Patents by Inventor Lijun Zhang

Lijun Zhang 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).

  • Patent number: 11927491
    Abstract: A self-calibration detection device and a temperature demodulation method oriented to a fiber Raman temperature sensing system. The self-calibration detection device comprises a fiber Raman thermodetector, thermostatic baths, a multi-mode sensing fiber, and a multi-mode reflector. The fiber Raman thermodetector comprises a pulsed laser whose output end is connected to the input end of a WDM. Two output ends of the WDM are respectively connected to input ends of a first and second APDs. Output ends of the first and second APDs are respectively connected to input ends of a first and second LNAs. Output ends of the first and second LNAs are connected to the input end of a data acquisition card whose output end is connected with the input end of a computer. The temperature demodulation method can solve the problems of low temperature measuring accuracy, lower temperature measurement stability and low temperature measurement efficiency.
    Type: Grant
    Filed: May 5, 2019
    Date of Patent: March 12, 2024
    Assignee: TAIYUAN UNIVERSITY OF TECHNOLOGY
    Inventors: Mingjiang Zhang, Jian Li, Jianzhong Zhang, Lijun Qiao, Baoqiang Yan, Yang Xu, Baoquan Jin, Dong Wang, Yu Wang, Yuncai Wang
  • Patent number: 11923621
    Abstract: An electronic device may be provided with a phased antenna array on an antenna module. The array may include low band antennas and high band antennas that radiate at frequencies greater than 10 GHz. The module may include antenna layers, transmission line layers, and ground traces that separate the antenna layers from the transmission line layers. The low band antennas and the high band antennas may have radiators patterned onto the antenna layers. The radiators may be fed by transmission lines on the transmission line layers. The antenna layers may have a dielectric permittivity that is greater than the dielectric permittivity of the transmission line layers. This may serve to reduce the lateral footprint of the low band and high band antennas, which allows the antennas to be interleaved along a common linear axis in the phased antenna array, thereby minimizing the lateral footprint of the antenna module.
    Type: Grant
    Filed: June 3, 2021
    Date of Patent: March 5, 2024
    Assignee: Apple Inc.
    Inventors: Jiangfeng Wu, Siwen Yong, Simon G. Begashaw, Yi Jiang, Lijun Zhang
  • Patent number: 11894608
    Abstract: An electronic device may have a phased antenna array. An antenna in the array may include a rectangular patch element with diagonal axes. The antenna may have first and second antenna feeds coupled to the patch element along the diagonal axes. The antenna may be rotated at a forty-five degree angle relative to other antennas in the array. The antenna may have one or two layers of parasitic elements overlapping the patch element. For example, the antenna may have a layer of coplanar parasitic patches separated by a gap. The antenna may also have an additional parasitic patch that is located farther from the patch element than the layer of coplanar parasitic patches. The additional parasitic patch may overlap the patch element and the gap in the coplanar parasitic patches. The antenna may exhibit a relatively small footprint and minimal mutual coupling with other antennas in the array.
    Type: Grant
    Filed: May 23, 2022
    Date of Patent: February 6, 2024
    Assignee: Apple Inc.
    Inventors: Jiangfeng Wu, Lijun Zhang, Mattia Pascolini, Siwen Yong, Yi Jiang
  • Publication number: 20240012254
    Abstract: The disclosed system may include a support structure, a lens mounted to the support structure, where the lens includes at least one conductive layer that includes conductive material, and an antenna disposed on the support structure within a specified maximum distance from the lens. Various characteristics of the lens or the antenna may be modified to reduce coupling between the antenna and the layer of conductive material in the lens. Various other wearable devices, apparatuses, and methods of manufacturing are also disclosed.
    Type: Application
    Filed: July 11, 2022
    Publication date: January 11, 2024
    Inventors: Javier Rodriguez De Luis, Liang Han, Lijun Zhang, Chia-Ching Lin, Meijiao Li, Jasmine Soria Sears
  • Publication number: 20240002401
    Abstract: A novel imidazothiazole compound as an Autotaxin inhibitor, a pharmaceutical composition including the compound, and a use thereof in a treatment of a disease with a pathological feature of Autotaxin overexpression in a mammal is provided, wherein the compound has a structure of formula (I), or a pharmaceutically acceptable salt, hydrate, solvate, stereoisomer, tautomer, nitrogen oxide, metabolite, prodrug, or mixture thereof; wherein each of R1a, R1c, R2, R3, R6, Cy, Y, Z, and t is defined as described in the present disclosure.
