Patents by Inventor Xun Gu
Xun Gu 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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Patent number: 11966079Abstract: The invention relates to a spliced optical fiber comprising a first and second polarization-maintaining optical fiber connected at ends by splicing; to fiber optic current sensors; and to a method for protecting the spliced optical fiber against mechanical stress and/or humidity. A protection tube is arranged around the spliced optical fiber in a splice section of the spliced optical fiber. A first and second end of the protection tube is sealed to the spliced optical fiber by first and second sealing arrangement for protecting the splice.Type: GrantFiled: April 2, 2019Date of Patent: April 23, 2024Assignee: HITACHI ENERGY LTDInventors: Xun Gu, Philippe Gabus
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Patent number: 11938536Abstract: Metal powder particles for use in additive manufacturing are made by removing material from the surface of the particles using wet chemical etching to create a nanoscale texturing of the surface, increasing absorptivity by the metal powder particles of incident laser light and maintaining flowability. The nanoscale texturing has sub-wavelength features at laser wavelengths in the range 800-1100 nm. The particles are substantially spherical and have mean diameters in the range 10-70 ?m.Type: GrantFiled: March 28, 2022Date of Patent: March 26, 2024Assignee: The Board of Trustees of the Leland Stanford Junior UniversityInventors: Ottman A. Tertuliano, Philip J. DePond, Andrew Curtis Lee, Xun Gu, Wei Cai, Adrian J. Lew
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Patent number: 11856776Abstract: A method of forming a structure of 3D NAND memory device, including steps of forming a first stack layer on a substrate, forming a first channel hole extending through the first stack layer, forming a block layer on a surface of the first stack layer and the first channel hole, forming a sacrificial layer in the first channel hole, forming a second stack layer on the first stack layer and the sacrificial layer, performing a first etch process to form a second channel hole extending through the second stack layer and at least partially overlapping the first channel hole and to remove the sacrificial layer in the first channel hole, removing the block layer exposed from the second channel hole, and forming a function layer on a surface of the first channel hole and the second channel hole.Type: GrantFiled: September 28, 2021Date of Patent: December 26, 2023Assignee: Yangtze Memory Technologies Co., Ltd.Inventors: Li Hong Xiao, Li Xun Gu
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Patent number: 11698568Abstract: A substrate includes a base, a pixel defining layer, a plurality of electrode pairs, and a plurality of light-emitting devices. The pixel defining layer is disposed on the base, and includes a plurality of through holes. At least one electrode pair includes a first electrode and a second electrode that are disposed at least on a hole wall of one of the through holes and at least partially opposite to each other, and the first electrode and the second electrode are insulated from each other. One of the plurality of light-emitting devices includes a liquid functional layer disposed in the through hole. The liquid functional layer is in direct contact with the first electrode and the second electrode. The liquid functional layer includes a liquid light-emitting layer configured to emit light.Type: GrantFiled: December 17, 2020Date of Patent: July 11, 2023Assignees: HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Xun Gu, Wenjuan Mei, Wenquan Chu, Hanqi Chu, Hailong Yang, Shibao Wang
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Patent number: 11611041Abstract: The present disclosure provides an organic thin film and a method for preparing the same, a display device, and an optical device, in which the method includes: providing a base substrate; forming an isomerization generating layer on the base substrate, the isomerization generating layer including a first region and a second region; adding a precursor solution on a surface of the isomerization generating layer away from the base substrate, and allowing surface energy of the second region to be greater than surface energy of the first region, so as to form the organic thin film from the precursor solution, the precursor solution being at least partially located in the second region.Type: GrantFiled: December 26, 2019Date of Patent: March 21, 2023Assignees: HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Xun Gu, Wenjuan Mei, Dan Liu, Baochao Li, Changjun Zhang
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Publication number: 20230049723Abstract: This application provides an integrated circuit, including a first MOS transistor. A first effective gate and a second effective gate are disposed in the first MOS transistor, and a first redundant gate is disposed between the first effective gate and the second effective gate. The first effective gate, the second effective gate, and the first redundant gate cover a plurality of fins arranged in parallel. The first effective gate and the second effective gate are connected to a gate terminal of the first MOS transistor. Fins on both sides of the first effective gate and fins on both sides of the second effective gate are respectively connected to a source terminal and a drain terminal of the first MOS transistor. The first redundant gate is connected to a redundant potential or suspended.Type: ApplicationFiled: October 28, 2022Publication date: February 16, 2023Inventors: Xi Qin, Xun Gu, Yu Tian
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Publication number: 20220355378Abstract: A consolidated metallic glass structure is formed by fabricating [200] metallic glass nanoparticles with a solution-phase synthesis that provides coated metallic glass nanoparticles with a polymer ligand layer; stripping [202] the polymer ligand layer from the coated metallic glass nanoparticles to provide bare metallic glass nanoparticles; depositing [204] the bare metallic glass nanoparticles on a substrate to provide a deposited structure; and sintering [206] the deposited structure with heat and/or pressure to provide the consolidated metallic glass structure. The metallic glass nanoparticles are preferably composed substantially of nickel and boron, iron and boron, or cobalt and boron.Type: ApplicationFiled: October 10, 2020Publication date: November 10, 2022Inventors: Xun Gu, Mehrdad T. Kiani
