Patents by Inventor Sun Chen

Sun 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).

  • Patent number: 11986575
    Abstract: A preparation method of drug-loaded micelles of an absorbable vascular stent coating for angiostenosis in an infant is provided, including the following steps: S1: dissolving a drug to be encapsulated in an appropriate amount of an emulsifying agent, adding a chitosan-poly(p-dioxohone) amphiphilic block copolymer (chitosan-b-PPDO copolymer), and thoroughly mixing to obtain a drug-copolymer solution; S2: adding the drug-copolymer solution obtained in S1 dropwise to an emulsifying agent aqueous solution prepared in advance, and continuously stirring to obtain a stable drug-loaded micellar solution; and S3: removing the emulsifying agent from the micellar solution obtained in S2 through vacuum evaporation, stirring a resulting concentrate, and centrifuging the concentrate to obtain a supernatant; and filtering the supernatant to obtain a filtrate, and subjecting the filtrate to dialysis to obtain the drug-loaded micelles.
    Type: Grant
    Filed: March 29, 2022
    Date of Patent: May 21, 2024
    Assignee: XINHUA HOSPITAL AFFILIATED TO SHANGHAI JIAOTONG UNIVERSITY SCHOOL OF MEDICINE
    Inventors: Kun Sun, Jing Sun, Sun Chen, Kai Bai, Yanan Lu, Lu Wang, Fujun Wang, Fan Zhao, Jihong Huang
  • Publication number: 20240042109
    Abstract: A preparation method of drug-loaded micelles of an absorbable vascular stent coating for angiostenosis in an infant is provided, including the following steps: Si: dissolving a drug to be encapsulated in an appropriate amount of an emulsifying agent, adding a chitosan-poly(p-dioxohone) amphiphilic block copolymer (chitosan-b-PPDO copolymer), and thoroughly mixing to obtain a drug-copolymer solution; S2: adding the drug-copolymer solution obtained in S1 dropwise to an emulsifying agent aqueous solution prepared in advance, and continuously stirring to obtain a stable drug-loaded micellar solution; and S3: removing the emulsifying agent from the micellar solution obtained in S2 through vacuum evaporation, stirring a resulting concentrate, and centrifuging the concentrate to obtain a supernatant; and filtering the supernatant to obtain a filtrate, and subjecting the filtrate to dialysis to obtain the drug-loaded micelles.
    Type: Application
    Filed: March 29, 2022
    Publication date: February 8, 2024
    Applicant: XINHUA HOSPITAL AFFILIATED TO SHANGHAI JIAOTONG UNIVERSITY SCHOOL OF MEDICINE
    Inventors: Kun SUN, Jing SUN, Sun CHEN, Kai BAI, Yanan LU, Lu WANG, Fujun WANG, Fan ZHAO, Jihong HUANG
  • Publication number: 20150319622
    Abstract: A system that identifies a number of secondary systems located in a first geographical area; identifies a primary resource available to be assigned to the secondary systems, the primary resource being a resource to which a primary system has a priority usage right; determines whether the number of secondary systems located in the first geographical area exceeds a predetermined threshold value; and limits a number of secondary systems to which the primary resource is assigned when it is determined that the number of secondary systems located in the first geographical area exceeds the predetermined threshold value.
    Type: Application
    Filed: December 26, 2013
    Publication date: November 5, 2015
    Applicant: Sony Corporation
    Inventor: SUN Chen
  • Patent number: 8932929
    Abstract: The invention relates to a thin film transistor memory and its fabricating method. This memory using the substrate as the gate electrode from bottom to up includes a charge blocking layer, a charge storage layer, a charge tunneling layer, an active region of the device and source/drain electrodes. The charge blocking layer is the ALD grown Al2O3 film. The charge storage layer is the two layer metal nanocrystals which include the first layer metal nanocrystals, the insulating layer and the second layer metal nanocrystals grown by ALD method in sequence from bottom to up. The charge tunneling layer is the symmetrical stack layer which includes the SiO2/HfO2/SiO2 or Al2O3/HfO2/Al2O3 film grown by ALD method in sequence from bottom to up. The active region of the device is the IGZO film grown by the RF sputtering method, and it is formed by the standard lithography and wet etch method.
    Type: Grant
    Filed: April 24, 2012
    Date of Patent: January 13, 2015
    Assignee: Fudan University
    Inventors: Shijin Ding, Sun Chen, Xingmei Cui, Pengfei Wang, Wei Zhang
  • Publication number: 20130264632
    Abstract: The invention relates to a thin film transistor memory and its fabricating method, This memory using the substrate as the gate electrode from bottom to up includes a charge blocking layer, a charge storage layer, a charge tunneling layer, an active region of the device and source/drain electrodes. The charge blocking layer is the ALD grown Al2O3 film. The charge storage layer is the two layer metal nanocrystals which include the first layer metal nanocrystals, the insulting layer and the second layer metal nanocrystals grown by ALD method. in sequence from bottom to up. The charge tunneling layer is the symmetrical stack layer which includes the SiO2/HfO2/SiO2 or Al2O3/HfO2/Al2O3 film grown. by ALD method in sequence from bottom to up. The active region of the device is the IGZO film grown by the RF sputtering method, and it is formed by the standard lithography and wet etch method.
