Patents by Inventor Zhimin Liu

Zhimin 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: 20240130595
    Abstract: An automatic cleaning apparatus includes: a mobile platform configured to automatically move on an operating surface; a cleaning module disposed on the mobile platform and including: a wet cleaning module configured to clean at least a part of the operating surface by means of wet cleaning; a lifting and lowering structure connected with the wet cleaning module and configured to enable the wet cleaning module to move vertically relative to the mobile platform; and a cleaning liquid module for providing cleaning liquid for the wet cleaning module; and a driving mechanism, including a first driving component and a second driving component.
    Type: Application
    Filed: February 9, 2022
    Publication date: April 25, 2024
    Inventors: Xing LI, Pan CHENG, Chuanlin DUAN, Zhimin YANG, Jungang LIU, Fan YANG
  • Publication number: 20240092226
    Abstract: An airflow sensing seat comprises a seat body (1), an airbag (2), a sensing assembly (3), and a micro control unit (4). The airbag (2) is provided in the seat body (1). A deformable support structure (21) is provided in the airbag (2). The support structure (21) is used to maintain an appropriate amount of gas in the airbag (2). A transmission mechanism (5) is provided between the airbag (2) and the sensing assembly (3). The transmission mechanism (5) is used to transmit gas disturbance in the airbag (2) to the sensing assembly (3). The sensing assembly (3) is used to generate a corresponding analog electrical signal according to the gas disturbance. The sensing assembly (3) is electrically connected to the micro control unit (4). The sensing assembly (3) transmits the analog electrical signal to the micro control unit (4). The micro control unit (4) is used to perform analysis and computation on the analog electrical signal so as to acquire a biological signal of a user.
    Type: Application
    Filed: December 27, 2019
    Publication date: March 21, 2024
    Inventors: Zhimin FU, Chenlong MEI, Jiaya YU, Qipeng LIU, Xingfeng LI, Jingfeng ZHENG
  • Patent number: 11933138
    Abstract: A sliding sleeve device has an outer cylinder, a circulation hole being provided in the wall of the outer cylinder; and an inner cylinder provided in an inner cavity of the outer cylinder. In an initial state, the inner cylinder and the outer cylinder are fixed to each other to seal the circulation hole. In a first state, the inner cylinder is movable relative to the outer cylinder, thereby unsealing the circulation hole. A protection mechanism is provided in the circulation hole, which has an inner member located on the radially inner side and an outer member located on the radially outer side.
    Type: Grant
    Filed: June 10, 2021
    Date of Patent: March 19, 2024
    Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, SINOPEC SOUTHWEST OIL & GAS COMPANY
    Inventors: Zhimin Hou, Dan Hu, Qiang Wang, Yijun Zhou, Jiang Qian, Chen Chen, Tao Liu, Jianfa Ci, Wenfeng Pang, Wenjiang Teng
  • Patent number: 11673128
    Abstract: A method for preparing a molecular sieve SCR (selective catalytic reduction) catalyst and a prepared catalyst therethrough. In the method, several molecular sieves are mixed and modified by transition metal or rare-earth metal via ion exchange, then loaded Fe by equivalent-volume impregnation, and loaded Cu by one or more liquid ion exchange. This present invention, combined with several techniques, such as modification of stable molecular sieve by transition and rare-earth metal, Fe loading by equivalent-volume impregnation and Cu loading by one or more liquid ion exchange, and after through stable and effective modification and loading control, the obtained catalyst material is coated on a carrier substrate via size mixing and coating process to be prepared into an integral catalyst.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: June 13, 2023
    Assignee: Sinocat Environmental Technology Co., Ltd.
    Inventors: Zhimin Liu, Xi Feng, Yanhua Zhang, Dong Zeng, Jie Wen, Ganxue Wu, Ruifang Wang, Kuan Wei, Yun Li, Qizhang Chen, Yaoqiang Chen
  • Publication number: 20220401940
    Abstract: An ozone purification catalyst, and a preparation method therefor and an application thereof are provided. The catalyst coating uses macroporous, high specific surface and CeO2 and/or La2O3 modified Al2O3 as the carrier material, and Mn and/or Pd as the active component. The preparation method is to prepare the Al2O3-based material by a sol-gel method, and then to load the active components on the carrier material, and to dry, calcinate and solidify to obtain the ozone purification catalyst. The catalysts as prepared shows a fast and efficient purification of ozone. The complete conversion temperature covers a wide range of temperature. The catalyst has excellent texture performance, high specific surface area and large pore volume, which is beneficial to ozone purification when the car is running at high speed. The particle sizes and colors of the catalyst can be modified according to various requirements.
