Patents by Inventor Xian Yao
Xian Yao 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: 20240116771Abstract: The present disclosure relates to the technical field of oxygen carrier, discloses a medium-entropy perovskite oxygen carrier and its preparation method and application thereof, the synthesis procedure includes preparing an aqueous solution from metallic nitrate serving as a raw material, performing a coprecipitation reaction with at least one of aqueous ammonia solution, a sodium hydroxide aqueous solution or a sodium carbonate aqueous solution as a precipitant at a pH value of 9.5 to 10.5; obtaining the La3CoMnAlO9 powers after stirring, standing, washing, drying and calcining. The preparation method is simple, synthetic conditions are easy to control, and batch production could be achieved.Type: ApplicationFiled: May 26, 2023Publication date: April 11, 2024Inventors: Jinlong Gong, Xianhua Zhang, Chunlei Pei, Zhi-Jian Zhao, Xian Yao, Yifan Liu
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Publication number: 20230193697Abstract: A drilling tool having a body, at least one blade extending from the body, and a first cutting element attached to the at least one blade. The first cutting element includes a cutting face at an opposite axial end from a base, a side surface extending from the base to the cutting face, an edge formed at the intersection between the cutting face and the side surface, and an elongated protrusion formed at the cutting face and extending between opposite sides of the edge. The elongated protrusion has a geometry including a border extending around a concave surface, a face chamfer formed around the border, and sloped surfaces extending between the border and the edge. An edge chamfer is between the face chamfer and the edge.Type: ApplicationFiled: February 13, 2023Publication date: June 22, 2023Inventors: Manoj Mahajan, John Daniel Belnap, Xiaoge Gan, Yi Fang, Cheng Peng, Lynn Belnap, Youhe Zhang, Michael George Azar, Venkatesh Karuppiah, Anthony LeBaron, Xian Yao
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Patent number: 11578538Abstract: A cutting element has a cutting face at an opposite axial end from a base, a side surface extending from the base to the cutting face, an edge formed at the intersection between the cutting face and the side surface, and an elongated protrusion formed at the cutting face and extending between opposite sides of the edge, wherein the elongated protrusion has a geometry including a border extending around a concave surface and sloped surfaces extending between the border and the edge, and wherein the concave surface has a major axis dimension measured between opposite sides of the border and a minor axis dimension measured perpendicularly to the major axis dimension and ranging from 50 percent to 99 percent of the major axis dimension.Type: GrantFiled: January 8, 2021Date of Patent: February 14, 2023Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Manoj Mahajan, John Daniel Belnap, Xiaoge Gan, Yi Fang, Cheng Peng, Lynn Belnap, Youhe Zhang, Michael George Azar, Venkatesh Karuppiah, Anthony LeBaron, Xian Yao
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Publication number: 20220390678Abstract: A silicon photonic integrated chip and a wavelength division multiplexer that includes at least two polarization control structures and at least one polarization-independent Mach-Zehnder interferometer on a silicon substrate are provided. The polarization control structure includes two input ports and one output port. The Mach-Zehnder interferometer includes two input ports and one optical signal output port for outputting a multiplexed optical signal. The output ports of the polarization control structures are connected to the input ports of the Mach-Zehnder interferometer. The polarization control structures have large bandwidths for increasing an optical bandwidth of the wavelength division multiplexer and reducing an optical loss. A quantity of phase shift arms that require tuning feedback is reduced to lower overall power consumption of the wavelength division multiplexer.Type: ApplicationFiled: August 19, 2022Publication date: December 8, 2022Inventors: DE-FEN GUO, XIAN-YAO LI
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Publication number: 20210215003Abstract: A cutting element has a cutting face at an opposite axial end from a base, a side surface extending from the base to the cutting face, an edge formed at the intersection between the cutting face and the side surface, and an elongated protrusion formed at the cutting face and extending between opposite sides of the edge, wherein the elongated protrusion has a geometry including a border extending around a concave surface and sloped surfaces extending between the border and the edge, and wherein the concave surface has a major axis dimension measured between opposite sides of the border and a minor axis dimension measured perpendicularly to the major axis dimension and ranging from 50 percent to 99 percent of the major axis dimension.Type: ApplicationFiled: January 8, 2021Publication date: July 15, 2021Inventors: Manoj Mahajan, John Daniel Belnap, Xiaoge Gan, Yi Fang, Cheng Peng, Lynn Belnap, Youhe Zhang, Michael George Azar, Venkatesh Karuppiah, Anthony LeBaron, Xian Yao
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Patent number: 9670100Abstract: The present disclosure relates to the formation of polycrystalline diamond materials with fine diamond grains and nano-sized particles of a grain growth inhibitor. In one embodiment, a method of fabricating a polycrystalline diamond material is provided. The method includes providing a mixture of diamond particles with an average particle size of about 1 micron or less, distributing a plurality of nano-sized titanium-containing particles with the diamond mixture, to act as a grain growth inhibitor, and sintering the mixture of diamond particles and titanium-containing particles at high pressure and high temperature to create a polycrystalline structure of sintered diamond grains. The sintered diamond grains have an average size of about 1 micron or less.Type: GrantFiled: November 29, 2011Date of Patent: June 6, 2017Assignee: Element Six LimitedInventors: Yahua Bao, Xian Yao, Scott Horman
