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).
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Patent number: 11975444Abstract: 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: GrantFiled: May 5, 2023Date of Patent: May 7, 2024Assignee: Ohio State Innovation FoundationInventors: Haijun Su, Yuan Gao
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Publication number: 20240073287Abstract: 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: ApplicationFiled: August 31, 2023Publication date: February 29, 2024Inventors: Ming LEI, Haijun XU, Zhipeng GAO, Da LI, Shaohua LI
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Publication number: 20220020648Abstract: 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: ApplicationFiled: November 1, 2019Publication date: January 20, 2022Inventors: Bin LI, Haijun GAO
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Patent number: 10309834Abstract: 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: GrantFiled: April 14, 2016Date of Patent: June 4, 2019Assignee: Raintree Scientific Instruments (Shanghai) CorporationInventors: Fengjiao Zhong, Haijun Gao, Jiangtao Dang
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Publication number: 20180283951Abstract: 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: ApplicationFiled: April 14, 2016Publication date: October 4, 2018Inventors: Fengjiao ZHONG, Haijun GAO, Jiangtao DANG
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Patent number: 9200998Abstract: 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: GrantFiled: September 3, 2009Date of Patent: December 1, 2015Assignee: RAINTREE SCIENTIFIC INSTRUMENTS (SHANGHAI) CORPORATIONInventors: Jiang-tao Dang, Ningning Pan, Haijun Gao
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Publication number: 20120038920Abstract: 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: ApplicationFiled: September 3, 2009Publication date: February 16, 2012Applicant: Raintree Scientific Instruments (Shanghai) CorporationInventors: Jiang-tao DANG, Ningning PAN, Haijun GAO
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Publication number: 20110176133Abstract: 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: ApplicationFiled: September 3, 2009Publication date: July 21, 2011Applicant: RAINTREE SCIENTIFIC INSTRUMENTS (SHANGHAI) CORPORATIONInventors: Jiang-tao Dang, Ningning Pan, Haijun Gao
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Patent number: 7886422Abstract: 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: GrantFiled: August 5, 2008Date of Patent: February 15, 2011Assignee: Magnecomp CorporationInventors: Haiming Zhou, Haijun Gao, Fei He
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Patent number: 7262037Abstract: 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: GrantFiled: January 6, 2003Date of Patent: August 28, 2007Inventors: Guoqiang Chen, Jinchun Chen, Haijun Gao
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Publication number: 20030203459Abstract: 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: ApplicationFiled: January 6, 2003Publication date: October 30, 2003Inventors: Guoqiang Chen, Jinchun Chen, Haijun Gao