Patents by Inventor Tao Liu

Tao 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: 20230393312
    Abstract: A light control film comprising a light input surface and a light output surface opposite the light input surface; alternating transmissive regions and absorptive regions disposed between the light input surface and the light output surface, wherein each absorptive region has an aspect ratio of at least 30, and wherein each transmissive region has a first refractive index; and a plurality of low index layers, wherein each low index layer is disposed between each transmissive region and an adjacent absorptive region, and wherein each low index layer has a second refractive index less than the first refractive index of each transmissive region.
    Type: Application
    Filed: October 18, 2021
    Publication date: December 7, 2023
    Inventors: Raymond J. Kenney, Tao Liu, Kevin W. Gotrik, Caleb T. Nelson, Nicholas A. Johnson, Daniel J. Schmidt
  • Publication number: 20230391907
    Abstract: A copolymer contains, based on the total amount of structural units of the copolymer, 90-99 mol % of propylene structural units and 1-10 mol % of butene structural units. The xylene solubles content of the copolymer is less than or equal to 4 wt %, and preferably less than or equal to 3 wt %. The propylene-butene copolymer is substantially free of fraction having a molecular weight lower than 1000. The copolymer has a melt flow index of greater than or equal to 20 g/10 min as measured at 230° C. under a load of 2.16 kg. The propylene-butene copolymer has a high melt flow index and few xylene solubles, and does not contain a phthalate-type plasticizer, and can be used in fields such as food and medical and health services.
    Type: Application
    Filed: October 15, 2021
    Publication date: December 7, 2023
    Inventors: Jin ZHAO, Junling ZHOU, Xianzhi XIA, Yuexiang LIU, Tao LIU, Yongtai LING, Weili LI, Futang GAO, Long CHEN, Yang TAN, Chunhong REN
  • Publication number: 20230381728
    Abstract: A catalytic reaction unit has a plurality of catalyst bed layers arranged vertically, each of the catalyst bed layers being filled with a solid catalyst, and an inclined surface on the upper part of the corresponding solid catalyst arranged between adjacent catalyst bed layers; a liquid phase feeding subunit arranged above the topmost catalyst bed layer, and the liquid phase feed is guided by the inclined surface to sequentially enter each catalyst bed layer from top to bottom; a gas phase feeding subunit arranged between the catalyst bed layer of an upper layer and the inclined surface of the next layer, and a gas phase channel relatively isolated from the gas phase feeding subunit. The gas phase product generated after the gas-phase feed and the liquid phase feed react in the catalyst bed layer directly enters the gas phase channel.
    Type: Application
    Filed: October 21, 2021
    Publication date: November 30, 2023
    Inventors: Yuzhuo ZHAO, Tao LIU, Bingbing GUO, Xiaobing HUANG, Genhai XUAN, Tong XU, Jingjing WANG
  • Patent number: 11828972
    Abstract: An optical system includes an extended illumination source configured to emit light from an extended emission surface thereof and a light redirecting layer disposed on the extended emission surface. The light redirecting layer has a structured major surface that includes a regular array of light redirecting structures, each light redirecting structure including a plurality of facets; and a plurality of discrete spaced apart window segments. The optical system includes a plurality of reflective segments where each reflective segment is disposed on a corresponding window segment. For substantially normally incident light, each reflective segment has a total: average optical reflectance of at least 30% in a visible wavelength range extending from about 420 nm to about 650 nm; and optical transmittance of at least 10% for at least one infrared wavelength in an infrared wavelength range extending from about 800 nm to about 1200 nm.
    Type: Grant
    Filed: October 2, 2020
    Date of Patent: November 28, 2023
    Assignee: 3M Innovative Properties Company
    Inventors: Tao Liu, Gary T. Boyd, David A. Rosen, Bharat R. Acharya, Kevin W. Gotrik, David J. Rowe, Caleb T. Nelson
  • Publication number: 20230373912
    Abstract: The present disclosure belongs to polymercaptan compounds and application fields thereof, and particularly relates to a polymercaptan compound and a preparation method thereof, a curing agent, a resin composition, an adhesive and a sealant. The polymercaptan compound is represented by formula (I), wherein R1, R2, R3, R5, R7 and R8 are each independently selected from one of a hydrogen atom, an alkyl group with 1-5 carbon atoms and an alkoxy group with 1-5 carbon atoms, R4 and R6 are each independently selected from an alkylene group with 1-5 carbon atoms, and m and n are each independently 0, 1, 2 or 3.
