Patents by Inventor Huajun Liu
Huajun 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).
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Patent number: 11951618Abstract: A multi-procedure integrated automatic production line for hard alloy blades under robot control is provided. The production line includes a rail-guided robot. A cutter passivation device and a blade cleaning and drying device are arranged on one side of the rail-guided robot. A blade-coating transfer table, a blade coating device, a blade boxing transfer table, a blade-tooling dismounting device and a blade boxing device are sequentially arranged on another side of the rail-guided robot. The blade-tooling dismounting device is arranged on one side of the blade boxing transfer table. The production line further includes squirrel-cage toolings for carrying the blades. The squirrel-cage tooling that are loaded with the blades can run among the cutter passivation device, the blade cleaning and drying device, the blade-coating transfer table and the blade boxing transfer table. The blades after being treated through the blade-tooling dismounting device are sent to the blade boxing device.Type: GrantFiled: August 17, 2021Date of Patent: April 9, 2024Assignees: Qingdao University of Technology, Ningbo Sanhan Alloy Material Co., Ltd.Inventors: Changhe Li, Teng Gao, Liang Luo, Lizhi Tang, Yanbin Zhang, Weixi Ji, Binhui Wan, Shuo Yin, Huajun Cao, Bingheng Lu, Xin Cui, Mingzheng Liu, Jie Xu, Huiming Luo, Haizhou Xu, Min Yang, Huaping Hong, Yuying Yang, Haogang Li, Wuxing Ma, Shuai Chen
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Patent number: 11945066Abstract: The present disclosure relates to a method for online monitoring defect of a milling tool, comprising the steps of: 1) installing a vibration sensor module on a machine tool spindle; 2) acquiring initial sample data; 3) setting a threshold value ?S0 with a time interval of T; 4) measuring vibration signals of n blades in x, y and z directions in each period T0; 5) shaping to obtain n strong vibration cutting wave data respectively formed by n blades in x and y directions in each period T0; 6) analyzing and processing the strong vibration cutting wave data to obtain the difference ?S0/ between the cutting strong vibration wave areas formed by each blade in each period T0; 7) outputting a blade wear or defect signal to a display alarm module according to the constraint conditions by a data comparing and analyzing module, and giving an alarm by a display alarm module.Type: GrantFiled: September 3, 2020Date of Patent: April 2, 2024Assignee: CHONGQING UNIVERSITYInventors: Huajun Cao, Degui Qiu, Hu Liu, Yingqing Chai
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Patent number: 11913670Abstract: Disclosed are a sealed box container, a main machine of a heat recovery switching device and a refrigeration device. The sealed box container includes box bodies that are spliced to form a sealed cavity, and is provided with a through hole in communication with the sealed cavity, and the sealed cavity is used for accommodating a pipeline assembly of a main machine, and the pipeline assembly is connected to an external pipeline by means of the through hole.Type: GrantFiled: March 18, 2020Date of Patent: February 27, 2024Assignees: GD MIDEA HEATING & VENTILATING EQUIPMENT CO., LTD., MIDEA GROUP CO., LTD.Inventors: Huajun Mao, Shuqing Liu
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Publication number: 20240025475Abstract: A steer-by-wire steering apparatus according to the present invention includes: a reaction force actuator control section that controls an output amount of a reaction force actuator; a steering actuator control section that controls a steering actuator in response to a manipulation of a steering operation input member, the steering actuator steering steered wheels via a steering unit; a deviation recognition section that recognizes a deviation between a manipulation amount of the steering operation input member and a steering amount of the steering unit; and a reaction force actuator output boost section that, when the deviation increases, increases the output amount of the reaction force actuator. Thus, the steering reaction force can be appropriately controlled in correspondence with a response delay in the steering amount of the steering unit with respect to the manipulation amount of the steering operation input member.Type: ApplicationFiled: September 6, 2021Publication date: January 25, 2024Applicant: HITACHI ASTEMO, LTD.Inventors: Atsushi HIRATA, Yasuhito NAKAKUKI, Tsukasa MIYAJIMA, Huajun LIU