    Type: Application
    Filed: August 29, 2022
    Publication date: December 22, 2022
    Inventors: Yun WANG, Qizhang CHEN, Yun LI, Zhimin LIU, Haidi XU, Jianli WANG, Yaoqiang CHEN
  • Publication number: 20220142992
    Abstract: Embodiments of the disclosure relate generally to formulations, methods, kits, and dosage forms for improved stability comprising at least two active ingredients, AMD3100, or similar stem cell mobilizer, and Tacrolimus, or FK506 derivative or analog, and one or more excipients. The formulations may be administered as a single dose subcutaneous injection. The formulations may be useful in treating various diseases, disorders or injuries.
    Type: Application
    Filed: November 10, 2021
    Publication date: May 12, 2022
    Inventors: Zhaoli Sun, John Sun, Jared Griffin, Christy Eatmon, Rachel Labell, Zhimin Liu, Richard Brewer, Issac Agyemang, Mitchell Williams
  • Patent number: 11307219
    Abstract: The present disclosure relates to the technical field of microwave test, and discloses a method and a system for analyzing the spatial resolution of a microwave near-field probe and a microwave microscope equipped with the system, wherein in the method for analyzing the spatial resolution of the microwave near-field probe, a three-dimensional equipotential surface in a sample is drawn by using an electric field formula calculated by a quasi-static theory; an equivalent model of a probe sample is established by using finite element analysis software, so as to change material characteristics in the area outside the three-dimensional equipotential surface; by observing the influence of changing materials on the potential distribution in the sample, a near-field action range of the probe is determined, and the spatial resolution of the microwave near-field scanning microscope is analyzed and calculated.
    Type: Grant
    Filed: April 12, 2021
    Date of Patent: April 19, 2022
    Assignee: Xidian University
    Inventors: Xiaolong Chen, Jia Sun, Kai Yang, Zhimin Liu
  • Publication number: 20210333305
    Abstract: The present disclosure relates to the technical field of microwave test, and discloses a method and a system for analyzing the spatial resolution of a microwave near-field probe and a microwave microscope equipped with the system, wherein in the method for analyzing the spatial resolution of the microwave near-field probe, a three-dimensional equipotential surface in a sample is drawn by using an electric field formula calculated by a quasi-static theory; an equivalent model of a probe sample is established by using finite element analysis software, so as to change material characteristics in the area outside the three-dimensional equipotential surface; by observing the influence of changing materials on the potential distribution in the sample, a near-field action range of the probe is determined, and the spatial resolution of the microwave near-field scanning microscope is analyzed and calculated.
    Type: Application
    Filed: April 12, 2021
    Publication date: October 28, 2021
    Inventors: Xiaolong Chen, Jia Sun, Kai Yang, Zhimin Liu
  • Publication number: 20210060539
    Abstract: A method for preparing a molecular sieve SCR (selective catalytic reduction) catalyst and a prepared catalyst therethrough. In the method, several molecular sieves are mixed and modified by transition metal or rare-earth metal via ion exchange, then loaded Fe by equivalent-volume impregnation, and loaded Cu by one or more liquid ion exchange. This present invention, combined with several techniques, such as modification of stable molecular sieve by transition and rare-earth metal, Fe loading by equivalent-volume impregnation and Cu loading by one or more liquid ion exchange, and after through stable and effective modification and loading control, the obtained catalyst material is coated on a carrier substrate via size mixing and coating process to be prepared into an integral catalyst.
