Patents by Inventor Weiwei Liu

Weiwei Liu 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).

  • Publication number: 20210167913
    Abstract: Provided are a signal transmission method, apparatus, and device, and a storage medium. The method includes generating a second narrowband positioning reference signal sequence according to a system frame number (SFN); obtaining a second narrowband positioning reference signal according to the second narrowband positioning reference signal sequence; and transmitting a first narrowband positioning reference signal on a first radio frame set, and transmitting the second narrowband positioning reference signal on a second radio frame set.
    Type: Application
    Filed: May 13, 2019
    Publication date: June 3, 2021
    Applicant: ZTE CORPORATION
    Inventors: Youjun HU, Bo DAI, Huiying FANG, Kun LIU, Weiwei YANG
  • Publication number: 20210139497
    Abstract: Disclosed by the present invention are a thienocyclic compound represented by formula (I), a pharmaceutically acceptable salt or a hydrate thereof, a composition containing the thienocyclic compound, and a preparation method therefor.
    Type: Application
    Filed: November 23, 2018
    Publication date: May 13, 2021
    Applicant: SHANGHAI YUYAO BIOTECH LTD.
    Inventors: Hankun ZHANG, Weiqiang LU, Mingyao LIU, Junjie YANG, Weiwei YU, Longlong HU, Xinpei ZHANG, Xianhua LIN, Wenjuan LIU, Zaixi XI
  • Publication number: 20210070660
    Abstract: An economical high-strength quick-hardening grouting material includes ordinary Portland cement, a quick-hardening sulphoaluminate gelling agent and water. The ratio of the mass of water to the sum of the mass of the ordinary Portland cement and the mass of quick hardening sulphoaluminate gelling agent is 0.46:1. The ratio of the mass of the quick-hardening sulphoaluminate gelling agent to the mass of the ordinary Portland cement is (0.67-1.5):1. The initial setting time of the grouting reinforcement material is 40±5 min, and the average compressive strength of a cube solidified for 4 hours is higher than or equal to 10 MPa.
    Type: Application
    Filed: June 14, 2019
    Publication date: March 11, 2021
    Inventors: Jianxun CHEN, Lijun CHEN, Yanbin LUO, Weiwei LIU, Chuanwu WANG
  • Patent number: 10877213
    Abstract: An optical module includes a circuit board and a receiver disposed on the circuit board. The circuit board includes a groove disposed in a surface of the circuit board. The groove is recessive along a height direction of the circuit board. The receiver includes an arrayed waveguide grating. The arrayed waveguide grating is configured to receive optical signal from an optical fiber. The arrayed waveguide grating is arranged above the groove and opposite to the groove.
    Type: Grant
    Filed: September 6, 2019
    Date of Patent: December 29, 2020
    Assignee: HISENSE BROADBAND MULTIMEDIA TECHNOLOGIES CO., LTD.
    Inventors: Yifan Xie, Qinhao Fu, Weiwei Liu, Mengbo Fu
  • Publication number: 20200398238
    Abstract: The present invention discloses multifunctional blending equipment, including a clear water supply system, a spray system, a mixing system, a powder material storage and transport system, a mixing tank, a discharge system, and an electrical control system. A path of the clear water supply system is connected to the mixing tank by a tubing, and another path is connected to an input end of the spray system. An output end of the spray system is connected in parallel to more than two mixing systems. The quantity of the powder material storage and transport systems is equal to that of the mixing systems. Each powder material storage and transport system is correspondingly connected to one mixing system. Output ends of the more than two mixing systems are all connected to the mixing tank. An output end of the mixing tank is connected to the discharge system.
    Type: Application
    Filed: April 1, 2020
    Publication date: December 24, 2020
    Inventors: Jifeng Zhong, Weiwei Liu, Kun Zhang, Xincheng Li, Jixin Wang, Yipeng Wu, Sheng Chang, Bingnan Lv, Shuwei Li, Chuanlu Bao
  • Publication number: 20200400005
    Abstract: The present invention discloses electro-hydraulic hybrid drive sand-mixing equipment, including a skid base, an electric motor, a hydraulic pump, a discharge centrifugal pump, a suction centrifugal pump, a mixing tank, a dry additive system, a liquid additive system, and a sand auger system. The electric motor, the hydraulic pump, the discharge centrifugal pump, the suction centrifugal pump, the mixing tank, the dry additive system, the liquid additive system, and the sand auger system are integrally skid mounted on the skid base. There are two electric motors, including a first electric motor and a second electric motor. The first electric motor drives the discharge centrifugal pump, and the second electric motor actuates the hydraulic pump, to drive the suction centrifugal pump, the mixing tank, the dry additive system, the liquid additive system, and the sand auger system. The electric motor is an integrated variable-frequency drive electric motor.
