Patents by Inventor Guitang Chen
Guitang 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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Patent number: 9605202Abstract: The invention belongs to the field of luminescent materials. Disclosed are silicate luminescent materials doped with metal nano particles and preparation methods there for. The silicate luminescent materials doped with metal nano particles are represented by the chemical formula:MLn1-xSiO4:xRE,yA; wherein M is one or two elements selected from Li, Na and K; Ln is one or two elements selected from Y, Sc, La and Lu; A is a metal nano particle selected from Ag, Au, Pt, Pd and Cu; RE is one or two ions selected from Eu, Gd, Tb, Tm, Sm, Ce and Dy; 0<x?0.1; 0<y?0.005. When silicate luminescent materials doped with metal nano particles of the invention are excitated by electron beam, they have higher luminescent efficiency. The luminescent materials are good to be used in field emission light source devices.Type: GrantFiled: March 29, 2012Date of Patent: March 28, 2017Assignee: OCEAN'S KING LIGHTING SCIENCE & TECHNOLOGY CO., LTD.Inventors: Mingjie Zhou, Jun Liu, Rong Wang, Guitang Chen
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Patent number: 9518216Abstract: A manganese-doped magnesium stannate luminescent material, which has a molecular formula of: Mg2-xSnO4:Mnx@SnO2@My, where @ is a coating, where Mg2-xSnO4:Mnx is an outer shell layer, where SnO2 is an intermediate layer shell, where M is an inner core, where M is a metal nanoparticle, where M is at least one selected among Ag, Au, Pt, Pd, and Cu, where the value of x is 0<x?0.05, where y is the molar ratio between M and Sn, and where the value of y is 0<y?1×10?2. The manganese-doped magnesium stannate luminescent material is a core-shell structure luminescent material, has a high internal quantum efficiency, great luminescent intensity, and the advantages of great stability and great luminescent properties. A method for preparing the manganese-doped magnesium stannate luminescent material has simple processes, low equipment requirements, and no pollution, is easy to control and applicable for industrial production, and has a broad application prospect.Type: GrantFiled: May 8, 2012Date of Patent: December 13, 2016Assignee: OCEAN'S KING LIGHTING SCIENCE & TECHNOLOGY CO., LTDInventors: Mingjie Zhou, Rong Wang, Guitang Chen
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Patent number: 9447320Abstract: A titanate luminescent material has a formula of A1-xTiO3:Prx@TiO2@My; wherein A is at least one selected from the group consisting of Ca, Sr, and Ba; M is at least one nanoparticles selected from the group consisting of Ag, Au, Pt, Pd, and Cu; 0<x?0.01; y is the molar ratio between M and Ti in A1-xTiO3:Prx@TiO2, and 0<y?1×10?2; @ represents coating; M is a core, TiO2 is an intermediate layer shell, and A1-xTiO3:Prx is an outer layer shell. The titanate luminescent material has a high stability and a better luminescent performance. A preparation method of the titanate luminescent material is also provided.Type: GrantFiled: May 8, 2012Date of Patent: September 20, 2016Assignees: OCEAN'S KING LIGHTING SCIENCE & TECHNOLOGY CO., LTD., SHENZHEN OCEAN'S KING LIGHTING ENGINEERING CO., LTD.Inventors: Mingjie Zhou, Rong Wang, Guitang Chen
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Patent number: 9447317Abstract: The present invention provides a stannate fluorescent material having a formula: A2-xSnO4:Eux@SnO2@My; wherein A is selected from the group consisting of Ca, Sr, and Ba; M is at least one metal nanoparticles selected from the group consisting of Ag, Au, Pt, Pd, and Cu; 0<x?0.05; y is a mole ratio of M to Sn, and 0<y?1×10?2; @ represents coating, in the stannate fluorescent material, M serves as a core, SnO2 serves as an intermediate layer shell, and A2-xSnO4:Eux serves as an outer layer shell. In the stannate fluorescent material, a core-shell structure is formed by coating at least one metal nanoparticles selected from the group consisting of Ag, Au, Pt, Pd, and Cu, since metal nanoparticles can improve the internal quantum efficiency of the fluorescent material, the stannate fluorescent material exhibits a higher luminous intensity.Type: GrantFiled: July 31, 2012Date of Patent: September 20, 2016Assignees: OCEAN'S KING LIGHTING SCIENCE & TECHNOLOGY CO., LTD., SHENZHEN OCEAN'S KING LIGHTING ENGINEERING CO., LTD.Inventors: Mingjie Zhou, Rong Wang, Guitang Chen
