Patents by Inventor Changfeng Wu

Changfeng Wu 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: 20220340014
    Abstract: An integrated electromagnet comprises a magnetic yoke and magnetic poles in two rows. An axis of magnetic core in the magnetic pole is perpendicular to the magnetic yoke. The magnetic poles comprise first and second magnetic poles that are arranged alternatively in a row. The first magnetic pole in any row is adjacent to the second magnetic pole in the other row. The first magnetic poles in a row are connected to a one-way output controller and the second magnetic poles in a row are connected to a bidirectional output controller. In a guiding state, the magnetic poles in a row have a same polarity, and a polarity of the magnetic poles in one row is opposite to that in the other row; current output by the bidirectional output controller in a braking state has direction opposite to current output by the bidirectional output controller in the guiding state.
    Type: Application
    Filed: January 26, 2021
    Publication date: October 27, 2022
    Applicant: CRRC QINGDAO SIFANG CO., LTD.
    Inventors: Fujie JIANG, Weitao HAN, Guimei DENG, Donghua WU, Changfeng YANG
  • Publication number: 20220292798
    Abstract: A device for identifying a pattern over a first surface includes a photosensitive layer, and a light-guiding layer disposed between the photosensitive layer and the first surface. The photosensitive layer includes a plurality of photosensitive elements, each configured to convert incident light into an electrical signal. The light-guiding layer includes a plurality of light-guiding units, each positionally corresponding to one of the plurality of photosensitive elements. Each light-guiding unit include a plurality of light-transmitting portions, each configured to guide a light beam reflected from a feature of the pattern positionally corresponding thereto to transmit therethrough and reach one of the plurality of photosensitive elements corresponding to the each of the plurality of light-guiding units. The device can be used for identification of fingerprint, as well as other biometric or non-biometric features, and has a reduced thickness and an improved accuracy for pattern identification.
    Type: Application
    Filed: May 27, 2022
    Publication date: September 15, 2022
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Pinchao GU, Haisheng WANG, Chunwei WU, Yingming LIU, Rui XU, Changfeng LI, Lijun ZHAO, Yanan JIA, Yuzhen GUO, Yunke QIN
  • Publication number: 20220252607
    Abstract: The present invention provides, among other aspects, functionalized chromophoric polymer dots comprising a hydrophobic core and a hydrophilic cap, and bioconjugates thereof. Also provided are improved methods for preparing functionalized chromophoric polymer dots. Methods for in vivo imaging and molecular labeling are also disclosed.
    Type: Application
    Filed: February 15, 2022
    Publication date: August 11, 2022
    Inventors: Daniel T. Chiu, Changfeng Wu, Jason McNeill, Jiangbo Yu
  • Patent number: 11408884
    Abstract: Lyophilized chromophoric polymer dot compositions are provided. Also disclosed are methods of making and using the lyophilized compositions, methods of dispersing the lyophilized compositions in aqueous solutions and kits supplying the compositions.
    Type: Grant
    Filed: December 3, 2019
    Date of Patent: August 9, 2022
    Assignee: University of Washington through its Center for Commercialization
    Inventors: Daniel T. Chiu, Wei Sun, Jiangbo Yu, Changfeng Wu, Fangmao Ye
  • Publication number: 20220212881
    Abstract: A material conveying device includes a base frame, a first conveying unit, a second conveying unit and a transfer assembly. The first conveying unit is provided on the base frame, the second conveying unit is provided on the base frame, and the transfer assembly is provided on the base frame and can transfer a material between the first conveying unit and the second conveying unit. The present disclosure further provides a processing equipment facilitating material distribution and a material distribution method.
    Type: Application
    Filed: March 25, 2022
    Publication date: July 7, 2022
    Inventors: Dongsheng QU, Changfeng LI, Junsheng XIA, Jian YANG, Hongjun WU, Feng YIN, Jin ZHA, Kaicang RUAN, Jiming HUANG, Fuliang GAO, Dianqiu ZHOU
  • Patent number: 11373386
    Abstract: A device for identifying a pattern over a first surface includes a photosensitive layer, and a light-guiding layer disposed between the photosensitive layer and the first surface. The photosensitive layer includes a plurality of photosensitive elements, each configured to convert incident light into an electrical signal. The light-guiding layer includes a plurality of light-guiding units, each positionally corresponding to one of the plurality of photosensitive elements. Each light-guiding unit includes a plurality of light-transmitting portions, each configured to guide a light beam reflected from a feature of the pattern positionally corresponding thereto to transmit therethrough and reach one of the plurality of photosensitive elements corresponding to the each of the plurality of light-guiding units. The device can be used for identification of fingerprint, as well as other biometric or non-biometric features, and has a reduced thickness and an improved accuracy for pattern identification.
