Patents by Inventor Hua Mo
Hua Mo 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: 11984797Abstract: The present disclosure provides an adapter circuit including a bus capacitor, a PMOS power transistor, and a sampling control module; a positive terminal of the bus capacitor is connected to a DC bus voltage, and a negative terminal of the bus capacitor is connected to a drain of the PMOS power transistor; a gate of the PMOS power transistor is connected to a drive signal, and a source of the PMOS power transistor is grounded; the sampling control module is used to obtain the drive signal by detecting an AC mains input voltage and a power-down voltage when the bus discharges, so as to turn off the PMOS power transistor after the AC mains input voltage reaches a peak value, and turn on the PMOS power transistor after the power-down voltage reaches a set voltage; the drive signal includes a PMOS Turn-on signal and a PMOS Turn-off signal.Type: GrantFiled: July 5, 2023Date of Patent: May 14, 2024Assignee: ZHEJIANG UNIVERSITYInventors: Faxin Yu, Yihe Wang, Xiaofeng Lv, Hua Chen, Jiongjiong Mo, Zhiyu Wang
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Patent number: 11974879Abstract: Disclosed is a three dimensional mechanical ultrasound probe, which includes a transducer, a driving motor and a transmission mechanism configured to drive the transducer to reciprocatingly oscillate within a predetermined angle. The transmission mechanism includes a transducer base fixed and connected with the transducer, a face gear arranged on the transducer base, and a cylindrical gear meshed with the face gear. A rotating shaft of the face gear is positioned on the transducer base, and the face gear drives the transducer base to reciprocatingly oscillate. A transmission shaft is arranged on the axis of the cylindrical gear, and the transmission shaft is connected with the driving motor. The three dimensional mechanical ultrasound probe provided by the present application aims at simplifying the internal structure of the three dimensional mechanical ultrasound probe, reducing the internal installation complexity and improving motion stability.Type: GrantFiled: August 15, 2019Date of Patent: May 7, 2024Assignee: EDAN INSTRUMENTS, INC.Inventors: Hua Luo, Jianhua Mo, Bo Ouyang, Dan Zhou
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Publication number: 20240076985Abstract: For the problem of difficult roof anchor withdrawal at the end of a working face, a static crushing directional anchor withdrawal method at the end of a large-mining-height working face is provided. The method includes the following steps: designing key parameters of boreholes for static crushing, including a borehole position, a spacing between boreholes, a borehole depth, and a borehole diameter at the end of a working face; then determining parameters of a static crushing agent grouting technology device for the construction of a static crushing process; and carrying out an anchor withdrawal operation at the end.Type: ApplicationFiled: May 23, 2023Publication date: March 7, 2024Inventors: Xuandong LI, Fuqi WANG, Zhixiang LI, Jun WU, Chao GAO, Bin TIAN, Jiangning WANG, Yuanda REN, Dongdong WANG, Longfei WANG, Hua ZHANG, Jianhua CHEN, Zhenghu MO, Xiaogang LI
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Patent number: 10152963Abstract: Rather than using a coaxial cable, a twisted pair of wires is provided for each element-to-beamformer connection. Differential mode signals are transmitted between the transducer element and the respective channel. A multi-layer element is used for operation with the differential mode signals. In catheters or other probes, coaxial cables are not used. Using differential mode signals over twisted pairs allows reduction or rejection of common mode cross-talk and/or interference.Type: GrantFiled: June 22, 2016Date of Patent: December 11, 2018Assignee: Siemens Medical Solutions USA, Inc.Inventor: Jian-Hua Mo
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Patent number: 10011542Abstract: At least one pH-sensitive component may contact a refinery stream for measuring the pH of the refinery stream. A light from a light source may be emitted onto the pH-sensitive component, and a detector may detect a first luminescence or color change of chromophore measurement radiated from the pH-sensitive component. A first pH of the refinery stream may be determined from the first luminescence or color change of chromophore measurement.Type: GrantFiled: April 21, 2016Date of Patent: July 3, 2018Assignee: Baker Hughes, a GE company, LLCInventors: Hua Mo, Roger D. Metzler
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Patent number: 9944577Abstract: The polymerization of monomers may be at least partially reduced or inhibited by introducing an effective amount of an additive. The additive may be or include at least one hydroquinone, such as but not limited to, 2,6-di-tert-butyl hydroquinone, 2,5 di-tert-butyl hydroquinone, 3,5 di-tert-butyl hydroquinone, 3,5 di-methyl hydroquinone, 3,6 di-tert-butyl hydroquinone, and combinations thereof. The polymerizable monomers may be or include, but are not limited to styrene, butadiene, isoprene, acrylic acid, acrylonitrile, vinyl acetate, and combinations thereof.Type: GrantFiled: July 22, 2014Date of Patent: April 17, 2018Assignee: Baker Hughes, a GE company, LLCInventors: Hua Mo, Roger D. Metzler
