Patents by Inventor Yujun Chen
Yujun Chen 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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Publication number: 20240083837Abstract: It is related to a process for purifying organic amines. The process comprises (a) providing an organic amine to a first vessel (5), the organic amine having a normal boiling point at one bar; (b) filling the first vessel (5) with inert gas; (c) heating the organic amine in the first vessel (5) to a sub-boiling temperature, wherein the sub-boiling temperature is at least 15° C. less than the normal boiling point; (d) cooling the vapor from the first vessel (5) in a second vessel (20) to provide a liquid; and (e) contacting the organic amine with a resin polymer matrix, wherein the resin polymer matrix is embedded with an amino compound selected from the group consisting of iminodiacetic acid, aminomethylphosphonic acid or a combination thereof.Type: ApplicationFiled: May 19, 2021Publication date: March 14, 2024Inventors: Qi Jiang, Kaoru Ohba, Yujun Liu, Jongcheol Kim, Xue Chen, Li Mu
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Publication number: 20240066499Abstract: The present invention describes a method to remove metals present in a mixture comprising one or more organic amines comprising the step of contacting the mixture with a silica-polyethyleneimine adsorbent.Type: ApplicationFiled: March 21, 2022Publication date: February 29, 2024Inventors: Yujun Liu, Xue Chen, Stephen W. King, Towhid Hasan, Jerrod Ruddick, James York, Amarnath Singh
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Patent number: 11108051Abstract: The present disclosure provides a modified positive electrode active material. The modified positive electrode active material comprises a positive electrode active material inner core; a metal oxide layer comprising a metal oxide and coated on a surface of the positive electrode active material inner core; and a polymer layer comprising a polymer and coated on a surface of the metal oxide layer, the polymer being one or more selected from a group consisting of polyacrylic acid, polymethyl methacrylate, polyacrylamide and lithium polyacrylate. The modified positive electrode active material of the present disclosure has better structure stability and thermal stability, when the modified positive electrode active material is applied in the electrochemical energy storage device, cycle performance and safety performance of the electrochemical energy storage device can be significantly improved without decreasing energy density of the electrochemical energy storage device.Type: GrantFiled: May 1, 2018Date of Patent: August 31, 2021Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITEDInventors: Yujun Chen, Xinliang Kuang, Long Wang, Na Liu, Huan Ni
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Patent number: 10784508Abstract: The present disclosure provides a preparation method of a modified positive electrode active material preparation method, which comprising steps of: dispersing a positive electrode active material matrix into an alcohol solvent to form a positive electrode active material matrix suspension; dissolving an alcohol-soluble aluminum salt in an alcohol solvent to form an alcohol-soluble aluminum salt solution; dissolving an alcohol-soluble phosphorous compound in an alcohol solvent to form an alcohol-soluble phosphorous compound solution; mixing the alcohol-soluble aluminum salt solution and the alcohol-soluble phosphorous compound solution and heating to react, obtaining a liquid-phase coating solution which contains aluminum phosphate after the reaction is finished; mixing and stirring the positive electrode active material matrix suspension and the liquid-phase coating solution which contains aluminum phosphate, extraction filtrating and obtaining a filter cake after the stirring is finished, then drying and baType: GrantFiled: May 10, 2018Date of Patent: September 22, 2020Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITEDInventors: Huan Ni, Yujun Chen, Xinliang Kuang, Xuguang Gao, Long Wang, Na Liu
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Patent number: 10720643Abstract: The present invention provides a positive electrode material for a lithium ion battery including a nickel-containing positive electrode material and a coating layer coated on the nickel-containing positive electrode material, wherein the nickel-containing positive electrode material has a chemical formula of LiNixM1-xO2, 0.5?x?1, M is at least one of Co, Mn and Al, and the coating layer contains lithium vanadium phosphate and silica. Compared with the prior art, the coating layer containing lithium vanadium phosphate and silica coated on the nickel-containing positive electrode material of the present invention can remarkably improve the dynamic performances and the cycle performances at high voltage of the lithium ion battery. In addition, the present invention also provides a method for preparing the positive electrode material a lithium ion battery containing the positive electrode material.Type: GrantFiled: January 23, 2018Date of Patent: July 21, 2020Assignee: Contemporary Amperex Technology Co., LimitedInventors: Xinliang Kuang, Yujun Chen, Long Wang, Na Liu
