Patents by Inventor Haiying Li

Haiying Li 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: 11149055
    Abstract: The present invention relates to a crystal form of a compound of formula (I) and an application thereof in preparing a drug for treating an ophthalmic disease.
    Type: Grant
    Filed: July 25, 2019
    Date of Patent: October 19, 2021
    Assignee: GUANGZHOU OCUSUN OPHTHALMIC BIOTECHNOLOGY CO., LTD.
    Inventors: Yizhi Liu, Yandong Wang, Xiaolin Li, Zhi Luo, Haiying He, Jian Li, Shuhui Chen
  • Patent number: 11146071
    Abstract: A coordinated control method for series voltage source converter valve groups comprises: allocating a total direct-current voltage reference value or a total active power reference value at the end where a direct-current electrode series voltage source converter valve group is located according to the total number of voltage source converter valve groups in series; for a direct-current voltage control end, controlling the direct-current voltage of each valve group according to the assigned direct-current voltage reference value for each valve group; for an active power control end, controlling the active power of each valve group according to the assigned active power reference value for each valve group and based on adding the active power compensation amount of the valve group which has voltage equalization effects on the valve group. Correspondingly, also providing a coordinated control device for series voltage source converter valve groups.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: October 12, 2021
    Assignees: NR ELECTRIC CO., LTD., NR ENGINEERING CO., LTD.
    Inventors: Jiang Lu, Yu Lu, Yunlong Dong, Yongping Wang, Jie Tian, Haiying Li, Zhaoqing Hu, Nannan Wang, Ke Wang, Jiudong Ding
  • Publication number: 20210301065
    Abstract: Polyurethane foams are made by curing a reaction mixture that contains an aromatic polyisocyanate, at least one isocyanate-reactive material having an average functionality of at least 2 and an equivalent weight of at least 200 per isocyanate-reactive group, at least one blowing agent, at least one surfactant and at least one catalyst, a polyethyleneamine mixture having a number average molecular weight of 175 to 450 and an alkali metal, phosphonium or ammonium sulfite. Foams so produced emit low levels of formaldehyde, acetaldehyde, acrolein and propionaldehyde.
    Type: Application
    Filed: August 2, 2018
    Publication date: September 30, 2021
    Inventors: Zhengming Tang, Jian Zou, Shaoguang Feng, Yuji Sasaki, Hongliang Chen, Haiying Li, Degang Zhang, Ping Zhang
  • Patent number: 11118175
    Abstract: The present invention provides methods, compositions and kits for using a transposase and a transposon end for generating extensive fragmentation and 5?-tagging of double-stranded target DNA in vitro, then using a DNA polymerase for generating 5?- and 3?-tagged single-stranded DNA fragments without performing a PCR amplification reaction, wherein the first tag on the 5?-ends exhibits the sequence of the transferred transposon end and optionally, an additional arbitrary sequence, and the second tag on the 3?-ends exhibits a different sequence from the sequence exhibited by the first tag. The method is useful for generating 5?- and 3?-tagged DNA fragments for use in a variety of processes, including processes for metagenomic analysis of DNA in environmental samples, copy number variation (CNV) analysis of DNA, and comparative genomic sequencing (CGS), including massively parallel DNA sequencing so-called “next generation sequencing”).
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: September 14, 2021
    Assignee: Illumina, Inc.
    Inventors: Haiying Li Grunenwald, Nicholas Caruccio, Jerome Jendrisak, Gary Dahl
  • Publication number: 20210265835
    Abstract: A multi-voltage level direct current grid system and a control protection method, the direct current grid system comprising: at least two direct current buses; at least one direct current transformer, one end of which is connected to a first direct current bus while another end is connected to a second direct current bus or a lead-out wire, which may achieve direct current voltage conversion; and at least one lead-out wire current limiter, one end of the lead-out wire current limiter being connected to the second direct current bus while another end is connected to the lead-out wire; the lead-out wire current limiter comprises a first current-limiting unit, and the first current limiting unit comprises a group of direct current switches, as well as a first bypass switch and a first current-limiting resistor unit that are connected in parallel.
    Type: Application
    Filed: April 1, 2019
    Publication date: August 26, 2021
    Inventors: YEYUAN XIE, HAIYING LI, YU WANG, ZHONGFENG ZHANG, DONGMING CAO
  • Publication number: 20210242787
    Abstract: A unidirectional DC voltage conversion device comprises a front end circuit (2), a main power circuit (1), a preceding-stage auxiliary isolation switch (5), and a subsequent-stage auxiliary isolation switch (6). A preceding-stage port of the main power circuit (1) and a subsequent-stage port of the front end circuit (2) form a cascade connection. The preceding-stage auxiliary isolation switch (5) is connected to a negative terminal (8) of a preceding-stage port of the front end circuit (2), and forms, together with a positive terminal (7) of the preceding-stage port of the front end circuit (2), a first input port of the unidirectional DC voltage conversion device.
