Patents by Inventor Zhigang Zheng
Zhigang Zheng 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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Publication number: 20240146059Abstract: A multistage energy utilization system based on electricity-heat-hydrogen-methane coupling is connected with a power grid, a heat-supply network and a gas-supply network. The system includes a renewable energy resource module, a hydrogen energy storage module, a heat storage module, a gas fired-boiler module, a methane reactor module and a carbon capture and storage (CCS) module. The renewable energy resource module is connected with the power grid and the hydrogen energy storage module. The hydrogen energy storage module is connected with the power grid, the heat-supply network and the methane reactor module. The methane reactor module is connected with the hydrogen energy storage module, the CCS module and the gas-supply network. The gas fired-boiler module is connected with the gas-supply network. The hydrogen energy storage module, the CCS module and the methane reactor module are integrated to improve energy utilization and consumption level of renewable energy resources.Type: ApplicationFiled: January 8, 2024Publication date: May 2, 2024Inventors: Jiehui ZHENG, Jiongcheng GUO, Zhigang LI, Qinghua WU
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Publication number: 20220335443Abstract: The present disclosure discloses a novel multi-stable and erasable anti-counterfeiting technology with controlled reflection color and the application thereof in optical coding. The method and use are characterized by high thermal stability and robust fatigue resistance, and the realization thereof relies on the material system composed of an intrinsic chiral diarylethene molecule based on steric hindrance ethene bridge and a liquid crystal (LC) material disclosed herein.Type: ApplicationFiled: October 12, 2020Publication date: October 20, 2022Applicants: EAST CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY, SUZHOU KUNHUANG NEW MATERIAL TECHNOLOGY CO.,LTD.Inventors: Weihong Zhu, Zhigang Zheng, Huijun Li, Honglong HU
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Patent number: 10203536Abstract: A photo-tunable liquid crystal composition may include a polymer matrix and a liquid crystal mixture dispersed within the polymer matrix. The liquid crystal mixture may include at least one achiral nematic liquid crystal material, at least sine photo-active chiral dopant, at least one photo-inactive chiral dopant, and at least one emissive dye. The composition may be fabricated in the form of an emulsion, a wet film, or a dry film. The dry film may be used in a photo-tunable liquid crystal film laser. The output wavelength of the photo-tunable liquid crystal film laser may be tuned by exposing the dry film to illumination having at least one wavelength at one or more transition wavelengths.Type: GrantFiled: June 5, 2014Date of Patent: February 12, 2019Assignee: EAST CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGYInventor: Zhigang Zheng
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Patent number: 9976081Abstract: A dual frequency liquid crystal may be stabilized in the blue phase by a polymer matrix to provide an improved blue phase temperature range having a magnitude of at least about 65° C. Polymer-stabilized, blue phase dual frequency liquid crystal compositions and methods for producing polymer-stabilized, blue phase dual frequency liquid crystals are disclosed.Type: GrantFiled: April 28, 2013Date of Patent: May 22, 2018Assignee: EAST CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGYInventor: Zhigang Zheng
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Publication number: 20170153490Abstract: A photo-tunable liquid crystal composition may include a polymer matrix and a liquid crystal mixture dispersed within the polymer matrix. The liquid crystal mixture may include at least one achiral nematic liquid crystal material, at least sine photo-active chiral dopant, at least one photo-inactive chiral dopant, and at least one emissive dye. The composition may be fabricated in the form of an emulsion, a wet film, or a dry film. The dry film may be used in a photo-tunable liquid crystal film laser. The output wavelength of the photo-tunable liquid crystal film laser may be tuned by exposing the dry film to illumination having at least one wavelength at one or more transition wavelengths.Type: ApplicationFiled: June 5, 2014Publication date: June 1, 2017Applicant: EAST CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGYInventor: Zhigang ZHENG
