Patents by Inventor Yi Pan

Yi Pan 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: 11482940
    Abstract: A high-efficiency LLC resonant converter is disclosed. During a normal operation of the LLC resonant converter, an error amplifier unit generates a modulated voltage signal to a first control unit after receives a data of voltage difference from a detection unit, and then the first control unit calculates an immediate load rate based on the modulated voltage signal. Subsequently, the second control unit receives a first adjustment signal that is outputted by the first control unit, so as to correspondingly generate a switch element controlling signal to a switch element of a DC power supplying unit of the LLC resonant converter, thereby achieving an output voltage modulation of the DC power supplying unit. As such, the LLC resonant converter is controlled to exhibit a conversion efficiency of at least 98% in case of working at any one load state.
    Type: Grant
    Filed: January 20, 2021
    Date of Patent: October 25, 2022
    Assignee: CHANNEL WELL TECHNOLOGY CO., LTD.
    Inventor: Yi-An Pan
  • Patent number: 11476627
    Abstract: A rotatable power plug assembly is disclosed, which comprises: a first connection module, a second connection module and a plug module, wherein the second connection module is connected between the first connection module and the plug module. According to the present invention, the first connection module comprises a first base that is disposed on a housing of the power device, and there are two first conductive pins and two second conductive pins provided on the first base. Moreover, the plug module comprises two prongs and two electrical units electrically connected to the prongs. The two electrical units contact with the first conductive pins and two second conductive pins through the second connection module. By such arrangement, the rotatable power plug assembly according to the present invention has multiple advantages, including: comprising elements and units can be simply assembled, modular design, high durability, and high security.
    Type: Grant
    Filed: July 29, 2021
    Date of Patent: October 18, 2022
    Assignee: CHANNEL WELL TECHNOLOGY CO. LTD.
    Inventor: Yi-An Pan
  • Publication number: 20220285900
    Abstract: A rotatable power plug assembly is disclosed, which comprises: a first connection module, a second connection module and a plug module, wherein the second connection module is connected between the first connection module and the plug module. According to the present invention, the first connection module comprises a first base that is disposed on a housing of the power device, and there are two first conductive pins and two second conductive pins provided on the first base. Moreover, the plug module comprises two prongs and two electrical units electrically connected to the prongs. The two electrical units contact with the first conductive pins and two second conductive pins through the second connection module. By such arrangement, the rotatable power plug assembly according to the present invention has multiple advantages, including: comprising elements and units can be simply assembled, modular design, high durability, and high security.
    Type: Application
    Filed: July 29, 2021
    Publication date: September 8, 2022
    Applicant: Channel Well Technology Co., Ltd.
    Inventor: Yi-An Pan
  • Publication number: 20220255066
    Abstract: Disclosed herein are a composite cathode material for a lithium-ion battery, a lithium-ion battery, and a vehicle. A core of the cathode material is a lithium-nickel-cobalt-manganese oxide material. A surface layer of the cathode material is a lithium-nickel-cobalt oxide material doped with an element E. There is a transition layer between the core and the surface layer. The transition layer is a lithium-nickel-cobalt-manganese oxide material doped with the element E. A content of the element E in the transition layer shows a decreasing trend in a direction from the surface layer of the cathode material to the core. A general formula for the composition of the transition layer is Li1+mNi1-x-y-zCoxMnyEzO2. 0?m?0.1, 0.01?x?0.1, 0.01?y?0.1, and 0.01?z?0.1. E is at least one of Al, Zr, Ti, Y, Ba or Sr.
    Type: Application
    Filed: May 27, 2020
    Publication date: August 11, 2022
    Inventors: Yi PAN, Rong HAO, Na CHEN, Xiaotao YUAN
  • Publication number: 20220228442
    Abstract: The present disclosure provides an earth-boring drill bit including a bit head and a shank. The shank includes a blank and a mandrel. The mandrel is concurrently formed by and secured to the blank by additive manufacturing. The mandrel includes a first region including a first alloy and a second region including a second alloy. The first alloy and the second alloy have a different modulus of elasticity, yield strength, resilience, ductility, hardness, fracture toughness, wear resistance, corrosion resistance, or erosion resistance. The disclosure also provides a mandrel wherein the second region comprises a sensor region or a fluid passageway having a geometry that is not obtainable in a mandrel that is cast, machined, or both. The disclosure additionally provides method of manufacturing such bits and mandrels.
