Patents by Inventor Yanfei Xu

Yanfei Xu 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: 20240072534
    Abstract: A start method for a photovoltaic rapid shutdown system, an application apparatus and a system. In the method, an inverter system controls the voltage change of a corresponding direct current bus in a photovoltaic rapid shutdown system; and a photovoltaic module shutdown device performs determination according to a measured output voltage of itself, and controls itself to be turned on when the change characteristic of the voltage of the direct current bus connected to itself satisfies a preset turn-on condition. Therefore, merely by means of a self-contained voltage sampling device, the photovoltaic module shutdown device can determine whether a turn-on signal is received, without additionally providing a corresponding receiving device, thereby reducing hardware cost of the photovoltaic module shutdown device while realizing communication between the photovoltaic module shutdown device and the outside.
    Type: Application
    Filed: January 10, 2022
    Publication date: February 29, 2024
    Applicant: Sungrow Power Supply Co., Ltd.
    Inventors: Yu Yang, Yanfei Yu, Jun Xu, Qiaodi Chen
  • Publication number: 20220256819
    Abstract: Four zebrafish gene promoters, which are skin specific, muscle specific, skeletal muscle specific and ubiquitously expressed respectively, were isolated and ligated to the 5? end of the EGFP gene. When the resulting chimeric gene constructs were introduced into zebrafish, the transgenic zebrafish emit green fluorescence under a blue light or ultraviolet light according to the specificity of the promoters used. Thus, new varieties of ornamental fish of different fluorescence patterns, e.g., skin fluorescence, muscle fluorescence, skeletal muscle-specific and/or ubiquitous fluorescence, are developed.
    Type: Application
    Filed: February 25, 2022
    Publication date: August 18, 2022
    Applicant: National University of Singapore
    Inventors: Zhiyuan GONG, Jiangyan HE, Bensheng JU, Toong Jin LAM, Yanfei XU, Tie YAN
  • Patent number: 11259509
    Abstract: Four zebrafish gene promoters, which are skin specific, muscle specific, skeletal muscle specific and ubiquitously expressed respectively, were isolated and ligated to the 5? end of the EGFP gene. When the resulting chimeric gene constructs were introduced into zebrafish, the transgenic zebrafish emit green fluorescence under a blue light or ultraviolet light according to the specificity of the promoters used. Thus, new varieties of ornamental fish of different fluorescence patterns, e.g., skin fluorescence, muscle fluorescence, skeletal muscle-specific and/or ubiquitous fluorescence, are developed.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: March 1, 2022
    Assignee: National University of Singapore
    Inventors: Zhiyuan Gong, Jiangyan He, Bensheng Ju, Toong Jin Lam, Yanfei Xu, Tie Yan
  • Patent number: 10427345
    Abstract: Process for continuous fabrication of highly aligned polymer films. A polymer-solvent solution is subjected to a high shear, high temperature, Couette flow to extrude a thin film having polymer chain disentanglement. The extruded thin film is frozen and the solvent is allowed to evaporate to form a dried film. The dried film is mechanically drawn using a constant force, adaptive-thickness drawing system to align polymer molecular chains through plastic deformation. A suitable polymer is ultra-high molecular weight polyethylene.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: October 1, 2019
    Assignee: Massachusetts Institute of Technology
    Inventors: Gang Chen, Jianjian Wang, Jonathan Kien-Kwok Tong, Hadi Ghasemi, Xiaopeng Huang, James Loomis, Yanfei Xu
  • Publication number: 20190241785
    Abstract: Disclosed are thermally conductive quinoid-type conjugated polymer thin films. One such film comprises conjugated poly(3-hexylthiophene) (P3HT). The thin films can be fabricated using oxidative chemical vapor deposition (oCVD), which offers unique advantages for integrating polymer films into various devices. By avoiding the use of solvents in the deposition of monomers and oxidants and undesirable solvent-derived surface-tension driven effects, such as dewetting, the oCVD coatings can conformally coat complex geometries, can be scaled to large areas, and can be fabricated at relatively low substrate temperatures on electrically insulating substrates. Disclosed is the formation of ordered polymer structures with rigid backbones achieved by oCVD with stacking in the transverse direction via ?-? interactions. P3HT films with record-high thermal conductivity of 2.2 W/m-K near room temperature have been prepared.