    Type: Application
    Filed: November 15, 2021
    Publication date: January 4, 2024
    Inventors: Qingan ZOU, Jiancun ZHANG, Yanwei CHEN, Lijun ZHANG, Ning KANG, Chen GUO
  • Patent number: 11862838
    Abstract: An electronic device may include a curved cover layer and an antenna. The antenna may include a ground and a resonating element on a curved surface of a substrate. The curved surface may have a curvature that matches that of the cover layer. The resonating element may include first, second, and third arms fed by a feed. The first arm and a portion of the ground may form a loop antenna resonating element. The second arm and the first arm may form an inverted-F antenna resonating element, where a portion of the first arm forms a return path to the antenna ground for the inverted-F antenna resonating element. A gap between the first and second arms may form a distributed capacitance. The third arm may form an L-shaped antenna resonating element. The antenna may have a wide bandwidth from below 2.4 GHz to greater than 9.0 GHz.
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: January 2, 2024
    Assignee: Apple Inc.
    Inventors: Lijun Zhang, Jiangfeng Wu, Mattia Pascolini, Siwen Yong, Yi Jiang
  • Publication number: 20230391744
    Abstract: A novel tetrahydronaphthalene compound is provided, or a stereoisomer, a solvate, a pharmaceutically acceptable salt thereof, or a pharmaceutical composition including the compound, and a use of the compound or the composition for preparing a medicament in prevention and/or treatment of a central nervous system disease, wherein the compound has a structure of formula (I), wherein each of X, Y, Z, W and R is defined as described in the present disclosure.
    Type: Application
    Filed: October 26, 2021
    Publication date: December 7, 2023
    Inventors: Deyao LI, Yiqian ZHOU, Qi GUO, Huajin YOU, Lijun ZHANG, Jiancun ZHANG
  • Publication number: 20230390747
    Abstract: Disclosed is a catalyst useful for producing organic amines by catalytic amination, its preparation and application thereof, wherein the catalyst comprises an inorganic porous carrier containing aluminum and/or silicon and an active metal component supported on the carrier, the active metal component comprises at least one metal selected from the group consisting of Group VIII and Group IB metals, and the carrier has an ammonia adsorption capacity of 0.25 to 0.65 mmol/g, as measured by NH3-TPD test. The catalyst has an improved performance, when used for producing organic amines by catalytic amination.
    Type: Application
    Filed: October 26, 2021
    Publication date: December 7, 2023
    Inventors: Baoliang TIAN, Guoqi TANG, Liangyu XIANG, Xiaorong ZHANG, Guoqing WANG, Hui PENG, Yi YANG, Lijun ZHANG, Chao SONG, Jianzhun JIANG, Yi MAN
  • Publication number: 20230381757
    Abstract: Disclosed are a catalyst useful for producing organic amines by catalytic amination its preparation and application thereof, which catalyst comprising an inorganic porous carrier containing aluminum and/or silicon, and an active metal component supported on the carrier, the active metal component comprising at least one metal selected from Group VIII and Group IB metals, wherein the carrier has an L acid content of 85% or more relative to the total of the L acid and B acid contents. The catalyst shows an improved catalytic performance when used for producing organic amines by catalytic amination.
    Type: Application
    Filed: October 26, 2021
    Publication date: November 30, 2023
    Inventors: Baoliang TIAN, Guoqing WANG, Hui PENG, Guoqi TANG, Liangyu XIANG, Yi YANG, Lijun ZHANG, Chao SONG, Xiaorong ZHANG, Song CHEN, Jing LIU
  • Patent number: 11831368
    Abstract: A wireless communication system comprises a base station and one or more relay docks and transmits directional wave signals between components using high frequency waves, such as millimeter waves. A beam forming decision engine utilizes position information collected from one or more position or motion sensors of a user device to determine a direction in which to form a directional wave signal being transmitted between components of the wireless communication system.
