Patents by Inventor Xin Cheng

Xin Cheng 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: 11536501
    Abstract: An oil separator and an air conditioning system provided with the oil separator are disclosed by the present disclosure. The oil separator comprises: an inlet (20) configured to receive a refrigerant; a duct (10) through which the refrigerant flows, the duct having a circumferential wall and comprising: a first section comprising a first muffler adjacent to the inlet, the first muffler (60) comprising a chamber (11) defined by a first wall (13) of the first section and designed to have a length dimension (L) in a length direction of the duct and a depth dimension (H) intersecting the length dimension; and a second section downstream of the first section, a second wall (23) of the second section being provided with a second muffler (70); and an oil separation assembly (80,90) through which the refrigerant passing through the duct passes. The present disclosure has a simple and reliable structure and is easy to implement.
    Type: Grant
    Filed: September 3, 2019
    Date of Patent: December 27, 2022
    Assignee: CARRIER CORPORATION
    Inventors: HongYi Li, Yuling Shi, Jin Liu, Dongsheng Yang, Yilin Zhang, Xin Cheng
  • Publication number: 20220381684
    Abstract: Systems and methods for detecting photothermal effect in a sample are described herein. In these systems and methods, a pump source is configured to generate a pump pulse train, a probe source is configured to generate a probe pulse train and is synchronized with the pump pulse train, and a camera collects the resulting data. The camera is configured to collect a first signal corresponding to a hot frame, wherein the hot frame includes visible probe beam as modified by a pump beam and a second signal corresponding to a cold frame, wherein the cold frame includes visible probe beam that has not been modified by a pump beam. A processor can subtract the second signal from the first signal to detect the photothermal effect.
    Type: Application
    Filed: December 10, 2019
    Publication date: December 1, 2022
    Inventors: Ji-Xin CHENG, Yeran BAI, Delong ZHANG, Ali SHAKOURI, D. Kerry MAIZE
  • Patent number: 11504914
    Abstract: A system determines an object part density relative to a build region in a layer of build material used in an additive manufacturing machine, the object part density based on a relative portion of the build region where an energy absorbing agent is applied. The system controls a thermal characteristic of the build region in the layer of build material based on the determined object part density.
    Type: Grant
    Filed: June 4, 2018
    Date of Patent: November 22, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Xin Cheng, Vanessa Verzwyvelt, Arthur H. Barnes, Michael Crockett, Jake Wright, Morgan T. Schramm
  • Publication number: 20220354573
    Abstract: A system for neuromodulation includes a split-ring resonator (SRR) comprising a resonance circuit, the SRR being implantable in a cranial target site and a source of microwave signals, wherein the microwave signals are deliverable wirelessly to couple with the SRR to produce a localized electrical field, wherein the localized electrical field inhibits one or more neurons at the cranial target site with submillimeter spatial precision.
    Type: Application
    Filed: May 5, 2022
    Publication date: November 10, 2022
    Applicant: Trustees of Boston University
    Inventors: Chen Yang, Ji-Xin Cheng, Nan Zheng, Yueming Li, Ying Jiang, Lu Lan, Carolyn Marar
  • Publication number: 20220349818
    Abstract: Systems and methods for sensing vibrational absorption induced photothermal effect via a visible light source. A Mid-infrared photothermal probe (MI-PTP, or MIP) approach achieves 10 mM detection sensitivity and sub-micron lateral spatial resolution. Such performance exceeds the diffraction limit of infrared microscopy and allows label-free three-dimensional chemical imaging of live cells and organisms. Distributions of endogenous lipid and exogenous drug inside single cells can be visualized. MIP imaging technology may enable applications from monitoring metabolic activities to high-resolution mapping of drug molecules in living systems, which are beyond the reach of current infrared microscopy.
    Type: Application
    Filed: March 18, 2022
    Publication date: November 3, 2022
    Inventors: Delong Zhang, Ji-Xin Cheng
  • Publication number: 20220308327
    Abstract: Microscopic analysis of a sample includes a system using dark-field illumination. A mid-IR optical source generates a mid-infrared beam, which is directed onto the sample to induce a temperature change by absorption of the mid-infrared beam. A visible light source generates a light illuminating the sample on a substrate and creating a scattered field and a reflected field along a collection path of the system. A pupil mask is positioned along the collection path to block the reflected field while allowing the scattered field to pass therethrough. A camera is positioned at an end of the collection path to collect the scattered field and generate a dark-field image of the sample.