    Type: Application
    Filed: January 17, 2019
    Publication date: August 8, 2019
    Inventors: Gang Chen, Karen K. Gleason, Yanfei Xu, Xiaoxue Wang
  • Patent number: 9951446
    Abstract: Infrared-transparent visible-opaque fabrics for wearable personal thermal management.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: April 24, 2018
    Assignee: Massachusetts Institute of Technology
    Inventors: Gang Chen, Jonathan K. Tong, Svetlana Boriskina, Xiaopeng Huang, James Loomis, Yanfei Xu
  • Publication number: 20180064074
    Abstract: Four zebrafish gene promoters, which are skin specific, muscle specific, skeletal muscle specific and ubiquitously expressed respectively, were isolated and ligated to the 5? end of the EGFP gene. When the resulting chimeric gene constructs were introduced into zebrafish, the transgenic zebrafish emit green fluorescence under a blue light or ultraviolet light according to the specificity of the promoters used. Thus, new varieties of ornamental fish of different fluorescence patterns, e.g., skin fluorescence, muscle fluorescence, skeletal muscle-specific and/or ubiquitous fluorescence, are developed.
    Type: Application
    Filed: August 11, 2017
    Publication date: March 8, 2018
    Applicant: National University of Singapore
    Inventors: Zhiyuan GONG, Jiangyan HE, Bensheng JU, Toong Jin LAM, Yanfei XU, Tie YAN
  • Publication number: 20180030626
    Abstract: The present invention is directed to infrared-transparent visible-opaque fabrics for wearable personal thermal management.
    Type: Application
    Filed: March 16, 2017
    Publication date: February 1, 2018
    Inventors: Gang Chen, Jonathan K. Tong, Svetlana Boriskina, Xiaopeng Huang, James Loomis, Yanfei Xu
  • Patent number: 9763430
    Abstract: Four zebrafish gene promoters, which are skin specific, muscle specific, skeletal muscle specific and ubiquitously expressed respectively, were isolated and ligated to the 5? end of the EGFP gene. When the resulting chimeric gene constructs were introduced into zebrafish, the transgenic zebrafish emit green fluorescence under a blue light or ultraviolet light according to the specificity of the promoters used. Thus, new varieties of ornamental fish of different fluorescence patterns, e.g., skin fluorescence, muscle fluorescence, skeletal muscle-specific and/or ubiquitous fluorescence, are developed.
    Type: Grant
    Filed: January 10, 2013
    Date of Patent: September 19, 2017
    Assignee: National University of Singapore
    Inventors: Zhiyuan Gong, Jiangyan He, Bensheng Ju, Toong Jin Lam, Yanfei Xu, Tie Yan
  • Publication number: 20150321408
    Abstract: Process for continuous fabrication of highly aligned polymer films. A polymer-solvent solution is subjected to a high shear, high temperature, Couette flow to extrude a thin film having polymer chain disentanglement. The extruded thin film is frozen and the solvent is allowed to evaporate to form a dried film. The dried film is mechanically drawn using a constant force, adaptive-thickness drawing system to align polymer molecular chains through plastic deformation. A suitable polymer is ultra-high molecular weight polyethylene.
    Type: Application
    Filed: April 30, 2015
    Publication date: November 12, 2015
    Inventors: Gang Chen, Jianjian Wang, Jonathan Kien-Kwok Tong, Hadi Ghasemi, Xiaopeng Huang, James Loomis, Yanfei Xu
  • Publication number: 20150046724
    Abstract: The present disclosure discloses a power supply method and an electronic device, the method is applied to the electronic device, the electronic device comprises M interfaces, and M is an integer which is larger than or equal to 2. The method comprises: obtaining power supply orders corresponding to the M interfaces, when the electronic device being switched from a non-operating state to an operating state; and supplying power to N devices connected to the M interfaces in the power supply orders, wherein N is an integer which is larger than or equal to 1 and less than or equal to M.