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Publication number: 20220305553Abstract: Metal powder particles for use in additive manufacturing are made by removing material from the surface of the particles using wet chemical etching to create a nanoscale texturing of the surface, increasing absorptivity by the metal powder particles of incident laser light and maintaining flowability. The nanoscale texturing has sub-wavelength features at laser wavelengths in the range 800-1100 nm. The particles are substantially spherical and have mean diameters in the range 10-70 ?m.Type: ApplicationFiled: March 28, 2022Publication date: September 29, 2022Inventors: Ottman A. Tertuliano, Philip J. DePond, Andrew Curtis Lee, Xun Gu, Wei Cai, Adrian J. Lew
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Publication number: 20220013541Abstract: A method of forming a structure of 3D NAND memory device, including steps of forming a first stack layer on a substrate, forming a first channel hole extending through the first stack layer, forming a block layer on a surface of the first stack layer and the first channel hole, forming a sacrificial layer in the first channel hole, forming a second stack layer on the first stack layer and the sacrificial layer, performing a first etch process to form a second channel hole extending through the second stack layer and at least partially overlapping the first channel hole and to remove the sacrificial layer in the first channel hole, removing the block layer exposed from the second channel hole, and forming a function layer on a surface of the first channel hole and the second channel hole.Type: ApplicationFiled: September 28, 2021Publication date: January 13, 2022Applicant: Yangtze Memory Technologies Co., Ltd.Inventors: Li Hong Xiao, Li Xun Gu
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Patent number: 11193959Abstract: In order to measure a voltage, an electro-optic element is placed in an electrical field generated by the voltage, and light is passed from a light source through a Faraday rotator and the electro-optic element onto a reflector and from there back through the electro-optic element and the Faraday rotator, thereby generating a voltage-dependent phase shift between two polarizations of the light. The interference contrast as well as a principal value of the total phase shift between said polarizations are measured and converted to a complex value having an absolute value equal to the contrast and a phase equal to the principal value. This complex value is offset and scaled using calibration values in order to calculate a compensated complex value. The voltage is derived from the compensated complex value.Type: GrantFiled: September 5, 2017Date of Patent: December 7, 2021Assignee: Hitachi Energy Switzerland AGInventors: Xun Gu, Klaus Bohnert, Sergio Vincenzo Marchese
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Publication number: 20210217954Abstract: The present disclosure provides an organic thin film and a method for preparing the same, a display device, and an optical device, in which the method includes: providing a base substrate; forming an isomerization generating layer on the base substrate, the isomerization generating layer including a first region and a second region; adding a precursor solution on a surface of the isomerization generating layer away from the base substrate, and allowing surface energy of the second region to be greater than surface energy of the first region, so as to form the organic thin film from the precursor solution, the precursor solution being at least partially located in the second region.Type: ApplicationFiled: December 26, 2019Publication date: July 15, 2021Applicants: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Xun GU, Wenjuan MEI, Dan LIU, Baochao LI, Changjun ZHANG
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Patent number: 11047885Abstract: The optical interferometric sensor device comprises an integrated beam splitter having a first facet and a second facet with optical ports arranged therein. On the beam splitter, the beam splitting junctions as well as the optoelectronics-side ports and the sensing-side port are arranged with a mutual displacement along the direction of the first facet. This displacement reduces undesired interference effects caused by stray light. Also, a quarter-wave retarder is provided in a recess of the beam splitter with layers of soft adhesive adjacent to it in order to reduce stress.Type: GrantFiled: January 22, 2019Date of Patent: June 29, 2021Assignee: ABB Power Grids Switzerland AGInventors: Klaus Bohnert, Andreas Frank, Yang Lin, Xun Gu, Georg Müeller
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Publication number: 20210191225Abstract: A substrate includes a base, a pixel defining layer, a plurality of electrode pairs, and a plurality of light-emitting devices. The pixel defining layer is disposed on the base, and includes a plurality of through holes. At least one electrode pair includes a first electrode and a second electrode that are disposed at least on a hole wall of one of the through holes and at least partially opposite to each other, and the first electrode and the second electrode are insulated from each other. One of the plurality of light-emitting devices includes a liquid functional layer disposed in the through hole. The liquid functional layer is in direct contact with the first electrode and the second electrode. The liquid functional layer includes a liquid light-emitting layer configured to emit light.Type: ApplicationFiled: December 17, 2020Publication date: June 24, 2021Inventors: Xun GU, Wenjuan MEI, Wenquan CHU, Hanqi CHU, Hailong YANG, Shibao WANG
