Patents by Inventor Hua Zhang

Hua Zhang 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: 9899910
    Abstract: A bridgeless PFC boost converter has either a single switching cell or two identical switching cells configured to operate 180 degrees out of phase. A switching cell includes first and second transistor switches coupled to opposing ends of an input AC voltage source, and first and second rectifying diodes, one rectifying diode coupled in series to each of the two transistor switches. A boost inductor is coupled to a junction node between each transistor switch and rectifying diode series. Either a third rectifying diode or a third transistor switch is coupled to a junction node between the input AC voltage source and the first transistor switch. Either a fourth rectifying diode or a fourth transistor switch is coupled to a junction node between the input AC voltage source and the second transistor switch. The rectifying diodes are coupled an output capacitor. Two switching cells can be interleaved.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: February 20, 2018
    Inventors: Hua Min Xu, Wei Li, Hui Zhang, Xing Hao Zhang, Yi Zhang
  • Publication number: 20180044337
    Abstract: The present invention provides methods for the preparation of substituted heterocycle fused gamma-carbolines, intermediates useful in producing them and methods for producing such intermediates and such heterocycl fused gamma-carbolines.
    Type: Application
    Filed: July 26, 2017
    Publication date: February 15, 2018
    Inventors: John Charles TOMESCH, Peng LI, Wei YAO, Qiang ZHANG, James David BEARD, Andrew S. THOMPSON, Hua CHENG, Lawrence P. WENNOGLE
  • Publication number: 20180044240
    Abstract: The present invention relates to modification of hydratable cement and cementitious materials, such as mortar cement and masonry or ready-mix concrete using ketone alcohol oil waste (“KAOW”) material, obtained as an alkali-soluble liquor waste byproduct at a certain stage in the commercial production of cyclohexanol and cyclohexanone. Preferred applications for KAOW are in chemical admixture formulations whereby KAOW is used to substitute for a portion of a cement dispersant such as sodium lignosulfonate, sodium gluconate, or other conventional dispersant. Another preferred use is in mortar cement and masonry concrete units such as blocks, pavers, curbstones, and other concrete masonry units wherein air void systems advantageously foster freeze-thaw durability.
    Type: Application
    Filed: February 27, 2015
    Publication date: February 15, 2018
    Applicant: GCP Applied Technologies Inc.
    Inventors: Shuqiang ZHANG, Hua ZHONG, Felek JACHIMOWICZ, Byong-wa CHUN, Yin-Zar HNIN
  • Publication number: 20180048478
    Abstract: A novel method for performing replication of messages in a network that bridges one or more physical networks to an overlay logical network is provided. A physical gateway provides bridging between network nodes of a physical network and virtual machines in the overlay logical network by serving as an endpoint of the overlay logical network. The physical gateway does not replicate messages from the bridged physical network to destination endpoints in the overlay logical network directly, but instead tunnels the message-to-be-replicated to a designated tunnel endpoint in the overlay logical network. The designated tunnel endpoint in turn replicates the message that was tunneled to it to other endpoints in the overlay logical network.
