Patents by Inventor Peipei LIU

Peipei 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).

  • Publication number: 20240124576
    Abstract: The present invention provides a preparation of a Siglec-15 binding protein and the use thereof, and specifically relates to an isolated antigen-binding protein, which comprises HCDR3. Provided is the use of the antigen-binding protein in the prevention and treatment of diseases.
    Type: Application
    Filed: February 22, 2022
    Publication date: April 18, 2024
    Inventors: Xinxiu Yang, Chunyin GU, Zongda WANG, Xiaodan CAO, Xiaowu LIU, Peipei LIU, Lu YANG, Sujun DENG, Zhongzong PAN, Xueping WANG
  • Publication number: 20240117034
    Abstract: Provided is an GARP protein antibody, and a cell comprising or expressing the GA RP protein antibody. The GARP protein antibody binds to human GARP/human TGF-?1 complex with a KD value of about 1.0E-12 or less. Also provided are a pharmaceutical combination comprising the GARP protein antibody and an immune checkpoint inhibitor and use thereof.
    Type: Application
    Filed: January 17, 2022
    Publication date: April 11, 2024
    Applicants: SHANGHAI JEMINCARE PHARMACEUTICAL CO., LTD., JIANGXI JEMINCARE GROUP CO., LTD.
    Inventors: Jianjian ZHANG, Zhongzong PAN, Xinxiu YANG, Xiaowu LIU, Lu YANG, Peipei LIU, Xiaodan CAO, Sujun DENG, Xueping WANG
  • Patent number: 11858040
    Abstract: Disclosed are a method of inspecting a printing quality of a 3D printing object using a femtosecond laser beam during a 3D printing process, and an apparatus and a 3D printing system for the same. A laser beam is irradiated from a femtosecond laser source disposed coaxially with a 3D printing laser source to inspect a state of the printing object. The laser beam generated by the femtosecond laser source is separated into a pump laser beam and a probe laser beam. The printing laser beam irradiated from a 3D printing laser source or the pump laser beam is irradiated onto a printing object to generate ultrasonic waves. To measure the ultrasonic waves, a probe laser beam is irradiated onto the printing object. The probe laser beam reflected by the printing object is detected. The quality of the printing object is inspected by analyzing the reflected probe laser beam.
    Type: Grant
    Filed: December 21, 2020
    Date of Patent: January 2, 2024
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Hoon Sohn, Peipei Liu
  • Patent number: 11815447
    Abstract: Disclosed are a femtosecond laser-based ultrasonic measuring apparatus for a 3D printing process, and a 3D printing system including the apparatus. The apparatus includes a femtosecond laser source for generating a femtosecond laser beam irradiated to inspect a state of a printing object formed by melting a base material by a printing laser beam irradiated from the laser source for 3D printing, a beam splitter for separating the femtosecond laser beam generated by the femtosecond laser source into a pump laser beam and a probe laser beam, an electric/acoustic optical modulator for modulating the pump laser beam, a time delay unit for delaying the probe laser beam, a photo detector for detecting the probe laser beam reflected by the printing object, and a lock-in amplifier for detect an amplitude and a phase of the output signal from the photo detector. The femtosecond laser source is disposed coaxially with a laser source for 3D printing.
    Type: Grant
    Filed: December 8, 2020
    Date of Patent: November 14, 2023
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Hoon Sohn, Peipei Liu
  • Publication number: 20230341353
    Abstract: An example photoionization detector is provided. The example photoionization detector includes an insulation spacer component and a signal collection electrode component disposed on the first surface of the insulation spacer component. In some examples, the signal collection electrode component includes a first electrode layer and a second electrode layer.
