Patents by Inventor Yingyin Kevin Zou
Yingyin Kevin Zou 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: 11501905Abstract: A monolithic multiferroic heterostructure fabricated using CSD (chemical solution deposition) is disclosed. The monolithic heterostructure includes a substrate, a ferromagnetic layer, a ferroelectric layer, and one or more seed layers that enhance crystallinity and promote high frequency performance.Type: GrantFiled: August 31, 2020Date of Patent: November 15, 2022Assignee: BOSTON APPLIED TECHNOLOGIES, INC.Inventors: Xiaomei Guo, Kewen Kevin Li, Yingyin Kevin Zou, Hua Jiang
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Publication number: 20220068536Abstract: A monolithic multiferroic heterostructure fabricated using CSD (chemical solution deposition) is disclosed. The monolithic heterostructure includes a substrate, a ferromagnetic layer, a ferroelectric layer, and one or more seed layers that enhance crystallinity and promote high frequency performance.Type: ApplicationFiled: August 31, 2020Publication date: March 3, 2022Inventors: Xiaomei Guo, Kewen Kevin Li, Yingyin Kevin Zou, Hua Jiang
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Patent number: 10190045Abstract: A nano-composite structure comprises of an amorphous matrix with embedded nano-crystallites. The nano-crystallites are precipitated from the amorphous matrix via heat treatment of a solution mixture of metal salts or metalorganic compounds to an appropriate temperature range and with a suitable duration, or heating of a mixture of non-crystalline compounds. The nano-crystallites are self-assembled in the amorphous matrix without forming agglomerates or distinguished grain boundaries. The nano-composite structure can be used for transparent display, transparent optical ceramics, protection armor, nuclear protection, pulsed power, high voltage electronics, high energy storage system and high power microwave systems.Type: GrantFiled: January 5, 2016Date of Patent: January 29, 2019Inventors: Xiaomei Guo, Kewen Kevin Li, Yingyin Kevin Zou, Hua Jiang
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Publication number: 20170190970Abstract: A nano-composite structure comprises of an amorphous matrix with embedded nano-crystallites. The nano-crystallites are precipitated from the amorphous matrix via heat treatment of a solution mixture of metal salts or metalorganic compounds to an appropriate temperature range and with a suitable duration, or heating of a mixture of non-crystalline compounds. The nano-crystallites are self-assembled in the amorphous matrix without forming agglomerates or distinguished grain boundaries. The nano-composite structure can be used for transparent display, transparent optical ceramics, protection armor, nuclear protection, pulsed power, high voltage electronics, high energy storage system and high power microwave systems.Type: ApplicationFiled: January 5, 2016Publication date: July 6, 2017Inventors: Xiaomei Guo, Kewen Kevin Li, Yingyin Kevin Zou, Hua Jiang
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Patent number: 9507140Abstract: A technique for equatorially mounting a telescope includes a right ascension support having a first end coupled to a counterweight assembly and a second end coupled to a declination support. The right ascension support is coupled to a base and extends downwardly and backwardly from the first end to the second end. The resulting arrangement causes the act of balancing the telescope about its right ascension axis also substantially to balance the telescope about its base.Type: GrantFiled: July 30, 2015Date of Patent: November 29, 2016Assignee: Nanjing iOptron Scientific, Inc. Ltd.Inventors: Ning Xu, Deshun Chen, Yingyin Kevin Zou
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Publication number: 20150338634Abstract: A technique for equatorially mounting a telescope includes a right ascension support having a first end coupled to a counterweight assembly and a second end coupled to a declination support. The right ascension support is coupled to a base and extends downwardly and backwardly from the first end to the second end. The resulting arrangement causes the act of balancing the telescope about its right ascension axis also substantially to balance the telescope about its base.Type: ApplicationFiled: July 30, 2015Publication date: November 26, 2015Inventors: Ning XU, Deshun CHEN, Yingyin Kevin ZOU
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Patent number: 9128292Abstract: A technique for equatorially mounting a telescope includes a right ascension support having a first end coupled to a counterweight assembly and a second end coupled to a declination support. The right ascension support is coupled to a base and extends downwardly and backwardly from the first end to the second end. The resulting arrangement causes the act of balancing the telescope about its right ascension axis also substantially to balance the telescope about its base.Type: GrantFiled: May 21, 2013Date of Patent: September 8, 2015Assignee: Nanjing iOptron Scientific, Inc. Ltd.Inventors: Ning Xu, Deshun Chen, Yingyin Kevin Zou