    Type: Grant
    Filed: January 31, 2022
    Date of Patent: November 28, 2023
    Assignee: Apple Inc.
    Inventors: Yi Jiang, Mattia Pascolini, Jiangfeng Wu, Siwen Yong, Lijun Zhang
  • Publication number: 20230340009
    Abstract: The present disclosure relates to compounds for RNA capping and uses thereof, which belong to the technical field of genetic engineering. Compounds of formula I can result in high levels of capping efficiency, and the capped mRNA exhibits a high transcription level and increased expression.
    Type: Application
    Filed: July 3, 2023
    Publication date: October 26, 2023
    Inventors: Jiancun ZHANG, Lijun ZHANG, Yiqian ZHOU, Jiafeng CHEN, Jufu ZHANG, Suyong LI, Yanhui LIU, Chen GUO, Wanjun TANG, Feng WU, Xiaoxi HE, Qi GUO, Huixuan CHEN, Kun WANG, Deyao Li
  • Patent number: 11793283
    Abstract: The present invention relates to a card holder including a card holder body. The card holder body includes a first card clamping plate and a second card clamping plate, and a connecting device is arranged between the first card clamping plate and the second card clamping plate to connect the first card clamping plate and the second card clamping plate; the connecting device causes a relative displacement in a vertical direction between the first card clamping plate and the second card clamping plate to form a freely retractable internal space, thereby accommodating a plurality of cards; and the connecting device includes two connecting members rotationally connected through a shaft, and a first elastic member connected with each connecting member. The first elastic member provides an elastic restoring force for the first card clamping plate and the second card clamping plate to respectively restore to an initial position.
    Type: Grant
    Filed: March 23, 2023
    Date of Patent: October 24, 2023
    Assignee: Shenzhen Jiangda Hardware Products Co., Ltd.
    Inventor: Lijun Zhang
  • Publication number: 20230333376
    Abstract: A head-mounted device may have a head-mounted housing. The head-mounted housing may have rear-facing displays that display images for a user. The images are viewable from eye boxes while the head-mounted device is being worn by the user. A peripheral conductive member may run along a peripheral edge of the front face of the housing. Dielectric-filled gaps may divide the peripheral conductive member into elongated conductive segments. The conductive segments may form antenna resonating elements for antennas on the front face. Radio-frequency transceiver circuitry such as cellular telephone transceiver circuitry may be coupled to the antennas.
    Type: Application
    Filed: February 8, 2023
    Publication date: October 19, 2023
    Inventors: Lijun Zhang, Jiangfeng Wu, Lu Zhang, Mattia Pascolini, Siwen Yong, Yi Jiang
  • Publication number: 20230314592
    Abstract: A head-mounted device may have a head-mounted housing. A radar sensor may be mounted in the housing. The head-mounted housing may have rear-facing displays that display images for a user. The images are viewable from eye boxes while the head-mounted device is being worn by the user. A forward-facing camera may capture real-world image content. The rear-facing displays may be used to display captured real-world image content merged with computer-generated image content. The forward-facing camera and the radar sensor may be mounted under inactive display borders of a forward-facing display. The radar sensor may have a horizontal array of patch antenna elements configured to form a phased antenna array. Communications circuitry in the head-mounted device may use the phased antenna array to transmit and receive wireless communications signals.
    Type: Application
    Filed: February 22, 2023
    Publication date: October 5, 2023
    Inventors: Lijun Zhang, Jiangfeng Wu, Mattia Pascolini, Siwen Yong, Yi Jiang
  • Publication number: 20230313056
    Abstract: An anti-coking equipment, a preparation method therefor, and the use thereof. The preparation method comprises: bringing a low-oxygen partial pressure gas into contact with an equipment for reaction to obtain an anti-coking equipment containing an oxide film on the inner surface, wherein the dew point of the low-oxygen partial pressure gas is -40° C. to 40° C. A dense and stable oxide film is formed on the inner surface of the equipment prepared by the method, which can inhibit or slow down the catalytic coking phenomenon, reduce the degree of equipment carburization, and prolong the service life of the equipment.