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Publication number: 20200218629Abstract: Certain aspects involve providing automated performance monitoring of statistical models. For example, a processing device is used for performing a statistical analysis on information in an archive to extract historical data, scores, and attributes. The processing device calculates performance metrics based at least in part on the historical data, scores, and attributes. The processing device pre-calculates summary performance data based at least in part on the performance metrics. The summary performance data is stored in files with predefined layouts, which are stored in a non-transitory, computer-readable medium. Segmented data is presented from a file to a user through a graphical user interface (GUI). In some aspects, various reports of the segmented data are presented interactively by detecting a selection by the user of a segmentation and displaying the corresponding segmented data.Type: ApplicationFiled: August 15, 2017Publication date: July 9, 2020Inventors: Yujun CHEN, Zhenyu WANG, Vickey CHANG, Jeffrey FENG
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Patent number: 10707929Abstract: A method of processing signals in a radio processing apparatus of a base station may include obtaining a plurality of aggregated data symbols, wherein each of the plurality of aggregated data symbols corresponds to a receive terminal of a plurality of receive terminals of the base station and is composed of transmitted data symbols from a plurality of transmit terminals; applying a compression filter to the plurality of aggregated data symbols to reduce the plurality of aggregated data symbols into a plurality of isolated data symbols, the compression filter being based on channel estimates between the plurality of receive terminals and the plurality of transmit terminals; and transmitting the plurality of isolated data symbols to a baseband processing apparatus of the base station.Type: GrantFiled: September 10, 2015Date of Patent: July 7, 2020Assignee: Apple Inc.Inventors: Wenting Chang, Xu Zhang, Yujun Chen, Jiansong Tian, Guangjie Li, Ye Wu, Feng Zhou
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Patent number: 10511361Abstract: A method for determining a precoding matrix for a MIMO transmitter based on a weighted MMSE algorithm is disclosed. A precoding module identically transforms a first matrix expression into a second matrix expression. The first matrix expression comprises a matrix inversion operation of a quadratic matrix having a rank equal to a number of antennas of the MIMO transmitter. The second matrix expression comprises a matrix inversion operation of a quadratic matrix having a rank equal to a number of receivers scheduled for the MIMO transmitter.Type: GrantFiled: June 17, 2015Date of Patent: December 17, 2019Assignee: Intel CorporationInventors: Wenting Chang, Guangjie Li, Yujun Chen, Xu Zhang
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Patent number: 10393098Abstract: A two-way wobble plate compressor, comprising: a cylinder block (100); a two-way piston (200) capable of reciprocating within a cylinder bore (110) of the cylinder block (100); a drive assembly (300) driving the two-way piston (200), the drive assembly (300) including a drive shaft (310), a rotor (320) fixedly connected with the drive shaft (310), and an annular wobble plate (330) fitting with the rotor (320); the rotor (320) has an inner surface (323) for fitting with the annular wobble plate (330), the inner surface (323) include a first inner surface (324) and a second inner surface (325), which are oppositely arranged, and a rotor contact surface (326); the wobble plate (330) is partially encircled within the inner surface (323) of the rotor (320), and includes a first peripheral portion (334), a second peripheral portion (335), and a wobble plate contact surface (336); a first bearing (340) is provided between the first inner surface (324) and the first peripheral portion (334), a second bearing (350) isType: GrantFiled: May 21, 2015Date of Patent: August 27, 2019Assignee: BITZER Refrigeration Technology (China) Co., Ltd.Inventors: Dazi Shen, Jian Wang, Yujun Chen
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Patent number: 10253764Abstract: A two-way wobble plate compressor, comprising: a cylinder block (100); a two-way piston (200) capable of reciprocating within a cylinder bore (110) of the cylinder block (100); a drive shaft (310) driving the two-way piston (200); a bearing unit, including a plurality of contact balls and an inner ring and an outer ring fitting with the plurality of contact balls, and having a central plane (P-P) angled to a perpendicular plane (I-I) of the drive shaft; wherein said drive shaft (310) is sleeved in the inner ring of the bearing unit, and is fixed to the inner ring; the outer ring of said bearing unit is coupled to the two-way piston, and when the drive shaft rotates, the two-way piston is driven via the bearing unit to perform reciprocating motion. The two-way wobble plate compressor of the present invention has a compact design, and may significantly reduce friction loss.Type: GrantFiled: May 21, 2015Date of Patent: April 9, 2019Assignee: BITZER Refrigeration Technology (China) Co., Ltd.Inventors: Dazi Shen, Jian Wang, Yujun Chen