    Type: Application
    Filed: April 5, 2023
    Publication date: October 26, 2023
    Inventors: Fan YANG, Renbing TIAN, Hao ZHU, Feng LIANG, Jun TANG, Peipei LIU
  • Publication number: 20230250191
    Abstract: The present application relates to an antigen-binding protein comprising amino acid mutations compared with the light and heavy chain variable region sequences of omalizumab. The antigen-binding protein of the present application is an anti-IgE engineered antibody. The present application also relates to pharmaceutical compositions comprising the antigen-binding protein, and methods thereof for alleviation or treatment of diseases associated with abnormal level of IgE.
    Type: Application
    Filed: July 9, 2021
    Publication date: August 10, 2023
    Inventors: Sujun DENG, Chunyin GU, Xiaowu LIU, Xiaodan CAO, Peipei LIU, Jianjian ZHANG, Zhongzong PAN, Zheng XIAO, Xueping WANG, Haibing GUO
  • Patent number: 11628502
    Abstract: A method of feedback controlling a 3D printing process in real time, and a system therefor are disclosed. The method includes collecting big data, generated through 3D printing experiments, related to process variables of 3D printing, measurement signals, and 3D printing quality of the 3D printing object; building an artificial neural network model by performing machine-learning based on the collected big data; evaluating whether or not a 3D printing quality of the 3D printing object is abnormal in real time based on an actual measurement signal of the 3D printing object and the artificial neural network model; and feedback controlling printing quality of the 3D printing object in real time based on the evaluation result of whether or not the 3D printing quality of the 3D printing object is abnormal.
    Type: Grant
    Filed: September 21, 2022
    Date of Patent: April 18, 2023
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Hoon Sohn, Ikgeun Jeon, Peipei Liu
  • Publication number: 20230051394
    Abstract: A method of feedback controlling a 3D printing process in real time, and a system therefor are disclosed. The method includes collecting big data, generated through 3D printing experiments, related to process variables of 3D printing, measurement signals, and 3D printing quality of the 3D printing object; building an artificial neural network model by performing machine-learning based on the collected big data; evaluating whether or not a 3D printing quality of the 3D printing object is abnormal in real time based on an actual measurement signal of the 3D printing object and the artificial neural network model; and feedback controlling printing quality of the 3D printing object in real time based on the evaluation result of whether or not the 3D printing quality of the 3D printing object is abnormal.
    Type: Application
    Filed: September 21, 2022
    Publication date: February 16, 2023
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Hoon SOHN, Ikgeun JEON, Peipei LIU
  • Patent number: 11484945
    Abstract: A method of feedback controlling a 3D printing process in real time, and a system therefor are disclosed. The method includes collecting big data, generated through 3D printing experiments, related to process variables of 3D printing, measurement signals, and 3D printing quality of the 3D printing object; building an artificial neural network model by performing machine-learning based on the collected big data; evaluating whether or not a 3D printing quality of the 3D printing object is abnormal in real time based on an actual measurement signal of the 3D printing object and the artificial neural network model; and feedback controlling printing quality of the 3D printing object in real time based on the evaluation result of whether or not the 3D printing quality of the 3D printing object is abnormal.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: November 1, 2022
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Hoon Sohn, Ikgeun Jeon, Peipei Liu
  • Publication number: 20220277905
    Abstract: Methods, apparatuses and systems for providing a switching component are disclosed herein. An example switching component may comprise: A switching component comprising: a housing; a carrier body disposed within the housing; a first pair of contact pads disposed on a first surface of the carrier body; and a second pair of contact pads disposed on a second surface of the carrier body, wherein each pair of contact pads is configured to independently make contact with adjacent bridge contact pads in order to actuate an electrical bridge in response to movement of the carrier body.
