Patents by Inventor Zheng Duan
Zheng Duan 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: 20240417504Abstract: An epoxidized vegetable oil is subjected to a first ring-opening reaction with an acidic catalyst and a ?-mercaptoalcohol compound to obtain a first reaction solution, and then the first reaction solution is subjected to a second ring-opening reaction with a cyclohydrocarbyl methanol compound to obtain the vegetable oil polyol, which adopts novel ring-opening reagents to introduce an antioxidant sulfur-containing fragment into the molecular structure of the vegetable oil polyol in a covalent manner, while also introducing a cyclohydrocarbyl group and retaining a small portion of epoxy groups, thereby ensuring that a polyurethane product has a certain degree of toughness, in addition to relatively good corrosion resistance and oxidation resistance, while guaranteeing the mechanical properties of the polyurethane material.Type: ApplicationFiled: August 29, 2024Publication date: December 19, 2024Applicants: NANJING TECH UNIVERSITY, CHINA CONSTRUCTION INDUSTRIAL & ENERGY ENGINEERING GROUP CO., LTD.Inventors: Kai GUO, Zheng FANG, Yiping HUANG, Wei HE, Hong QIN, Changhai YUE, Chengkou LIU, Fujian LIU, Jindian DUAN, Jingjing HUANG, Jiangkai QIU
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Publication number: 20240405185Abstract: A LED packaging module includes a plurality of LED chips, a wiring layer, and an encapsulant component. The LED chips are spaced apart, each of which includes chip first, chip second, and chip side surfaces, and an electrode unit. The wiring layer is disposed on the chip second surfaces, has first, second, and side wiring layer surfaces, and is divided into a plurality of wiring parts spaced apart. The first wiring layer surface contacts and is electrically connected to the electrode units. The encapsulant component includes first and second encapsulating layers, covers the chip side surfaces, the chip first surfaces, and the side wiring layer surface, and fills gaps among the wiring parts. Each LED chip has a thickness represented by TA, the first encapsulating layer has a thickness represented by TB, and TA and TB satisfy a relationship: TB/TA?1.Type: ApplicationFiled: August 15, 2024Publication date: December 5, 2024Inventors: Zhen-duan LIN, Yanqiu LIAO, Shuning XIN, Weng-Tack WONG, Junpeng SHI, Aihua CAO, Changchin YU, Chi-Wei LIAO, Chen-ke HSU, Zheng WU, Chia-en LEE
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Publication number: 20240361531Abstract: Provided in the present disclosure are a grating structure, a preparation method thereof and a display device. The preparation method of the grating structure includes: forming a plurality of first convex structures arranged in a first direction; and forming a first rubber material at least covering the plurality of first convex structures, and forming the grating structure including a plurality of second convex structures by using convex structures including the first convex structures and the first rubber material, wherein a surface of the first rubber material facing away from the first convex structures is a flat surface, and the convex structures including the first convex structures and the first rubber material are in one-to-one correspondence with the second convex structures, shapes of cross sections of the second convex structures in the first direction are triangles, and the second convex structures have at least one inclined flat surface.Type: ApplicationFiled: May 27, 2022Publication date: October 31, 2024Inventors: Duohui LI, Hong CHEN, Mengya SONG, Dongliang ZHANG, Xiao ZHANG, Zheng DUAN, Kang GUO, Xin GU
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Publication number: 20240351966Abstract: Provided are a class of alkylphenol compounds and a preparation method therefor. Specifically provided are a new alkyl polyphenol compound as represented by chemical formula I, and a preparation method therefor and the use thereof in the treatment of metabolic syndrome.Type: ApplicationFiled: May 11, 2022Publication date: October 24, 2024Inventors: Fajun NAN, Jingya LI, Zheng ZHANG, Yanan DUAN, Yangming ZHANG, Dandan CHEN, Chengqiu DAI
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Patent number: 12109710Abstract: The present disclosure discloses a method and apparatus for motion planning of a robot, a method and apparatus for path planning of a robot, and a method and apparatus for grasping of a robot. The method includes: when the robot operates on an object to be operated, performing, in combination with a space model of a real scene where the object is located, collision detection on the object and a collision subject in the space model; and determining a motion planning scheme for the robot corresponding to a result of the collision detection based on collision sensitivity of the object and collision sensitivity of the collision subject, the motion planning scheme being formed by the robot operating on the object.Type: GrantFiled: January 13, 2022Date of Patent: October 8, 2024Assignee: MECH-MIND ROBOTICS TECHNOLOGIES LTD.Inventors: Xi Li, Xinv Zhu, Youshuang Ding, Tianlan Shao, Wenjie Duan, Bing Liu, Zheng Wang