    Type: Application
    Filed: March 25, 2022
    Publication date: September 29, 2022
    Applicant: Trustees of Boston University
    Inventors: Ji-Xin Cheng, Celalettin Yurdakul, Haonan Zong, M. Salim Unlü
  • Patent number: 11457125
    Abstract: In some examples, with respect to three-dimensional printer color management, three-dimensional printer native space coordinates of a three-dimensional printer may be mapped to three-dimensional printer printing agent space coordinates of the three-dimensional printer. The three-dimensional printer printing agent space coordinates may be mapped to color space coordinates. The color space coordinates may be mapped to two-dimensional printer printing agent space coordinates of a two-dimensional printer. The two-dimensional printer printing agent space coordinates may be mapped to two-dimensional printer native space coordinates of the two-dimensional printer. A color management protocol of the two-dimensional printer may be utilized, based on the mapping of the three-dimensional printer native space coordinates to the two-dimensional printer native space coordinates, for the three-dimensional printer to print a three-dimensional object.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: September 27, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Miguel Angel Lopez Alvarez, Morgan T. Schramm, Xin Cheng, Jay S. Gondek
  • Publication number: 20220287758
    Abstract: A tapered fiber optoacoustic emitter includes a nanosecond laser configured to emit laser pulses and an optic fiber. The optic fiber includes a tip configured to guide the laser pulses. The tip has a coating including a diffusion layer and a thermal expansion layer, wherein the diffusion layer includes epoxy and zinc oxide nanoparticles configured to diffuse the light while restricting localized heating. The thermal expansion layer includes carbon nanotubes (CNTs) and Polydimethylsiloxane (PDMS) configured to convert the laser pulses to generate ultrasound. The frequency of the ultrasound is tuned with a thickness of the diffusion layer and a CNT concentration of the expansion layer.
    Type: Application
    Filed: March 9, 2022
    Publication date: September 15, 2022
    Applicant: Trustees of Boston University
    Inventors: Chen Yang, Ji-Xin Cheng, Nan Zheng, Yueming Li, Ying Jiang, Lu Lan, Linli Shi
  • Patent number: 11433456
    Abstract: The disclosure relates to thermoelectric materials prepared by self-propagating high temperature synthesis (SHS) process combining with Plasma activated sintering and methods for preparing thereof. More specifically, the present disclosure relates to the new criterion for combustion synthesis and the method for preparing the thermoelectric materials which meet the new criterion.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: September 6, 2022
    Assignee: WUHAN UNIVERSITY OF TECHNOLOGY
    Inventors: Xinfeng Tang, Xianli Su, Qiang Zhang, Xin Cheng, Dongwang Yang, Gang Zheng, Fan Fu, Tao Liang, Qingjie Zhang
  • Publication number: 20220265798
    Abstract: The present invention is based, in part, on cancer vaccine compositions that comprise PTEN- and p53-deficient cancer cells with activated TGF?-Smad/p63 signaling pathway, and methods for using same to prevent and/or treat cancer.
    Type: Application
    Filed: July 14, 2020
    Publication date: August 25, 2022
    Inventors: Jean Zhao, Yunneng Tang, Xin Cheng
  • Publication number: 20220250327
    Abstract: According to examples, an apparatus may include a processor and a memory on which are stored machine-readable instructions that when executed by the processor, may cause the processor to identify an orientation of a surface of a three-dimensional (3D) model. The instructions may also cause the processor to, based on the identified orientation of the surface, determine an agent formulation to be employed in fabricating a section of a 3D printed part corresponding to the surface, in which each of a plurality of different orientations of surfaces of the 3D model corresponds to a respective different agent formulation.
    Type: Application
    Filed: April 29, 2019
    Publication date: August 11, 2022
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Matthew A. SHEPHERD, Jacob WRIGHT, Dennis J. SCHISSLER, Vanessa VERZWYVELT, Xin CHENG, Morgan T. SCHRAMM
  • Publication number: 20220244185
    Abstract: Systems and methods implement of high-speed delay scanning for spectroscopic SRS imaging characterized by scanning a first pulsed beam across a stepwise reflective surface (such as a stepwise mirror or a reflective blazed grating) in a Littrow configuration to generate near continuous temporal delays relative to a second pulsed beam. Systems and methods also implement deep learning techniques for image restoration of spectroscopic SRS images using a trained encoder-decoder convolution neural network (CNN) which in some embodiments may be designed as a spatial-spectral residual net (SS-ResNet) characterized by two parallel filters including a first convolution filter on the spatial domain and a second convolution filter on the spectral domain.
    Type: Application
    Filed: January 6, 2022
    Publication date: August 4, 2022
    Applicant: Trustees of Boston University
    Inventors: Ji-Xin CHENG, Haonan LIN
  • Publication number: 20220235753
    Abstract: A microfluidic chip pump is provided. The microfluidic chip pump may include: a pump housing comprising a pump cavity, a moveable member arranged in the pump cavity, separating the pump cavity into a first chamber and a second chamber; and an actuator assembly configured to drive the moveable member between a first stable position and a second stable position, changing a volume of the first chamber and a volume of the second chamber. When the moveable member is at the first stable position, the first chamber may reach a minimum volume. When the moveable member is at the second stable position, the first chamber may reach a maximum volume. The microfluidic chip pump may be configured to expel a fixed volume of fluid from the second chamber each time the moveable member is driven from the first stable position to the second stable position.