    Type: Application
    Filed: August 19, 2022
    Publication date: November 23, 2023
    Applicant: WELDTONE TECHNOLOGY CO., LTD
    Inventors: Changjing CHEN, Tao LIU, Hongteng LIN, Shuai LI
  • Publication number: 20230374242
    Abstract: Provided are a dielectric material and a method for manufacturing the same. The dielectric material includes: subjecting a foamed sphere obtained by a primary foaming to a second foaming in a second moulding chamber filled with CO2 at a second temperature in the range of 20° C. below Tm to 5° C. below Tm and under a second pressure of 15-20 MPa for 30-3600 min to obtain the dielectric material, wherein the primary foaming comprises specific steps of: foaming a foaming material sphere with a diameter of 20-800 mm in a first moulding chamber filled with CO2 at a first temperature in the range of 80° C. below Tm to 20° C. below Tm and under a first pressure of 15-20 MPa to obtain the foamed sphere. Further provided is a dielectric material manufactured by the method above.
    Type: Application
    Filed: March 23, 2022
    Publication date: November 23, 2023
    Inventors: Ling ZHAO, Yichong CHEN, Tao LIU, Shun YAO, Yijie LING, Zhimei XU, Dongdong HU
  • Patent number: 11821518
    Abstract: A soluble metal sealing ring with a controllable dissolution rate and preparation process thereof include an aluminum alloy sealing ring matrix and a composite coating coated on an outer surface of the aluminum alloy sealing ring matrix whose standard electrode potential is greater than ?0.3 volts (V). The preparation process includes: (1) preparing a high-plastic aluminum alloy; (2) preparing the aluminum alloy sealing ring matrix by machining; (3) annealing the aluminum alloy sealing ring matrix; (4) mixing raw materials of the composite coating evenly; (5) preparing the composite coating on an outer surface of the aluminum alloy sealing ring matrix; (6) preparing holes. The soluble metal sealing ring solves problem that good sealing performance and good dissolving performance are difficult to obtain simultaneously in the existing product, and has advantages of good sealing performance, controllable dissolving rate, no blockage and others.
    Type: Grant
    Filed: January 17, 2023
    Date of Patent: November 21, 2023
    Assignee: SOUTHWEST PETROLEUM UNIVERSITY
    Inventors: Xiaohong Wang, Yangang Jiang, Jianchun Guo, Tao Liu, Shilei Xu, Zishuo Li, Yuanhua Lin
  • Patent number: 11822796
    Abstract: A method includes detecting a power-up event associated with a memory sub-system comprising a plurality of blocks of memory cells having blocks of memory cells associated therewith, responsive to detecting the power-up event and prior to receipt of signaling indicative of a host initiation sequence, determining that a block of memory cells associated with a respective block among the plurality of blocks of memory cells is an open virtual block of memory cells, determining that the respective block associated with the open virtual block of memory cells exhibits greater than a threshold health characteristic value, and selectively performing a media management operation of a respective block of memory cells associated with the open virtual block of memory cells in response to the determination that the respective block exhibits greater than the threshold health characteristic value.
    Type: Grant
    Filed: July 5, 2022
    Date of Patent: November 21, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Tao Liu, Xiangang Luo
  • Publication number: 20230359132
    Abstract: Disclosed are a vertical motion protection method and device based on a dual-stage motion system of a photolithography machine. The method comprises: according to a distance between measured points and reference points of the eddy current sensor and coordinates of the reference points of the eddy current sensor, calculating coordinates of the measured points on a lower surface of the micro-motion stage respectively; calculating a point normal form equation of the micro-motion stage at the current time using measured coordinates of the measured points on the micro-motion stage, then substituting X and Y coordinates of the measured points on the translated micro-motion stage to determine a maximum height of the micro-motion stage at the current time; and comparing the maximum height with a height threshold, if the maximum height exceeds the height threshold, shutting down for protection, or else continuing to operate the system.