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Publication number: 20240310289Abstract: Disclosed are a measurement system for micro-mixing and a measurement method thereof. The measurement system comprises a mixing device, a light enhancement unit, an observation unit, an image acquisition unit, a display device and a tracer injection device; the light enhancement unit comprises a light-emitting device, a light-focusing device and a reflecting device; the observation unit comprises an observation window; the image acquisition unit comprises a distortion-free lens and an image acquisition device which are connected in sequence, and a central axis of the distortion-free lens is in alignment with a central axis of the observation window. The measurement method is performed in the measurement system provided by the present application. In the present application, the brightness of visual field is improved, the light interference on target image is shielded off, the process of micro-mixing can be observed in real time, and thereby the micro-mixing efficiency can be evaluated.Type: ApplicationFiled: January 25, 2024Publication date: September 19, 2024Inventors: Chao YANG, Xiaoxia DUAN, Xin FENG, Dingwang HUANG, Jie CHEN, Weipeng ZHANG, Zheng LI, Yuanyuan LI, Zaisha MAO, Minghui XIE
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Patent number: 12080688Abstract: A light-emitting diode (LED) packaging module includes LED chips, a wiring layer, and an encapsulant component. Each of the LED chips includes a chip first surface, a chip second surface, a chip side surface, and an electrode unit. The wiring layer is disposed on the chip second surfaces of the LED chips, and contacts and is electrically connected to the electrode units. The encapsulant component includes a first encapsulating layer that covers the chip side surface, and a second encapsulating layer that covers the wiring layer. The LED chip has a thickness TA, the first encapsulating layer has a thickness TB, in which TB/TA?1.Type: GrantFiled: January 19, 2022Date of Patent: September 3, 2024Assignee: Quanzhou Sanan Semiconductor Technoogy Co., Ltd.Inventors: Zhen-Duan Lin, Yanqiu Liao, Shuning Xin, Weng-Tack Wong, Junpeng Shi, Aihua Cao, Changchin Yu, Chi-Wei Liao, Chen-ke Hsu, Zheng Wu, Chia-en Lee
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Patent number: 11991813Abstract: A consumable cartridge for a plasma arc torch is provided. The consumable cartridge includes an outer component defining a substantially hollow body, an inner component disposed substantially within the hollow body of the outer component, and a hollow region between the rear portion of the inner component and the outer component. The inner component includes a forward portion configured to axially secure and rotatatably engage the outer component to the inner component and a rear portion substantially suspended within the hollow body of the outer component. The rear portion is axially secured and rotatably engaged with the outer component via the forward portion. The hollow region is configured to receive a torch head to enable mating between the rear portion of the inner component and a cathode of the torch head.Type: GrantFiled: May 15, 2019Date of Patent: May 21, 2024Assignee: Hypertherm, Inc.Inventors: Yu Zhang, Zheng Duan, Mahyar Esmaili, Mike Kornprobst, Brett Hansen, Garrett Quillia
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Publication number: 20240012189Abstract: The present application provides a polarizer, a manufacturing method thereof, a display panel and a display apparatus. The polarizer includes an antireflection layer, a first support layer and a grating layer stacked in sequence along a light incidence direction. The grating layer includes a plurality of first grating strips spaced apart. The first support layer includes a plurality of first support strips spaced apart and a plurality of second support strips disposed between any two adjacent first support strips, and the first support strips are disposed corresponding to the first grating strips. The antireflection layer includes a plurality of second grating strips spaced apart, and the second grating strips are disposed corresponding to the first grating strips. The antireflection layer, the first support layer and the grating layer form an optical resonant cavity structure, or, the antireflection layer is configured to absorb light reflected by the grating layer. A display panel includes the polarizer.Type: ApplicationFiled: February 25, 2021Publication date: January 11, 2024Inventors: Duohui LI, Zheng DUAN, Xiao ZHANG, Mengya SONG, Zhen LIU, Yong MA, Kang GUO, Xin GU