    Type: Application
    Filed: June 22, 2021
    Publication date: October 5, 2023
    Inventors: Hongxia WANG, Guoqing WANG, Shenxiang WANG, Jingsheng JIA, Lijun ZHANG
  • Publication number: 20230305321
    Abstract: A head-mounted device may have a head-mounted housing. The head-mounted housing may have displays that display images for a user through lenses. The displays and lenses may be mounted in left and right optical modules. Attachment structures such as magnets may be used to removably attach left and right vision correction lenses to the left and right optical modules, respectively. The images may be viewed from eye boxes through the vision correction lenses while the head-mounted device is being worn by the user. The vision correction lenses and the head-mounted device may be provided with near-field communications antennas. The antennas may be formed from coils that surround corrective lens elements in the vision correction lenses. In the head-mounted device, antennas may be formed from coils surrounding the lenses in the optical modules and/or may include other coil(s).
    Type: Application
    Filed: February 22, 2023
    Publication date: September 28, 2023
    Inventors: Lijun Zhang, Jiangfeng Wu, Mattia Pascolini, Siwen Yong, Yi Jiang
  • Publication number: 20230305302
    Abstract: A head-mounted device such as a pair of glasses may have display systems. The display systems may present images to eye boxes for viewing by a user. The glasses may have clear lenses through which real-world objects may be viewed from the eye boxes. The glasses may have a metal frame that surrounds the lenses and may have temples that are coupled to the frame using hinges. Radio-frequency transceiver circuitry such as cellular telephone transceiver circuitry may be coupled to one or more antennas in the head-mounted device. The antennas may have antenna resonating elements formed by placing dielectric-filled gaps in the metal frame to divide the frame into segments. Antenna resonating elements formed from segments of the metal frame may be coupled to the radio-frequency transceiver circuitry using transmission lines.
    Type: Application
    Filed: February 17, 2023
    Publication date: September 28, 2023
    Inventors: Lijun Zhang, Jiangfeng Wu, Lu Zhang, Mattia Pascolini, Siwen Yong, Yi Jiang
  • Publication number: 20230295201
    Abstract: The present disclosure provides compounds for treating a variety of diseases, such as respiratory syncytial virus (RSV), HRV, hMPV, ebola, Zika, West Nile, Dengue, and HCV.
    Type: Application
    Filed: February 21, 2023
    Publication date: September 21, 2023
    Inventors: Daniel H. Byun, Gregory F. Chin, Byoung-kwon Chun, Michael O. Clarke, Bindu Goyal, Hon C. Hui, Petr Jansa, Richard L. Mackman, Michael R. Mish, Dustin S. Siegel, David Sperandio, Hai Yang, Lijun Zhang
  • Patent number: 11737655
    Abstract: An endoscope locking device comprises: a pedestal, a lock buckle and an elastic element, the pedestal is provided with a slot for mounting the lock buckle, the lock buckle is provided with an oblong hole in the center, and the lock buckle is mounted within the slot of the pedestal, and the lock buckle may reciprocate within the slot; and the lock buckle and the pedestal are elastically connected by the elastic element. The endoscope is fixed by using the elasticity of the elastic rubber ring to the endoscope locking device formed by the lock buckle and the pedestal.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: August 29, 2023
    Assignee: SHENYANG SHENGSHI MEDICAL TECHNOLOGY CO., LTD.
    Inventors: Lijun Zhang, Tao Zhu, Wei Gao
  • Publication number: 20230221388
    Abstract: A magnetic resonance imaging apparatus according to an aspect of the present disclosure includes a sequence controlling circuit and a processing circuit. The sequence controlling circuit is configured to acquire undersampled frequency domain scan data by executing a pulse sequence while carrying out an undersampling process. The processing circuit is configured: to generate image domain corrected data of the frequency domain scan data, by correcting the frequency domain scan data in an image domain; to generate frequency domain corrected data of the frequency domain scan data by correcting the frequency domain scan data in a frequency domain; to optimize the frequency domain scan data based on the image domain corrected data and the frequency domain corrected data; and to reconstruct image data by using the optimized frequency domain scan data.
    Type: Application
    Filed: January 10, 2023
    Publication date: July 13, 2023
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Fanxing MENG, Lijun ZHANG