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Publication number: 20160145493Abstract: Disclosed are polarization-independent electro-optical compositions using dichroic-dye-doped polymer stabilized optically isotropic chiral liquid crystals. The isotropic phase of such compositions can be well maintained even if the temperature is below 0° C. The electro-optical performances of such compositions demonstrate large Kerr constants, fast response times, and large contrast ratios of the compositions. The power consumption and the cost of devices based on the compositions can be decreased substantially due to alignment-free and polarizer-free characteristics. The compositions can be used to generate low power consumption displays and other photonic devices.Type: ApplicationFiled: June 14, 2013Publication date: May 26, 2016Inventors: Zhigang ZHENG, Chao WANG
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Patent number: 9238776Abstract: Methods of forming a liquid crystal blue phase from composite materials having a chiral nematic liquid crystal host and a bent-shape molecule are described. The stable temperature range of the liquid crystal blue phase may be improved by controlling the thickness of the composite materials. For example, a given composition may have a maximum stable temperature range for the liquid crystal blue phase at about 1 ?m.Type: GrantFiled: March 22, 2012Date of Patent: January 19, 2016Assignee: East China University of Science and TechnologyInventor: Zhigang Zheng
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Publication number: 20130337197Abstract: Methods of forming a liquid crystal blue phase from composite materials having a chiral nematic liquid crystal host and a bent-shape molecule are described. The stable temperature range of the liquid crystal blue phase may be improved by controlling the thickness of the composite materials. For example, a given composition may have a maximum stable temperature range for the liquid crystal blue phase at about 1 ?m.Type: ApplicationFiled: March 22, 2012Publication date: December 19, 2013Applicant: EAST CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGYInventor: Zhigang Zheng
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Publication number: 20130299740Abstract: Composite materials, methods of making the composite materials, and optical devices including the composite materials are described herein. The composite materials include a chiral nematic liquid crystal and a crosslinked polymer. The composite materials form bistable liquid crystals and have a liquid crystal blue phase with a stability range greater than 60° C.Type: ApplicationFiled: April 27, 2012Publication date: November 14, 2013Applicant: EAST CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGYInventor: Zhigang Zheng
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Patent number: 8518499Abstract: Methods of forming a liquid crystal blue phase from composite materials comprising a chiral nematic liquid crystal host and an azobenzene-based bent-shape molecule are described. The composite materials quickly transfer from the liquid crystal blue phase to an isotropic phase under electromagnetic radiation and transfer from the isotropic phase to the liquid crystal blue phase when electromagnetic radiation is removed.Type: GrantFiled: January 19, 2012Date of Patent: August 27, 2013Assignee: Empire Technology Development LLCInventor: Zhigang Zheng
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Publication number: 20130187091Abstract: Methods of forming a liquid crystal blue phase from composite materials comprising a chiral nematic liquid crystal host and an azobenzene-based bent-shape molecule are described. The composite materials quickly transfer from the liquid crystal blue phase to an isotropic phase under electromagnetic radiation and transfer from the isotropic phase to the liquid crystal blue phase when electromagnetic radiation is removed.Type: ApplicationFiled: January 19, 2012Publication date: July 25, 2013Applicant: EAST CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGYInventor: Zhigang Zheng
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Publication number: 20070059358Abstract: The present invention relates to the matrix adjuvants for drop pills and the preparation of the drop pills. The matrix adjuvants for drop pills of the present invention comprise new matrix adjuvants with or without the plastifying components, which are typically natural matrix adjuvants derived from plants and of safety and non-toxicity. The present invention decreases the toxicity caused by polyethylene glycol, alters the situation that adjuvants derived from animals is scarce, improves the quality of drop pills and accelerates the development of drop pills.Type: ApplicationFiled: February 7, 2004Publication date: March 15, 2007Applicant: TIANJIN TASLY PHARMACEUTICAL CO., LTD., CHINAInventors: Jianming Chen, Xijun Yan, Yuewu Yang, Wenliang Lu, Yonghong Zhu, Zhengliang Ye, Wei Wang, Guoguang Zhu, Zhigang Zheng, Shuangming Wang