosed having a first connector and a second connector. The first connector includes a first housing, a plurality of first terminals mounted in the first housing, and a first locking member positioned outside of the first housing. The second connector has a second housing, a plurality of second terminals complementary to the plurality of first terminals, and a second locking member positioned outside of the second housing and complementary with the first locking member.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: October 25, 2016
    Assignee: Tyco Electronics (Shanghai) Co. Ltd.
    Inventors: Hao Wang, Qijun Zhao, Yuquan Chen
  • Publication number: 20160301168
    Abstract: An electrical connector is disclosed. The electrical connector has an insulation body formed with a receiving slot and a terminal disposed in the receiving slot. The electrical connector is matable with an identical electrical connector.
    Type: Application
    Filed: April 6, 2016
    Publication date: October 13, 2016
    Applicant: Tyco Electronics (Shanghai) Co. Ltd.
    Inventors: Ming Shi, Xiang Xu, Xiaozhi Fu, Yuquan Chen, Yong Yang
  • Publication number: 20160049747
    Abstract: An electric connector, comprising: a housing, an insulation body received in the housing, and a plurality of terminals held in a plurality of slots of the insulation body. The insulation body comprises a first half body and a second half body separate from the first half body The first half body and the second half body are configured to be detachably assembled together. Therefore, when connecting cables in field, the insulation body may be separated into the first half body and the second half body first. Then the cables may be connected to the terminals held in the first half body and the second half body. The first half body and the second half body may be assembled together after the cables are connected. Using such a detachable insulation body provides larger operation space, thus easing connecting the cables to the terminals in the field.
    Type: Application
    Filed: August 12, 2015
    Publication date: February 18, 2016
    Applicant: TYCO ELECTRONICS (SHANGHAI) CO. LTD.
    Inventors: Jianfei Yu, Qijun Zhao, Hao Wang, Zhigang Cheng, Bo Gao, Yuquan Chen
  • Publication number: 20150118886
    Abstract: An electrical connector is disclosed having a first connector and a second connector. The first connector includes a first housing, a plurality of first terminals mounted in the first housing, and a first locking member positioned outside of the first housing. The second connector has a second housing, a plurality of second terminals complementary to the plurality of first terminals, and a second locking member positioned outside of the second housing and complementary with the first locking member.
    Type: Application
    Filed: October 30, 2014
    Publication date: April 30, 2015
    Applicant: TYCO ELECTRONICS (SHANGHAI) CO. LTD.,
    Inventors: Hao Wang, Qijun Zhao, Yuquan Chen