    Type: Application
    Filed: April 24, 2012
    Publication date: October 10, 2013
    Applicant: Fudan University
    Inventors: Shijin Ding, Sun Chen, Xingmei Cui, Pengfei Wang, Wei Zhang
  • Publication number: 20070272339
    Abstract: This invention is based upon the discovery that elongated silica has superior characteristics for reinforcing rubbery elastomers as compared to conventional silica. More specifically, elongated silica provides a higher level of reinforcement for elastomers at the same level of loading. Accordingly, elongated silica can be employed to attain an equivalent level of reinforcement at a lower level of loading. This results in lower weight compositions and potential cost savings. Rubber compounds that are reinforced with elongated silica offer significant advantages in tires including reduced rolling resistance, increased tread life, and, of course, reduced weight.
    Type: Application
    Filed: August 10, 2007
    Publication date: November 29, 2007
    Applicant: The Goodyear Tire & Rubber Company
    Inventors: Howard Colvin, Sun Chen
  • Patent number: 6638192
    Abstract: An automatic cooling mechanism is provided for an electrical device having a high-temperature element and a rolling shaft. The mechanism includes a fan mounted within the electrical device and a transmission mechanism connected between the fan and the rolling shaft for transmitting rotational kinetic energy from the rolling shaft to the fan to rotate the fan for reducing the temperature of the high-temperature element.
    Type: Grant
    Filed: October 6, 1999
    Date of Patent: October 28, 2003
    Assignee: Mustek Systems, Inc.
    Inventor: Sun Chen
  • Publication number: 20030195071
    Abstract: The present invention provides an automatic cooling mechanism for an electrical device having a high-temperature element and a rolling shaft. The mechanism includes a fan mounted within the electrical device and a transmission mechanism connected between the fan and the rolling shaft for transmitting rotational kinetic energy from the rolling shaft to the fan to rotate the fan for reducing the temperature of the high-temperature element.
    Type: Application
    Filed: May 8, 2003
    Publication date: October 16, 2003
    Inventor: Sun Chen
  • Patent number: 6578845
    Abstract: An automatic document feeding apparatus for feeding a document to a flatbed scanner to conduct the scanning processes. The automatic document feeding apparatus includes an upper body, a lower body, a feeding path and at least a linkage set. The linkage set is able to uphold the upper body separated completely from the lower body. In this case, the spaces left between the upper body and the lower body is relatively wide for users to clear the jammed document. Further, the linkage set comprises plastic pad for providing stopping resistance to maintain said upper body at a certain distance above the lower body.
    Type: Grant
    Filed: April 9, 2001
    Date of Patent: June 17, 2003
    Assignee: Mustek Systems Inc.
    Inventor: Sun Chen
  • Publication number: 20020145250
    Abstract: An automatic document feeding apparatus for feeding a document to a flatbed scanner to conduct the scanning processes. The automatic document feeding apparatus includes an upper body, a lower body, a feeding path and at least a linkage set. The linkage set is able to uphold the upper body separated completely from the lower body. In this case, the spaces left between the upper body and the lower body is relatively wide for users to clear the jammed document. Further, the linkage set comprises plastic pad for providing stopping resistance to maintain said upper body at a certain distance above the lower body.
    Type: Application
    Filed: April 9, 2001
    Publication date: October 10, 2002
    Applicant: MUSTEK SYSTEMS INC.
    Inventor: Sun Chen
  • Publication number: 20020049105
    Abstract: The present invention provides an automatic cooling mechanism for an electrical device having a high-temperature element and a rolling shaft. The mechanism includes a fan mounted within the electrical device and a transmission mechanism connected between the fan and the rolling shaft for transmitting rotational kinetic energy from the rolling shaft to the fan to rotate the fan for reducing the temperature of the high-temperature element.
    Type: Application
    Filed: October 6, 1999
    Publication date: April 25, 2002
    Applicant: McGuire Woods LLP
    Inventor: SUN CHEN
  • Patent number: 6320745
    Abstract: An automatic cooling mechanism for an electrical device having a high-temperature element and a rolling shaft is provided. The mechanism includes a fan mounted within the electrical device; and a rotation transmission and variation mechanism connected between the fan and the rolling shaft for variationally transmitting rotational kinetic energy from the rolling shaft to the fan.
    Type: Grant
    Filed: October 6, 1999
    Date of Patent: November 20, 2001
    Assignee: Mustek Systems, Inc.
    Inventor: Sun Chen
  • Patent number: 6163659
    Abstract: The present invention provides an automatic document-feeding device. The device includes a scanning area facing the scanner; a document-feeding path for transmitting therein a document to the scanning area to be scanned by the scanner; a document urging device for urging the document to be moved within the document-feeding path; and a scanning status indicating device connecting to the document-feeding path for changing a brightness situation when the document is passing to be observed by a user.
    Type: Grant
    Filed: October 6, 1999
    Date of Patent: December 19, 2000
    Assignee: Mustek Systems, Inc.
    Inventor: Sun Chen