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Publication number: 20230166981Abstract: The present invention relates, in general terms, to piezoelectric thin films with an empirical formula (K1xNax)yNbO3, wherein 0?x?1 and 0.64?y?0.95. In particular, the piezoelectric thin film comprises at least two adjacent NbO2 planes in an antiphase boundary, the at least two adjacent NbO2 planes displaced from each other by about half a lattice length in either the (100), (010) or (100) crystallographic plane. The present invention also relates to methods of fabricating the piezoelectric thin films.Type: ApplicationFiled: April 16, 2021Publication date: June 1, 2023Inventors: Moaz WAQAR, John WANG, Stephen John PENNYCOOK, Haijun WU, Kui YAO, Huajun LIU
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Publication number: 20230082506Abstract: The present disclosure discloses a blockchain-based e-business platform for metaverse decentralization, and relates to the technical field of polymerization of diversified blockchain technologies. The e-business platform includes three blockchain technologies with different features: a commodity transaction blockchain system, a digital commodity ownership electronic authentication blockchain system, and a distributed storage blockchain system. Based on the high-performance transaction blockchain system, ultrahigh-speed transactions are achieved, and extremely low transaction fees are produced, so that a decentralization e-business transaction module becomes more effective. Based on the digital commodity ownership electronic authentication blockchain system, a commodity features with uniqueness, traceability, irreversibility, authorization and the like, and a decentralization e-business commodity management module becomes more efficient and simpler.Type: ApplicationFiled: November 18, 2022Publication date: March 16, 2023Applicant: Ruijin Qianniao Network Technology Co., Ltd.Inventor: Huajun Liu
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Publication number: 20230054469Abstract: A motor shaft is rotated to a predetermined rotation stop position by excitation of two-phase coils out of three-phase coils of a stator coil, and a detection value of a rotation angle sensor at the rotation stop position is acquired. Further, a sensor-error correction parameter for correcting a detection value of the rotation angle sensor in drive control of an electric motor is generated from the acquired detection value of the rotation angle sensor. With this configuration, in rotating a motor rotor to the predetermined rotation stop position, two coils out of the three-phase coils of the stator coil are excited. By sequentially changing the coils being excited, it is possible to cause the motor rotor to stop accurately at the predetermined rotation stop position.Type: ApplicationFiled: February 5, 2021Publication date: February 23, 2023Applicant: HITACHI ASTEMO, LTD.Inventors: Huajun LIU, Masaki KASHIMA
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Publication number: 20230059965Abstract: A steering input device for steer-by-wire, according to the present invention, includes a steering shaft that is mechanically separated from a steered wheel, a reaction force motor that applies a steering load to the steering shaft, a lock mechanism that regulates rotation of the steering shaft, a steering amount sensor that detects an operation amount of the steering shaft and outputs an operation amount signal, and a controller. The controller increases the reaction torque generated by the reaction force motor after the starting switch of the vehicle is switched to an OFF state, and after the reaction torque is increased, switches the lock mechanism to a locked state. Thereby, it is possible to suppress an uncomfortable sensation of the driver in steering, while suppressing occurrence of a phase shift between the steering wheel and the steered wheel when the starting switch of the vehicle is switched to the OFF state.Type: ApplicationFiled: February 3, 2021Publication date: February 23, 2023Applicant: HITACHI ASTEMO, LTD.Inventors: Yasuhito NAKAKUKI, Makoto KIMURA, Huajun LIU, Atsushi HIRATA