    Type: Application
    Filed: October 5, 2017
    Publication date: February 15, 2018
    Inventors: Alexander Tessmer, Mukesh Hira, Rajiv Krishnamurthy, Ram Dular Singh, Xuan Zhang, Hua Wang
  • Patent number: 9893625
    Abstract: Disclosed herein is a DC/DC power supply apparatus, which includes a plurality of power boards, a control board and a main board. The plurality of power boards are coupled in parallel with one another, and each power board includes a carrier circuit board and a power device disposed on the carrier circuit board. The control board includes a feedback control circuit and a PWM generator circuit; the feedback control circuit is configured to receive one or more feedback signals from the power boards; the PWM generator circuit outputs a PWM control signal to the power boards based on the feedback signal. The main board is electrically coupled to the power boards and the control board.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: February 13, 2018
    Inventors: Wen-Hua Li, Sheng-Li Lu, Zhong-Wang Yang, Jin-Ying Zhang, Qiong Zhang
  • Patent number: 9890713
    Abstract: A silencer apparatus for a gas turbine inlet system ducting is disclosed. The inlet ducting contains a main silencer and a pre-silencer, and Inlet Bleed Heat (“IBH”) located between the silencers. The pre-silencer decreases the noise level from the turbine compressor and makes the air flow/temperature profiles more uniform. The main silencer reduces noise from the IBH and the remaining noise from the compressor to an appropriate level. The main silencer is comprised of a first plurality of sound-absorbing splitters disposed along the gas flow direction in the gas turbine inlet ducting. The pre-silencer is comprised of a second plurality of sound-absorbing splitters disposed along the gas flow direction in the gas turbine inlet ducting, but staggered with respect to the first plurality of splitters to thereby block a direct line of travel for noise acoustical waves from the compressor travelling opposite the gas flow direction in the inlet ducting.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: February 13, 2018
    Assignee: General Electric Company
    Inventors: Hua Zhang, Dinesh Venugopal Setty, Laxmikant Merchant, Valery Ivanovich Ponyavin
  • Patent number: 9893845
    Abstract: A user equipment (UE), including: a receiver configured to receive downlink data transmitted by a base station via downlink component carriers including a secondary component carrier; and a circuit configured to select uplink resources from available resources for transmitting response signals obtained by decoding the received downlink data and select corresponding modulation symbols by using a mapping relation between a state of the response signals and the selected resources and the modulation symbols according to the state of the response signals; wherein the available resources include resources corresponding to a primary component carrier and resources allocated to the secondary component carrier by the base station; and, wherein the mapping relation includes cases in which the resource corresponding to the response signal that is NACK/DTX is not selected; where NACK represents Negative Acknowledgement, and DTX represents Discontinuous Transmission; and when the response signals are all DTX, no resource
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: February 13, 2018
    Inventors: Yuantao Zhang, Yi Zhang, Yuanrong Lan, Hua Zhou, Jianming Wu
  • Publication number: 20180042140
    Abstract: A server heat dissipation system is provided, comprising a liquid cooling server cabinet comprising a cabinet body and multiple liquid cooling servers provided inside the cabinet body, wherein it is provided with a liquid cooling device to perform direct liquid cooling to the liquid cooling servers, and with an auxiliary heat dissipation device to perform auxiliary heat dissipation to the liquid cooling servers. The present invention provides high density cooling, high heat exchange efficiency, no local overheating, small space occupied, high reliability, low noise, and long life.
    Type: Application
    Filed: May 5, 2015
    Publication date: February 8, 2018
    Inventors: Zhanhua PAN, Minhua LI, Hua CHEN, Chunhui XIE, Ti OUYANG, Xuewei ZHANG, Yuqun QIU
  • Patent number: 9887679
    Abstract: A power amplifier gain switching circuit includes: a gain controller configured to receive an external input signal, output a first input signal, receive an external drive signal, and output a control signal based on the drive signal; an amplifier including: a bias input terminal configured to receive an external bias voltage; a signal input terminal configured to receive the first input signal; a control terminal configured to receive the control signal; and an output terminal configured to output an output signal with a gain; wherein the amplifier is configured to switch a gain factor of the output signal based on the control signal.
    Type: Grant
    Filed: January 29, 2017
    Date of Patent: February 6, 2018
    Inventors: Qian Zhao, Liyang Zhang, Hua Long, Zhenjuan Cheng, Dongjie Tang
  • Publication number: 20180030049
    Abstract: Disclosed is a preparation method for praziquantel and intermediates thereof. The method includes: obtaining a target product praziquantel by using ?-phenethylamine as an initial raw material through a condensation reaction with chloroacetyl chloride, a substitution reaction with ethanolamine, and an acylation reaction with cyclohexanecarbonyl chloride, followed by an oxidation reaction and cyclization reaction. Also disclosed are two key intermediates, namely, a compound of formula IV and a compound of formula V for preparing praziquantel. The preparation method is reasonable and simple in its technological design, uses moderate reaction conditions, and is economical and environmentally friendly. Additionally, the raw materials are inexpensive and easy to obtain, the key intermediates are easy to prepare, and the total reaction yield and purity of the obtained target compound praziquantel is high, so that industrialized mass production is easy to achieve.