    Type: Application
    Filed: February 23, 2022
    Publication date: September 1, 2022
    Inventors: Houyong WANG, Yu HU, Yin WEI, Jie RAO, Fan YANG, Peipei LIU
  • Patent number: 11131651
    Abstract: In a method of inspecting a structure, a first ultrasonic signal generated from a target structure by a first laser beam is received. The first ultrasonic signal is generated by providing the first laser beam generated from a first excitation unit to the target structure. A second ultrasonic signal generated from the target structure by a second laser beam different from the first laser beam is received. The second ultrasonic signal is generated by providing the second laser beam generated from a second excitation unit to the target structure. A third ultrasonic signal generated from the target structure by the first and second laser beams is received. The third ultrasonic signal is generated by simultaneously providing the first and second laser beams to the target structure. It is determined whether the target structure is damaged based on first, second and third ultrasonic frequency spectra that are obtained by converting the first, second and third ultrasonic signals, respectively.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: September 28, 2021
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Hoon Sohn, Peipei Liu, Jinho Jang
  • Publication number: 20210197287
    Abstract: Disclosed are an integrated inspection system for a 3D printing process using a thermal image and a laser ultrasound wave and a 3D printing system having the inspection system. The inspection system includes a thermal imaging camera for creating a thermal image of a molten pool formed in a printing object when a base material supplied to the printing object is melted by a laser beam irradiated from a 3D printing laser source, a laser ultrasonic device for receiving a laser ultrasonic wave included in the laser beam reflected from the printing object, and a control unit for estimating a physical property of the printing object and detecting a defect of the printing object based on the thermal image created by the thermal imaging camera and the laser ultrasound wave received by the laser ultrasonic device. The thermal imaging camera and the laser ultrasonic device are disposed coaxially with the 3D printing laser source.
    Type: Application
    Filed: December 22, 2020
    Publication date: July 1, 2021
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Hoon SOHN, Ikgeun JEON, Peipei LIU
  • Publication number: 20210199567
    Abstract: Disclosed are a femtosecond laser-based ultrasonic measuring apparatus for a 3D printing process, and a 3D printing system including the apparatus. The apparatus includes a femtosecond laser source for generating a femtosecond laser beam irradiated to inspect a state of a printing object formed by melting a base material by a printing laser beam irradiated from the laser source for 3D printing, a beam splitter for separating the femtosecond laser beam generated by the femtosecond laser source into a pump laser beam and a probe laser beam, an electric/acoustic optical modulator for modulating the pump laser beam, a time delay unit for delaying the probe laser beam, a photo detector for detecting the probe laser beam reflected by the printing object, and a lock-in amplifier for detect an amplitude and a phase of the output signal from the photo detector. The femtosecond laser source is disposed coaxially with a laser source for 3D printing.
    Type: Application
    Filed: December 8, 2020
    Publication date: July 1, 2021
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Hoon SOHN, Peipei LIU
  • Publication number: 20210197279
    Abstract: Disclosed are a method of inspecting a printing quality of a 3D printing object using a femtosecond laser beam during a 3D printing process, and an apparatus and a 3D printing system for the same. A laser beam is irradiated from a femtosecond laser source disposed coaxially with a 3D printing laser source to inspect a state of the printing object. The laser beam generated by the femtosecond laser source is separated into a pump laser beam and a probe laser beam. The printing laser beam irradiated from a 3D printing laser source or the pump laser beam is irradiated onto a printing object to generate ultrasonic waves. To measure the ultrasonic waves, a probe laser beam is irradiated onto the printing object. The probe laser beam reflected by the printing object is detected. The quality of the printing object is inspected by analyzing the reflected probe laser beam.
    Type: Application
    Filed: December 21, 2020
    Publication date: July 1, 2021
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Hoon SOHN, Peipei LIU
  • Publication number: 20210197283
    Abstract: A method of feedback controlling a 3D printing process in real time, and a system therefor are disclosed. The method includes collecting big data, generated through 3D printing experiments, related to process variables of 3D printing, measurement signals, and 3D printing quality of the 3D printing object; building an artificial neural network model by performing machine-learning based on the collected big data; evaluating whether or not a 3D printing quality of the 3D printing object is abnormal in real time based on an actual measurement signal of the 3D printing object and the artificial neural network model; and feedback controlling printing quality of the 3D printing object in real time based on the evaluation result of whether or not the 3D printing quality of the 3D printing object is abnormal.