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Publication number: 20150291479Abstract: Polycrystalline cubic boron nitride includes cubic boron nitride grains and AlB12 between the cubic boron nitride grains. A method of manufacturing heat-treated polycrystalline cubic boron nitride includes sintering a mixture including cubic boron nitride and aluminum metal powder to form polycrystalline cubic boron nitride, and heat-treating the polycrystalline cubic boron nitride to form the heat-treated polycrystalline cubic boron nitride. A method of manufacturing polycrystalline cubic boron nitride includes sintering a mixture including cubic boron nitride and aluminum metal powder, the mixture including the cubic boron nitride in an amount of 85 vol % to 95 vol % and the aluminum metal powder in an amount of 5 vol % to 15 vol %, based on the total volume of the mixture.Type: ApplicationFiled: April 10, 2015Publication date: October 15, 2015Inventors: Xian Yao, John Daniel Belnap
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Patent number: 9028575Abstract: The present disclosure relates to cubic boron nitride (cBN) cutting elements that have high cBN content and that are cuttable by electric discharge machining (EDM). A cutting element according to an embodiment includes a self-sintered polycrystalline cubic boron nitride (PCBN) compact, having a first phase of cubic boron nitride (cBN) particles and a ceramic binder phase with titanium compounds. The first phase occupies greater than 80% by volume of the self-sintered PCBN compact. The self-sintered PCBN compact has an electrical conductivity sufficient to be cuttable by electrical discharge machining.Type: GrantFiled: September 8, 2011Date of Patent: May 12, 2015Assignee: Element Six LimitedInventors: Yahua Bao, Scott Horman, Xian Yao, Qingyuan Liu
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Patent number: 9028573Abstract: The present disclosure relates to cubic boron nitride (cBN) cutting elements that have high cBN content and that are cuttable by electric discharge machining (EDM). A cutting element according to an embodiment includes a self-sintered polycrystalline cubic boron nitride (PCBN) compact, having a first phase of cubic boron nitride (cBN) particles and a ceramic binder phase with titanium compounds. The first phase occupies greater than 80% by volume of the self-sintered PCBN compact. The self-sintered PCBN compact has an electrical conductivity sufficient to be cuttable by electrical discharge machining.Type: GrantFiled: September 8, 2011Date of Patent: May 12, 2015Assignee: Element Six LimitedInventors: Yahua Bao, Scott Horman, Xian Yao, Qingyuan Liu
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Patent number: 8875813Abstract: A sintered body for cutting tools that includes hard particle phase comprising a plurality of hard particles, wherein at least a portion of the hard phase particles comprise a coating deposited by atomic layer deposition disposed thereon; and a binder phase is disclosed. The hard particles that may be included in the sintered bodies may include tungsten carbide, diamond, and boron nitride particles.Type: GrantFiled: September 21, 2007Date of Patent: November 4, 2014Assignee: Smith International, Inc.Inventors: Guodong Zhan, Youhe Zhang, Feng Yu, Xian Yao, J. Daniel Belnap, Yuelin Shen, Madapusi K. Keshavan
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Patent number: 8798399Abstract: For multi-dimensional temporal-spatial data, EEMD is applied to time series of each spatial location to obtain IMF-like components of different time scales. All the ith IMF-like components of all the time series of all spatial locations are arranged to obtain ith temporal-spatial multi-dimensional IMF-like component. For two-dimensional spatial data or images, the two-dimensional spatial data or images are consider as a collection of one-dimensional series in first direction along locations in second direction. The same approach to the one used in temporal-spatial data decomposition is used to obtain the resulting two-dimensional IMF-like components. Each of the resulted IMF-like components are taken as the new two-dimensional data for further decomposition, but the data is considered as a collection of one-dimensional series in second-direction along locations in first-direction.Type: GrantFiled: March 26, 2009Date of Patent: August 5, 2014Assignee: National Central UniversityInventors: Norden E. Huang, Zhao-Hua Wu, Xian-Yao Chen
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Patent number: 8732113Abstract: A degree of nonlinearity based on intra-wave frequency modulation is proposed here with the value substantially between 0 and 1. The degree of nonlinearity is used for obtaining the state rather than a system. The data required for defining the degree of nonlinearity is the state of the motion or the observed data. For a complicate state with more than one IMF containing prominent energy density, the degree of nonlinearity has also considered the amplitude variations. The combination of the intra-wave frequency modulation and the amplitude variation gives the Combined Degree of nonlinearity. With the definitions of degree of nonlinearity, the nonlinearity characteristic can be quantified, and the discussion of nonlinear effects could be conducted more precisely.Type: GrantFiled: September 23, 2011Date of Patent: May 20, 2014Assignee: National Central UniversityInventors: Norden Eh Huang, Men-Tzung Lo, Zhao-Hua Wu, Xian-Yao Chen