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Publication number: 20140111853Abstract: A technique for equatorially mounting a telescope includes a right ascension support having a first end coupled to a counterweight assembly and a second end coupled to a declination support. The right ascension support is coupled to a base and extends downwardly and backwardly from the first end to the second end. The resulting arrangement causes the act of balancing the telescope about its right ascension axis also substantially to balance the telescope about its base.Type: ApplicationFiled: May 21, 2013Publication date: April 24, 2014Applicant: Nanjing iOptron Scientific, Inc. Ltd.Inventors: Ning XU, Deshun CHEN, Yingyin Kevin ZOU
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Patent number: 8514380Abstract: A polarization imaging apparatus measures the Stokes image of a sample. The apparatus consists of an optical lens set, a first variable phase retarder (VPR) with its optical axis aligned 22.5°, a second variable phase retarder with its optical axis aligned 45°, a linear polarizer, a imaging sensor for sensing the intensity images of the sample, a controller and a computer. Two variable phase retarders were controlled independently by a computer through a controller unit which generates a sequential of voltages to control the phase retardations of the first and second variable phase retarders. A auto-calibration procedure was incorporated into the polarization imaging apparatus to correct the misalignment of first and second VPRs, as well as the half-wave voltage of the VPRs. A set of four intensity images, I0, I1, I2 and I3 of the sample were captured by imaging sensor when the phase retardations of VPRs were set at (0,0), (?,0), (?,?) and (?/2,?), respectively.Type: GrantFiled: April 19, 2010Date of Patent: August 20, 2013Assignee: Boston Applied Technologies, Inc.Inventors: Yingyin Kevin Zou, Hongzhi Zhao, Qiushui Chen
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Patent number: 8124254Abstract: A heterostructure of multiferroics or magnetoelectrics (ME) was disclosed. The film has both ferromagnetic and ferroelectric properties, as well as magneto-optic (MO) and electro-optic (EO) properties. Oxide buffer layers were employed to allow grown a cracking-free heterostructure a solution coating method.Type: GrantFiled: December 18, 2007Date of Patent: February 28, 2012Assignee: Boston Applied Technologies, IncInventors: Yingyin Kevin Zou, Hua Jiang, Kewen Kevin Li, Xiaomei Guo
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Patent number: 7791791Abstract: The present invention provides a rare-earth ions doped, especially erbium and ytterbium doped transparent electro-optic gain ceramic material consisting lead, zirconium, titanium and lanthanum. The electro-optic gain ceramic material either has a linear electro-optic coefficient or a quadratic electro-optic coefficient, which is greater than about 0.3×10?16 m2/V2 for the latter, a propagation loss of less than about 0.3 dB/mm, and an optical gain of great than 1.5 dB/mm at a wavelength of about 1550 nm while optically pumped by a 1.4 watts diode laser at a wavelength of 970 nm at 20° C. The present invention also provides electro-optic devices including a rare-earth ions doped, especially erbium and ytterbium doped, transparent electro-optic gain ceramic material consisting lead, zirconium, titanium and lanthanum.Type: GrantFiled: July 10, 2007Date of Patent: September 7, 2010Assignee: Boston Applied Technologies, IncorporatedInventors: Hua Jiang, Yingyin Kevin Zou, Kewen Kevin Li
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Publication number: 20100201969Abstract: A polarization imaging apparatus measures the Stokes image of a sample. The apparatus consists of an optical lens set, a first variable phase retarder (VPR) with its optical axis aligned 22.5°, a second variable phase retarder with its optical axis aligned 45°, a linear polarizer, a imaging sensor for sensing the intensity images of the sample, a controller and a computer. Two variable phase retarders were controlled independently by a computer through a controller unit which generates a sequential of voltages to control the phase retardations of the first and second variable phase retarders. A auto-calibration procedure was incorporated into the polarization imaging apparatus to correct the misalignment of first and second VPRs, as well as the half-wave voltage of the VPRs. A set of four intensity images, I0, I1, I2 and I3 of the sample were captured by imaging sensor when the phase retardations of VPRs were set at (0,0), (?,0), (?,?) and (?/2,?), respectively.Type: ApplicationFiled: April 19, 2010Publication date: August 12, 2010Inventors: Yingyin Kevin Zou, Hongzhi Zhao, Qiushui Chen