    Type: Application
    Filed: September 12, 2019
    Publication date: March 4, 2021
    Inventors: ZHIMIN LIU, XI FENG, YANHUA ZHANG, DONG ZENG, JIE WEN, GANXUE WANG, RUIFANG WANG, KUAN WEI, YUN LI, QIZHANG CHEN, YAOQIANG CHEN
  • Patent number: 10031923
    Abstract: Providing search results includes: receiving a set of one or more search keywords; obtaining a plurality of search results that are generated in response to a search performed using the set of one or more search keywords, the plurality of search results each having corresponding region attribute information; establishing a set of one or more regions according to at least region attribute information of the plurality of search results; generating display information associated with the set of one or more regions, the display information comprising one or more of: textual information, graphic information, or geographical location information; and causing the display information to be displayed.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: July 24, 2018
    Assignee: Alibaba Group Holding Limited
    Inventor: Zhimin Liu
  • Patent number: 9807986
    Abstract: A method for establishing an animal model of hepatocellular carcinoma (HCC) bone metastasis, the method including: 1) establishing 97H and LM3 cell clones with stable expression of firefly luciferase (LUC); 2) allowing HCC cells to form bone metastasis in nude mice via intratibial injection; 3) reproducing HCC bone metastasis in nude mice via intracardiac injection of tumor cells; and 4) isolating a sub-population of tumor cells that targets metastasis to bone. The 97H and the LM3 are highly metastatic HCC cell lines transfected with luciferase gene. BALB/cA-nu mice are 4-5 weeks old and maintained in laminar flow cabinets under SPF conditions and received human care throughout an entire study. A cell number for intratibial injection is 0.5×106, and a cell number for intracardiac injection is 1×106.
    Type: Grant
    Filed: March 28, 2016
    Date of Patent: November 7, 2017
    Inventors: Rui Hou, Yuwei Wang, Huifang Liang, Zhanguo Zhang, Zhimin Liu, Binhao Zhang, Bixiang Zhang, Xiaoping Chen
  • Patent number: 9797321
    Abstract: An internal combustion engine includes a cylinder block that defines a cylinder and a cylinder head positioned relative to the cylinder block. A reciprocating piston is arranged inside the cylinder for compressing an air and fuel mixture at a geometric compression ratio of at least 10:1. A crankshaft is arranged in the cylinder block and rotated by the piston. An intake valve is operatively connected to the cylinder head and controls delivery of air to the cylinder for combustion therein. A mechanism provides late intake valve closing via constant peak lift of the intake valve over at least 5 degrees of crankshaft rotation. A multi-stage boosting system, having a turbocharger, a supercharger, and a continuously variable transmission for varying the supercharger's rotating speed, is regulated by a controller to selectively pressurize air being received from the ambient for delivery to the cylinder.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: October 24, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: David Sun, Yongsheng He, Zhimin Liu, Chengwu Duan
  • Publication number: 20170273283
    Abstract: A method for establishing an animal model of hepatocellular carcinoma (HCC) bone metastasis, the method including: 1) establishing 97H and LM3 cell clones with stable expression of firefly luciferase (LUC); 2) allowing HCC cells to form bone metastasis in nude mice via intratibial injection; 3) reproducing HCC bone metastasis in nude mice via intracardiac injection of tumor cells; and 4) isolating a sub-population of tumor cells that targets metastasis to bone. The 97H and the LM3 are highly metastatic HCC cell lines transfected with luciferase gene. BALB/cA-nu mice are 4-5 weeks old and maintained in laminar flow cabinets under SPF conditions and received human care throughout an entire study. A cell number for intratibial injection is 0.5×106, and a cell number for intracardiac injection is 1×106.
    Type: Application
    Filed: March 28, 2016
    Publication date: September 28, 2017
    Inventors: Rui HOU, Yuwei WANG, Huifang LIANG, Zhanguo ZHANG, Zhimin LIU, Binhao ZHANG, Bixiang ZHANG, Xiaoping CHEN
  • Publication number: 20170226940
    Abstract: An internal combustion engine includes a cylinder block that defines a cylinder and a cylinder head positioned relative to the cylinder block. A reciprocating piston is arranged inside the cylinder for compressing an air and fuel mixture at a geometric compression ratio of at least 10:1. A crankshaft is arranged in the cylinder block and rotated by the piston. An intake valve is operatively connected to the cylinder head and controls delivery of air to the cylinder for combustion therein. A mechanism provides late intake valve closing via constant peak lift of the intake valve over at least 5 degrees of crankshaft rotation. A multi-stage boosting system, having a turbocharger, a supercharger, and a continuously variable transmission for varying the supercharger's rotating speed, is regulated by a controller to selectively pressurize air being received from the ambient for delivery to the cylinder.
