Patents by Inventor Haijun Gao

Haijun Gao 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: 11975444
    Abstract: A finger for a robotic gripper may include a flexible backbone, a plurality of jamming layers, and a membrane bag. The backbone may have a first side, a second side, a third side, and a fourth side. The backbone may include a flexible beam, and a plurality of branches attached to the flexible beam and spaced apart from one another. Each branch may include a first end surface extending along the first side, and a second end surface extending along the second side. The first end surfaces may collectively extend along a majority of the first side, and the second end surfaces may collectively extend along a majority of the second side. The jamming layers may be positioned along the third side or the fourth side. The membrane bag may be positioned over the jamming layers.
    Type: Grant
    Filed: May 5, 2023
    Date of Patent: May 7, 2024
    Assignee: Ohio State Innovation Foundation
    Inventors: Haijun Su, Yuan Gao
  • Publication number: 20240073287
    Abstract: Embodiments of the present disclosure provide a method for activating at least a first edge server and a second edge server. The first edge server includes a first service processor, and the second edge server includes a second service processor. The method includes establishing a data communication connection between the first service processor and the second service processor, establishing a data communication connection between the first service processor and a specified website, establishing a trusted communication between the first service processor and the specified website, establishing a trusted communication between the first service processor and the second service processor, obtaining an activation right from the specified website by the first service processor, and performing the activation right to activate the first edge server and the second edge server by the first service processor.
    Type: Application
    Filed: August 31, 2023
    Publication date: February 29, 2024
    Inventors: Ming LEI, Haijun XU, Zhipeng GAO, Da LI, Shaohua LI
  • Publication number: 20220020648
    Abstract: The present disclosure relates to a device and method for measuring wafers. The device comprises: a moving platform, which is used to adjust the location of wafers; a first pre-alignment module and a first image recognition module, which are used to align a first wafer at a first location on the moving platform before measuring the first wafer; a second pre-alignment module and a second image recognition module, which are used to align a second wafer at a second location on the moving platform before measuring the second wafer; and a measurement module, which is used to measure the first wafer and the second wafer at a third location on the moving platform, wherein the first location, second location and third location are different from each other. The embodiments of the present disclosure may improve the measurement efficiency of the device.
    Type: Application
    Filed: November 1, 2019
    Publication date: January 20, 2022
    Inventors: Bin LI, Haijun GAO
  • Patent number: 10309834
    Abstract: The present disclosure discloses a calibrating method, apparatus, and corresponding measurement system for a composite waveplate. The calibrating method comprises: A. determining a first matrix characterizing the composite waveplate, the first matrix including at least one unknown number; B. determining a theoretical relationship between a light intensity and an alignment angle offset value of the composite waveplate based on the first matrix; and C. calibrating based on the theoretical relationship between a light intensity and an alignment angle offset value of the composite waveplate determined in step (B) and actually measured light intensity data to obtain a second matrix that may characterize the composite waveplate and does not contain the unknown number. The technical solution of the present disclosure may greatly reduce the amount of unknown numbers when calibrating a composite waveplate or a measuring system, thereby lowering the difficulty of calibration and improving the precision of calibration.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: June 4, 2019
    Assignee: Raintree Scientific Instruments (Shanghai) Corporation
    Inventors: Fengjiao Zhong, Haijun Gao, Jiangtao Dang
  • Publication number: 20180283951
    Abstract: The present disclosure discloses a calibrating method, apparatus, and corresponding measurement system for a composite waveplate. The calibrating method comprises: A. determining a first matrix characterizing the composite waveplate, the first matrix including at least one unknown number; B. determining a theoretical relationship between a light intensity and an alignment angle offset value of the composite waveplate based on the first matrix; and C. calibrating based on the theoretical relationship between a light intensity and an alignment angle offset value of the composite waveplate determined in step (B) and actually measured light intensity data to obtain a second matrix that may characterize the composite waveplate and does not contain the unknown number. The technical solution of the present disclosure may greatly reduce the amount of unknown numbers when calibrating a composite waveplate or a measuring system, thereby lowering the difficulty of calibration and improving the precision of calibration.
    Type: Application
    Filed: April 14, 2016
    Publication date: October 4, 2018
    Inventors: Fengjiao ZHONG, Haijun GAO, Jiangtao DANG
  • Patent number: 9200998
    Abstract: Methods and systems are provided to avoid the rotation action with the polarizer and the analyzer in complex ellipsometric measurement and repeated processes. In particular, methods and systems are provided which polarize the incident light in a fixed azimuthal angle then illuminate the polarized light onto the target surface, analyze the surface polarized characteristics light in a fixed azimuthal angle, and obtain the light intensity and phase information corresponding to the target surface. Then, based on the relationship between the characteristic information detected by electromagnetic wave and the light intensity information, the disclosed methods and systems obtain the characteristic information of the target surface.