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Patent number: 11770891Abstract: A cartridge for an air-cooled plasma arc torch is provided. The cartridge includes a swirl ring having a molded thermoplastic elongated body with a distal end, a proximal end, and a hollow portion configured to receive an electrode. The swirl ring also has a plurality of gas flow openings defined by the distal end of the elongated body and configured to impart a swirling motion to a plasma gas flow for the plasma arc torch. The swirl ring further includes a nozzle retention feature on a surface of the elongated body at the distal end for retaining a nozzle to the elongated body. The cartridge further includes a cap affixed to the proximal end of the elongated body of the swirl ring for substantially closing the proximal end of the elongated body.Type: GrantFiled: May 6, 2019Date of Patent: September 26, 2023Assignee: Hypertherm, Inc.Inventors: Yu Zhang, Zheng Duan, Mahyar Esmaili, Mike Kornprobst, Brett Hansen, Garrett Quillia
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Publication number: 20230271268Abstract: An adapter for a plasma arc torch comprising a torch body is provided. The adapter includes a body defining a longitudinal axis between a proximal end and a distal end and at least one protruding portion extending from the proximal end of the body. The at least one protruding portion is configured to be inserted into a cavity of the torch body to physically engage a switch inside of the cavity. The engagement of the switch is adapted to indicate installation of a consumable component in the plasma arc torch.Type: ApplicationFiled: May 10, 2023Publication date: August 31, 2023Inventors: Yu Zhang, Zheng Duan, Stephen T. Eickhoff, Garrett K. Quillia, Brett Hansen
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Patent number: 11684995Abstract: An adapter for a plasma arc torch comprising a torch body is provided. The adapter includes a body defining a longitudinal axis between a proximal end and a distal end and at least one protruding portion extending from the proximal end of the body. The at least one protruding portion is configured to be inserted into a cavity of the torch body to physically engage a switch inside of the cavity. The engagement of the switch is adapted to indicate installation of a consumable component in the plasma arc torch.Type: GrantFiled: September 29, 2020Date of Patent: June 27, 2023Assignee: Hypertherm, Inc.Inventors: Yu Zhang, Zheng Duan, Stephen T. Eickhoff, Garrett K. Quillia, Brett Hansen
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Patent number: 11477854Abstract: A method for controlling interfacial thermal resistance is provided. The method includes: providing a metallic thermal conductor and a non-metallic thermal conductor, the metallic thermal conductor and the non-metallic thermal conductor are in direct contact with each other to form an interface; and varying an electric field at the interface to modulate the interfacial thermal resistance at the interface.Type: GrantFiled: December 25, 2018Date of Patent: October 18, 2022Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.Inventors: Zheng Duan, Chang-Hong Liu, Shou-Shan Fan
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Patent number: 11432393Abstract: A consumable cartridge for a plasma arc torch is provided. The consumable cartridge includes an outer component defining a substantially hollow body, an inner component disposed substantially within the hollow body of the outer component, and a hollow region between the rear portion of the inner component and the outer component. The inner component includes a forward portion configured to axially secure and rotatatably engage the outer component to the inner component and a rear portion substantially suspended within the hollow body of the outer component. The rear portion is axially secured and rotatably engaged with the outer component via the forward portion. The hollow region is configured to receive a torch head to enable mating between the rear portion of the inner component and a cathode of the torch head.Type: GrantFiled: November 7, 2019Date of Patent: August 30, 2022Assignee: HYPERTHERM, INC.Inventors: Zheng Duan, Stephen T. Eickhoff, Yu Zhang, Jesse A. Roberts, Eric Streit, Brandon Mason, Dennis Kulakowski
