Patents by Inventor Yanan Zhu
Yanan Zhu 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: 20240128811Abstract: A direct drive motor includes a base, a stator assembly provided on the outer periphery of the base, a rotating shaft assembly provided in the base, and a rotor assembly connected to the rotating shaft assembly and covering the stator assembly. The base includes an inner end, an outer end, and a receiving chamber passing through the inner end and the outer end. The rotating shaft assembly is rotatably mounted in the receiving chamber. A first circuit board is mounted at the inner end; a recess is formed in the outer end; a second circuit board is mounted in the recess; and the first circuit board is connected to the second circuit board. When being applied to an apparatus such as an intelligent device and an intelligent robot, the direct drive motor is good in stability, high in intelligence, reliable in overall structure, and strong in practicability.Type: ApplicationFiled: December 25, 2023Publication date: April 18, 2024Applicant: DONGGUAN DIRECT DRIVE TECHNOLOGY LIMITEDInventors: Di ZHANG, Yanan YU, Zhilong ZHU, Ying LIU
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Patent number: 11959243Abstract: A method for constructing a large-span station by two-wing open type semi-covered excavation and semi-reverse construction, is divided into three stages of excavation. First, excavate a first-stage inner small foundation pit, then excavate a second-stage annular foundation pit within the first-stage retaining piles and outside the range of the first-stage inner small foundation pit, and finally excavate a third-stage semi-covered excavation foundation pit below the first-stage inner small foundation pit and the second-stage annular foundation pit. By setting graded retaining piles, middle upright post piles, middle top plates, local waist beams and local concrete supports in the soil-rock combination strata, so that the force transfer between the foundation pit enclosure and the station main body structures and the underlying rock layer is clear and reliable, and a stable frame structure is achieved.Type: GrantFiled: July 24, 2023Date of Patent: April 16, 2024Assignees: Beijing Urban Construction Design & Development Group Co., LimitedInventors: Fucai Hua, Gang Lei, Zhihui Yang, Jianye Zhu, Liang Zhang, Ning Li, Yanan Dong, Ningning Li
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Patent number: 11938222Abstract: The present application relates to a pregabalin sustained release composition, comprising: (a) an active ingredient; (b) a matrix-forming agent; (c) a swelling agent; (d) a gelling agent; and optionally a filler. The pregabalin sustained release composition provided in the present application can rapidly swell in volume when exposed to aqueous medium until exceeding the dimeter of human gastric pyloric (13 mm). It thereby prolongs the gastric emptying time to increase the retention time of pregabalin in the stomach and enhances absorption of pregabalin in the small intestine and ascending colon. Moreover, the pregabalin sustained release composition provided herein achieves a sustained release for 24 h, which allows QD (once a day) administration, reduces administration number, and improves patient compliance.Type: GrantFiled: June 12, 2019Date of Patent: March 26, 2024Assignee: BEIJING TIDE PHARMACEUTICAL CO., LTD.Inventors: Zhaolu Zhu, Yun Wu, Di Lu, Yanping Zhao, Liying Zhou, Yanan Liu
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Publication number: 20240086231Abstract: This application provides a task migration system and method. The system includes a first terminal and a second terminal. The second terminal runs a first application. The first terminal opens a recent task interface after receiving a user operation, where the recent task interface includes an identifier of the second terminal; after receiving a user operation performed on the identifier of the second terminal, displays, in the recent task interface, at least one task card corresponding to an application run by the second terminal in the background; and after receiving a user operation performed on a first task card corresponding to the first application, runs the first application, and displays a first user interface of the first application.Type: ApplicationFiled: November 15, 2023Publication date: March 14, 2024Applicant: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Kang Chen, Yuhang Song, Hao Huang, Wenjie Huang, Can Jia, Jianhua Zhu, Mingxiang Zhang, Chao Cao, Yanan Zhang, Hongjun Wang, Zhiyan Yang, Chao Xu
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Publication number: 20240076848Abstract: A method for constructing a large-span station by two-wing open type semi-covered excavation and semi-reverse construction, is divided into three stages of excavation. First, excavate a first-stage inner small foundation pit, then excavate a second-stage annular foundation pit within the first-stage retaining piles and outside the range of the first-stage inner small foundation pit, and finally excavate a third-stage semi-covered excavation foundation pit below the first-stage inner small foundation pit and the second-stage annular foundation pit. By setting graded retaining piles, middle upright post piles, middle top plates, local waist beams and local concrete supports in the soil-rock combination strata, so that the force transfer between the foundation pit enclosure and the station main body structures and the underlying rock layer is clear and reliable, and a stable frame structure is achieved.Type: ApplicationFiled: July 24, 2023Publication date: March 7, 2024Applicants: Beijing Urban Construction Design&Development Group Co., LimitedInventors: Fucai HUA, Gang LEI, Zhihui YANG, Jianye ZHU, Liang ZHANG, Ning LI, Yanan DONG, Ningning LI