    Type: Application
    Filed: August 8, 2019
    Publication date: July 21, 2022
    Inventors: Daniel Brendan Voglewede, Yi Pan
  • Publication number: 20220187891
    Abstract: A power conversion system connects a power supply and a computer device. The power conversion system includes a first port, input circuit, rectification circuit, output circuit, control circuit and second port. The first port connects to the power supply to receive a standby voltage input signal. The input circuit connects to the first port and the rectification circuit. The output circuit connects to the rectification circuit and the second port. The control circuit connects to the first port and the input circuit. The second port outputs a standby voltage conversion signal to the computer device. The standby voltage input signal from the power supply is converted into a standby voltage conversion signal required for the computer device, thereby dispensing with the need to change the power supply, enhancing ease of use, and reducing user expenses.
    Type: Application
    Filed: December 11, 2020
    Publication date: June 16, 2022
    Inventor: YI-AN PAN
  • Patent number: 11352869
    Abstract: A method includes receiving a plurality of drilling parameters from a drilling operation, wherein the plurality of drilling parameters. The drilling parameters include a cuttings bed height and a friction factor between a drill string and a wellbore. The method further includes applying the plurality of drilling parameters to a friction model. The friction model utilizes a function of the cuttings bed height to determine a comprehensive friction factor. The comprehensive friction factor is applied to the plurality of drilling parameters to determine a required torque or hook load of the drill string. The method further includes providing an indication of a stuck pipe event.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: June 7, 2022
    Assignee: Landmark Graphics Corporation
    Inventors: Feifei Zhang, Jr., Dale E. Jamison, Yi Pan
  • Publication number: 20220158472
    Abstract: A wireless charging device is disclosed, and comprises a microcontroller, a wireless charging module, at least one radiator fan, at least one status light, and a temperature sensor. The microcontroller has a memory unit that stores with a plurality of setting parameters, such that the microcontroller controls the wireless charging module to produce a wireless charging signal with a specific power according to the setting parameters, thereby transmitting the wireless charging signal to a receiver coil of a mobile electronic device under wirelessly charged. According to the setting parameters, the microcontroller also carries out a controlling operation of the radiator fan, such as fan rotation starting, rotation speed raising, rotation speed lowering, and fan rotation stopping. In addition, the microcontroller also controls the status light to exhibits a corresponding lighting scenario according to the setting parameters and an immediate charging mode.
    Type: Application
    Filed: March 16, 2021
    Publication date: May 19, 2022
    Applicant: CHANNEL WELL TECHNOLOGY CO., LTD.
    Inventor: Yi-An Pan
  • Patent number: 11308092
    Abstract: The disclosed embodiments provide a system for processing data. During operation, the system receives records of activity within a stream-processing system over a set of event streams, wherein each event stream in the set of event streams contains events related to a corresponding job in the stream-processing system. Next, the system indexes data in the records under a set of keys that include a first key related to jobs in the stream-processing system and a second key related to errors in the stream-processing system. The system then outputs the indexed data for use in analyzing the execution of the stream-processing system.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: April 19, 2022
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Abhishek Shivanna, Kartik Paramasivam, Ray Manpreet Singh Matharu, Samarth Shetty, Srinivasulu Punuru, Yi Pan, Prateek Maheshwari
  • Publication number: 20220094852
    Abstract: A shake correction control device includes a processor that acquires imaging information for selecting mechanical correction of mechanically performing shake correction of a subject image or electronic correction of electronically performing the shake correction of the subject image. The processor performs a switching control from either of the mechanical correction or the electronic correction to the other of the mechanical correction or the electronic correction, and synchronizes shake correction operations of the mechanical correction and the electronic correction during the switching control, and changes an operation ratio of the mechanical correction and the electrical correction in accordance with passage of time during the switching control.