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Publication number: 20130298475Abstract: The present disclosure relates to cubic boron nitride (cBN) cutting elements that have high cBN content and that are cuttable by electric discharge machining (EDM). A cutting element according to an embodiment includes a self-sintered polycrystalline cubic boron nitride (PCBN) compact, having a first phase of cubic boron nitride (cBN) particles and a ceramic binder phase with titanium compounds. The first phase occupies greater than 80% by volume of the self-sintered PCBN compact. The self-sintered PCBN compact has an electrical conductivity sufficient to be cuttable by electrical discharge machining.Type: ApplicationFiled: September 8, 2011Publication date: November 14, 2013Applicant: ELEMENT SIX LIMITEDInventors: Yahua Bao, Scott Horman, Xian Yao, Qingyuan Liu
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Publication number: 20130080378Abstract: A degree of nonlinearity based on intra-wave frequency modulation is proposed here with the value substantially between 0 and 1. The degree of nonlinearity is used for obtaining the state rather than a system. The data required for defining the degree of nonlinearity is the state of the motion or the observed data. For a complicate state with more than one IMF containing prominent energy density, the degree of nonlinearity has also considered the amplitude variations. The combination of the intra-wave frequency modulation and the amplitude variation gives the Combined Degree of nonlinearity. With the definitions of degree of nonlinearity, the nonlinearity characteristic can be quantified, and the discussion of nonlinear effects could be conducted more precisely.Type: ApplicationFiled: September 23, 2011Publication date: March 28, 2013Applicant: NATIONAL CENTRAL UNIVERSITYInventors: Norden Eh Huang, Men-Tzung Lo, Zhao-Hua Wu, Xian-Yao Chen
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Publication number: 20120131856Abstract: The present disclosure relates to the formation of polycrystalline diamond materials with fine diamond grains and nano-sized particles of a grain growth inhibitor. In one embodiment, a method of fabricating a polycrystalline diamond material is provided. The method includes providing a mixture of diamond particles with an average particle size of about 1 micron or less, distributing a plurality of nano-sized titanium-containing particles with the diamond mixture, to act as a grain growth inhibitor, and sintering the mixture of diamond particles and titanium-containing particles at high pressure and high temperature to create a polycrystalline structure of sintered diamond grains. The sintered diamond grains have an average size of about 1 micron or less.Type: ApplicationFiled: November 29, 2011Publication date: May 31, 2012Applicant: SMITH INTERNATIONAL, INC.Inventors: Yahua Bao, Xian Yao, Scott Horman
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Publication number: 20120055099Abstract: The present disclosure relates to cubic boron nitride (cBN) cutting elements that have high cBN content and that are cuttable by electric discharge machining (EDM). A cutting element according to an embodiment includes a self-sintered polycrystalline cubic boron nitride (PCBN) compact, having a first phase of cubic boron nitride (cBN) particles and a ceramic binder phase with titanium compounds. The first phase occupies greater than 80% by volume of the self-sintered PCBN compact. The self-sintered PCBN compact has an electrical conductivity sufficient to be cuttable by electrical discharge machining.Type: ApplicationFiled: September 8, 2011Publication date: March 8, 2012Applicant: SMITH INTERNATIONAL, INC.Inventors: Yahua Bao, Scott Horman, Xian Yao, Qingyuan Liu
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Patent number: 8074865Abstract: Gradient polycrystalline cubic boron nitride (PCBN) materials are provided as well as tools incorporating such materials.Type: GrantFiled: June 25, 2010Date of Patent: December 13, 2011Assignee: Smith International, Inc.Inventor: Xian Yao
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Publication number: 20100288817Abstract: Gradient polycrystalline cubic boron nitride (PCBN) materials are provided as well as tools incorporating such materials.Type: ApplicationFiled: June 25, 2010Publication date: November 18, 2010Inventor: Xian Yao
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Publication number: 20100092028Abstract: For multi-dimensional temporal-spatial data, EEMD is applied to time series of each spatial location to obtain IMF-like components of different time scales. All the ith IMF-like components of all the time series of all spatial locations are arranged to obtain ith temporal-spatial multi-dimensional IMF-like component. For two-dimensional spatial data or images, the two-dimensional spatial data or images are consider as a collection of one-dimensional series in first direction along locations in second direction. The same approach to the one used in temporal-spatial data decomposition is used to obtain the resulting two-dimensional IMF-like components. Each of the resulted IMF-like components are taken as the new two-dimensional data for further decomposition, but the data is considered as a collection of one-dimensional series in second-direction along locations in first-direction.Type: ApplicationFiled: March 26, 2009Publication date: April 15, 2010Applicant: National Central UniversityInventors: Norden E. Huang, Zhao-Hua WU, Xian-Yao CHEN
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Patent number: 7368079Abstract: A method for forming an ultra hard material layer is provided. The method includes disposing a metallic liner inside the periphery of a refractory metal enclosure, introducing ultra hard material feed stock into the enclosure, and sintering using HPHT processing and cooling to form the ultra hard material layer, substantially free of peripheral cracking, chipping and fracturing.Type: GrantFiled: December 9, 2003Date of Patent: May 6, 2008Assignee: Smith International, Inc.Inventors: Xian Yao, David DenBoer, Scott Horman