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: June 28, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Pinchao Gu, Haisheng Wang, Chunwei Wu, Yingming Liu, Rui Xu, Changfeng Li, Lijun Zhao, Yanan Jia, Yuzhen Guo, Yunke Qin
  • Publication number: 20220082566
    Abstract: The present disclosure provides encoded chromophoric polymer particles that are capable of, for example, optical and/or biomolecular encoding of analytes. The present disclosure also provides suspensions comprising a plurality of encoded chromophoric polymer particles. The present disclosure also provides methods of using the encoded chromophoric polymer particles and systems for performing multiplex analysis with encoded chromophoric polymer particles.
    Type: Application
    Filed: November 30, 2021
    Publication date: March 17, 2022
    Applicant: UNIVERSITY OF WASHINGTON THROUGH ITS CENTER FOR COMMERCIALIZATION
    Inventors: Daniel T. Chiu, Changfeng Wu, Jiangbo Yu
  • Patent number: 11249073
    Abstract: The present disclosure provides metal-containing (MC) semiconducting (SC) Pdots (MC-SC-Pdots) with beneficial functionalities in both cellular imaging and manipulation, among other applications. The Pdots comprise at least one nanoparticle comprising at least one metal, and a semiconducting polymer associated with the nanoparticle.
    Type: Grant
    Filed: October 8, 2013
    Date of Patent: February 15, 2022
    Assignee: UNIVERSITY OF WASHINGTON
    Inventors: Daniel T. Chiu, Wei Sun, Jiangbo Yu, Changfeng Wu
  • Patent number: 11249086
    Abstract: The present invention provides, among other aspects, functionalized chromophoric polymer dots comprising a hydrophobic core and a hydrophilic cap, and bioconjugates thereof. Also provided are improved methods for preparing functionalized chromophoric polymer dots. Methods for in vivo imaging and molecular labeling are also disclosed.
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: February 15, 2022
    Assignee: UNIVERSITY OF WASHINGTON
    Inventors: Daniel T. Chiu, Changfeng Wu, Jason McNeill, Jiangbo Yu
  • Patent number: 11221336
    Abstract: The present disclosure provides encoded chromophoric polymer particles that are capable of, for example, optical and/or biomolecular encoding of analytes. The present disclosure also provides suspensions comprising a plurality of encoded chromophoric polymer particles. The present disclosure also provides methods of using the encoded chromophoric polymer particles and systems for performing multiplex analysis with encoded chromophoric polymer particles.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: January 11, 2022
    Assignee: UNIVERSITY OF WASHINGTON THROUGH ITS CENTER FOR COMMERCIALIZATION
    Inventors: Daniel T. Chiu, Changfeng Wu, Jiangbo Yu
  • Publication number: 20210343445
    Abstract: The present disclosure provides organic-inorganic hybrid polymer particles, which have desirable surface chemistry and optical properties that make them particularly suitable for biological and optical applications. The present disclosure also provides methods of making organic-inorganic hybrid polymer particles. The present disclosure also provides methods of using the organic-inorganic hybrid polymer particles for biological and optical applications.
    Type: Application
    Filed: July 6, 2021
    Publication date: November 4, 2021
    Applicant: University of Washington
    Inventors: Daniel T. CHIU, Jiangbo YU, Yu RONG, Changfeng WU
  • Patent number: 11087900
    Abstract: The present disclosure provides organic-inorganic hybrid polymer particles, which have desirable surface chemistry and optical properties that make them particularly suitable for biological and optical applications. The present disclosure also provides methods of making organic-inorganic hybrid polymer particles. The present disclosure also provides methods of using the organic-inorganic hybrid polymer particles for biological and optical applications.
    Type: Grant
    Filed: June 12, 2020
    Date of Patent: August 10, 2021
    Assignee: University of Washington
    Inventors: Daniel T. Chiu, Jiangbo Yu, Yu Rong, Changfeng Wu
  • Publication number: 20200371109
    Abstract: The present invention provides, among other aspects, stabilized chromophoric nanoparticles. In certain embodiments, the chromophoric nanoparticles provided herein are rationally functionalized with a pre-determined number of functional groups. In certain embodiments, the stable chromophoric nanoparticles provided herein are modified with a low density of functional groups. In yet other embodiments, the chromophoric nanoparticles provided herein are conjugated to one or more molecules. Also provided herein are methods for making rationally functionalized chromophoric nanoparticles.