    Type: Application
    Filed: March 30, 2020
    Publication date: December 24, 2020
    Inventors: Maomao Han, Weiwei Liu, Yongcheng Liu, Yipeng Wu, Shuwei Li, Shijun Song, Lianpan Duan
  • Patent number: 10870093
    Abstract: The present invention discloses multifunctional blending equipment, including a clear water supply system, an injection system, more than two mixing systems, more than two powder storage and delivery systems, a mixing tank, a discharge system, and an electrical control system. One path of the clear water supply system is piped into the mixing tank, and another path of the clear water supply system is connected to the input end of the infection system. An output end of the injection system is connected in parallel with more than two mixing systems. The number of the powder storage and delivery systems is equal to that of the mixing systems. Each powder storage and delivery system is correspondingly connected to one mixing system. Output ends of the more than two mixing systems are all connected into the mixing tank. An output end of the mixing tank is connected to the discharge system.
    Type: Grant
    Filed: April 1, 2020
    Date of Patent: December 22, 2020
    Assignee: Yantai Jereh Petroleum Equipment & Technologies Co., Ltd.
    Inventors: Jifeng Zhong, Weiwei Liu, Kun Zhang, Xincheng Li, Jixin Wang, Yipeng Wu, Sheng Chang, Bingnan Lv, Shuwei Li, Chuanlu Bao
  • Publication number: 20200392363
    Abstract: A composition containing a fluorine-containing polymer having a curable functional group and a pentamethylene diisocyanate-based curing agent. Also disclosed is a coating film obtained from the composition; a laminate including a substrate and a layer obtained from the composition; a back sheet for a solar cell module having a water-impermeable sheet and a coating film obtained from the composition, the coating film being formed on at least one side of the water-impermeable sheet; and a solar cell module having a water-impermeable sheet and a coating film obtained from the composition, the coating film being formed on at least one side of the water-impermeable sheet, and a sealant layer formed above the coating film.
    Type: Application
    Filed: November 20, 2018
    Publication date: December 17, 2020
    Applicants: DAIKIN FLUOROCHEMICALS (CHINA) CO., LTD., DAIKIN INDUSTRIES, LTD.
    Inventors: Weiwei LIU, Hideto NAKAGAWA, Masaru NAGATO
  • Patent number: 10864487
    Abstract: The present invention discloses a novel sand mixing device, including an electric motor and a hydraulic system, wherein the electric motor is used as the power source of the hydraulic system, and the hydraulic system drives all the actuating elements in the sand mixing device. Beneficial effects: in the present invention, the traditional diesel engine drive mode is changed into a motor drive mode and a hydraulic system is maintained, and the power is all in the form of an electro-hydraulic system, realizing the advantages of environmental protection and energy saving with the electric motors as the power source, also taking into account the advantages of small size and flexible layout of the drive parts of the hydraulic system. Therefore, the issues of not environmental-friendly, large size, inconvenient transportation, well site layout, and maintenance in the application of traditional sand mixing device can be addressed.
    Type: Grant
    Filed: July 17, 2020
    Date of Patent: December 15, 2020
    Assignee: American Jereh International Corporation
    Inventors: Maomao Han, Shuwei Li, Weiwei Liu, Mingsheng Li, Xiangxiang Ren, Changli Li, Binggang Yang
  • Patent number: 10759818
    Abstract: A simple preparation method for a dialkoxypropyl methylphosphonate, wherein a methyl halogenated phosphonate monoester is reacted with a 3,3-dialkoxypropyl magnesium or zinc halide to obtain a 3,3-dialkoxypropyl methylphosphonate. The starting materials are readily available, the operations are simple, the conditions are mild, the synthesis conversion rate is high, and the method is suitable for industrial production.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: September 1, 2020
    Assignee: JIANGSU GOOD HARVEST-WEIEN AGROCHEMICAL CO., LTD
    Inventors: Lian Jiang, Weiwei Liu
  • Publication number: 20200182840
    Abstract: The present invention relates to a quality control method for a Chinese patent drug, and specifically relates to an identification method and a content measurement method for the pediatric compound Endothelium Corneum Gigeriae Galli chewable tablet. Identification is carried out by using specific thin-layer chromatographic identification conditions, and the content is measured by using specific high-performance liquid chromatographic conditions. Accordingly, the specificity and the accuracy are high, chemical components of the product can be fully reflected, the sensitivity is high, the reproducibility is high, the operations are simple, and the change condition of the product quality can be reflected more objectively, comprehensively and sensitively, so that the product quality is controlled on the whole, and comprehensive monitoring of the quality of the Chinese Drug is implemented.