    Type: Application
    Filed: December 1, 2021
    Publication date: March 24, 2022
    Applicant: FUJIFILM Corporation
    Inventors: Tomonori MASUDA, Masahiko SUGIMOTO, Yi PAN, Takashi HASHIMOTO, Tetsuya FUJIKAWA, Yasunobu KISHINE
  • Patent number: 11275198
    Abstract: A terahertz metamaterial waveguide and device are provided. The terahertz metamaterial waveguide comprises a subwavelength substrate layer and a metal layer. One surface of the subwavelength substrate layer is plated with the metal layer, and a plurality of periodically-distributed micropores is formed in the metal layer. The subwavelength substrate layer, the metal layer, and the formed plurality of periodically-distributed micropores are described.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: March 15, 2022
    Assignees: Shenzhen Terahertz System Equipment Co., Ltd., Shenzhen Institute of Terahertz Technology and Innovation
    Inventors: Yi Pan, Shichang Peng, Qing Ding
  • Publication number: 20220069722
    Abstract: A high-efficiency LLC resonant converter is disclosed. During a normal operation of the LLC resonant converter, an error amplifier unit generates a modulated voltage signal to a first control unit after receives a data of voltage difference from a detection unit, and then the first control unit calculates an immediate load rate based on the modulated voltage signal. Subsequently, the second control unit receives a first adjustment signal that is outputted by the first control unit, so as to correspondingly generate a switch element controlling signal to a switch element of a DC power supplying unit of the LLC resonant converter, thereby achieving an output voltage modulation of the DC power supplying unit. As such, the LLC resonant converter is controlled to exhibit a conversion efficiency of at least 98% in case of working at any one load state.
    Type: Application
    Filed: January 20, 2021
    Publication date: March 3, 2022
    Applicant: CHANNEL WELL TECHNOLOGY CO., LTD.
    Inventor: Yi-An PAN
  • Publication number: 20220060044
    Abstract: A fast charging device for mobile electronic device is disclosed. Particularly, an input-end filtering unit contained in the fast charging device is designed to comprise two first input capacitors, one second input capacitor, and one switch element. By such design, in case of a rated voltage of an input AC power being smaller than 110 Vac, the switch element is controlled to complete a switch-ON operation, so as to make the input-end filtering unit execute a signal filtering process by simultaneously using two first input capacitors and one second input capacitor. Moreover, in case of the rated voltage of the input AC power being in a range between 110 Vac and 264 Vac, the switch element is controlled to complete a switch-OFF operation, so as to make the input-end filtering unit execute the signal filtering process by merely using two first input capacitors.
    Type: Application
    Filed: January 20, 2021
    Publication date: February 24, 2022
    Applicant: CHANNEL WELL TECHNOLOGY CO., LTD.
    Inventor: Yi-An Pan
  • Patent number: 11256697
    Abstract: A database query optimization computer-implemented method, medium, and system are disclosed. In one computer-implemented method, a data query request sent by a client device is received and parsed. An execution plan for executing the data query request is determined based on a parsing result. If the execution plan is a nested loop anti-join, whether there is a possibility that a to-be-queried field in a to-be-queried data table indicated by the data query request contains a NULL value is determined. If there is a possibility that the to-be-queried field contains a NULL value, a filter condition is generated and the execution plan is optimized based on the filter condition.
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: February 22, 2022
    Assignee: Beijing OceanBase Technology Co., Ltd.
    Inventors: Yingying Yao, Yi Xiao, Yang Li, Yi Pan, Zhiyong Jiang
  • Patent number: 11228711
    Abstract: A shake correction control device includes an acquisition unit that acquires imaging information for selecting mechanical correction of mechanically performing shake correction of a subject image or electronic correction of electronically performing the shake correction of the subject image, and a shake correction control unit. The shake correction control unit performs a first control for performing a switching control from the mechanical correction to the electronic correction by synchronizing shake correction operations of the mechanical correction and the electronic correction and a second control, different from the first control, for performing a switching control from the electronic correction to the mechanical correction based on the imaging information acquired by the acquisition unit.
    Type: Grant
    Filed: May 25, 2021
    Date of Patent: January 18, 2022
    Assignee: FUJIFILM Corporation
    Inventors: Tomonori Masuda, Masahiko Sugimoto, Yi Pan, Takashi Hashimoto, Tetsuya Fujikawa, Yasunobu Kishine
  • Patent number: 11215555
    Abstract: A terahertz spectrum test device and system includes a femtosecond fiber laser configured to generate a pump light and a probe light. The pump light excites a terahertz transmitter to generate terahertz waves which are transmitted to a sample suspension device to irradiate a suspended to-be-tested sample, and the probe light is directly transmitted to a terahertz detector. The terahertz detector receives the terahertz waves transmitted from the sample suspension device, and then transmits the terahertz waves and the probe light together to a signal processing circuit to obtain a corresponding terahertz time-domain spectrum. By adoption of the terahertz spectrum test device and system, the to-be-tested sample need not be fixed with a clamp or other instruments, so that terahertz waves will not irradiate to the instrument used for fixing the to-be-tested sample during a terahertz spectrum test, which may otherwise affect the test result.
