Patents by Inventor Xianfan Xu

Xianfan 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: 20220234282
    Abstract: A rapidly printing 3D nanostructures arrangement, comprising a first photonic source configured to provide photoinitiation energy to a polymer medium via a dynamic light spatial modulator to an excited state to initiate polymerization, a second photonic source configured to selectively provide inhibition energy to the polymerized medium to a depleted state to inhibit polymerization thereby generating a dead zone below a growth zone, the dead zone allows continuous 3D polymerization.
    Type: Application
    Filed: April 19, 2022
    Publication date: July 28, 2022
    Applicant: Purdue Research Foundation
    Inventors: Xianfan Xu, Bryan William Boudouris, Liang Pan
  • Patent number: 11305482
    Abstract: A rapidly printing 3D nanostructures arrangement, comprising a first photonic source configured to provide photoinitiation energy to a polymer medium via a dynamic light spatial modulator to an excited state to initiate polymerization, a second photonic source configured to selectively provide inhibition energy to the polymerized medium to a depleted state to inhibit polymerization thereby generating a dead zone below a growth zone, the dead zone allows continuous 3D polymerization.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: April 19, 2022
    Assignee: Purdue Research Foundation
    Inventors: Xianfan Xu, Bryan William Boudouris, Liang Pan
  • Patent number: 10861668
    Abstract: A system for generating an electron beam array, comprising a light source, a first substrate having a plurality of plasmonic lenses mounted thereon, the plasmonic lenses configured to received light from the light source and produce an electron emission, and a plurality of electrostatic microlenses configured to focus the electron emissions into a beam for focusing on a wafer substrate. A light source modulator and digital micro mirror may be included which captures light from the light source and projects light beamlets on the plasmonic lenses.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: December 8, 2020
    Assignee: Purdue Research Foundation
    Inventors: Liang Pan, Xianfan Xu
  • Publication number: 20190019648
    Abstract: A system for generating an electron beam array, comprising a light source, a first substrate having a plurality of plasmonic lenses mounted thereon, the plasmonic lenses configured to received light from the light source and produce an electron emission, and a plurality of electrostatic microlenses configured to focus the electron emissions into a beam for focusing on a wafer substrate. A light source modulator and digital micro mirror may be included which captures light from the light source and projects light beamlets on the plasmonic lenses.
    Type: Application
    Filed: September 11, 2018
    Publication date: January 17, 2019
    Applicant: Purdue Research Foundation
    Inventors: Liang Pan, Xianfan Xu
  • Patent number: 10074509
    Abstract: A system for generating an electron beam array, comprising a light source, a first substrate having a plurality of plasmonic lenses mounted thereon, the plasmonic lenses configured to received light from the light source and produce an electron emission, and a plurality of electrostatic microlenses configured to focus the electron emissions into a beam for focusing on a wafer substrate. A light source modulator and digital micro mirror may be included which captures light from the light source and projects light beamlets on the plasmonic lenses.
    Type: Grant
    Filed: June 7, 2016
    Date of Patent: September 11, 2018
    Assignee: PURDUE RESEARCH FOUNDATION
    Inventors: Liang Pan, Xianfan Xu
  • Patent number: 10000384
    Abstract: A method of forming single and few layer graphene on a quartz substrate in one embodiment includes providing a quartz substrate, melting a portion of the quartz substrate, diffusing a form of carbon into the melted portion to form a carbon and quartz mixture, and precipitating at least one graphene layer out of the carbon and quartz mixture.
    Type: Grant
    Filed: May 30, 2013
    Date of Patent: June 19, 2018
    Assignee: Purdue Research Foundation
    Inventors: Xianfan Xu, Dapeng Wei, Peide Ye
  • Publication number: 20180015661
    Abstract: A rapidly printing 3D nanostructures arrangement, comprising a first photonic source configured to provide photoinitiation energy to a polymer medium via a dynamic light spatial modulator to an excited state to initiate polymerization, a second photonic source configured to selectively provide inhibition energy to the polymerized medium to a depleted state to inhibit polymerization thereby generating a dead zone below a growth zone, the dead zone allows continuous 3D polymerization.