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Publication number: 20220367787Abstract: Various embodiments may provide an electromechanical responsive film. The electromechanical responsive film may include a composition including sodium (Na), potassium (K), niobium (Nb) and oxygen (O). The composition may have a formula (NaxKy)NbO3-?, wherein 0?x<1, wherein 0?y<1, and wherein 0<x+y<1. The composition may satisfy at least one condition selected from a group consisting of a first condition of (x+y+4)/2?(3??)?(x+y+5)/2 and a second condition of 0<?<1.Type: ApplicationFiled: June 30, 2020Publication date: November 17, 2022Inventors: Huajun Liu, Kui Yao
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Patent number: 11467499Abstract: Apparatus, methods and are disclosed for measuring refractive index of an absorber material used in EUV phase shift masks. The method and apparatus utilize a reference measurement and as series of reflectance measurements at a range of EUV wavelengths and thickness values for the absorber material to determine the refractive index of the absorber material.Type: GrantFiled: June 5, 2020Date of Patent: October 11, 2022Assignee: Applied Materials, Inc.Inventors: Wen Xiao, Vibhu Jindal, Huajun Liu, Herng Yau Yoong
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Patent number: 11366059Abstract: Apparatus, methods and are disclosed for measuring refractive index of a material film. The method and apparatus utilize a reference measurement and as series of reflectance measurements at a range of wavelengths and thickness values for the material film to determine the refractive index of the material film.Type: GrantFiled: June 5, 2020Date of Patent: June 21, 2022Assignee: Applied Materials Inc.Inventors: Wen Xiao, Vibhu Jindal, Huajun Liu, Herng Yau Yoong
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Publication number: 20220146252Abstract: A non-contact non-destructive testing method includes spatially and/or temporally controlling a laser excitation light based on a predetermined pattern. The laser excitation light is projected onto a surface of a test object to generate acoustic waves on the test object. The acoustic waves apply stress loading to the test object. The method also includes imaging the test object with and without stress loading using shearography imaging, and analyzing shearography imaging data to determine a presence of a defect in the test object.Type: ApplicationFiled: March 26, 2020Publication date: May 12, 2022Inventors: Lei Zhang, Weng Heng Liew, Huajun Liu
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Publication number: 20220128353Abstract: A structural health monitoring method includes directly forming an acoustic transducer on a surface of a structure to be monitored; generating, by the acoustic transducer, an acoustic wave to apply stress loading to a region of interest on the structure; and detecting a presence of a defect in the region of interest. Detecting includes a non-contact optical imaging of the region of interest with and without the stress loading and an analysis of imaging data from the non-contact optical imaging.Type: ApplicationFiled: March 16, 2020Publication date: April 28, 2022Inventors: Huajun Liu, Kui Yao, Lei Zhang
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Publication number: 20210382398Abstract: Apparatus, methods and are disclosed for measuring refractive index of an absorber material used in EUV phase shift masks. The method and apparatus utilize a reference measurement and as series of reflectance measurements at a range of EUV wavelengths and thickness values for the absorber material to determine the refractive index of the absorber material.Type: ApplicationFiled: June 5, 2020Publication date: December 9, 2021Applicant: Applied Materials, Inc.Inventors: Wen Xiao, Vibhu Jindal, Huajun Liu, Herng Yau Yoong
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Publication number: 20210381967Abstract: Apparatus, methods and are disclosed for measuring refractive index of a material film. The method and apparatus utilize a reference measurement and as series of reflectance measurements at a range of wavelengths and thickness values for the material film to determine the refractive index of the material film.Type: ApplicationFiled: June 5, 2020Publication date: December 9, 2021Applicant: Applied Materials, Inc.Inventors: Wen Xiao, Vibhu Jindal, Huajun Liu, Herng Yau Yoong