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Publication number: 20210136905Abstract: A consumable cartridge for a plasma arc torch includes a cartridge frame having a first end and a second end opposite the first end, the first and second ends defining a longitudinal axis, the second end including a plurality of discrete retaining features. The consumable cartridge includes an electrically conductive contact element secured to the cartridge frame by the plurality of discrete retaining features and translatable up to a predetermined distance within the cartridge frame along the longitudinal axis at the second end, the contact element having a core, a proximal surface, and a distal surface. The proximal surface is shaped to contact a torch plunger of the plasma arc torch upon installation into the plasma arc torch and the distal surface is shaped to contact an electrode of the plasma arc torch during an operation of the plasma arc torch.Type: ApplicationFiled: January 11, 2021Publication date: May 6, 2021Inventors: Yu Zhang, Jesse A. Roberts, Zheng Duan, Michael Scheller, David Agan, Steven Moody, Stephen T. Eickhoff, Garrett K. Quillia
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Patent number: 10912183Abstract: A consumable cartridge for a plasma arc torch includes a cartridge frame having a first end and a second end opposite the first end, the first and second ends defining a longitudinal axis, the second end including a plurality of discrete retaining features. The consumable cartridge includes an electrically conductive contact element secured to the cartridge frame by the plurality of discrete retaining features and translatable up to a predetermined distance within the cartridge frame along the longitudinal axis at the second end, the contact element having a core, a proximal surface, and a distal surface. The proximal surface is shaped to contact a torch plunger of the plasma arc torch upon installation into the plasma arc torch and the distal surface is shaped to contact an electrode of the plasma arc torch during an operation of the plasma arc torch.Type: GrantFiled: February 9, 2018Date of Patent: February 2, 2021Assignee: Hypertherm, Inc.Inventors: Yu Zhang, Jesse A. Roberts, Zheng Duan, Michael Scheller, David Agan, Steven Moody, Stephen T. Eickhoff, Garrett K. Quillia
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Publication number: 20210029814Abstract: An adapter for a plasma arc torch comprising a torch body is provided. The adapter includes a body defining a longitudinal axis between a proximal end and a distal end and at least one protruding portion extending from the proximal end of the body. The at least one protruding portion is configured to be inserted into a cavity of the torch body to physically engage a switch inside of the cavity. The engagement of the switch is adapted to indicate installation of a consumable component in the plasma arc torch.Type: ApplicationFiled: September 29, 2020Publication date: January 28, 2021Inventors: Yu Zhang, Zheng Duan, Stephen T. Eickhoff, Garrett K. Quillia, Brett Hansen
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Patent number: 10866039Abstract: A thermal transistor is provided. The thermal transistor includes a metallic thermal conductor, a non-metallic thermal conductor, and a thermal resistance adjusting unit. The metallic thermal conductor and the non-metallic thermal conductor are contact with each other to form a thermal interface. The thermal resistance adjusting unit is configured to generate an bias voltage U12 between the metallic thermal conductor and the non-metallic thermal conductor.Type: GrantFiled: December 25, 2018Date of Patent: December 15, 2020Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.Inventors: Zheng Duan, Chang-Hong Liu, Shou-Shan Fan
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Patent number: 10859329Abstract: A thermal transistor is provided. The thermal transistor includes a metallic thermal conductor, a non-metallic thermal conductor, and a thermal resistance adjusting unit. The metallic thermal conductor and the non-metallic thermal conductor are contact with each other to form a thermal interface. The thermal resistance adjusting unit is configured to generate an electric field at the thermal interface.Type: GrantFiled: December 25, 2018Date of Patent: December 8, 2020Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.Inventors: Zheng Duan, Chang-Hong Liu, Shou-Shan Fan
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Patent number: RE49153Abstract: A component for a plasma arc torch includes a body portion, a tapered surface on the body portion, the tapered surface including a compressible member that provides a disengagement force relative to the body portion, and an axially disposed surface on the body portion for coupling a mating surface on an adjacent structure of the torch. The component can be a nozzle and/or an electrode.Type: GrantFiled: October 2, 2020Date of Patent: July 26, 2022Assignee: Hypertherm, Inc.Inventors: Jon W. Lindsay, Brent R. Bartlett, Aaron D. Brandt, Zheng Duan, Stephen M. Liebold