    Type: Application
    Filed: August 28, 2019
    Publication date: August 5, 2021
    Inventors: Yeyuan XIE, Jie TIAN, Zhongfeng ZHANG, Chen YANG, Haiying LI, Dongming CAO, Yu WANG
  • Publication number: 20210242792
    Abstract: A bipolar bidirectional DC converter comprises at least two valve group series (101, 102) and at least six magnetic elements (103), and said valve group series are divided into a Type-I valve group series (102) and a Type-II valve group series (101) each valve group series (101, 102) comprises a high-voltage DC port, a low-voltage DC port and at least three AC ports, and each AC port is connected to a magnetic element (103); and the other ends of the magnetic elements (103), which are connected to all the AC ports in the same valve group series (101, 102), are connected.
    Type: Application
    Filed: August 15, 2019
    Publication date: August 5, 2021
    Inventors: Chen XIE, Zhongfeng ZHANG, Jie TIAN, Yeyuan XIE, Haiying LI, Yu WANG, Jian GE
  • Publication number: 20210229033
    Abstract: Polyethylenimine coated polymeric beads comprising a polymer that comprises, based on the weight of the polymer, from 25% to 75% by weight of structural units of an acetoacetoxy or acetoacetamide functional monomer, and from 25% to 75% by weight of structural units of a polyvinyl monomer; the polyethylenimine having a number average molecular weight of 300 g/mol or more; the polyethylenimine coated polymeric beads having a specific surface area in the range of from 20 to 400 m2/g; a process of preparing the polyethylenimine coated polymeric beads; a gas filter device comprising the polyethylenimine coated polymeric beads as a filter medium; and a method of removing aldehydes from air containing aldehydes, comprising contacting the air with the polyethylenimine coated polymeric beads.
    Type: Application
    Filed: July 4, 2018
    Publication date: July 29, 2021
    Applicant: Dow Global Technologies LLC
    Inventors: Ji Guang Zhang, Jian Zou, Hongyu Chen, Shaoguang Feng, Wenbin Yao, Haiying Li, Xuemei Zhai
  • Publication number: 20210126462
    Abstract: A coordinated control method for series voltage source converter valve groups comprises: allocating a total direct-current voltage reference value or a total active power reference value at the end where a direct-current electrode series voltage source converter valve group is located according to the total number of voltage source converter valve groups in series; for a direct-current voltage control end, controlling the direct-current voltage of each valve group according to the assigned direct-current voltage reference value for each valve group; for an active power control end, controlling the active power of each valve group according to the assigned active power reference value for each valve group and based on adding the active power compensation amount of the valve group which has voltage equalization effects on the valve group. Correspondingly, also providing a coordinated control device for series voltage source converter valve groups.
    Type: Application
    Filed: November 28, 2018
    Publication date: April 29, 2021
    Applicants: NR ELECTRIC CO., LTD., NR ENGINEERING CO., LTD.
    Inventors: Jiang LU, Yu LU, Yunlong DONG, Yongping WANG, Jie TIAN, Haiying LI, Zhaoqing HU, Nannan WANG, Ke WANG, Jiudong DING
  • Patent number: 10978239
    Abstract: An embedded coil assembly embodiment includes a ferrite ring having an annular axis. The ferrite ring is positioned on a conductive metal surface. A plurality of separate, spaced apart conductive structures extend over the ferrite ring and are attached to the conductive metal surface in a first region of the conductive surface positioned radially outwardly of the annular axis of the ferrite ring and in a second region of the conductive surface positioned radially inwardly of the annular axis of the ferrite ring. An encapsulation layer covers, the ferrite ring and at least a portion of the plurality of conductive structures.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: April 13, 2021
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Haiying Li, Benjamin Michael Sutton, Ming Li
  • Patent number: 10923906
    Abstract: A fault switch configuration and clearing method in a flexible DC converter station, the flexible DC converter station is configured with a grid side switch and a valve side phase-split switch in the converter station. When a fault occurs, a faulty phase and a non-faulty phase are detected and identified by means of differential protection or low voltage overcurrent. An alternating current zero crossing condition is created by means of firstly turn off the non-faulty phase valve side phase-split switch and the grid side switch, thereby cutting off the faulty phase, disconnecting the connection between a power supply and a fault point, and achieving the clearing for faults. The described fault-clearing method is simple and practical, highly reliable, and connection between the fault point and the power supply is quickly and effectively cut; converter station equipment is effectively protected, and further expansion of the fault is avoided.
