Patents by Inventor Xuedong Liu

Xuedong Liu 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: 10115559
    Abstract: One modified source-conversion unit and one method to reduce the Coulomb Effect in a multi-beam apparatus are proposed. In the modified source-conversion unit, the aberration-compensation function is carried out after the image-forming function has changed each beamlet to be on-axis locally, and therefore avoids undesired aberrations due to the beamlet tilting/shifting. A Coulomb-effect-reduction means with plural Coulomb-effect-reduction openings is placed close to the single electron source of the apparatus and therefore the electrons not in use can be cut off as early as possible.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: October 30, 2018
    Assignee: HERMES MICROVISION, INC.
    Inventors: Xuedong Liu, Weiming Ren, Shuai Li, Zhongwei Chen
  • Publication number: 20180306800
    Abstract: Methods and materials involved in assessing samples (e.g., cancer cells) for the status of PINK1-Parkin pathway biomarkers, as well as materials and methods for identifying cancer patients likely to respond to a particular cancer treatment regimen.
    Type: Application
    Filed: April 20, 2018
    Publication date: October 25, 2018
    Inventors: Xuedong Liu, Gail Eckhardt, Gan Zhang, Conggang Zhang, Zeyu Liu, Eric Bunker
  • Patent number: 10109456
    Abstract: A multi-beam apparatus for observing a sample with high resolution and high throughput is proposed. In the apparatus, a source-conversion unit changes a single electron source into a virtual multi-source array, a primary projection imaging system projects the array to form plural probe spots on the sample, and a condenser lens adjusts the currents of the plural probe spots. In the source-conversion unit, the image-forming means is on the upstream of the beamlet-limit means, and thereby generating less scattered electrons. The image-forming means not only forms the virtual multi-source array, but also compensates the off-axis aberrations of the plurality of probe spots.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: October 23, 2018
    Assignee: HERMES MICROVISION INC.
    Inventors: Weiming Ren, Shuai Li, Xuedong Liu, Zhongwei Chen
  • Patent number: 10062541
    Abstract: A new multi-beam apparatus with a total FOV variable in size, orientation and incident angle, is proposed. The new apparatus provides more flexibility to speed the sample observation and enable more samples observable. More specifically, as a yield management tool to inspect and/or review defects on wafers/masks in semiconductor manufacturing industry, the new apparatus provide more possibilities to achieve a high throughput and detect more kinds of defects.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: August 28, 2018
    Assignee: HERMES MICROVISION INC.
    Inventors: Weiming Ren, Xuedong Liu, Xuerang Hu, Zhongwei Chen
  • Patent number: 9984022
    Abstract: Methods and apparatus to identify a communication protocol being used in a process control system are disclosed. An example apparatus includes a process control device including a port to be in communication with a bus, the process control device to receive a first signal at the port and a second signal at the port, the process control device including a protocol detector to compare the first signal to reference communication protocols to identify the first signal as being associated with a first communication protocol, the protocol detector to compare the second signal to the reference communication protocols to identify the second signal as being associated with a second communication protocol, the first communication protocol being different than the second communication protocol, the processor to process the first signal based on the first communication protocol and the second signal based on the second communication protocol.
    Type: Grant
    Filed: July 19, 2016
    Date of Patent: May 29, 2018
    Assignee: BRISTOL, INC.
    Inventor: Xuedong Liu
  • Patent number: 9922799
    Abstract: A multi-beam apparatus for observing a sample with high resolution and high throughput and in flexibly varying observing conditions is proposed. The apparatus uses a movable collimating lens to flexibly vary the currents of the plural probe spots without influencing the intervals thereof, a new source-conversion unit to form the plural images of the single electron source and compensate off-axis aberrations of the plural probe spots with respect to observing conditions, and a pre-beamlet-forming means to reduce the strong Coulomb effect due to the primary-electron beam.
    Type: Grant
    Filed: July 19, 2016
    Date of Patent: March 20, 2018
    Assignee: Hermes Microvision, Inc.
    Inventors: Shuai Li, Weiming Ren, Xuedong Liu, Juying Dou, Xuerang Hu, Zhongwei Chen
  • Publication number: 20180044352
    Abstract: The present invention relates to novel hydroxamic acids which are specific histone deacetylase (HDAC) inhibitors and/or TTK/Mps1 kinase inhibitors, including pharmaceutically acceptable salts thereof, which are useful for modulating HDAC and/or TTK/Mps1 kinase activity, pharmaceutical compositions comprising these compounds, and processes for their preparation.
    Type: Application
    Filed: July 19, 2017
    Publication date: February 15, 2018
    Applicant: The Regents of the University of Colorado, A Body Corporate
    Inventors: Xuedong Liu, Gan Zhang, Daniel Chuen-Fong Chan, Anthony D. Piscopio
  • Patent number: 9840520
    Abstract: The present invention relates to novel hydroxamic acids which are specific histone deacetylase (HDAC) inhibitors and/or TTK/Mps1 kinase inhibitors, including pharmaceutically acceptable salts thereof, which are useful for modulating HDAC and/or TTK/Mps1 kinase activity, pharmaceutical compositions comprising these compounds, and processes for their preparation.