    Type: Application
    Filed: March 28, 2014
    Publication date: February 12, 2015
    Applicant: Lenovo (Beijing) Limited
    Inventor: Yanfei Xu
  • Publication number: 20140007265
    Abstract: Four zebrafish gene promoters, which are skin specific, muscle specific, skeletal muscle specific and ubiquitously expressed respectively, were isolated and ligated to the 5? end of the EGFP gene. When the resulting chimeric gene constructs were introduced into zebrafish, the transgenic zebrafish emit green fluorescence under a blue light or ultraviolet light according to the specificity of the promoters used. Thus, new varieties of ornamental fish of different fluorescence patterns, e.g., skin fluorescence, muscle fluorescence, skeletal muscle-specific and/or ubiquitous fluorescence, are developed.
    Type: Application
    Filed: January 10, 2013
    Publication date: January 2, 2014
    Applicant: NATIONAL UNIVERSITY OF SINGAPORE
    Inventors: Zhiyuan GONG, Jiangyan HE, Bensheng JU, Toong Jin LAM, Yanfei XU, Tie YAN
  • Patent number: 8378169
    Abstract: Four zebrafish gene promoters, which are skin specific, muscle specific, skeletal muscle specific and ubiquitously expressed respectively, were isolated and ligated to the 5? end of the EGFP gene. When the resulting chimeric gene constructs were introduced into zebrafish, the transgenic zebrafish emit green fluorescence under a blue light or ultraviolet light according to the specificity of the promoters used. Thus, new varieties of ornamental fish of different fluorescence patterns, e.g., skin fluorescence, muscle fluorescence, skeletal muscle-specific and/or ubiquitous fluorescence, are developed.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: February 19, 2013
    Assignee: National University of Singapore
    Inventors: Zhiyuan Gong, Jiangyan He, Bensheng Ju, Toong Jin Lam, Yanfei Xu, Tie Yan
  • Publication number: 20120167241
    Abstract: Four zebrafish gene promoters, which are skin specific, muscle specific, skeletal muscle specific and ubiquitously expressed respectively, were isolated and ligated to the 5? end of the EGFP gene. When the resulting chimeric gene constructs were introduced into zebrafish, the transgenic zebrafish emit green fluorescence under a blue light or ultraviolet light according to the specificity of the promoters used. Thus, new varieties of ornamental fish of different fluorescence patterns, e.g., skin fluorescence, muscle fluorescence, skeletal muscle-specific and/or ubiquitous fluorescence, are developed.
    Type: Application
    Filed: December 22, 2011
    Publication date: June 28, 2012
    Applicant: NATIONAL UNIVERSITY OF SINGAPORE
    Inventors: Zhiyuan GONG, Jiangyan HE, Bensheng JU, Toon Jin LAM, Yanfei XU, Tie YAN
  • Patent number: 8153858
    Abstract: Four zebrafish gene promoters, which are skin specific, muscle specific, skeletal muscle specific and ubiquitously expressed respectively, were isolated and ligated to the 5? end of the EGFP gene. When the resulting chimeric gene constructs were introduced into zebrafish, the transgenic zebrafish emit green fluorescence under a blue light or ultraviolet light according to the specificity of the promoters used. Thus, new varieties of ornamental fish of different fluorescence patterns, e.g., skin fluorescence, muscle fluorescence, skeletal muscle-specific and/or ubiquitous fluorescence, are developed.
    Type: Grant
    Filed: May 15, 2007
    Date of Patent: April 10, 2012
    Assignee: National University of Singapore
    Inventors: Zhiyuan Gong, Jiangyan He, Bensheng Ju, Toong Jin Lam, Yanfei Xu, Tie Yan
  • Patent number: 7834239
    Abstract: Four zebrafish gene promoters, which are skin specific, muscle specific, skeletal muscle specific and ubiquitously expressed respectively, were isolated and ligated to the 5? end of the EGFP gene. When the resulting chimeric gene constructs were introduced into zebrafish, the transgenic zebrafish emit green fluorescence under a blue light or ultraviolet light according to the specificity of the promoters used. Thus, new varieties of ornamental fish of different fluorescence patterns, e.g., skin fluorescence, muscle fluorescence, skeletal muscle-specific and/or ubiquitous fluorescence, are developed.