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Patent number: 7701561Abstract: A polarization imaging apparatus measures the Stokes image of a sample. The apparatus consists of an optical lens set 11, a linear polarizer 14 with its optical axis 18, a first variable phase retarder 12 with its optical axis 16 aligned 22.5° to axis 18, a second variable phase retarder 13 with its optical axis 17 aligned 45° to axis 18, a imaging sensor 15 for sensing the intensity images of the sample, a controller 101 and a computer 102. Two variable phase retarders 12 and 13 were controlled independently by a computer 102 through a controller unit 101 which generates a sequential of voltages to control the phase retardations of VPRs 12 and 13. A set of four intensity images, I0, I1, I2 and I3 of the sample were captured by imaging sensor 15 when the phase retardations of VPRs 12 and 13 were set at (0,0), (?,0), (?,?) and (?/2,?), respectively Then four Stokes components of a Stokes image, S0, S1, S2 and S3 were calculated using the four intensity images.Type: GrantFiled: February 2, 2007Date of Patent: April 20, 2010Assignee: Boston Applied Technologies IncorporatedInventors: Yingyin Kevin Zou, Qiushui Chen, Hongzhi Zhao
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Publication number: 20090168150Abstract: The present invention provides a neodymium doped, transparent electro-optic gain ceramic material consisting lead, zirconium, titanium and lanthanum. The electro-optic gain ceramic material either has a linear electro-optic coefficient or a quadratic electro-optic coefficient, which is greater than about 0.3×10?16 m2/V2 for the latter, a propagation loss of less than about 0.3 dB/mm, and an optical gain of great than 2 dB/mm at a wavelength of about 1064 nm while optically pumped by a 2 watts diode laser at a wavelength of 802 nm at 20° C. The present invention also provides electro-optic devices including a neodymium doped, transparent electro-optic gain ceramic material consisting lead, zirconium, titanium and lanthanum. The present invention also provides lossless optical devices and amplifiers with an operating wavelength in the range of 1040 nm to 1100 nm while optically pumped at a wavelength in the range of 794 nm to 810 nm.Type: ApplicationFiled: February 3, 2009Publication date: July 2, 2009Inventors: Kewen Kevin Li, Hua Jiang, Yingyin Kevin Zou
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Publication number: 20080151358Abstract: The present invention provides a rare-earth ions doped, especially erbium and ytterbium doped transparent electro-optic gain ceramic material consisting lead, zirconium, titanium and lanthanum. The electro-optic gain ceramic material either has a linear electro-optic coefficient or a quadratic electro-optic coefficient, which is greater than about 0.3×10?16 m2/V2 for the latter, a propagation loss of less than about 0.3 dB/mm, and an optical gain of great than 1.5 dB/mm at a wavelength of about 1550 nm while optically pumped by a 1.4 watts diode laser at a wavelength of 970 nm at 20° C. The present invention also provides electro-optic devices including a rare-earth ions doped, especially erbium and ytterbium doped, transparent electro-optic gain ceramic material consisting lead, zirconium, titanium and lanthanum.Type: ApplicationFiled: July 10, 2007Publication date: June 26, 2008Inventors: Hua Jiang, Yingyin Kevin Zou, Kewen Kevin Li
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Publication number: 20080145693Abstract: A heterostructure of multiferroics or magnetoelectrics (ME) was disclosed. The film has both ferromagnetic and ferroelectric properties, as well as magneto-optic (MO) and electro-optic (EO) properties. Oxide buffer layers were employed to allow grown a cracking-free heterostructure a solution coating method.Type: ApplicationFiled: December 18, 2007Publication date: June 19, 2008Inventors: Yingyin Kevin Zou, Hua Jiang, Kewen Kevin Li, Xiaomei Guo
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Publication number: 20070285763Abstract: The present invention provides a neodymium doped, transparent electro-optic gain ceramic material consisting lead, zirconium, titanium and lanthanum. The electro-optic gain ceramic material either has a linear electro-optic coefficient or a quadratic electro-optic coefficient, which is greater than about 0.3×10?16 m2/V2 for the latter, a propagation loss of less than about 0.3 dB/mm, and an optical gain of great than 2 dB/mm at a wavelength of about 1064 nm while optically pumped by a 2 watts diode laser at a wavelength of 802 nm at 20° C. The present invention also provides electro-optic devices including a neodymium doped, transparent electro-optic gain ceramic material consisting lead, zirconium, titanium and lanthanum. The present invention also provides lossless optical devices and amplifiers with an operating wavelength in the range of 1040 nm to 1100 nm while optically pumped at a wavelength in the range of 794 nm to 810 nm.Type: ApplicationFiled: September 27, 2006Publication date: December 13, 2007Inventors: Kewen Kevin Li, Hua Jiang, Yingyin Kevin Zou