    Type: Grant
    Filed: May 14, 2015
    Date of Patent: December 12, 2017
    Assignee: The Regents of the University of Colorado, A Body Corporate
    Inventors: Xuedong Liu, Gan Zhang, Daniel Chuen-Fong Chan, Anthony D. Piscopio
  • Publication number: 20170309449
    Abstract: A multi-beam apparatus for observing a sample with high resolution and high throughput is proposed. In the apparatus, a source-conversion unit changes a single electron source into a virtual multi-source array, a primary projection imaging system projects the array to form plural probe spots on the sample, and a condenser lens adjusts the currents of the plural probe spots. In the source-conversion unit, the image-forming means is on the upstream of the beamlet-limit means, and thereby generating less scattered electrons. The image-forming means not only forms the virtual multi-source array, but also compensates the off-axis aberrations of the plurality of probe spots.
    Type: Application
    Filed: June 26, 2017
    Publication date: October 26, 2017
    Inventors: Weiming REN, Shuai LI, Xuedong LIU, Zhongwei CHEN
  • Publication number: 20170213688
    Abstract: A new multi-beam apparatus with a total FOV variable in size, orientation and incident angle, is proposed. The new apparatus provides more flexibility to speed the sample observation and enable more samples observable. More specifically, as a yield management tool to inspect and/or review defects on wafers/masks in semiconductor manufacturing industry, the new apparatus provide more possibilities to achieve a high throughput and detect more kinds of defects.
    Type: Application
    Filed: January 27, 2017
    Publication date: July 27, 2017
    Inventors: Weiming Ren, Xuedong Liu, Xuerang Hu, Zhongwei Chen
  • Patent number: 9707161
    Abstract: A color-changing composition for caring for and/or making up keratin materials is disclosed. The composition comprises: —a physiologically acceptable medium including at least an aqueous phase, —color-changing microcapsules, said microcapsules having a size ranging from 50 ?m to 1000 ?m, preferably from 80 ?m to 800 ?m, in particular from 100 ?m to 400 ?m, and comprising: (A) a core, having preferably a size ranging from 20 ?m to 800 ?m, comprising at least one colorant and preferably at least one binder, said colorant(s) including preferably at least one inorganic pigment preferably selected from iron oxide(s), and (B) a pressure-breakable wall layer surrounding said core, having preferably a thickness of 10 ?m to 300 ?m, comprising at least one colorant and preferably at least one binder, said colorant(s) including preferably at least titanium dioxide particles, Wherein said microcapsules includes at least 70% by weight of colorant(s), compared to the total weight of said microcapsules.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: July 18, 2017
    Assignee: L'OREAL
    Inventors: Xuedong Liu, Cyril Lemoine, Qing Yu
  • Patent number: 9691588
    Abstract: A multi-beam apparatus for observing a sample with high resolution and high throughput is proposed. In the apparatus, a source-conversion unit changes a single electron source into a virtual multi-source array, a primary projection imaging system projects the array to form plural probe spots on the sample, and a condenser lens adjusts the currents of the plural probe spots. In the source-conversion unit, the image-forming means is on the upstream of the beamlet-limit means, and thereby generating less scattered electrons. The image-forming means not only forms the virtual multi-source array, but also compensates the off-axis aberrations of the plurality of probe spots.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: June 27, 2017
    Assignee: HERMES MICROVISION, INC.
    Inventors: Weiming Ren, Shuai Li, Xuedong Liu, Zhongwei Chen
  • Patent number: 9691586
    Abstract: A multi-beam apparatus for observing a sample with high resolution and high throughput is proposed. In the apparatus, a source-conversion unit changes a single electron source into a virtual multi-source array, a primary projection imaging system projects the array to form plural probe spots on the sample, and a condenser lens adjusts the currents of the plural probe spots. In the source-conversion unit, the image-forming means is on the upstream of the beamlet-limit means, and thereby generating less scattered electrons. The image-forming means not only forms the virtual multi-source array, but also compensates the off-axis aberrations of the plurality of probe spots.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: June 27, 2017
    Assignee: HERMES MICROVISION, INC.
    Inventors: Weiming Ren, Shuai Li, Xuedong Liu, Zhongwei Chen
  • Patent number: 9675533
    Abstract: A changing color composition in the form of a gel for caring for and/or making up keratin materials is disclosed. The composition comprises in a physiologically acceptable medium, a) from 0.1 to 10% by weight preferably from 0.5 to 10% more preferably from 1 to 5% by weight relative to the weight of the composition of microcapsules containing releasable colorant(s), said microcapsules comprising: —a core comprising one organic material, —at least one layered coating surrounding said core, the layered coating comprising at least one polymer at least one colorant, and advantageously at least one lipid-based material, b) at least 3% by weight, preferably at least 5% by weight, more preferably at least 8% by weight and advantageously at least 10% by weight relative to the weight of the composition of an aqueous phase comprising water and at least one compound chosen from polyols, glycols and C2-C8 monoalcohols, and mixtures thereof, and c) at least one hydrophilic gelifying agent.