    Type: Application
    Filed: August 14, 2018
    Publication date: June 11, 2020
    Inventors: Zhonghua GUO, Lizhuang ZHANG, Weiwei LIU, Muge QI, Zhiping ZHANG, Bingbing ZHANG
  • Publication number: 20190391331
    Abstract: An optical module includes a circuit board and a receiver disposed on the circuit board. The circuit board includes a groove disposed in a surface of the circuit board. The groove is recessive along a height direction of the circuit board. The receiver includes an arrayed waveguide grating. The arrayed waveguide grating is configured to receive optical signal from an optical fiber. The arrayed waveguide grating is arranged above the groove and opposite to the groove.
    Type: Application
    Filed: September 6, 2019
    Publication date: December 26, 2019
    Applicant: Hisense Broadband Multimedia Technologies Co., Ltd.
    Inventors: Yifan XIE, Qinhao FU, Weiwei LIU, Mengbo FU
  • Publication number: 20190284215
    Abstract: A simple preparation method for a dialkoxypropyl methylphosphonate, wherein a methyl halogenated phosphonate monoester is reacted with a 3,3-dialkoxypropyl magnesium or zinc halide to obtain a 3,3-dialkoxypropyl methylphosphonate. The starting materials are readily available, the operations are simple, the conditions are mild, the synthesis conversion rate is high, and the method is suitable for industrial production.
    Type: Application
    Filed: September 13, 2018
    Publication date: September 19, 2019
    Inventors: Lian JIANG, Weiwei LIU
  • Patent number: 10399992
    Abstract: Disclosed are a method for preparing a benzodioxole derivative (AD-35) shown by Formula (I) and an intermediate thereof. The method of the present invention involves: using piperic acid as a raw material; and performing bromination, esterification, cyanidation, cyclopropane lactamization, amide nitrogen alkylation, deprotection, piperidine nitrogen alkylation and salification to obtain the compound of Formula (I). The method has cheap and easily available start raw materials, short synthesis routes and simple operation, and is suitable for industrial production.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: September 3, 2019
    Assignee: Zhejiang Hisun Pharmaceutical Co., Ltd.
    Inventors: Jinqing Zhong, Xuyang Zhao, Hua Bai, Yongxiang Gong, Xinlong Zhang, Qifeng Zhu, Weiwei Liu, Ya Zhou
  • Patent number: 10352855
    Abstract: A method, apparatus and optical device for detecting a relationship between an evanescent field and Goos-Hänchen shift, said method comprising: obtaining a potential field function of an evanescent field acting on total-reflection light according to physical meanings of a force function and the potential field function of light in the evanescent field (S101); obtaining a wave function of the perturbed total-reflection light by means of the Schrödinger equation by combining with the potential field function of the evanescent field acting on total-reflection light (S102); and comparing the wave function of the perturbed total-reflection light with a wave function of free total-reflection light with no action from the evanescent field, and determining a momentum gained by the total-reflection light under the action of the evanescent field, which is the same in nature as a momentum of the evanescent field (S103).
    Type: Grant
    Filed: July 28, 2018
    Date of Patent: July 16, 2019
    Inventors: Ping Chen, Ming Li, Weiwei Liu, Lie Lin
  • Patent number: 10295083
    Abstract: A real-time analysis system for operation of working ship based on ship attitude measurement includes: a central processing unit (10); a position monitoring unit (20) for detecting and providing position-attitude information and heading information of the working ship at a predetermined time, and the position-attitude information and heading information of the working ship at a predetermined time is provided to the central processing unit (10); a manual data input unit (30) connected to the central processing unit (10) and capable of providing the pipeline model data to the central processing unit (10) in a manual input method; and a display unit (40) connected to the central processing unit (10) which displays the dynamic response data of the pipeline according to the processed data provided by the central processing unit (10).