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Publication number: 20240073313Abstract: In accordance with an embodiment, an application display method includes: starting an application on an electronic device; detecting a switching operation of switching a screen orientation of the electronic device from a portrait orientation to a landscape orientation; in response to detecting the switching operation, changing a window orientation of display resource information of the application to the portrait orientation; and sending the changed display resource information to the application, so that the application loads a portrait layout of an application window in the landscape orientation.Type: ApplicationFiled: December 31, 2021Publication date: February 29, 2024Inventors: Guangjun Chen, Bo Wang, Pei Zhu, Zhangliang Xiong, Yanan Zhang
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Patent number: 11485722Abstract: The present invention discloses a cyclopenta[c]chromene compound and a preparation method thereof. A chalcone compound as a reactant, A cationic rare earth metal compound Ln(CH3CN)9]3+[(AlCl4)3]3?.CH3CN as a catalyst, and 2-naphthalenethiol as an accelerator, react in an organic solvent to prepare the cyclopenta[c]-chromene compound. Ln represents a positive trivalent rare earth metal ion, which is selected from the group consisting of La, Nd, Sm, Gd, and Yb. The starting materials are easy obtained, the reaction process is simple, and the yield of the target product is high, up to 85%.Type: GrantFiled: January 31, 2021Date of Patent: November 1, 2022Assignee: SOOCHOW UNIVERSITYInventors: Fan Xu, Xiaoyou Ding, Dandan Li, Yanan Zhu, Zhigang Yao
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Patent number: 11358945Abstract: The present invention discloses a method for preparing a cyclopenta[c]chromene compound. A cationic rare earth compound [Ln(CH)3CN)9]3+[(AlCl4)3]3?.CH3CN is used as a catalyst, and p-methyl thiophenol is used as an accelerator for a catalytic reaction of a chalcone compound so as to prepare a product; and Ln, contained in the catalyst, represents a positive trivalent rare earth metal ion and is selected from one of La, Nd, Sm, Gd and Yb. According to the method, the starting materials are easy to obtain, the reaction process is simple, the catalyst usage is low, the catalyst is universally applicable to various substituted 2-hydroxy chalcones, and the obtained cyclopenta[c]chromene compound has not been reported. The catalyst synthesis method is simple and easy to obtain, and the yield of the target product is high.Type: GrantFiled: January 31, 2021Date of Patent: June 14, 2022Assignee: SOOCHOW UNIVERSITYInventors: Fan Xu, Dandan Li, Xiaoyou Ding, Yanan Zhu, Zhigang Yao
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Patent number: 11322701Abstract: A high dielectric constant composite material and method for preparing organic thin film transistor using the material as dielectric. The method includes: using sol-gel method, hydrolyzing terminal group-containing silane coupling agent to form functional terminal group-containing silica sol, cross-linked with organic polymer to form composite sol as material of dielectric of organic thin film transistor; forming film by solution method such as spin coating, dip coating, inkjet printing, 3D printing, etc., forming dielectric after curing; preparing semiconductor and electrode respectively to prepare organic thin film transistor device, which, based on composite dielectric material, has mobility of 5 cm2/V·s, exceeding that of using SiO2, having low threshold voltage and no hysteresis effect. Compared with traditional processes like SiO2 thermal oxidation, above method has advantages of simple process, low cost, suitable for large-area preparation, with great market application value.Type: GrantFiled: September 6, 2017Date of Patent: May 3, 2022Assignee: PEKING UNIVERSITY SHENZHEN GRADUATE SCHOOLInventors: Hong Meng, Jupeng Cao, Lijia Yan, Yu He, Xiaoyun Wei, Yanan Zhu, Ting Li
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Publication number: 20210147377Abstract: The present invention discloses a method for preparing a cyclopenta[c]chromene compound. A cationic rare earth compound [Ln(CH)3CN)9]3+[(AlCl4)3]3?.CH3CN is used as a catalyst, and p-methyl thiophenol is used as an accelerator for a catalytic reaction of a chalcone compound so as to prepare a product; and Ln, contained in the catalyst, represents a positive trivalent rare earth metal ion and is selected from one of La, Nd, Sm, Gd and Yb. According to the method, the starting materials are easy to obtain, the reaction process is simple, the catalyst usage is low, the catalyst is universally applicable to various substituted 2-hydroxy chalcones, and the obtained cyclopenta[c]chromene compound has not been reported. The catalyst synthesis method is simple and easy to obtain, and the yield of the target product is high.Type: ApplicationFiled: January 31, 2021Publication date: May 20, 2021Inventors: Fan XU, Dandan LI, Xiaoyou DING, Yanan ZHU, Zhigang YAO