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Publication number: 20210116641Abstract: The invention relates to a spliced optical fiber comprising a first and second polarization-maintaining optical fiber connected at ends by splicing; to fiber optic current sensors; and to a method for protecting the spliced optical fiber against mechanical stress and/or humidity. A protection tube is arranged around the spliced optical fiber in a splice section of the spliced optical fiber. A first and second end of the protection tube is sealed to the spliced optical fiber by first and second sealing arrangement for protecting the splice.Type: ApplicationFiled: April 2, 2019Publication date: April 22, 2021Inventors: Xun Gu, Philippe Gabus
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Patent number: 10804197Abstract: A three-dimensional memory device includes a pair of alternating stacks of insulating layers and electrically conductive layers located over a semiconductor region, and laterally spaced from each other by a backside trench, memory stack structures extending through the pair of alternating, each memory stack structure containing a vertical semiconductor channel and a memory film, and a backside contact assembly located in the backside trench. The backside contact assembly includes an isolation dielectric spacer contacting the pair of alternating stacks, a conductive liner contacting inner sidewalls of the isolation dielectric spacer and a top surface of the semiconductor region, and composite non-metallic core containing at least one outer dielectric fill material portion that is laterally enclosed by a lower portion of the conductive liner and a dielectric core contacting an inner sidewall of the at least one outer dielectric fill material portion.Type: GrantFiled: July 19, 2019Date of Patent: October 13, 2020Assignee: SANDISK TECHNOLOGIES LLCInventors: Motoki Kawasaki, Arata Okuyama, Xun Gu, Kengo Kajiwara, Jixin Yu
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Publication number: 20200312765Abstract: A three-dimensional memory device includes a pair of alternating stacks of insulating layers and electrically conductive layers located over a semiconductor region, and laterally spaced from each other by a backside trench, memory stack structures extending through the pair of alternating, each memory stack structure containing a vertical semiconductor channel and a memory film, and a backside contact assembly located in the backside trench. The backside contact assembly includes an isolation dielectric spacer contacting the pair of alternating stacks, a conductive liner contacting inner sidewalls of the isolation dielectric spacer and a top surface of the semiconductor region, and composite non-metallic core containing at least one outer dielectric fill material portion that is laterally enclosed by a lower portion of the conductive liner and a dielectric core contacting an inner sidewall of the at least one outer dielectric fill material portion.Type: ApplicationFiled: July 19, 2019Publication date: October 1, 2020Inventors: Motoki KAWASAKI, Arata OKUYAMA, Xun GU, Kengo KAJIWARA, Jixin YU
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Patent number: 10725073Abstract: An interferometric sensor and related methods are provided, with a sensing element whereby a measurand induces a relative phase shift between two waves, at least one detector measuring an interference signal between the two waves, and further including a phase shift detection unit having as input the interference signal and determining a first measure representative of the principal value of the relative phase shift, and a contrast detection unit having as input the interference signal for determining a second measure representative of the cross-correlation between the two waves, and a further a processing unit for converting the first and second measures to a measurand value.Type: GrantFiled: August 22, 2016Date of Patent: July 28, 2020Assignee: ABB Power Grids Switzerland AGInventors: Xun Gu, Sergio Vincenzo Marchese, Klaus Bohnert, Andreas Frank
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Publication number: 20200135752Abstract: A structure of 3D NAND memory device and manufacturing method are provided. The structure of 3D NAND memory device includes a substrate, a first stack layer on the substrate, a second stack layer on the first stack layer, a block layer between the first stack layer and the second stack layer, and a channel structure extending through the first stack layer, the block layer and the second stack layer, wherein the channel structure comprises a function layer and a channel layer surrounding by the functional layer.Type: ApplicationFiled: November 21, 2018Publication date: April 30, 2020Inventors: Li Hong Xiao, Li Xun Gu
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Publication number: 20190355595Abstract: A chemical etching apparatus and methods of using are disclosed. An apparatus used for chemical etching includes a bath designed to hold a first liquid. A liquid supply pipe runs along a bottom portion of the bath. The liquid supply pipe has a first plurality of openings along a length of the liquid supply pipe along the bottom portion of the bath. A gas supply pipe runs along the bottom portion of the bath. The gas supply pipe has a second plurality of openings along a length of the gas supply pipe along the bottom portion of the bath. The liquid supply pipe introduces a second liquid into the first liquid via the first plurality of openings and the gas supply pipe introduces a gas into the first liquid via the second plurality of openings.Type: ApplicationFiled: July 26, 2018Publication date: November 21, 2019Applicant: Yangtze Memory Technologies Co., LtdInventors: Wenbin SUN, Yangbo JIANG, Ya Jun WANG, Li Xun Gu, Rong XU, Liang Hui WU
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Patent number: 10416198Abstract: The invention relates to an assembly of a gas-tight compartment and an optical voltage sensor that further comprises a module. The module comprises an electro-optic crystal and electrodes, wherein the electro-optic crystal is the only element of the module to mechanically connect the two electrodes and to bridge the potentials of the two electrodes. The assembly is particuarly suited to measure direct current voltages.Type: GrantFiled: September 19, 2017Date of Patent: September 17, 2019Assignee: ABB Schweiz AGInventors: Sergio Vincenzo Marchese, Xun Gu, Burak Büyükkavir, Klaus Bohnert, Tobias Erford