Patents by Inventor Zhenghao Li
Zhenghao 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).
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Publication number: 20230345641Abstract: The present disclosure provides a method and a system for manufacturing a flexible transparent conductive film with an embedded metal material. The method comprises the steps of sequentially printing metal nanowire grids and metal grids with a large aspect ratio on a printing substrate through an electric field driven micro-nano 3D printing method, and forming a composite conductive electrode of the metal grids and the metal nanowire grids; performing conductive treatment on the composite conductive electrode to obtain an electrode material; and embedding the electrode material into a photoresist, separating the photoresist embedded with the electrode material from the printing substrate, and removing the printing substrate to obtain a conductive film, wherein the metal nanowire grids are formed by printing the metal nanowires, and the metal grids with a large aspect ratio are formed by printing nano metal paste.Type: ApplicationFiled: December 24, 2020Publication date: October 26, 2023Applicants: QINGDAO UNIVERSITY OF TECHNOLOGY, QINGDAO 5D INTELLIGENT ADDITIVE MANUFACTURING TECHNOLOGY CO., LTD.Inventors: Xiaoyang ZHU, Ximeng QI, Hongbo LAN, Hongke LI, Zhenghao LI, Quan XU, Jiawei ZHAO
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Patent number: 11421786Abstract: A magnetic fluid sealing device for an oscillating shaft includes a housing, the oscillating shaft, a first seal, a second seal, and a magnetic source. The housing includes a ball head, and a ball hinge is arranged within the housing. The oscillating shaft is swingable with the ball hinge as a center. The first seal and the second seal are arranged on both sides of the ball head. The first seal includes a first toothed ring, and the second seal includes a second toothed ring. Magnetic fluid is filled at sealing gaps between the first and second toothed rings and the ball head. The magnetic source generates a magnetic field along an axial direction of the oscillating shaft.Type: GrantFiled: December 10, 2021Date of Patent: August 23, 2022Assignee: TSINGHUA UNIVERSITYInventors: Decai Li, Zhenghao Li
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Publication number: 20220205543Abstract: A magnetic fluid sealing device for an oscillating shaft includes a housing, the oscillating shaft, a first seal, a second seal, and a magnetic source. The housing includes a ball head, and a ball hinge is arranged within the housing. The oscillating shaft is swingable with the ball hinge as a center. The first seal and the second seal are arranged on both sides of the ball head. The first seal includes a first toothed ring, and the second seal includes a second toothed ring. Magnetic fluid is filled at sealing gaps between the first and second toothed rings and the ball head. The magnetic source generates a magnetic field along an axial direction of the oscillating shaft.Type: ApplicationFiled: December 10, 2021Publication date: June 30, 2022Inventors: Decai LI, Zhenghao LI
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Patent number: 11251534Abstract: An antenna radiates signals in Band41 whose center frequency is ?1 and Band42 whose center frequency is ?2. A medium substrate is used as a carrier of a top radiating element, a phase inversion unit, and a bottom radiating element; an end of the top radiating element is connected to an end of the phase inversion unit; the other end of the phase inversion unit is connected to an end of the bottom radiating element, a length of the phase inversion unit is 3?2/2, and the length of the phase inversion unit is greater than ?1/2; and the phase inversion unit includes at least two current phase inversion points, a part between the at least two current phase inversion points does not produce radiation, and the top radiating element and the bottom radiating element horizontally radiate the signal in the Band41 and the signal in the Band42 omnidirectionally.Type: GrantFiled: August 23, 2018Date of Patent: February 15, 2022Assignee: Huawei Technologies Co., Ltd.Inventors: Junhong Zhang, Zhenghao Li, Shuhui Sun
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Publication number: 20220016308Abstract: A Delivery System for delivery of an Active Component is provided. The Delivery System comprises a Delivery Matrix and an Active Component. The Delivery Matrix has one or both of (i) a Cationic Component; and (ii) a Matrix Forming Substance. The Cationic Component has one or both of: (i) a cationic polymer or cationic copolymer, and (ii) a positively charged non-polymeric compound or composition. The Active Component comprises a cationic bioactive. The Delivery Matrix has a mEq amount of positive charge which is equal to or exceeds the mEq amount of positive charge of the Active Component. The Delivery Matrix may comprise chitosan, or other biopolymers, synthetic polymers, matrix polymers and large molecules, which themselves are matrix forming, or are combined with a Matrix Forming Substance and one or more other Cationic Components to form the positively charged Delivery Matrix.Type: ApplicationFiled: October 30, 2018Publication date: January 20, 2022Applicant: Allvivo Vascular, Inc.Inventors: Jennifer A Neff, Danir Franisovich Bayramov, Zhenghao Li, Esha A Patel