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Publication number: 20210147376Abstract: The present invention discloses a cyclopenta[c]chromene compound and a preparation method thereof. A chalcone compound as a reactant, A cationic rare earth metal compound Ln(CH3CN)9]3+[(AlCl4)3]3?.CH3CN as a catalyst, and 2-naphthalenethiol as an accelerator, react in an organic solvent to prepare the cyclopenta[c]-chromene compound. Ln represents a positive trivalent rare earth metal ion, which is selected from the group consisting of La, Nd, Sm, Gd, and Yb. The starting materials are easy obtained, the reaction process is simple, and the yield of the target product is high, up to 85%.Type: ApplicationFiled: January 31, 2021Publication date: May 20, 2021Inventors: Fan XU, Xiaoyou DING, Dandan LI, Yanan ZHU, Zhigang YAO
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Publication number: 20200106034Abstract: A high dielectric constant composite material and method for preparing organic thin film transistor using the material as dielectric. The method includes: using sol-gel method, hydrolyzing terminal group-containing silane coupling agent to form functional terminal group-containing silica sol, cross-linked with organic polymer to form composite sol as material of dielectric of organic thin film transistor; forming film by solution method such as spin coating, dip coating, inkjet printing, 3D printing, etc., forming dielectric after curing; preparing semiconductor and electrode respectively to prepare organic thin film transistor device, which, based on composite dielectric material, has mobility of 5 cm2/V·s, exceeding that of using SiO2, having low threshold voltage and no hysteresis effect. Compared with traditional processes like SiO2 thermal oxidation, above method has advantages of simple process, low cost, suitable for large-area preparation, with great market application value.Type: ApplicationFiled: September 6, 2017Publication date: April 2, 2020Applicant: PEKING UNIVERSITY SHENZHEN GRADUATE SCHOOLInventors: Hong MENG, Jupeng CAO, Lijia YAN, Yu HE, Xiaoyun WEI, Yanan ZHU, Ting LI
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Patent number: 10287550Abstract: Embodiments of chemically defined cell culture media containing nutrients and growth factors free of any serum for culturing cells such as mesenchymal stem cells and methods of using embodiments of the cell culture medium for expanding cell populations such as mesenchymal stem cells while maintaining a pluripotent phenotype and methods of inducing chondrogenesis and osteogenesis of mesenchymal stem cells by admixing differentiation factors into embodiments of the cell culture medium.Type: GrantFiled: May 27, 2016Date of Patent: May 14, 2019Assignee: StemRD, Inc.Inventors: Songzhu An, Yanan Zhu
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Publication number: 20160281060Abstract: Embodiments of chemically defined cell culture media containing nutrients and growth factors free of any serum for culturing cells such as mesenchymal stem cells and methods of using embodiments of the cell culture medium for expanding cell populations such as mesenchymal stem cells while maintaining a pluripotent phenotype and methods of inducing chondrogenesis and osteogenesis of mesenchymal stem cells by admixing differentiation factors into embodiments of the cell culture medium.Type: ApplicationFiled: May 27, 2016Publication date: September 29, 2016Applicant: StemRD, Inc.Inventors: Songzhu An, Yanan Zhu
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Publication number: 20130089928Abstract: Embodiments of chemically defined cell culture media containing nutrients and growth factors free of any serum for culturing cells such as mesenchymal stem cells and methods of using embodiments of the cell culture medium for expanding cell populations such as mesenchymal stem cells while maintaining a pluripotent phenotype and methods of inducing chondrogenesis and osteogenesis of mesenchymal stem cells by admixing differentiation factors into embodiments of the cell culture medium.Type: ApplicationFiled: June 16, 2011Publication date: April 11, 2013Inventors: Songzhu An, Yanan Zhu
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Publication number: 20120009587Abstract: A recombinant adenovirus target-oriented co-expressing human p53 variant and p53AIP1 is disclosed, which is inserted an expression cassette co-expressing human p53 variant and p53AIP1 in E1 deletion region of the adenovirus. The expression cassette consists of tumor specific promoter, human p53 variant, internal ribosome entry site (IRES), human p53AIP1, and SV40.Type: ApplicationFiled: August 31, 2007Publication date: January 12, 2012Inventors: Shangwu Wang, Yanan Zhu