    Type: Application
    Filed: February 12, 2015
    Publication date: February 1, 2018
    Applicants: Zhejiang Hisun Pharmaceutical Co., Ltd., Shanghai Institute of Pharmaceutical Industry
    Inventors: Fuli ZHANG, Zhezhou YANG, Rusheng BAO, Weiwei XU, Hua BAI
  • Publication number: 20180023398
    Abstract: A blade includes an airfoil body defined by a concave pressure side outer wall and a convex suction side outer wall that connect along leading and trailing edges and, therebetween, form a radially extending chamber for receiving the flow of a coolant. The airfoil body has an inner surface facing the radially extending chamber and an outer surface, a first corrugated surface on a portion of the outer surface, and a second corrugated surface on the inner surface paralleling the first corrugated surface. The corrugated surface on the outer surface of the airfoil provides wake mixing. The blade may also include an integrally formed impingement cooling structure having a third corrugated surface parallel to the second corrugated surface, which is made possible through additive manufacturing. The impingement cooling structure so formed provides improved cooling of the blade.
    Type: Application
    Filed: July 22, 2016
    Publication date: January 25, 2018
    Inventors: Jeffrey Clarence Jones, Thomas James Brunt, Jason Anton Byers, Adam John Fredmonski, Hua Zhang
  • Publication number: 20180011059
    Abstract: Aspects of the disclosure include systems, methods, and program products for evaluating the condition of a component using an acoustic sensor embedded within a lighting device. A system according to the present disclosure can include a first lighting device configured to illuminate an area of an industrial plant; a first acoustic sensor embedded within the first lighting device and configured to detect an acoustic signature of a component in the industrial plant; a computing device communicatively connected to the first acoustic sensor and configured to evaluate a condition of the component in the industrial plant based on the acoustic signature.
    Type: Application
    Filed: July 11, 2016
    Publication date: January 11, 2018
    Inventors: David Terry Trayhan, JR., Hua Zhang
  • Publication number: 20180000934
    Abstract: Disclosed is a stable pharmaceutical solution formulation of a GLP-1R antibody fusion protein, comprising a therapeutically effective amount of the GLP-1R antibody fusion protein, an amino acid, a surfactant and a buffer system. The final concentration of the amino acid is 1-500 mM, the final concentration of the surfactant is 0.01%-0.5%, and the pH value of the stable solution formulation is from 5.0 to 8.0. The stable solution formulation of the present invention can be used in the treatment of diabetes, obesity and conditions associated therewith.
    Type: Application
    Filed: February 3, 2016
    Publication date: January 4, 2018
    Inventors: Cheng Zhang, Hua Zhang, Kesuo Fan, Yong Guo, Shuqian Jing
  • Patent number: 9859895
    Abstract: The present invention teaches a level shift device and a related method. The level shift device contains a first input terminal, a second input terminal, a number of output terminals, and a pulse generation circuit. The first input terminal is for receiving a first pulse input signal. The second input terminal is for receiving a second pulse input signal. The pulse generation circuit cyclically produces pulse output signals, one on each output terminal, according to the first and second pulse input signals. The level shift device further contains a third input terminal for receiving a third pulse input signal. The pulse generation circuit controls the number of pulse output signals produced within each cycle according to third pulse input signal. The present invention is able to produce various numbers of pulse output signals, which is flexible for different applications without investing a new design.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: January 2, 2018
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventor: Hua Zhang
  • Patent number: 9856768
    Abstract: A turbomachine system according to an embodiment includes: a gas turbine system including a compressor component, a combustor component, and a turbine component; a mixing area for receiving an exhaust gas stream produced by the gas turbine system; a fluid injection system for injecting a fluid into the mixing area to reduce a temperature of the exhaust gas stream; and an exhaust processing system for processing the reduced temperature exhaust gas stream.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: January 2, 2018
    Assignee: General Electric Company