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Patent number: 11215286Abstract: The present disclosure discloses a magnetic liquid sealing device adapted to axial and radial displacements of connection, which includes: an end cover; a rubber-sealing-ring equipped first clamping plate fixed on the end cover by a first screw and a second screw; a rubber-sealing-ring equipped second clamping plate installed in a groove of the end cover; a fundamental sealing structure fixed on the rubber-sealing-ring equipped second clamping plate by a third screw and a fourth screw, so as to be isolated from the end cover by the rubber-sealing-ring equipped first clamping plate and the rubber-sealing-ring equipped second clamping plate. The device isolates the connected component from the magnetic liquid sealing structure by the two clamping plates, such that the axial and radial deformations and displacements of the connected component will not be loaded on parts in magnetic liquid sealing structure, prolonging the service life of the magnetic liquid sealing.Type: GrantFiled: July 4, 2018Date of Patent: January 4, 2022Assignee: TSINGHUA UNIVERSITYInventors: Decai Li, Siyu Chen, Xiao Liu, Qian Li, Rui Sun, Jixian Yang, Zhenghao Li
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Patent number: 11174947Abstract: A magnetic liquid sealing device (100) with a heat conductive rod and a heat dissipating jacket includes: a shaft casing (1), a rotating shaft (2), two bearings (3), two pole shoes (4), a permanent magnet (5), a heat conductive rod (6) and a heat dissipating jacket (7). The rotating shaft (2) is rotatably arranged in the shaft casing (1), two bearings (3) and two pole shoes (4) are fitted over the rotating shaft (2), and the two pole shoes (4) are located between the two bearings (3). The permanent magnet (5) is fitted over the rotating shaft (2) and is located between the two pole shoes (4). The heat conductive rod (6) is inserted in the pole shoe (4), the heat dissipating jacket (7) is fitted over the shaft casing (2), and the heat conductive rod (6) is connected with the heat dissipating jacket (7) through a connecting member (11).Type: GrantFiled: January 24, 2019Date of Patent: November 16, 2021Assignee: TSINGHUA UNIVERSITYInventors: Decai Li, Jixian Yang, Siyu Chen, Qian Li, Rui Sun, Xiao Liu, Zhenghao Li
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Publication number: 20210123530Abstract: A magnetic liquid sealing device (100) with a heat conductive rod and a heat dissipating jacket includes: a shaft casing (1), a rotating shaft (2), two bearings (3), two pole shoes (4), a permanent magnet (5), a heat conductive rod (6) and a heat dissipating jacket (7). The rotating shaft (2) is rotatably arranged in the shaft casing (1), two bearings (3) and two pole shoes (4) are fitted over the rotating shaft (2), and the two pole shoes (4) are located between the two bearings (3). The permanent magnet (5) is fitted over the rotating shaft (2) and is located between the two pole shoes (4). The heat conductive rod (6) is inserted in the pole shoe (4), the heat dissipating jacket (7) is fitted over the shaft casing (2), and the heat conductive rod (6) is connected with the heat dissipating jacket (7) through a connecting member (11).Type: ApplicationFiled: January 24, 2019Publication date: April 29, 2021Inventors: Decai LI, Jixian YANG, Siyu CHEN, Qian LI, Rui SUN, Xiao LIU, Zhenghao LI
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Patent number: 10989308Abstract: A sealing device with convertible magnetic sealing medium includes a housing with an accommodation cavity formed therein, a rotary shaft rotatably disposed in the accommodation cavity, a first pole piece disposed on the rotary shaft, a second pole piece fitted over the rotary shaft, and a permanent magnet fitted over the rotary shaft between the first pole piece and the second pole piece. The rotary shaft has a first blind hole, a second blind hole, a first via hole and a second via hole. A plurality of first pole teeth are provided in an inner circumferential wall of the first pole piece and a plurality of second pole teeth are provided in an inner circumferential wall of the second pole piece. Magnetic powder is provided between a top surface of each of the first and second pole tooth and the outer circumferential surface of the rotary shaft.Type: GrantFiled: October 20, 2020Date of Patent: April 27, 2021Assignee: Tsinghua UniversityInventors: Decai Li, Zhenghao Li