    Type: Grant
    Filed: January 9, 2017
    Date of Patent: May 21, 2019
    Assignees: CHINA NATIONAL OFFSHORE OIL CORPORATION, OFFSHORE OIL ENGINEERING CO., LTD., COTEC, INC
    Inventors: Facheng Wang, Shuang Gao, Ke Tang, Zhigang Li, Yigong Zhang, Yong Luo, Jin Wang, Jun Wang, Weiwei Liu, Xiaohuan Zhu, Yang Li, Jiannan Li, Xiangwei Meng
  • Publication number: 20190100527
    Abstract: Disclosed are a method for preparing a benzodioxole derivative (AD-35) shown by Formula (I) and an intermediate thereof. The method of the present invention involves: using piperic acid as a raw material; and performing bromination, esterification, cyanidation, cyclopropane lactamization, amide nitrogen alkylation, deprotection, piperidine nitrogen alkylation and salification to obtain the compound of Formula (I). The method has cheap and easily available start raw materials, short synthesis routes and simple operation, and is suitable for industrial production.
    Type: Application
    Filed: March 28, 2017
    Publication date: April 4, 2019
    Applicant: Zhejiang Hisun Pharmaceutical Co., Ltd.
    Inventors: Jinqing Zhong, Xuyang Zhao, Hua Bai, Yongxiang Gong, Xinlong Zhang, Qifeng Zhu, Weiwei Liu, Ya Zhou
  • Publication number: 20190072211
    Abstract: A real-time analysis system for operation of working ship based on ship attitude measurement includes: a central processing unit (10); a position monitoring unit (20) for detecting and providing position-attitude information and heading information of the working ship at a predetermined time, and the position-attitude information and heading information of the working ship at a predetermined time is provided to the central processing unit (10); a manual data input unit (30) connected to the central processing unit (10) and capable of providing the pipeline model data to the central processing unit (10) in a manual input method; and a display unit (40) connected to the central processing unit (10) which displays the dynamic response data of the pipeline according to the processed data provided by the central processing unit (10).
    Type: Application
    Filed: January 9, 2017
    Publication date: March 7, 2019
    Applicants: China National Offshore Oil Corporation, Offshore Oil Engineering Co., Ltd., COTEC,INC
    Inventors: Facheng WANG, Shuang GAO, Ke TANG, Zhigang LI, Yigong ZHANG, Yong LUO, Jin WANG, Jun WANG, Weiwei LIU, Xiaohuan ZHU, Yang LI, Jiannan LI, Xiangwei MENG
  • Patent number: 10162455
    Abstract: An FPC of a capacitive touchscreen and a method for mounting the FPC. The FPC comprises a sensing circuit and a driving circuit which respectively matches with a sensing circuit layer and a driving circuit layer of a capacitive touchscreen panel and have several contacts for matching the sensing circuit layer and the driving circuit layer for corresponding connection; an IC driving chip, disposed between the sensing circuit and the driving circuit. The sensing circuit and the driving circuit are disposed in parallel or on the same line. The sensing circuit or the driving circuit is provided with a bending area, and the sensing circuit or the driving circuit is able to be turned towards the driving circuit or the sensing circuit, so as to allow the sensing circuit to match the sensing circuit layer and allow the driving circuit to match the driving circuit layer.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: December 25, 2018
    Assignee: Kunshan Visionox Display Co., Ltd.
    Inventors: Weiwei Liu, Yao Hong
  • Publication number: 20180364164
    Abstract: A method, apparatus and optical device for detecting a relationship between an evanescent field and Goos-Hänchen shift, said method comprising: obtaining a potential field function of an evanescent field acting on total-reflection light according to physical meanings of a force function and the potential field function of light in the evanescent field (S101); obtaining a wave function of the perturbed total-reflection light by means of the Schrödinger equation by combining with the potential field function of the evanescent field acting on total-reflection light (S102); and comparing the wave function of the perturbed total-reflection light with a wave function of free total-reflection light with no action from the evanescent field, and determining a momentum gained by the total-reflection light under the action of the evanescent field, which is the same in nature as a momentum of the evanescent field (S103).
    Type: Application
    Filed: July 28, 2018
    Publication date: December 20, 2018
    Inventors: Ping Chen, Ming Li, Weiwei Liu, Lie Lin