    Type: Application
    Filed: March 4, 2021
    Publication date: November 9, 2023
    Inventors: Kaiming YANG, Rong CHENG, Yu ZHU, Ming ZHANG, Sheng LEI, Tao LIU, Sen LU, Xin LI
  • Publication number: 20230350101
    Abstract: An optical film for reducing at least one of sparkle and moire in a display system includes a structured first major surface that, in at least a first cross-section in a first plane substantially orthogonal to the optical film, has a sinusoidal shape having a variable pitch of greater than about 0.5 microns. For a substantially normally incident light and blue, green, and red wavelengths that are at least 50 nm apart from each other and are disposed within respective blue, green, and red wavelength ranges, optical transmissions of the optical film versus transmitted angle for the blue, green and red wavelengths have respective blue, green, and red transmission bands disposed at angles greater than about 1 degree and having respective blue, green, and red full width at half maxima (FWHMs), at least two of which at least partially overlap.
    Type: Application
    Filed: April 25, 2023
    Publication date: November 2, 2023
    Inventors: Gary T. Boyd, David A. Rosen, Tao Liu, Matthew M. Philippi, Brett J. Sitter
  • Publication number: 20230350107
    Abstract: A light control film includes a plurality of substantially parallel optical cavities. Each of the optical cavities has a height H along a thickness direction of the light control film and a minimum lateral dimension W along an in-plane width direction orthogonal to the thickness direction, where H?W. The optical cavities are substantially filled with a liquid including a plurality of light absorbing particles configured to move along the thickness direction in response to one or more applied signals or fields such that the movement along the thickness direction causes each of the optical cavities to transition between a substantially opaque state and a substantially transparent state. A full viewing angle of the light control film increases when the optical cavities transition from the substantially opaque state to the substantially transparent state.
    Type: Application
    Filed: April 19, 2023
    Publication date: November 2, 2023
    Inventors: Kevin W. Gotrik, Stephen J. Etzkorn, Nicholas A. Johnson, Tao Liu, John J. Sullivan, Bharat R. Acharya
  • Publication number: 20230343835
    Abstract: The technology of this application relates to a high electron mobility transistor including a GaN substrate layer, a barrier layer, a circuit layer, and a field plate that are sequentially stacked. The GaN substrate layer includes a main body layer and a channel layer that are stacked, the channel layer is adjacent to the barrier layer, the circuit layer includes a source, a drain, and a dielectric layer, the dielectric layer is disposed between the source and the drain, the field plate is disposed on a side that is of the dielectric layer and that is away from the barrier layer, an orthographic projection of the field plate on the channel layer is a field plate projection, the channel layer includes a modulation region and a non-modulation region, the non-modulation region surrounds the modulation region, the modulation region and the field plate projection at least partially overlap.
    Type: Application
    Filed: June 14, 2023
    Publication date: October 26, 2023
    Inventors: Zhili ZHANG, Jin RAO, Tao LIU, Haijun LI, Wei LU, Shuiming LI, Cen TANG, Qiang HE, Juncai MA, Chunhua FAN, Yangyi ZHU
  • Publication number: 20230331115
    Abstract: The disclosure relates to the technical field of battery charging and swapping, and in particular, to a control method and system for a battery charging and swap station, a medium, an apparatus, and a battery charging and swap station. The disclosure is intended to solve the problem that a battery charging and swap station is prone to false alarm and halt at a low temperature. To this purpose, the battery charging and swap station in the disclosure includes a battery swap apparatus. The battery swap apparatus includes a locking/unlocking mechanism. The locking/unlocking mechanism is configured to be capable of locking and unlocking a battery locking mechanism through rotation of a locking/unlocking head of the locking/unlocking mechanism.
    Type: Application
    Filed: April 19, 2023
    Publication date: October 19, 2023
    Inventors: Huazhen XU, Feifei ZHENG, Shuai WANG, Zhibin LI, Jiyong ZOU, Tao LIU, Jianglong LUO
  • Publication number: 20230335641
    Abstract: The present application discloses an integrated structure of MOS transistors having different working voltages. A second spacer of a second MOS transistor having a middle second working voltage is formed by adding a third sub-spacer on the basis of a first spacer of a first MOS transistor having a relatively low first working voltage, and the first spacer is formed by stacking a first sub-spacer and a second sub-spacer. The thickness of the second spacer is adjusted via the third sub-spacer, so as to ensure that a GIDL leakage of the second MOS transistor under the second working voltage satisfies a requirement. The present application also discloses a method for manufacturing an integrated structure of MOS transistors having different working voltages.