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Publication number: 20200343643Abstract: An antenna radiates signals in Band41 whose center frequency is ?1 and Band42 whose center frequency is ?2. A medium substrate is used as a carrier of a top radiating element, a phase inversion unit, and a bottom radiating element; an end of the top radiating element is connected to an end of the phase inversion unit; the other end of the phase inversion unit is connected to an end of the bottom radiating element, a length of the phase inversion unit is 3?2/2, and the length of the phase inversion unit is greater than ?1/2; and the phase inversion unit includes at least two current phase inversion points, a part between the at least two current phase inversion points does not produce radiation, and the top radiating element and the bottom radiating element horizontally radiate the signal in the Band41 and the signal in the Band42 omnidirectionally.Type: ApplicationFiled: August 23, 2018Publication date: October 29, 2020Inventors: Junhong Zhang, Zhenghao Li, Shuhui Sun
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Publication number: 20200278031Abstract: The present disclosure discloses a magnetic liquid sealing device adapted to axial and radial displacements of connection, which includes: an end cover; a rubber-sealing-ring equipped first clamping plate fixed on the end cover by a first screw and a second screw; a rubber-sealing-ring equipped second clamping plate installed in a groove of the end cover; a fundamental sealing structure fixed on the rubber-sealing-ring equipped second clamping plate by a third screw and a fourth screw, so as to be isolated from the end cover by the rubber-sealing-ring equipped first clamping plate and the rubber-sealing-ring equipped second clamping plate. The device isolates the connected component from the magnetic liquid sealing structure by the two clamping plates, such that the axial and radial deformations and displacements of the connected component will not be loaded on parts in magnetic liquid sealing structure, prolonging the service life of the magnetic liquid sealing.Type: ApplicationFiled: July 4, 2018Publication date: September 3, 2020Inventors: Decai LI, Siyu CHEN, Xiao LIU, Qian LI, Rui SUN, Jixian YANG, Zhenghao LI
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Patent number: 10680311Abstract: A communications terminal includes a mainboard, a conductor bezel, a first conductor part, and a second conductor part, where a first location on the conductor bezel is electrically connected to a ground terminal on the mainboard, a second location on the conductor bezel is electrically connected to a ground terminal on the mainboard, the second conductor part is electrically connected to a fourth location on the conductor bezel, and a radio frequency port on the mainboard is electrically connected to a third location on the conductor bezel using the first conductor part; and the fourth location and the third location on the conductor bezel are between the first location and the second location. The communications terminal is conducive to reducing antenna assembly complexity and reducing manufacturing costs.Type: GrantFiled: August 30, 2014Date of Patent: June 9, 2020Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Shuhui Sun, Zhenghao Li, Huiliang Xu, Yi Fan, Bo Meng, Dongxing Tu
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Publication number: 20170373372Abstract: A communications terminal includes a mainboard, a conductor bezel, a first conductor part, and a second conductor part, where a first location on the conductor bezel is electrically connected to a ground terminal on the mainboard, a second location on the conductor bezel is electrically connected to a ground terminal on the mainboard, the second conductor part is electrically connected to a fourth location on the conductor bezel, and a radio frequency port on the mainboard is electrically connected to a third location on the conductor bezel using the first conductor part; and the fourth location and the third location on the conductor bezel are between the first location and the second location. The communications terminal is conducive to reducing antenna assembly complexity and reducing manufacturing costs.Type: ApplicationFiled: August 30, 2014Publication date: December 28, 2017Inventors: Shuhui Sun, Zhenghao Li, Huiliang Xu, Yi Fan, Bo Meng, Dongxing Tu
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Patent number: 9847580Abstract: The present invention disclose a printed antenna, so as to increase power and a frequency band width of an antenna. The printed antenna includes a printed circuit board, an antenna pattern, and a signal feed-in point, where the antenna pattern is printed on a front surface of the printed circuit board, and the antenna pattern includes a first antenna pattern, a second antenna pattern, and a third antenna pattern; the signal feed-in point is connected to the second antenna pattern; one end of a side, of the first antenna pattern is connected to the second antenna pattern; the second antenna pattern is vertically laid out in parallel to an edge of the printed circuit board; and the third antenna pattern includes a first part and a second part, and the first part and the second part are arranged in parallel in the non-closed rectangle.Type: GrantFiled: December 22, 2014Date of Patent: December 19, 2017Assignee: HUAWEI DEVICE CO., LTD.Inventors: Wen Wang, Qing Liu, Yao Lan, Zhenghao Li, Lintao Jiang