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Publication number: 20190089427Abstract: A method for determining a precoding matrix for a MIMO transmitter based on a weighted MMSE algorithm is disclosed. A precoding module identically transforms a first matrix expression into a second matrix expression. The first matrix expression comprises a matrix inversion operation of a quadratic matrix having a rank equal to a number of antennas of the MIMO transmitter. The second matrix expression comprises a matrix inversion operation of a quadratic matrix having a rank equal to a number of receivers scheduled for the MIMO transmitter.Type: ApplicationFiled: June 17, 2015Publication date: March 21, 2019Inventors: Wenting Chang, Guangjie Li, Yujun Chen, Xu Zhang
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Publication number: 20180337401Abstract: The present disclosure provides a preparation method of a modified positive electrode active material preparation method, which comprising steps of: dispersing a positive electrode active material matrix into an alcohol solvent to form a positive electrode active material matrix suspension; dissolving an alcohol-soluble aluminum salt in an alcohol solvent to form an alcohol-soluble aluminum salt solution; dissolving an alcohol-soluble phosphorous compound in an alcohol solvent to form an alcohol-soluble phosphorous compound solution; mixing the alcohol-soluble aluminum salt solution and the alcohol-soluble phosphorous compound solution and heating to react, obtaining a liquid-phase coating solution which contains aluminum phosphate after the reaction is finished; mixing and stirring the positive electrode active material matrix suspension and the liquid-phase coating solution which contains aluminum phosphate, extraction filtrating and obtaining a filter cake after the stirring is finished, then drying and baType: ApplicationFiled: May 10, 2018Publication date: November 22, 2018Inventors: Huan NI, Yujun CHEN, Xinliang KUANG, Xuguang GAO, Long WANG, Na LIU
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Publication number: 20180323436Abstract: The present disclosure provides a modified positive electrode active material. The modified positive electrode active material comprises a positive electrode active material inner core; a metal oxide layer comprising a metal oxide and coated on a surface of the positive electrode active material inner core; and a polymer layer comprising a polymer and coated on a surface of the metal oxide layer, the polymer being one or more selected from a group consisting of polyacrylic acid, polymethyl methacrylate, polyacrylamide and lithium polyacrylate. The modified positive electrode active material of the present disclosure has better structure stability and thermal stability, when the modified positive electrode active material is applied in the electrochemical energy storage device, cycle performance and safety performance of the electrochemical energy storage device can be significantly improved without decreasing energy density of the electrochemical energy storage device.Type: ApplicationFiled: May 1, 2018Publication date: November 8, 2018Inventors: Yujun CHEN, Xinliang KUANG, Long WANG, Na LIU, Huan NI
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Publication number: 20180287673Abstract: A method of processing signals in a radio processing apparatus of a base station may include obtaining a plurality of aggregated data symbols, wherein each of the plurality of aggregated data symbols corresponds to a receive terminal of a plurality of receive terminals of the base station and is composed of transmitted data symbols from a plurality of transmit terminals; applying a compression filter to the plurality of aggregated data symbols to reduce the plurality of aggregated data symbols into a plurality of isolated data symbols, the compression filter being based on channel estimates between the plurality of receive terminals and the plurality of transmit terminals; and transmitting the plurality of isolated data symbols to a baseband processing apparatus of the base stationType: ApplicationFiled: September 10, 2015Publication date: October 4, 2018Inventors: Wenting CHANG, Xu ZHANG, Yujun CHEN, Jiansong TIAN, Guangjie LI, Ye WU, Feng ZHOU
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Publication number: 20180212242Abstract: The present invention provides a positive electrode material for a lithium ion battery including a nickel-containing positive electrode material and a coating layer coated on the nickel-containing positive electrode material, wherein the nickel-containing positive electrode material has a chemical formula of LiNixM1-xO2, 0.5?x?1, M is at least one of Co, Mn and Al, and the coating layer contains lithium vanadium phosphate and silica. Compared with the prior art, the coating layer containing lithium vanadium phosphate and silica coated on the nickel-containing positive electrode material of the present invention can remarkably improve the dynamic performances and the cycle performances at high voltage of the lithium ion battery. In addition, the present invention also provides a method for preparing the positive electrode material a lithium ion battery containing the positive electrode material.Type: ApplicationFiled: January 23, 2018Publication date: July 26, 2018Inventors: Xinliang Kuang, Yujun Chen, Long Wang, Na Liu