    Type: Grant
    Filed: December 26, 2019
    Date of Patent: January 4, 2022
    Assignees: SHENZHEN INSTITUTE OF TERAHERTZ TECHNOLOGY AND INNOVATION CO., LTD., SHENZHEN INSTITUTE OF TERAHERTZ TECHNOLOGY AND INNOVATION
    Inventors: Cui Guo, Yi Pan, Zhanqiang Xue
  • Patent number: 11212448
    Abstract: A shake correction control device includes an acquisition unit and an operation control unit. The acquisition unit acquires, for each predetermined time, a related amount related to an operation recommendation condition under which an operation of a mechanical correction unit which corrects a shake of a subject image by mechanically moving at least one of a correction optical system or an imaging element is recommended. The operation control unit controls the operation of the mechanical correction unit and an operation of an electronic correction unit which corrects the shake by performing image processing on an image obtained by imaging performed by the imaging element.
    Type: Grant
    Filed: May 18, 2021
    Date of Patent: December 28, 2021
    Assignee: FUJIFILM Corporation
    Inventors: Yi Pan, Masahiko Sugimoto, Tomonori Masuda, Takashi Hashimoto, Tetsuya Fujikawa, Yasunobu Kishine
  • Patent number: 11203647
    Abstract: The present application discloses dual-function starch-based composite nanoparticles as well as a preparation method and application thereof. The preparation method comprises: hydrolyzing starch to form linear dextrin, grading the linear dextrin by using an alcohol-alcohol gradient precipitation method to obtain linear dextrin having homogeneous molecular weight distribution; oxidizing the linear dextrin by adopting an oxidation system to obtain oxidized dextrin; carrying out complex reaction on the oxidized dextrin and curcumin to form an oxidized dextrin-curcumin complex; and forming an oxidized dextrin-curcumin/chitosan hydrochloride composite nanoparticles from the oxidized dextrin-curcumin complex and chitosan hydrochloride. The aqueous phase solution of the dual-function starch-based composite nanoparticles containing gel polysaccharide is uniformly mixed with primary emulsion, calcium ion induction is carried out on the obtained double emulsion to obtain double-emulsion gel.
    Type: Grant
    Filed: January 13, 2020
    Date of Patent: December 21, 2021
    Assignee: HEFEI UNIVERSITY OF TECHNOLOGY
    Inventors: Bao Zhang, Baocai Xu, Xiaomin Li, Peijun Li, Yi Pan, Ran Meng, Xiaolong Li, Wenjie Liu
  • Patent number: 11199495
    Abstract: The invention relates to a terahertz full polarization state detection spectrometer, which comprises a terahertz wave generator, a polarizer, a polarization splitter, a horizontal terahertz detector and a vertical terahertz detector. The terahertz wave generator generates a terahertz wave and the polarizer optimizes the terahertz wave for purity. The sample to be detected modulates the terahertz wave after purity optimization to obtain the terahertz modulated wave. The terahertz modulated wave is decomposed by the polarization splitter into a horizontal terahertz wave and a vertical terahertz wave whose polarization states are perpendicular to each other. The two terahertz waves are detected by two corresponding terahertz detectors respectively. According to the detected result, the characteristic of the sample is analyzed.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: December 14, 2021
    Assignees: Shenzhen Institute of Terahertz Technology and Innovation Co., Ltd., Shenzhen Institute of Terahertz Technology and Innovation
    Inventors: Qing Ding, Yi Pan, Shichang Peng
  • Patent number: 11202009
    Abstract: A shake correction control device includes an acquisition unit and an operation control unit. The acquisition unit acquires, for each predetermined time, a related amount related to each of a first operation recommendation condition under which an operation of a mechanical correction unit that corrects a shake of a subject image by mechanically moving at least one of a correction optical system or an imaging element is recommended, and a second operation recommendation condition under which an operation of an electronic correction unit that corrects the shake by performing image processing on an image obtained by imaging performed by the imaging element is recommended.
    Type: Grant
    Filed: May 18, 2021
    Date of Patent: December 14, 2021
    Assignee: FUJIFILM Corporation
    Inventors: Masahiko Sugimoto, Tomonori Masuda, Yi Pan, Takashi Hashimoto, Tetsuya Fujikawa, Yasunobu Kishine