    Type: Application
    Filed: April 14, 2022
    Publication date: July 28, 2022
    Applicant: HEALTELL (GUANGZHOU) MEDICAL TECHNOLOGY CO., LTD.
    Inventors: Xin CHENG, Hanguang ZHAO, Youwei JIANG, Bob XU, Yu LIU, Rifei CHEN
  • Patent number: 11390644
    Abstract: A method of forming a probe, wherein the method includes converting cholenic acid into a compound with a terminal alkyne group, wherein the converting the cholenic acid comprises using a sequence, wherein the sequence comprises synthesizing a THP-protection group, LiAlH4 reduction, Dess-Martin oxidation, and Seyferth-Gilbert-Bestmann homologation. The method additionally includes forming A-Chol by removing the THP-protection. Further, the method includes forming PhA-Chol from the compound with the terminal alkyne group via a palladiumcatalyzed Sonogashira reaction. Additionally, the method includes forming PhDY Chol from the compound with the terminal alkyne group via a coppercatalyzed Cadiot-Chodkiewicz reaction.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: July 19, 2022
    Assignee: Purdue Research Foundation
    Inventors: Mingji Dai, Ji-Xin Cheng
  • Publication number: 20220184411
    Abstract: Methods of the present invention comprise photoinactivation of catalase in combination with low-concentration peroxide solutions and/or ROS generating agents to provide antibacterial effects.
    Type: Application
    Filed: March 3, 2022
    Publication date: June 16, 2022
    Inventors: Pu-Ting Dong, Jie Hui, Ji-Xin Cheng, Yifan Zhu
  • Patent number: 11345091
    Abstract: In an example, a method includes receiving, at a processor, a data model of an object to be generated in additive manufacturing. A virtual build volume comprising a representation of at least a portion of the object may be segmented into a plurality of nested segments comprising a core segment and a peripheral segment. Segmenting the virtual build volume may comprise determining a dimension of the peripheral segment based on at least one of a geometry of the object and an intended object property.
    Type: Grant
    Filed: July 10, 2017
    Date of Patent: May 31, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Morgan T Schramm, Matthew A Shepherd, Jake Wright, Vanessa Verzwyvelt, Xin Cheng, Hector Lebron
  • Publication number: 20220153766
    Abstract: The present invention provides a class of compounds containing tricyclic heteroaryl groups. Specifically, the present invention provides compounds of the structure represented by the following formula (I) (the definition of each group is as described in the specification), pharmaceutical compositions containing the compounds of formula (I), as well as isotopic derivatives of these compounds, chiral isomers, allosteric forms, different salts, prodrugs, formulations, etc. The compounds of formula (I) can effectively inhibit protein kinases (including EGFR, EGFR (C797S), ALK, and HPK1, etc.), thereby playing a role in the treatment of various tumors.
    Type: Application
    Filed: March 16, 2020
    Publication date: May 19, 2022
    Inventors: Hancheng ZHANG, Xin CHENG
  • Publication number: 20220118709
    Abstract: In an example, a method includes segmenting, using a processor, a virtual volume comprising a representation of at least a part of an object to be generated in additive manufacturing. The virtual volume may be segmented into a plurality of segments and the object may be intended to have a first color. Additive manufacturing control instructions may be determined for the segments. The additive manufacturing control instructions may comprise instructions for distributing the print agent composition and the additive manufacturing control instructions for each segment may be determined based on the thermal properties of a print agent composition intended to provide the first color to compensate for variations in object dimensions associated with the thermal properties.
    Type: Application
    Filed: July 8, 2019
    Publication date: April 21, 2022
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Matthew A. Shepherd, Morgan T. Schramm, Vanessa Verzwyvelt, Dennis J Schissler, Xin Cheng, Jacob Wright
  • Patent number: 11298563
    Abstract: Methods of the present invention comprise photoinactivation of catalase in combination with low-concentration peroxide solutions and/or ROS generating agents to provide antibacterial effects.
    Type: Grant
    Filed: July 28, 2021
    Date of Patent: April 12, 2022
    Assignee: Pulsethera, Inc.
    Inventors: Pu-Ting Dong, Jie Hui, Ji-Xin Cheng, Yifan Zhu
  • Patent number: 11292202
    Abstract: In one example, a control process for an additive manufacturing machine includes displacing a platform, measuring the actual displacement of the platform, determining that the actual displacement varies from a nominal displacement, and determining an amount of an agent to be applied to build material layered on the displaced platform based on the determined variation.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: April 5, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Wesley R Schalk, Arthur H Barnes, Morgan T Schramm, Xin Cheng, Miguel Angel Lopez Alvarez