    Type: Application
    Filed: February 27, 2023
    Publication date: October 19, 2023
    Applicant: Shanghai Huali Intergrated Circuit Corporation
    Inventors: Qi Cheng, Haihua Zou, Zhenxing Yang, Tao Liu, Qiwei Wang
  • Publication number: 20230333279
    Abstract: This invention discloses a model test apparatus and method for shield post-wall grouting and tube sheet uplift under high water pressure conditions, comprising main body box, tension apparatus, shield system, grouting system, ground stress loading system, water injection system, and monitoring system. The main body box comprises the shield shell system and model soil inside. The ground stress loading system and water injection system realize the simulation of the complex underground soil and muddy water environment by applying stress and water pressure to the model soil inside the main box. While the tension apparatus makes the shield shell moving forward, the grouting system injects slurry into the gap between the shield shell and the tube sheet. The integrated model test of visual shield grouting and tube sheet uplift, the real-time multi-physical field responses, and the longitudinal deformation mechanism have been realized and revealed under high water pressure conditions.
    Type: Application
    Filed: April 17, 2023
    Publication date: October 19, 2023
    Applicant: Ocean University of China
    Inventors: Fei Sha, Hao Kong, Tao Liu, Rui Fan, Mingshuai Xi, Shijiu Gu, Meng Bu
  • Publication number: 20230329664
    Abstract: The present disclosure relates to a slip ring assembly. The slip ring assembly may include a first slip ring, a second slip ring, and a transmission component. The transmission component may be configured to facilitate at least one of: data transmission of the first slip ring, data transmission of the second slip ring, power transmission of the first slip ring, or power transmission of the second slip ring.
    Type: Application
    Filed: June 12, 2023
    Publication date: October 19, 2023
    Applicant: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.
    Inventors: Hongtao WANG, Tao LIU, Cheng NI, Li WANG, Hongjun ZHANG, Wei ZHANG, Tuota XING, Buliang SUN, Yansi YANG, Hualing WANG, Shaomin XIAO
  • Publication number: 20230323486
    Abstract: The present invention provides a kit and method for isothermal rapid detection of a SARS-CoV-2 virus nucleic acid.
    Type: Application
    Filed: August 18, 2021
    Publication date: October 12, 2023
    Applicant: SHANGHAI JIAO TONG UNIVERSITY
    Inventors: Yan Feng, Zhonglei Li, Xingyu Ye, Xiang Guo, Jun HUANG, Tao Liu
  • Publication number: 20230328386
    Abstract: An apparatus comprising a light projector, a sensor and a processor. The light projector may be configured to toggle a light pattern. The sensor may be configured to generate pixel data. The processor may be configured to process the pixel data arranged as video frames, extract IR images with the light pattern, IR images without the light pattern and RGB images from the video frames, generate a control signal in response to the IR images with the light pattern and the RGB images, calculate an IR interference measurement in response to the IR images without the light pattern and the RGB images and select a mode of operation for an IR channel control and an RGB channel control in response to the IR interference measurement. The control signal may be configured to adjust an exposure for the sensor.
    Type: Application
    Filed: June 7, 2022
    Publication date: October 12, 2023
    Inventors: Jian Tang, Tao Liu, Jingyang Qiu
  • Publication number: 20230322121
    Abstract: The disclosure relates to the technical field of battery swapping, and in particular to a battery swap control method and system, a medium, an apparatus, and a battery charging and swap station. An objective of the disclosure is to solve a problem that battery swap time is forced to be prolonged due to a fault in a locking process.
    Type: Application
    Filed: April 7, 2023
    Publication date: October 12, 2023
    Inventors: Shuai WANG, Feifei ZHENG, Huazhen XU, Jiyong ZOU, Tao LIU
  • Publication number: 20230313641
    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: Application
    Filed: June 10, 2021
    Publication date: October 5, 2023
    Inventors: Zhimin HOU, Dan HU, Qiang WANG, Yijun ZHOU, Jiang QIAN, Chen CHEN, Tao LIU, Jianfa CI, Wenfeng PANG, Wenjiang TENG