    Type: Application
    Filed: February 9, 2016
    Publication date: August 10, 2017
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: David Sun, Yongsheng He, Zhimin Liu, Chengwu Duan
  • Publication number: 20160004725
    Abstract: Providing search results includes: receiving a set of one or more search keywords; obtaining a plurality of search results that are generated in response to a search performed using the set of one or more search keywords, the plurality of search results each having corresponding region attribute information; establishing a set of one or more regions according to at least region attribute information of the plurality of search results; generating display information associated with the set of one or more regions, the display information comprising one or more of: textual information, graphic information, or geographical location information; and causing the display information to be displayed.
    Type: Application
    Filed: June 23, 2015
    Publication date: January 7, 2016
    Inventor: Zhimin Liu
  • Patent number: 8323580
    Abstract: A micro structure for sensing a substance using light scattering includes a substrate, a first layer on the substrate, wherein the first layer comprises a metallic material, a second layer over the first layer, and a mask layer over the second layer. A plurality of nano holes are formed through the mask layer and the second layer, wherein the plurality of holes are defined in part by internal surfaces on the second layer and the mask layer. Two or more structure layers are formed on the mask layer and the internal surfaces in the plurality of holes. The two or more structure layers comprise different material compositions.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: December 4, 2012
    Assignee: Optotrace (SuZhou) Technologies, Inc.
    Inventors: Hong Wang, Zhimin Liu
  • Publication number: 20110140209
    Abstract: A micro structure for sensing a substance using light scattering includes a substrate, a first layer on the substrate, wherein the first layer comprises a metallic material, a second layer over the first layer, and a mask layer over the second layer. A plurality of nano holes are formed through the mask layer and the second layer, wherein the plurality of holes are defined in part by internal surfaces on the second layer and the mask layer. Two or more structure layers are formed on the mask layer and the internal surfaces in the plurality of holes. The two or more structure layers comprise different material compositions.
    Type: Application
    Filed: February 18, 2011
    Publication date: June 16, 2011
    Inventors: Hong Wang, Zhimin Liu
  • Patent number: 7892489
    Abstract: A micro structure includes a silicon substrate, an adhesion layer on the silicon substrate, a bias layer on the adhesion layer, and structure layers on the adhesion layer. The two or more structure layers comprise different material compositions and a plurality of holes through at least two of the structure layers. Widths of the plurality of holes are in the range of 0.5-500 nm.
    Type: Grant
    Filed: May 29, 2007
    Date of Patent: February 22, 2011
    Assignee: OptoTrace Technologies, Inc.
    Inventors: Hong Wang, Zhimin Liu
  • Patent number: 7428046
    Abstract: New and improved applications of Raman Scattering are disclosed. These applications may be implemented with or without using an enhanced nano-structured surface that is trademarked as the RamanNanoChip™ disclosed in a pending patent. As a RamanNanoChip™ provides much higher sensitivity in SERS compared with conventional enhance surface, broader scopes of applications are now enabled and can be practically implemented as now disclosed in this application. Furthermore, a wide range of applications is achievable as new and improved Raman sensing applications. By applying the analysis of Raman scattering spectrum, applications can be carried out to identify unknown chemical compositions to perform the tasks of homeland security; food, drug and drinking materials safety; early disease diagnosis environmental monitoring; industrial process monitoring, precious metal and gem authentications, etc.
    Type: Grant
    Filed: March 1, 2007
    Date of Patent: September 23, 2008
    Assignee: Opto Trace Technologies, Inc.
    Inventors: Hong Wang, Zhimin Liu
  • Patent number: 7384792
    Abstract: A method to fabricate an optical scattering probe and the method includes the steps of a) depositing an conductive layer on a substrate followed by depositing a noble metal layer on top of the conductive layer and then an aluminum layer on top the noble metal layer; b) anodizing the aluminum layer to form a porous aluminum oxide layer having a plurality of pores; and c) etching the plurality of pores through the aluminum oxide layer and the noble metal layer for forming a nano-hole array. In a preferred embodiment, the step of etching the plurality of pores through the aluminum oxide layer and the noble metal layer further comprising a step of widening the pores followed by removing the aluminum oxide layer for forming a plurality of noble metal column on top of the conductive layer.
    Type: Grant
    Filed: May 24, 2004
    Date of Patent: June 10, 2008
    Assignee: Opto Trace Technologies, Inc.
    Inventors: Hong Wang, Zhimin Liu