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Patent number: 9825366Abstract: A printed circuit board antenna and a printed circuit board are disclosed. The printed circuit board antenna includes a feeding part having at least one first branch; a coupling interdigital part having at least one second branch, where a gap is formed between the first branch and the second branch; a grounding part, where a gap is formed between the grounding part and the feeding part, a gap is formed between the grounding part and the coupling interdigital part, an opening is provided on the grounding part, and a feeding point of the feeding part extends out from the opening. The embodiments of the present invention resolve a problem of relatively low efficiency when high-frequency bandwidth of an antenna is relatively wide, implementing that efficiency meets a product requirement in an entire range of bandwidth.Type: GrantFiled: December 17, 2014Date of Patent: November 21, 2017Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Zhenghao Li, Yao Lan, Lintao Jiang, Jie Qi, Yi Zhang, Yundi Yao
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Publication number: 20150102978Abstract: The present invention disclose a printed antenna, so as to increase power and a frequency band width of an antenna. The printed antenna includes a printed circuit board, an antenna pattern, and a signal feed-in point, where the antenna pattern is printed on a front surface of the printed circuit board, and the antenna pattern includes a first antenna pattern, a second antenna pattern, and a third antenna pattern; the signal feed-in point is connected to the second antenna pattern; one end of a side, of the first antenna pattern is connected to the second antenna pattern; the second antenna pattern is vertically laid out in parallel to an edge of the printed circuit board; and the third antenna pattern includes a first part and a second part, and the first part and the second part are arranged in parallel in the non-closed rectangle.Type: ApplicationFiled: December 22, 2014Publication date: April 16, 2015Inventors: Wen Wang, Qing Liu, Yao Lan, Zhenghao Li, Lintao Jiang
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Publication number: 20150097752Abstract: A printed circuit board antenna and a printed circuit board are disclosed. The printed circuit board antenna includes a feeding part having at least one first branch; a coupling interdigital part having at least one second branch, where a gap is formed between the first branch and the second branch; a grounding part, where a gap is formed between the grounding part and the feeding part, a gap is formed between the grounding part and the coupling interdigital part, an opening is provided on the grounding part, and a feeding point of the feeding part extends out from the opening. The embodiments of the present invention resolve a problem of relatively low efficiency when high-frequency bandwidth of an antenna is relatively wide, implementing that efficiency meets a product requirement in an entire range of bandwidth.Type: ApplicationFiled: December 17, 2014Publication date: April 9, 2015Inventors: Zhenghao Li, Yao Lan, Lintao Jiang, Jie Qi, Yi Zhang, Yundi Yao
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Patent number: 8964915Abstract: A method and an apparatus are provided for improving a communication rate, which are used in a terminal working in a multiple-input multiple-output (MIMO) state. The method includes: obtaining strength of a first signal received in a first path connected to a first antenna and strength of a second signal received in a second path connected to a second antenna; and adjusting the first path or/and the second path according to a difference between the strength of the first signal and the strength of the second signal, so as to reduce an unbalance degree between the first path and the second path, thereby improving the communication rate. By adopting the present invention, improvement of a rate of an antenna may be achieved by adjusting a balance between the first and second paths.Type: GrantFiled: December 31, 2013Date of Patent: February 24, 2015Assignee: Huawei Device Co., Ltd.Inventors: Heping Zhang, Zhenghao Li, Zhongying Long, Dingjie Wang, Zhaoliang Yang, Dongxing Tu
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Publication number: 20140112422Abstract: A method and an apparatus are provided for improving a communication rate, which are used in a terminal working in a multiple-input multiple-output (MIMO) state. The method includes: obtaining strength of a first signal received in a first path connected to a first antenna and strength of a second signal received in a second path connected to a second antenna; and adjusting the first path or/and the second path according to a difference between the strength of the first signal and the strength of the second signal, so as to reduce an unbalance degree between the first path and the second path, thereby improving the communication rate. By adopting the present invention, improvement of a rate of an antenna may be achieved by adjusting a balance between the first and second paths.Type: ApplicationFiled: December 31, 2013Publication date: April 24, 2014Applicant: Huawei Device Co., Ltd.Inventors: Heping Zhang, Zhenghao Li, Zhongying Long, Dingjie Wang, Zhaoliang Yang, Dongxing Tu