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Patent number: 9884795Abstract: The polymerization of monomers may be at least partially reduced or inhibited by introducing an effective amount of an additive. The additive may be or include a first compound: where: R1 and R2 may be or include an alkyl group, an aryl group, an alkyl group having a heteroatom, an aryl group having a heteroatom, and combinations thereof. The hetero atom may be or include sulfur, nitrogen and/or oxygen. R1 may be the same or different from R2. The polymerizable monomers may be or include, but are not limited to styrene, butadiene, isoprene, acrylic acid, acrylonitrile, vinyl acetate, and combinations thereof.Type: GrantFiled: February 20, 2017Date of Patent: February 6, 2018Assignee: Baker Hughes, a GE company, LLCInventors: Hua Mo, Roger D. Metzler
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Patent number: 9687779Abstract: Sodium borohydride (NaBH4) may be used to removing carbonyl sulfide (COS) from a process stream containing it. The method involves contacting the process stream with an amount of effective of NaBH4 to react with the COS to form reaction products that may be removed by a process of washing away the reaction product by an aqueous basic compound and/or the reaction product having a higher boiling point than carbonyl sulfide which permits trapping the reaction product, such as in a caustic tower.Type: GrantFiled: July 30, 2015Date of Patent: June 27, 2017Assignee: Baker Hughes IncorporatedInventors: Hua Mo, Roger D. Metzler
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Publication number: 20170158584Abstract: The polymerization of monomers may be at least partially reduced or inhibited by introducing an effective amount of an additive. The additive may be or include a first compound: where: R1 and R2 may be or include an alkyl group, an aryl group, an alkyl group having a heteroatom, an aryl group having a heteroatom, and combinations thereof. The hetero atom may be or include sulfur, nitrogen and/or oxygen. R1 may be the same or different from R2. The polymerizable monomers may be or include, but are not limited to styrene, butadiene, isoprene, acrylic acid, acrylonitrile, vinyl acetate, and combinations thereof.Type: ApplicationFiled: February 20, 2017Publication date: June 8, 2017Applicant: BAKER HUGHES INCORPORATEDInventors: Hua Mo, Roger D. Metzler
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Publication number: 20170158621Abstract: In one embodiment, the present invention provides a method, comprising: a. adding an effective amount of at least one compound selected from the group consisting of a substituted catechol, nitroxide free radicals, a compound of Formula 2, 4-hydroxy-2,2,6,6-tetramethylpiperidine-1-oxyl, phenol, hydroxylamine, and phenylene diamine to a solution of a monomer selected from the group consisting of acrylonitrile, acrylic acid, vinylacetate, acrylates and acrolein; b. placing the monomer solution containing the at least one compound in a pressure vessel, pressurizing the pressure vessel and removing oxygen from the pressure vessel; and c. heating the monomer solution containing the at least one compound, wherein the at least one compound inhibits fouling by preventing polymerization of the monomer.Type: ApplicationFiled: December 1, 2016Publication date: June 8, 2017Applicant: BAKER HUGHES INCORPORATEDInventors: HUA MO, ROGER D. METZLER, HSIN HUANG
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Patent number: 9611336Abstract: The polymerization of monomers may be at least partially reduced or inhibited by introducing an effective amount of an additive. The additive may be or include a first compound: where: R1 and R2 may be or include an alkyl group, an aryl group, an alkyl group having a heteroatom, an aryl group having a heteroatom, and combinations thereof. The hetero atom may be or include sulfur, nitrogen and/or oxygen. R1 may be the same or different from R2. The polymerizable monomers may be or include, but are not limited to styrene, butadiene, isoprene, acrylic acid, acrylonitrile, vinyl acetate, and combinations thereof.Type: GrantFiled: October 25, 2012Date of Patent: April 4, 2017Assignee: Baker Hughes IncorporatedInventors: Hua Mo, Roger D. Metzler
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Publication number: 20170028346Abstract: Sodium borohydride (NaBH4) may be used to removing carbonyl sulfide (COS) from a process stream containing it. The method involves contacting the process stream with an amount of effective of NaBH4 to react with the COS to form reaction products that may be removed by a process of washing away the reaction product by an aqueous basic compound and/or the reaction product having a higher boiling point than carbonyl sulfide which permits trapping the reaction product, such as in a caustic tower.Type: ApplicationFiled: July 30, 2015Publication date: February 2, 2017Applicant: BAKER HUGHES INCORPORATEDInventors: HUA MO, ROGER D. METZLER
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Publication number: 20160311734Abstract: At least one pH-sensitive component may contact a refinery stream for measuring the pH of the refinery stream. A light from a light source may be emitted onto the pH-sensitive component, and a detector may detect a first luminescence or color change of chromophore measurement radiated from the pH-sensitive component. A first pH of the refinery stream may be determined from the first luminescence or color change of chromophore measurement.Type: ApplicationFiled: April 21, 2016Publication date: October 27, 2016Applicant: BAKER HUGHES INCORPORATEDInventors: Hua Mo, Roger D. Metzler