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Publication number: 20170096992Abstract: A two-way wobble plate compressor, comprising: a cylinder block (100); a two-way piston (200) capable of reciprocating within a cylinder bore (110) of the cylinder block (100); a drive shaft (310) driving the two-way piston (200); the two-way wobble plate compressor further includes a bearing unit, the bearing unit including a plurality of contact balls and an inner ring and an outer ring fitting with the plurality of contact balls, and the bearing unit having a central plane (P-P) angled to a perpendicular plane (I-I) of the drive shaft, wherein said drive shaft (310) is sleeved in the inner ring of the bearing unit, and is fixed to the inner ring; the outer ring of said bearing unit is coupled to the two-way piston, and when the drive shaft rotates, the two-way piston is driven via the bearing unit to perform reciprocating motion. The two-way wobble plate compressor of the present invention has a compact design, and may significantly reduce friction loss.Type: ApplicationFiled: May 21, 2015Publication date: April 6, 2017Inventors: Dazi Shen, Jian Wang, Yujun Chen
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Publication number: 20170089329Abstract: A two-way wobble plate compressor, comprising: a cylinder block (100); a two-way piston (200) capable of reciprocating within a cylinder bore (110) of the cylinder block (100); a drive assembly (300) driving the two-way piston (200), the drive assembly (300) including a drive shaft (310), a rotor (320) fixedly connected with the drive shaft (310), and an annular wobble plate (330) fitting with the rotor (320); the rotor (320) has an inner surface (323) for fitting with the annular wobble plate (330), the inner surface (323) include a first inner surface (324) and a second inner surface (325), which are oppositely arranged, and a rotor contact surface (326); the wobble plate (330) is partially encircled within the inner surface (323) of the rotor (320), and includes a first peripheral portion (334), a second peripheral portion (335), and a wobble plate contact surface (336); a first bearing (340) is provided between the first inner surface (324) and the first peripheral portion (334), a second bearing (350) isType: ApplicationFiled: May 21, 2015Publication date: March 30, 2017Inventors: Dazi Shen, Jian Wang, Yujun Chen
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Patent number: 9441331Abstract: A three-dimensional urban road system capable of intensively utilizing land and avoiding traffic jam, including a straight section, a longitudinal slope section and an intersection. The straight section and the intersection are connected to form a road network. The longitudinal slope section is connected with the straight section, realizing connection between the straight section and the ground. The straight section includes a bottom road, a parking layer and a running layer; parallel ramps for small cars only arranged such that small cars in the straight section can switch among the three layers. Roads are changed into three layers: the upper running layer for small cars; the middle parking layer, a transfer layer for parking and connecting the ground road and the upper running layer; and the bottom road for large vehicles. Large vehicles and small cars are completely shunted, thus effectively solving the problem of traffic jam.Type: GrantFiled: December 21, 2012Date of Patent: September 13, 2016Inventors: Qingwei Chen, Shuang Chen, Yujun Chen, Yuyan Chen
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Publication number: 20140377000Abstract: A three-dimensional urban road system capable of intensively utilizing land and avoiding traffic jam is provided, including a straight section, a longitudinal slope section and an intersection. The straight section and the intersection are connected to form a road network. The longitudinal slope section is connected with the straight section, realizing connection between the straight section and the ground. The straight section includes a bottom road, a parking layer and a running layer; parallel ramps for small cars only arranged such that small cars in the straight section can switch among the three layers. Roads are changed into three layers: the upper running layer for small cars; the middle parking layer, a transfer layer for parking and connecting the ground road and the upper running layer; and the bottom road for large vehicles. Large vehicles and small cars are completely shunted, thus effectively solving the problem of traffic jam.Type: ApplicationFiled: December 21, 2012Publication date: December 25, 2014Inventors: Qingwei Chen, Shuang Chen, Yujun Chen, Yuyan Chen