    Type: Grant
    Filed: September 3, 2009
    Date of Patent: December 1, 2015
    Assignee: RAINTREE SCIENTIFIC INSTRUMENTS (SHANGHAI) CORPORATION
    Inventors: Jiang-tao Dang, Ningning Pan, Haijun Gao
  • Publication number: 20120038920
    Abstract: Methods and systems are provided to avoid the rotation action with the polarizer and the analyzer in complex ellipsometric measurement and repeated processes. In particular, methods and systems are provided which polarize the incident light in a fixed azimuthal angle then illuminate the polarized light onto the target surface, analyze the surface polarized characteristics light in a fixed azimuthal angle, and obtain the light intensity and phase information corresponding to the target surface. Then, based on the relationship between the characteristic information detected by electromagnetic wave and the light intensity information, the disclosed methods and systems obtain the characteristic information of the target surface.
    Type: Application
    Filed: September 3, 2009
    Publication date: February 16, 2012
    Applicant: Raintree Scientific Instruments (Shanghai) Corporation
    Inventors: Jiang-tao DANG, Ningning PAN, Haijun GAO
  • Publication number: 20110176133
    Abstract: To avoid the rotation action with the polarizer and the analyzer in ellipsometric measurement, complex measurement and repeated process, this invention proposes to polarize the incident light in a fixed azimuthal angle then illuminate the polarized light onto the target surface, analyze the surface polarized characteristics light in a fixed azimuthal angle, and obtain the light intensity and phase information corresponding to the target surface, then based on the relationship between the characteristics information detected by electromagnetic wave and the light intensity information, to obtain the characteristics information of the target surface.
    Type: Application
    Filed: September 3, 2009
    Publication date: July 21, 2011
    Applicant: RAINTREE SCIENTIFIC INSTRUMENTS (SHANGHAI) CORPORATION
    Inventors: Jiang-tao Dang, Ningning Pan, Haijun Gao
  • Patent number: 7886422
    Abstract: A method is provided for reclaiming a suspension from a disk drive head gimbal assembly (HGA). An ultrasonic probe is applied to the HGA's read/write head slider on a side opposite that of its solder balls. Ultrasonic oscillations are transmitted through the ceramic slider to the side with the solder balls. The oscillations break the brittle intermetallic compound of the slider balls and free the slider. The ultrasonic energy also weakens the epoxy adhesive between the slider and suspension. The method can be used with heat to further weaken the solder balls and adhesive.
    Type: Grant
    Filed: August 5, 2008
    Date of Patent: February 15, 2011
    Assignee: Magnecomp Corporation
    Inventors: Haiming Zhou, Haijun Gao, Fei He
  • Patent number: 7262037
    Abstract: This invention relates to a method for the production of D-(?)-3-hydroxybutyric acid, comprising the step of culturing a recombinant strain containing genes phbA, phbB, ptb and buk by fermentation. Preferably, the recombinant strain is a strain of E. coli. The method of the invention is simple, avoiding the technique of degrading polymer to produce D-(?)-3-hydroxybutyric acid. The present method also provides improved efficiency, lowers the complicated requirement for facilities as used in traditional chemical synthesis, simplifies the complicated technique flow, and omits the complicated chiral separation step. Therefore, the present method greatly reduces the costs associated with D-(?)-3-hydroxybutyric acid production. Also, with this invention, the problems such as environmental pollution of chemical synthesis and chiral separation are overcome.
    Type: Grant
    Filed: January 6, 2003
    Date of Patent: August 28, 2007
    Inventors: Guoqiang Chen, Jinchun Chen, Haijun Gao
  • Publication number: 20030203459
    Abstract: This invention relates to a method for the production of D-(−)-3-hydroxybutyric acid, comprising the step of culturing a recombinant strain containing genes phbA, phbB, ptb and buk by fermentation. Preferably, the recombinant strain is a strain of E. coli. The method of the invention is simple, avoiding the technique of degrading polymer to produce D-(−)-3-hydroxybutyric acid. The present method also provides improved efficiency, lowers the complicated requirement for facilities as used in traditional chemical synthesis, simplifies the complicated technique flow, and omits the complicated chiral separation step. Therefore, the present method greatly reduces the costs associated with D-(−)-3-hydroxybutyric acid production. Also, with this invention, the problems such as environmental pollution of chemical synthesis and chiral separation are overcome.
    Type: Application
    Filed: January 6, 2003
    Publication date: October 30, 2003
    Inventors: Guoqiang Chen, Jinchun Chen, Haijun Gao