    Type: Grant
    Filed: October 21, 2003
    Date of Patent: November 16, 2010
    Assignee: The National University of Singapore
    Inventors: Zhiyuan Gong, Jiangyan He, Bensheng Ju, Toong Jin Lam, Yanfei Xu, Tie Yan
  • Publication number: 20090063466
    Abstract: Described is a technology by which a resource selector traverses a hierarchical storage structure to enumerate its resources and provide a flat list of corresponding items. The user interacts with the flat list to select an item. The resource selector is particularly beneficial when incorporated into a handheld computing device. The resource selector may use a filtering criterion associated with an application program, e.g., the hierarchical storage may correspond to a file system, with the file extension (type) being the filtering criterion. A trigger coupled to the resource selector triggers the resource selector, in which the trigger may be incorporated into the application program, or may comprise an application-independent (e.g., operating system) component that knows which application program currently has focus and triggers the resource selector for that application.
    Type: Application
    Filed: August 31, 2007
    Publication date: March 5, 2009
    Applicant: Microsoft Corporation
    Inventors: Yanfei Xu, Xiao Xe, Arun K. Nanda, Kim Cameron
  • Publication number: 20080052787
    Abstract: Four zebrafish gene promoters, which are skin specific, muscle specific, skeletal muscle specific and ubiquitously expressed respectively, were isolated and ligated to the 5? end of the EGFP gene. When the resulting chimeric gene constructs were introduced into zebrafish, the transgenic zebrafish emit green fluorescence under a blue light or ultraviolet light according to the specificity of the promoters used. Thus, new varieties of ornamental fish of different fluorescence patterns, e.g., skin fluorescence, muscle fluorescence, skeletal muscle-specific and/or ubiquitous fluorescence, are developed.
    Type: Application
    Filed: May 15, 2007
    Publication date: February 28, 2008
    Inventors: Zhiyuan Gong, Jiangyan He, Bensheng Ju, Toong Lam, Yanfei Xu, Tie Yan
  • Patent number: 7135613
    Abstract: Four zebrafish gene promoters, which are skin specific, muscle specific, skeletal muscle specific and ubiquitously expressed, respectively, were isolated and ligated to the 5? end of the EGFP gene. When the resulting chimeric gene constructs were introduced into zebrafish, the transgenic zebrafish emit green fluorescence under a blue light or ultra-violet light according to the specificity of the promoters used. Thus, new varieties of ornamental fish of different fluorescence patters, e.g., skin fluorescence, muscle fluorescence, skeletal muscle-specific and/or ubiquitous fluorescence, are developed.
    Type: Grant
    Filed: July 16, 1999
    Date of Patent: November 14, 2006
    Assignee: The National University of Singapore
    Inventors: Zhiyuan Gong, Jiangyan He, Bensheng Ju, Toong Jin Lam, Yanfei Xu, Tie Yan
  • Publication number: 20040143864
    Abstract: Four zebrafish gene promoters, which are skin specific, muscle specific, skeletal muscle specific and ubiquitously expressed respectively, were isolated and ligated to the 5′ end of the EGFP gene. When the resulting chimeric gene constructs were introduced into zebrafish, the transgenic zebrafish emit green fluorescence under a blue light or ultraviolet light according to the specificity of the promoters used. Thus, new varieties of ornamental fish of different fluorescence patterns, e.g., skin fluorescence, muscle fluorescence, skeletal muscle-specific and/or ubiquitous fluorescence, are developed.
    Type: Application
    Filed: October 21, 2003
    Publication date: July 22, 2004
    Applicant: NATIONAL UNIVERSITY OF SINGAPORE
    Inventors: Zhiyuan Gong, Jiangyan He, Bensheng Ju, Toong Jin Lam, Yanfei Xu, Tie Yan