    Type: Application
    Filed: August 10, 2020
    Publication date: November 26, 2020
    Applicant: University of Washington through its Center for Commercialization
    Inventors: Daniel T. Chiu, Changfeng Wu, Xuanjun Zhang, Jiangbo Yu, Fangmao Ye
  • Publication number: 20200312481
    Abstract: The present disclosure provides organic-inorganic hybrid polymer particles, which have desirable surface chemistry and optical properties that make them particularly suitable for biological and optical applications. The present disclosure also provides methods of making organic-inorganic hybrid polymer particles. The present disclosure also provides methods of using the organic-inorganic hybrid polymer particles for biological and optical applications.
    Type: Application
    Filed: June 12, 2020
    Publication date: October 1, 2020
    Inventors: Daniel T. CHIU, Jiangbo YU, Yu RONG, Changfeng WU
  • Patent number: 10770197
    Abstract: The present disclosure provides organic-inorganic hybrid polymer particles, which have desirable surface chemistry and optical properties that make them particularly suitable for biological and optical applications. The present disclosure also provides methods of making organic-inorganic hybrid polymer particles. The present disclosure also provides methods of using the organic-inorganic hybrid polymer particles for biological and optical applications.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: September 8, 2020
    Assignee: University of Washington
    Inventors: Daniel T. Chiu, Jiangbo Yu, Yu Rong, Changfeng Wu
  • Patent number: 10768180
    Abstract: Polymer nanoparticles and related methods are provided. The polymer particles can include polymer dots having a coating including a polyelectrolyte polymer. Methods of making and using the polymer nanoparticles are also provided.
    Type: Grant
    Filed: July 20, 2018
    Date of Patent: September 8, 2020
    Assignee: UNIVERSITY OF WASHINGTON THROUGH ITS CENTER FOR COMMERCIALIZATION
    Inventors: Daniel T. Chiu, Yuhui Jin, Fangmao Ye, Changfeng Wu, Yang-Hsiang Chan
  • Patent number: 10739349
    Abstract: The present invention provides, among other aspects, stabilized chromophoric nanoparticles. In certain embodiments, the chromophoric nanoparticles provided herein are rationally functionalized with a pre-determined number of functional groups. In certain embodiments, the stable chromophoric nanoparticles provided herein are modified with a low density of functional groups. In yet other embodiments, the chromophoric nanoparticles provided herein are conjugated to one or more molecules. Also provided herein are methods for making rationally functionalized chromophoric nanoparticles.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: August 11, 2020
    Assignee: University of Washington through its Center for Commercialization
    Inventors: Daniel T. Chiu, Changfeng Wu, Xuanjun Zhang, Jiangbo Yu, Fangmao Ye
  • Publication number: 20200158724
    Abstract: Lyophilized chromophoric polymer dot compositions are provided. Also disclosed are methods of making and using the lyophilized compositions, methods of dispersing the lyophilized compositions in aqueous solutions and kits supplying the compositions.
    Type: Application
    Filed: December 3, 2019
    Publication date: May 21, 2020
    Inventors: Daniel T. CHIU, Wei SUN, Jiangbo YU, Changfeng WU, Fangmao YE
  • Publication number: 20200011874
    Abstract: The present disclosure provides encoded chromophoric polymer particles that are capable of, for example, optical and/or biomolecular encoding of analytes. The present disclosure also provides suspensions comprising a plurality of encoded chromophoric polymer particles. The present disclosure also provides methods of using the encoded chromophoric polymer particles and systems for performing multiplex analysis with encoded chromophoric polymer particles.
    Type: Application
    Filed: August 29, 2019
    Publication date: January 9, 2020
    Inventors: Daniel T. Chiu, Changfeng Wu, Jiangbo Yu
  • Publication number: 20200005960
    Abstract: The present disclosure provides organic-inorganic hybrid polymer particles, which have desirable surface chemistry and optical properties that make them particularly suitable for biological and optical applications. The present disclosure also provides methods of making organic-inorganic hybrid polymer particles. The present disclosure also provides methods of using the organic-inorganic hybrid polymer particles for biological and optical applications.
    Type: Application
    Filed: June 13, 2017
    Publication date: January 2, 2020
    Inventors: Daniel T. CHIU, Jiangbo YU, Yu RONG, Changfeng WU