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: February 16, 2021
    Assignees: NR ELECTRIC CO., LTD., NR ENGINEERING CO., LTD.
    Inventors: Yu Lu, Gang Li, Jie Tian, Nannan Wang, Haiying Li, Chongxue Jiang, Shunke Sui
  • Publication number: 20210036600
    Abstract: A redundant energy acquisition circuit of a power module includes at least one power semiconductor device, a first capacitor, and a first bypass switch. The redundant energy acquisition circuit of the power module includes: a power supply board acquiring energy from the first capacitor, supplying power to a control board, and charging a discharge circuit. A first charging circuit has one end connected to a positive electrode of the first capacitor and another end connected to the discharge circuit, and charges the discharge circuit when the power supply board is not operating normally. The control board controls the discharge circuit to close. The discharge circuit discharges and triggers the first bypass switch to close after the discharge circuit is closed.
    Type: Application
    Filed: January 21, 2019
    Publication date: February 4, 2021
    Inventors: Yeyuan XIE, Haiying LI, Tiangui JIANG, Minglian ZHU, Dongming CAO, Zhongfeng ZHANG
  • Patent number: 10865287
    Abstract: A process for manufacturing an ultra-high thermally conductive graphene curing bladder includes the following steps: (1) pre-mixing an ultra-high thermally conductive graphene with rubber to obtain a pre-dispersed graphene master batch, performing a granulation process or a cutting process on the pre-dispersed graphene master batch to obtain a granular solid or a sheet solid, mixing the solid in a rubber mixing mill to obtain an ultra-high thermally conductive graphene rubber compound; (2) extruding, by an extruding machine, the ultra-high thermally conductive graphene rubber compound into a rubber strip of a desirable size; weighing and fixed-length processing the rubber strip of the ultra-high thermally conductive graphene rubber compound to obtain a rubber blank, placing the rubber blank into a pressing type curing bladder mold, closing the mold, pressurizing, heating and curing to obtain a finished product of the ultra-high thermally conductive graphene curing bladder.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: December 15, 2020
    Assignee: SHANDONG LINGLONG TYRE CO., LTD.
    Inventors: Feng Wang, Haitao Sui, Liqiang Dong, Haiying Li, Gaoquan Hu, Xiaogang Ma, Tao Sun, Rubin Zhuang
  • Patent number: 10854370
    Abstract: An embedded coil assembly embodiment includes a ferrite ring having an annular axis. The ferrite ring is positioned on a conductive metal surface. A plurality of separate, spaced apart conductive structures extend over the ferrite ring and are attached to the conductive metal surface in a first region of the conductive surface positioned radially outwardly of the annular axis of the ferrite ring and in a second region of the conductive surface positioned radially inwardly of the annular axis of the ferrite ring. An encapsulation layer covers, the ferrite ring and at least a portion of the plurality of conductive structures.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: December 1, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Haiying Li, Benjamin Michael Sutton, Ming Li
  • Publication number: 20200369852
    Abstract: A process for manufacturing an ultra-high thermally conductive graphene curing bladder includes the following steps: (1) pre-mixing an ultra-high thermally conductive graphene with rubber to obtain a pre-dispersed graphene master batch, performing a granulation process or a cutting process on the pre-dispersed graphene master batch to obtain a granular solid or a sheet solid, mixing the solid in a rubber mixing mill to obtain an ultra-high thermally conductive graphene rubber compound; (2) extruding, by an extruding machine, the ultra-high thermally conductive graphene rubber compound into a rubber strip of a desirable size; weighing and fixed-length processing the rubber strip of the ultra-high thermally conductive graphene rubber compound to obtain a rubber blank, placing the rubber blank into a pressing type curing bladder mold, closing the mold, pressurizing, heating and curing to obtain a finished product of the ultra-high thermally conductive graphene curing bladder.
    Type: Application
    Filed: August 22, 2018
    Publication date: November 26, 2020
    Applicant: SHANDONG LINGLONG TYRE CO., LTD.
    Inventors: Feng WANG, Haitao SUI, Liqiang DONG, Haiying LI, Gaoquan HU, Xiaogang MA, Tao SUN, Rubin ZHUANG
  • Publication number: 20200366096
    Abstract: A DC voltage coordination control method is applied to a multi-terminal VSC-HVDC power transmission system or a VSC-HVDC power grid system. When a lower-level control is used in the active power control mode, the active power reference value of the converter is generated according to the converter DC voltage and the converter DC voltage active power curve; it also includes an upper-level control to adjust the control mode and active power setting value of the lower-level control to ensure the steady-state performance of the system. This method has low dependence on communication, avoids the problem that the fixed slope and margin cannot meet all operating conditions, and is suitable for large-scale VSC-HVDC systems, and has scalability.