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Patent number: 11028693Abstract: An absorption-induction convectional dust-controlling/removing air/fog curtain device of a fully-mechanized working face and a method thereof, wherein the device includes an extraction type dust-purifying blower, a sector deflector, a shearer external spraying device and an inter-hydraulic-support spraying device. The shearer external spraying devices are mounted at both sides of a shearer body close to rocking arms of a shearer and the inter-hydraulic-support spraying devices are mounted at two un-advanced hydraulic supports and two hydraulic supports at a leeward side of a front drum of the shearer respectively. Two extraction type dust-purifying blowers symmetrically mounted at the rocking arm close to the body of the shearer are started simultaneously with their air inlets exactly facing front and rear drums of the shearer respectively, and air outlets connected with the sector deflector.Type: GrantFiled: June 26, 2019Date of Patent: June 8, 2021Assignee: SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Wen Nie, Zihao Xiu, Dawei Chen, Peng Cai, Huitian Peng, Jiayi Yan, Qiang Liu, Bo Yang, Tao Du, Shibo Yang, Haihan Zhang, Huajun Liu
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Publication number: 20210047927Abstract: Disclosed are an absorption-induction convectional dust-controlling/removing air/fog curtain device of a fully-mechanized working face and a method thereof, belonging to the technical field of dust removal of coal mine. The device includes an extraction type dust-purifying blower, a sector deflector, a shearer external spraying device and an inter-hydraulic-support spraying device, wherein the shearer external spraying devices are mounted at both sides of a body of a shearer close to rocking arms of the shearer and the inter-hydraulic-support spraying devices are mounted at two un-advanced hydraulic supports and two hydraulic supports at a leeward side of a front drum of the shearer respectively, so that spraying is performed at a certain angle to form corresponding fog curtains so as to perform spraying precipitation for a large amount of dusts produced by support advancing and coal cutting.Type: ApplicationFiled: June 26, 2019Publication date: February 18, 2021Inventors: Wen NIE, Zihao XIU, Dawei CHEN, Peng CAI, Huitian PENG, Jiayi YAN, Qiang LIU, Bo YANG, Tao DU, Shibo YANG, Haihan ZHANG, Huajun LIU
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Patent number: 9679905Abstract: Integrated circuits and methods of producing the same are provide. In an exemplary embodiment, a method includes determining a memory area of the integrated circuit, and forming a select layer overlying the substrate. A portion of the select layer is selectively etched to form a select gate within the memory area. A concentration of an indicator is measured in an etch off-gas during the selective etching of the select layer, and the selective etching of the select layer is terminated when the concentration of the indicator crosses an end point determination concentration.Type: GrantFiled: April 8, 2016Date of Patent: June 13, 2017Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.Inventors: Laiqiang Luo, Yew Tuck Clament Chow, Fan Zhang, Huajun Liu, Dong Wang, Danny Pak-Chum Shum, Juan Boon Tan
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Patent number: 9404189Abstract: The present application relates to a high temperature carbon dioxide corrosion inhibitor comprising the following components by mass percent: amide compound 15˜50%, organic alkynol 10˜25%, mercaptan acid 5˜15%, piperidine 5˜25%, mercaptopyridine 5˜15%, and solvent 25˜60%. The corrosion inhibitor has excellent corrosion inhibition for CO2 corrosion of oil field water system at a high temperature (150˜250° C.).Type: GrantFiled: October 29, 2013Date of Patent: August 2, 2016Assignees: CHINA NATIONAL OFFSHORE OIL CORPORATION, CHINA OILFIELD SERVICES LIMITEDInventors: Yongtao Sun, Zenghua Ma, Huajun Liu, Tong Wang, Tao Lin, Haitao Liu, Shaohua Wang, Yubao Sun
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Patent number: 9236391Abstract: Fabrication of a slim split gate cell and the resulting device are disclosed. Embodiments include forming a first gate on a substrate, the first gate having an upper surface and a hard-mask covering the upper surface, forming an interpoly isolation layer on side surfaces of the first gate and the hard-mask, forming a second gate on one side of the first gate, with an uppermost point of the second gate below the upper surface of the first gate, removing the hard-mask, forming spacers on exposed vertical surfaces, and forming a salicide on exposed surfaces of the first and second gates.Type: GrantFiled: June 8, 2015Date of Patent: January 12, 2016Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.Inventors: Yu Chen, Huajun Liu, Siow Lee Chwa, Soh Yun Siah, Yanxia Shao, Yoke Leng Lim