    Type: Application
    Filed: July 17, 2017
    Publication date: January 18, 2018
    Inventors: Xianfan Xu, Bryan William Boudouris, Liang Pan
  • Publication number: 20160358743
    Abstract: A system for generating an electron beam array, comprising a light source, a first substrate having a plurality of plasmonic lenses mounted thereon, the plasmonic lenses configured to received light from the light source and produce an electron emission, and a plurality of electrostatic microlenses configured to focus the electron emissions into a beam for focusing on a wafer substrate. A light source modulator and digital micro mirror may be included which captures light from the light source and projects light beamlets on the plasmonic lenses.
    Type: Application
    Filed: June 7, 2016
    Publication date: December 8, 2016
    Applicant: Purdue Research Foundation
    Inventors: Liang Pan, Xianfan Xu
  • Patent number: 9437228
    Abstract: An antenna for heat assisted magnetic recording is disclosed. The antenna includes an optically opaque material and an optically transparent material positioned on the optically opaque material, the optically transparent material includes a half bowtie shape which includes a first half-wing substantially shaped in form of a right angle trapezoid, having a height substantially equal to the overall height of the half bowtie, a second half-wing substantially shaped in form of a mirror image of the first half-wing and formed proximate and coupled to the first half-wing by a substantially rectangular aperture having an aperture width and an aperture height. The aperture height is as small as 1 nm.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: September 6, 2016
    Assignee: PURDUE RESEARCH FOUNDATION
    Inventors: Xianfan Xu, Edward Kinzel
  • Publication number: 20150269959
    Abstract: An antenna for heat assisted magnetic recording is disclosed. The antenna includes an optically opaque material and an optically transparent material positioned on the optically opaque material, the optically transparent material includes a half bowtie shape which includes a first half-wing substantially shaped in form of a right angle trapezoid, having a height substantially equal to the overall height of the half bowtie, a second half-wing substantially shaped in form of a mirror image of the first half-wing and formed proximate and coupled to the first half-wing by a substantially rectangular aperture having an aperture width and an aperture height. The aperture height is as small as 1 nm.
    Type: Application
    Filed: March 23, 2015
    Publication date: September 24, 2015
    Applicant: Purdue Research Foundation
    Inventors: Xianfan Xu, Edward Kinzel
  • Publication number: 20130323158
    Abstract: A method of forming single and few layer graphene on a quartz substrate in one embodiment includes providing a quartz substrate, melting a portion of the quartz substrate, diffusing a form of carbon into the melted portion to form a carbon and quartz mixture, and precipitating at least one graphene layer out of the carbon and quartz mixture.
    Type: Application
    Filed: May 30, 2013
    Publication date: December 5, 2013
    Inventors: Xianfan Xu, Dapeng Wei, Peide Ye
  • Patent number: 7969654
    Abstract: A volume Fresnel zone plate and a method of producing such a device using a femtosecond laser for direct writing of zone plates. A volume zone plate has a number of Fresnel zone plate layers designed to focus light coherently to a single spot. Embodiments include both low numerical aperture (NA) and high NA zone plates, and provide a significant increase in overall diffraction efficiency over a single Fresnel zone plate.
    Type: Grant
    Filed: October 24, 2007
    Date of Patent: June 28, 2011
    Assignee: Purdue Research Foundation
    Inventors: Okan K. Ersoy, Xianfan Xu, Pornsak Srisungsitthisunti
  • Publication number: 20070105395
    Abstract: An apparatus and method for producing electronic components using thick-film inks, and the electronic components manufactured therefrom. The thick-film inks, which include silver and copper inks are applied to a substrate and sintered with a laser. This process allows the fabrication of components on low temperature substrates.
    Type: Application
    Filed: November 2, 2006
    Publication date: May 10, 2007
    Inventors: Edward Kinzel, Xianfan Xu