Patents by Inventor Zhijun Sun

Zhijun Sun 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: 20130324569
    Abstract: A PEGylated cyclopamine analog, preparation method, uses thereof and methods for treating proliferative diseases using the same are disclosed. The PEGylated cyclopamine analog is a compound represented by the following formula I, a compound comprising at least one group represented by the following formula I (in formula I, R is straight or branched polyethylene glycol having a molecular weight between 200 and 200,000 Dalton, L and X are linking groups), or their single enantiomers, mixture of enantiomers, mixture of diastereomers, pharmaceutically acceptable salts, solvates, or hydrates.
    Type: Application
    Filed: February 25, 2011
    Publication date: December 5, 2013
    Applicant: Beijing Kemedicine Co., Ltd.
    Inventors: Chun Song, Chengzhi Zhang, Xin Zhao, Zhao Hu, Xiuling Xu, Youzhong Zhang, Mingyi Wang, Zhijun Sun
  • Publication number: 20090073434
    Abstract: A nanostructured optical device includes a metal film or a plurality of metal islands having an array of a plurality of openings having a width that is less than at least one first predetermined wavelength of incident radiation to be provided onto the film or the islands. The metal film or islands are configured such that the incident radiation is resonant with at least one plasmon mode on the metal film or metal islands.
    Type: Application
    Filed: November 20, 2008
    Publication date: March 19, 2009
    Inventors: Hong Koo Kim, Zhijun Sun, Yun Suk Jung
  • Patent number: 7492530
    Abstract: A nano-optic device comprises a plurality of subwavelength apertures in a metal film or between metal islands. The device is adapted to shape a radiation beam transmitted there through. For example, beam shaping includes at least one of beam focusing, beam bending and beam collimating.
    Type: Grant
    Filed: June 11, 2007
    Date of Patent: February 17, 2009
    Assignee: University of Pittsburgh-Of The Commonwealth System Of Higher Education
    Inventors: Hong Koo Kim, Zhijun Sun, Christopher C. Capelli
  • Patent number: 7456383
    Abstract: A nanostructured optical device includes a metal film or a plurality of metal islands having an array of a plurality of openings having a width that is less than at least one first predetermined wavelength of incident radiation to be provided onto the film or the islands. The metal film or islands are configured such that the incident radiation is resonant with at least one plasmon mode on the metal film or metal islands.
    Type: Grant
    Filed: July 22, 2004
    Date of Patent: November 25, 2008
    Assignee: University of Pittsburgh
    Inventors: Hong Koo Kim, Zhijun Sun, Yun Suk Jung
  • Patent number: 7426040
    Abstract: A Fabry-Perot cavity filter includes a first mirror and a second mirror. A gap between the first and the second mirror monotonically varies as a function of width of the filter. This filter may be used with photodetector and a channel selection filter in an optical device, such as a spectrum analyzer. The channel selection filter may be a metal nanooptic filter array which includes plurality of subwavelength apertures in a metal film or between metal islands.
    Type: Grant
    Filed: August 19, 2005
    Date of Patent: September 16, 2008
    Assignee: University of Pittsburgh
    Inventors: Hong Koo Kim, Zhijun Sun, Yun Suk Jung
  • Patent number: 7420156
    Abstract: A metal nanowire array acts as a band pass filter in the visible to IR range. The filter may be used in a monochromator, spectrometer, color camera, analyte detector or other devices.
    Type: Grant
    Filed: February 2, 2006
    Date of Patent: September 2, 2008
    Assignee: University of Pittsburgh
    Inventors: Hong Koo Kim, Zhijun Sun, Yun Suk Jung
  • Publication number: 20080135739
    Abstract: A metal nanowire array acts as a band pass filter in the visible to IR range. The filter may be used in a monochromator, spectrometer, color camera, analyte detector or other devices.
    Type: Application
    Filed: February 2, 2006
    Publication date: June 12, 2008
    Inventors: Hong Koo Kim, Zhijun Sun, Yun Suk Jung
  • Publication number: 20080024873
    Abstract: A nano-optic device comprises a plurality of subwavelength apertures in a metal film or between metal islands. The device is adapted to shape a radiation beam transmitted there through. For example, beam shaping includes at least one of beam focusing, beam bending and beam collimating.
    Type: Application
    Filed: June 11, 2007
    Publication date: January 31, 2008
    Inventors: Hong KIM, Zhijun SUN, Christopher CAPELLI
  • Patent number: 7315426
    Abstract: A nano-optic device comprises a plurality of subwavelength apertures in a metal film or between metal islands. The device is adapted to shape a radiation beam transmitted there through. For example, beam shaping includes at least one of beam focusing, beam bending and beam collimating.
    Type: Grant
    Filed: December 2, 2004
    Date of Patent: January 1, 2008
    Assignee: University of Pittsburgh
    Inventors: Hong Koo Kim, Zhijun Sun, Christopher C. Capelli
  • Publication number: 20060273245
    Abstract: A nanostructured optical device includes a metal film or a plurality of metal islands having an array of a plurality of openings having a width that is less than at least one first predetermined wavelength of incident radiation to be provided onto the film or the islands. The metal film or islands are configured such that the incident radiation is resonant with at least one plasmon mode on the metal film or metal islands.
    Type: Application
    Filed: July 22, 2004
    Publication date: December 7, 2006
    Inventors: Hong Kim, Zhijun Sun, Yun Jung
  • Publication number: 20060209413
    Abstract: A Fabry-Perot cavity filter includes a first mirror and a second mirror. A gap between the first and the second mirror monotonically varies as a function of width of the filter. This filter may be used with photodetector and a channel selection filter in an optical device, such as a spectrum analyzer. The channel selection filter may be a metal nanooptic filter array which includes plurality of subwavelength apertures in a metal film or between metal islands.
    Type: Application
    Filed: August 19, 2005
    Publication date: September 21, 2006
    Inventors: Hong Kim, Zhijun Sun, Yun Jung
  • Publication number: 20050255581
    Abstract: An ordered, single domain nanopore array having a macroscale area in a first material is provided. A method of making a nanopore arrays with a controlled pattern include providing a substrate comprising a first surface having a first patter, depositing a first material capable of forming nanopores onto said first-surface having the first pattern, and anodically oxidizing said first material to form the nanopore array with the controlled pattern in the anodically oxidized first material.
    Type: Application
    Filed: August 22, 2003
    Publication date: November 17, 2005
    Inventors: Hong Kim, Zhijun Sun
  • Publication number: 20050161589
    Abstract: A nano-optic device comprises a plurality of subwavelength apertures in a metal film or between metal islands. The device is adapted to shape a radiation beam transmitted there through. For example, beam shaping includes at least one of beam focusing, beam bending and beam collimating.
    Type: Application
    Filed: December 2, 2004
    Publication date: July 28, 2005
    Inventors: Hong Koo Kim, Zhijun Sun, Christopher Capelli