    Type: Application
    Filed: December 17, 2020
    Publication date: July 1, 2021
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Hoon SOHN, Ikgeun JEON, Peipei LIU
  • Publication number: 20200011839
    Abstract: In a method of inspecting a structure, a first ultrasonic signal generated from a target structure by a first laser beam is received. The first ultrasonic signal is generated by providing the first laser beam generated from a first excitation unit to the target structure. A second ultrasonic signal generated from the target structure by a second laser beam different from the first laser beam is received. The second ultrasonic signal is generated by providing the second laser beam generated from a second excitation unit to the target structure. A third ultrasonic signal generated from the target structure by the first and second laser beams is received. The third ultrasonic signal is generated by simultaneously providing the first and second laser beams to the target structure. It is determined whether the target structure is damaged based on first, second and third ultrasonic frequency spectra that are obtained by converting the first, second and third ultrasonic signals, respectively.
    Type: Application
    Filed: May 31, 2019
    Publication date: January 9, 2020
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Hoon Sohn, Peipei Liu, Jinho Jang
  • Publication number: 20190322638
    Abstract: Disclosed are dipyridyl alkaloid, a preparation method therefor and use thereof. The structure of the dipyridyl alkaloid is as shown in formula I. The dipyridyl alkaloid has a tumor cell proliferation inhibitory activity and can be used as a tumor cell proliferation inhibitor or for developing an anti-tumor drug.
    Type: Application
    Filed: November 14, 2017
    Publication date: October 24, 2019
    Inventors: Weiming ZHU, Xiangui MEI, Peng FU, Yi WANG, Peipei LIU
  • Publication number: 20180252693
    Abstract: Embodiments relate generally to methods and systems for balancing the internal pressure of a gas detector. A method for venting internal pressure changes of a gas detector may comprise providing an inlet to a sensor located within a housing of the gas detector; isolating the sensor from the rest of the interior of the housing; providing at least one vent between the interior of the housing and the external environment, wherein the sensor is isolated from airflow into and out of the vent; and preventing one or more elements from entering the interior of the housing through the at least one vent via a breathable membrane aligned with the at least one vent.
    Type: Application
    Filed: March 6, 2017
    Publication date: September 6, 2018
    Inventors: Ouyang Yang, Tao Chen, Peipei Liu
  • Publication number: 20180242480
    Abstract: Embodiments relate generally to systems and methods for dissipating electric charge within a particulate matter sensor, and reducing the effects of electromagnetic interference within the particulate matter sensor. A particulate matter sensor may comprise an airflow channel; a light source configured to pass light through the airflow channel; a photodetector configured to receive light from the light source after it passes through the airflow channel; a printed circuit board coupled to the photodetector having a processor and a memory storing instructions which, when executed by the processor, determines an indication of a mass concentration of particles in the airflow channel based on an output of the photodetector; and a shield cover configured to attach to and cover at least a portion of the printed circuit board, and configured to reduce the effects of electromagnetic interference within the particulate matter sensor.
    Type: Application
    Filed: February 17, 2017
    Publication date: August 23, 2018
    Inventors: Kai Liu, Tao Chen, Peipei Liu, Tong Shang, Ouyang Yang
  • Patent number: 9772315
    Abstract: The present invention relates to a safety diagnosis method for a structure using a nonlinear ultrasonic wave modulation technique. The safety diagnosis method includes: making the structure vibrate by applying signals of different ultrasonic frequencies; converting the responses of the structure generated by the vibration into digital signals; extracting first modulation signals by subtracting the harmonic responses and the linear responses of the signals of different ultrasonic frequencies from the digital signals and synchronously demodulating the digital signals; constructing a first sideband spectrogram by combining the first modulation signals generated by continuously changing at least frequency among the signals of different ultrasonic frequencies; and deciding whether the structure is cracked based on the first sideband spectrogram.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: September 26, 2017
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Hoon Sohn, Hyung Jin Lim, Su Young Yang, Peipei Liu