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Publication number: 20160307558Abstract: Rather than using a coaxial cable, a twisted pair of wires is provided for each element-to-beamformer connection. Differential mode signals are transmitted between the transducer element and the respective channel. A multi-layer element is used for operation with the differential mode signals. In catheters or other probes, coaxial cables are not used. Using differential mode signals over twisted pairs allows reduction or rejection of common mode cross-talk and/or interference.Type: ApplicationFiled: June 22, 2016Publication date: October 20, 2016Inventor: Jian-Hua Mo
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Publication number: 20160289088Abstract: A concentration of at least one oxygen species may be maintained within a pre-determined range in a water-based stream by obtaining at least one measurement as a direct current (DC) output with at least one probe within the water-based stream. The measurement(s) may correlate to a measured concentration of the oxygen specie(s) within the water-based stream. The measured concentration of the oxygen specie(s) within the water-based stream may be altered when the measured concentration is outside the pre-determined range.Type: ApplicationFiled: March 29, 2016Publication date: October 6, 2016Applicant: BAKER HUGHES INCORPORATEDInventors: Hua Mo, Roger D. Metzler, Simon Cornelius
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Publication number: 20160222305Abstract: Methods and fluid compositions are described for decreasing or inhibiting foulants within an ethylene plant at a particular location, such as a caustic tower in a non-limiting embodiment. An effective amount of at least one substituted hydroxylamine and an effective amount of at least one aldol inhibitor may be introduced into a fluid feed of the ethylene plant. The aldol inhibitor(s) may be or include a substituted hydroxylimine, a borohydride, and combinations thereof.Type: ApplicationFiled: January 30, 2015Publication date: August 4, 2016Applicant: BAKER HUGHES INCORPORATEDInventors: Hua Mo, Roger D. Metzler, Jonathan R. Bui
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Patent number: 9375200Abstract: Rather than using a coaxial cable, a twisted pair of wires is provided for each element-to-beamformer connection. Differential mode signals are transmitted between the transducer element and the respective channel. A multi-layer element is used for operation with the differential mode signals. In catheters or other probes, coaxial cables are not used. Using differential mode signals over twisted pairs allows reduction or rejection of common mode cross-talk and/or interference.Type: GrantFiled: March 12, 2013Date of Patent: June 28, 2016Assignee: Siemens Medical Solutions USA, Inc.Inventor: Jian-Hua Mo
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Publication number: 20150072436Abstract: At least one probe may be introduced into a hydrocarbon stream for detecting dissolved oxygen species therein. The hydrocarbon stream may have or include at least one probing additive where the probing additive(s) may be added to the hydrocarbon stream, coated onto the probe(s), or both. The probe(s) may detect at least one luminescent measurement from the hydrocarbon stream, and the luminescent measurement(s) may determine whether dissolved oxygen species are present within the hydrocarbon stream.Type: ApplicationFiled: September 9, 2013Publication date: March 12, 2015Applicant: Baker Hughes IncorporatedInventors: Hua Mo, Roger D. Metzler
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Patent number: 8946972Abstract: A multi-layer transducer operates with only one system channel per element. Passive switching connects the layers differently for transmit than for receive operation, such as connecting two layers in parallel for transmit and in series for receive. Any passive switching may be used, such as current and voltage limiting circuits. Tuning may be passively switched. Different tuning circuits are passively switched as a function of voltage level between transmit and receive operations.Type: GrantFiled: August 16, 2006Date of Patent: February 3, 2015Assignee: Siemens Medical Solutions USA, Inc.Inventors: John Douglas Marshall, Jian-Hua Mo, Kutay F. Ustuner
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Patent number: 8922554Abstract: An irregular ultrasound sampling grid is reconstructed to a three-dimensional grid for imaging. Volume data acquired with a helix transducer includes a fractional offset of data spaced along one dimension, resulting in the irregular ultrasound sampling grid. To determine a voxel value for a grid point on a uniform grid, two adjacent planes are identified. The sample locations in the two planes are not aligned, being on the irregular ultrasound sampling grid. Hardware acceleration devices, such as a graphics processing unit, perform bilinear interpolation in each of the planes. The data of each plane is interpolated to the proper global azimuth-range coordinate corresponding with the grid point. The bilinearly interpolated values from each plane are then linearly interpolated to the grid point.Type: GrantFiled: March 18, 2011Date of Patent: December 30, 2014Assignee: Siemens Medical Solutions USA, Inc.Inventors: Mervin Smith-Casem, Patric Ljung, Guillaume Stordeur, Jian-Hua Mo, Bruce McDermott