    Type: Application
    Filed: May 7, 2018
    Publication date: November 19, 2020
    Applicants: NR ELECTRIC CO., LTD, NR ENGINEERING CO., LTD
    Inventors: Nannan WANG, Yu LU, Yunlong DONG, Jie TIAN, Dongming CAO, Haiying LI, Chongxue JIANG, Jiacheng WANG
  • Patent number: 10797487
    Abstract: Provided is an on-line input and quit control method for a voltage-source converter unit. The method achieves the on-line input of a voltage-source converter unit by means of performing steps, such as charging control, deblocking transfer control and operation adjustment control, on a voltage-source converter to be input, and achieves the on-line quitting of the voltage-source converter unit by means of performing steps, such as direct-current voltage reduction control, bypass transfer control and converter blocking control, on a voltage-source converter to be quit. Correspondingly, provided is an on-line input and quit control device for a voltage-source converter unit, which can achieve the on-line steady input and quitting of a voltage-source converter in a series-type hybrid direct-current power transmission system or a series-type flexible direct-current power transmission system, without affecting the normal and stable operation of other already running converters.
    Type: Grant
    Filed: November 24, 2017
    Date of Patent: October 6, 2020
    Assignees: NR ELECTRIC CO., LTD, NR ENGINEERING CO., LTD
    Inventors: Jiang Lu, Yu Lu, Yunlong Dong, Nannan Wang, Yongping Wang, Wenqiang Zhao, Jie Tian, Haiying Li
  • Patent number: 10763761
    Abstract: A sub-module based hybrid converter is provided. By setting a half-controlled charging link of changing full bridge sub-modules from a blocked state to a half-blocked state one by one in a charging process, and raising the voltages of half bridge sub-modules to reach the starting point of a half bridge sub-module based self-powered supply in an uncontrolled stage of the half bridge sub-modules, the starting point of the sub-module based self-powered supply is increased, and the design difficulty of the sub-module based self- powered supply is reduced. The present invention also includes another charging method for a sub-module based hybrid converter.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: September 1, 2020
    Assignees: NR ELECTRIC CO., LTD., NR ENGINEERING CO., LTD
    Inventors: Jiudong Ding, Yu Lu, Yunlong Dong, Haiying Li, Jie Tian, Defeng Qiu, Tiangui Jiang, Jianyang Lian
  • Publication number: 20200220349
    Abstract: A fault switch configuration and clearing method in a flexible DC converter station, the flexible DC converter station is configured with a grid side switch and a valve side phase-split switch in the converter station. When a fault occurs, a faulty phase and a non-faulty phase are detected and identified by means of differential protection or low voltage overcurrent. An alternating current zero crossing condition is created by means of firstly turn off the non-faulty phase valve side phase-split switch and the grid side switch, thereby cutting off the faulty phase, disconnecting the connection between a power supply and a fault point, and achieving the clearing for faults. The described fault-clearing method is simple and practical, highly reliable, and connection between the fault point and the power supply is quickly and effectively cut; converter station equipment is effectively protected, and further expansion of the fault is avoided.
    Type: Application
    Filed: May 22, 2018
    Publication date: July 9, 2020
    Applicants: NR ELECTRIC CO., LTD, NR ENGINEERING CO., LTD
    Inventors: Yu LU, Gang LI, Jie TIAN, Nannan WANG, Haiying LI, Chongxue JIANG, Shunke SUI
  • Publication number: 20200220355
    Abstract: A chained multi-port grid-connected interface apparatus includes a commutation chain, at least one direct-current converter, and at least one direct-alternating converter. The commutation chain is formed by at least two sub-module units connected in series in the same direction, one end of the direct-current converter is connected to a direct-current end of the sub-module unit, and the other end is a direct-current interaction port of the chained multi-port grid-connected interface apparatus. A direct-current connection end of the direct-alternating converter is connected to the direct-current end of the sub-module unit, and an alternating-current connection end is an alternating-current interaction port of the chained multi-port grid-connected interface apparatus.
    Type: Application
    Filed: April 19, 2018
    Publication date: July 9, 2020
    Applicants: NR Electric Co., Ltd, NR Engineering Co., Ltd
    Inventors: Yeyuan XIE, Yu WANG, Haiying LI, Jianyang LIAN, Zhongfeng ZHANG, Jie TIAN