    Inventors: Lewis Berkley Davis, Jr., Gilbert Otto Kraemer, Parag Prakash Kulkarni, Hua Zhang
  • Patent number: 9853393
    Abstract: An electrical connector comprises: an insulative housing and a plurality of terminals retained in the insulative housing. The insulative housing has a base portion and a mating tongue. The mating tongue comprises a stepped portion extending from the base portion and a tongue portion extending from the stepped portion. The insulative housing defines an outer periphery. The stepped portion defines a front face. The base portion defines a rear face. The terminal defines a connecting portion buried in the base portion and the stepped portion, a contacting portion extending from the connecting portion. The insulative housing defines a sealing member filling in the periphery of the connecting portion. The sealing member not extends out the front face of the stepped portion, the rear face of the base portion and the out periphery of the insulative housing. It is favorable for improving the waterproof effect of the electric connector.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: December 26, 2017
    Inventors: Bin Guo, Xiao-Bo Du, Chun-Ming Yu, Guo-Hua Zhang
  • Publication number: 20170363016
    Abstract: The invention may be embodied a valve for a combustor of a gas turbine, the valve including: a housing including a fluid inlet and fluid outlets; an actuator within the housing and movable between an open position and a closed position; a fluid path through the housing between the fluid inlet and the fluid outlets, wherein the fluid path is blocked while the actuator is in the closed positions such that fluid may not flow from the inlet to the outlets and fluid may not flow between the outlets, and wherein one of the fluid outlets is fluidly connected to a first combustion can of the combustor, and another of the fluid outlets is fluidly connected to a second combustion can of the combustor.
    Type: Application
    Filed: June 16, 2016
    Publication date: December 21, 2017
    Inventors: Kenneth Eugene SELFRIDGE, Hua ZHANG
  • Publication number: 20170358491
    Abstract: A semiconductor transistor device includes a substrate having an active area and a trench isolation region surrounding the active area, a gate oxide layer, a gate, a spacer on a sidewall of the gate, a doping region on one side of the gate, an insulating cap layer covering the gate, the spacer and the doping region, and a redistributed contact layer (RCL) on the insulating cap layer. The RCL extends from the active area to the trench isolation region. A contact plug is disposed above the trench isolation region and is electrically connected to the gate or the doping region through the RCL.
    Type: Application
    Filed: July 21, 2017
    Publication date: December 14, 2017
    Inventors: ZHIBIAO ZHOU, Ding-Lung Chen, Xing Hua Zhang
  • Publication number: 20170356319
    Abstract: A heat pipe has a first portion positioned within an exhaust path of a gas turbine exhaust processing system and a second portion positioned in a heat exchange relationship with a flow path of a heat exchange fluid. The flow path of the heat exchange fluid includes an ammonia evaporator configured to evaporate ammonia received from an ammonia source. The heat pipe is configured to transfer thermal energy from exhaust gas in the exhaust path to the heat exchange fluid to enable the heat exchange fluid to vaporize the ammonia while cooling the exhaust gas to enable the gas turbine exhaust processing system to more effectively process the exhaust gas.
    Type: Application
    Filed: June 9, 2016
    Publication date: December 14, 2017
    Inventor: Hua Zhang
  • Patent number: 9843158
    Abstract: The present application provides an optical module comprising: a golden finger, a MAC chip, a switch circuit, a laser driver, and a laser. A first output terminal of the MAC chip is connected to a first input terminal of the laser driver for inputting burst controlling signal thereto; a second output terminal of the MAC chip is connected to a first input terminal of the switch circuit for inputting cut-off controlling signal thereto; a cut-off controlling pin of the golden finger is connected to a second input terminal of the switch circuit for inputting cut-off controlling signal thereto; and an output terminal of the switch circuit is connected to a second input terminal of the laser driver. The switch circuit is used to connect the first or the second input terminal of the switch circuit with the output terminal. The cut-off controlling signal controls the switch-off of the laser.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: December 12, 2017
    Inventors: Li Wang, Long Zheng, Hua Zhang