    Type: Grant
    Filed: January 16, 2013
    Date of Patent: June 13, 2017
    Assignee: L'OREAL
    Inventors: Rong Zhu, XueDong Liu, Juan Chu, Qing Yu, Jing Chen
  • Patent number: 9668949
    Abstract: A changing color composition for caring for and/or making up keratin materials on the form of an O/W emulsion comprising, in a physiologically acceptable medium, at least a) microcapsules containing releasable colorant(s), said microcapsules comprising: —a core comprising one organic material, —at least one layered coating surrounding said core, the layered coating comprising at least one polymer, at least one colorant, and advantageously at least one lipid-based material, b) at least 5% by weight, more preferably at least 8% by weight and advantageously at least 10% by weight relative to the weight of the composition of an aqueous phase comprising water and at least one compound chosen from polyols, glycols C2-C8 monoalcohols and mixtures thereof, c) non entrapped Ti02, and d) an O/W emulsifier.
    Type: Grant
    Filed: January 16, 2013
    Date of Patent: June 6, 2017
    Assignee: L'OREAL
    Inventors: Yihao Chai, XueDong Liu, Weiyi Guan, Qing Yu, Jing Chen
  • Publication number: 20170154756
    Abstract: A secondary projection imaging system in a multi-beam apparatus is proposed, which makes the secondary electron detection with high collection efficiency and low cross-talk. The system employs one zoom lens, one projection lens and one anti-scanning deflection unit. The zoom lens and the projection lens respectively perform the zoom function and the anti-rotating function to remain the total imaging magnification and the total image rotation with respect to the landing energies and/or the currents of the plural primary beamlets. The anti-scanning deflection unit performs the anti-scanning function to eliminate the dynamic image displacement due to the deflection scanning of the plural primary beamlets.
    Type: Application
    Filed: November 30, 2016
    Publication date: June 1, 2017
    Inventors: Weiming Ren, Xuedong Liu, Xuerang Hu, Zhongwei Chen
  • Patent number: 9662283
    Abstract: A changing color composition for caring for and/or making up keratin materials is disclosed. The composition comprises in a physiologically acceptable medium, at least: a) microcapsules containing releasable colorant(s), said microcapsules comprising: a core comprising one organic material, at least one layered coating surrounding said core, the layered coating comprising at least one polymer, at least one colorant, and advantageously at least one lipid-based material, b) at least 3% by weight, preferably at least 5 by weight, more preferably at least 8% by weight and advantageously at least 10% by weight relative to the weight of the composition of an aqueous phase comprising water and at least one compound chosen from polyols, glycols and C2-C8 monoalcohols, and mixtures thereof, c) at least one hydrophilic gelifying agent, d) and optionally 0.
    Type: Grant
    Filed: January 16, 2013
    Date of Patent: May 30, 2017
    Assignee: L'OREAL
    Inventors: Cyril Lemoine, XueDong Liu, Juan Chu, Qing Yu
  • Publication number: 20170125206
    Abstract: A multi-beam apparatus for observing a sample with high resolution and high throughput is proposed. In the apparatus, a source-conversion unit changes a single electron source into a virtual multi-source array, a primary projection imaging system projects the array to form plural probe spots on the sample, and a condenser lens adjusts the currents of the plural probe spots. In the source-conversion unit, the image-forming means is on the upstream of the beamlet-limit means, and thereby generating less scattered electrons. The image-forming means not only forms the virtual multi-source array, but also compensates the off-axis aberrations of the plurality of probe spots.
    Type: Application
    Filed: January 11, 2017
    Publication date: May 4, 2017
    Inventors: Weiming Ren, Shuai Li, Xuedong Liu, Zhongwei Chen
  • Publication number: 20170125205
    Abstract: One modified source-conversion unit and one method to reduce the Coulomb Effect in a multi-beam apparatus are proposed. In the modified source-conversion unit, the aberration-compensation function is carried out after the image-forming function has changed each beamlet to be on-axis locally, and therefore avoids undesired aberrations due to the beamlet tilting/shifting. A Coulomb-effect-reduction means with plural Coulomb-effect-reduction openings is placed close to the single electron source of the apparatus and therefore the electrons not in use can be cut off as early as possible.
    Type: Application
    Filed: January 11, 2017
    Publication date: May 4, 2017
    Inventors: Xuedong Liu, Weiming Ren, Shuai Li, Zhongwei Chen
  • Patent number: 9607805
    Abstract: One modified source-conversion unit and one method to reduce the Coulomb Effect in a multi-beam apparatus are proposed. In the modified source-conversion unit, the aberration-compensation function is carried out after the image-forming function has changed each beamlet to be on-axis locally, and therefore avoids undesired aberrations due to the beamlet tilting/shifting. A Coulomb-effect-reduction means with plural Coulomb-effect-reduction openings is placed close to the single electron source of the apparatus and therefore the electrons not in use can be cut off as early as possible.
    Type: Grant
    Filed: May 10, 2016
    Date of Patent: March 28, 2017
    Assignee: HERMES MICROVISION INC.
    Inventors: Xuedong Liu, Weiming Ren, Shuai Li, Zhongwei Chen