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Patent number: 9416308Abstract: A core-shell structured silicate luminescent material and a preparation method thereof. The molecular formula of the luminescent material is: MLn1-xSiO4:xRE@SiO2; where @ represents a coating, where M is one or two elements among Li, Na, and K, where Ln is one or two elements among Y, Sc, Lu and La, where the value of x is 0<x?0.6; and where RE is one, two, or three elements among Tb, Gd, Sm, Eu, Dy, Ce and Tm. The compositions of the luminescent material are all chemicals of increased chemical stability, and, when subjected to electron beam bombardment for an extended period, provide a stable matrix and do not decompose easily.Type: GrantFiled: May 8, 2012Date of Patent: August 16, 2016Assignees: Ocean's King Lighting Science & Technology Co., Ltd., Shenzhen Ocean's King Lighting Engineering Co., LtdInventors: Mingjie Zhou, Rong Wang, Guitang Chen
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Patent number: 9193901Abstract: Disclosed is a metal nanoparticle-coating silicate luminescent material, which has a molecular formula of Li2Ca1?xSiO4:Tbx@My; where @ represents a coating, M is at least one among Ag, Au, Pt, Pd, and Cu nanoparticles, where 0<x?0.2, where y is the molar ratio between M and Si, and where 0<y?1×10?2. The composition of the silicate coated metal nanoparticle luminescent material is metal nanoparticles coated with Li2Ca1?xSiO4:Tbx, all of which are substances having great chemical stability and having great stability when bombarded by large electron beams. Also provided in the present invention is a method for preparing the metal nanoparticle coating silicate luminescent material.Type: GrantFiled: May 8, 2012Date of Patent: November 24, 2015Assignees: Ocean's King Lighting Science & Technology Co., Ltd., Shenzhen Ocean's King Lighting Engineering Co., LtdInventors: Mingjie Zhou, Rong Wang, Guitang Chen
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Publication number: 20150137038Abstract: A zinc aluminate fluorescent material is provided having a formula: Zn1-xAl2O4:Mnx@Al2O3@My; wherein M is at least one metal nanoparticles selected from the group consisting of Ag, Au, Pt, Pd, and Cu; 0<x?0.1; y is a mole ratio of M to Al, and 0<y?1×10?2; @ represents coating, in the zinc aluminate fluorescent material, M serves as a core, Al2O3 serves as an intermediate layer shell, and Zn1-xAl2O4:Mnx serves as an outer layer shell. In the zinc aluminate fluorescent material, a core-shell structure is formed by coating at least one metal nanoparticles selected from the group consisting of Ag, Au, Pt, Pd, and Cu, since metal nanoparticles can improve the internal quantum efficiency of the fluorescent material, the zinc aluminate fluorescent material exhibits a higher luminous intensity. A method of preparing the zinc aluminate fluorescent material is also provided.Type: ApplicationFiled: July 31, 2012Publication date: May 21, 2015Inventors: Mingjie Zhou, Rong Wang, Guitang Chen
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Publication number: 20150129802Abstract: Disclosed is a metal nanoparticle-coating silicate luminescent material, which has a molecular formula of Li2Ca1-xSiO4:Tbx@My; where @ represents a coating, M is at least one among Ag, Au, Pt, Pd, and Cu nanoparticles, where 0<x?0.2, where y is the molar ratio between M and Si, and where 0<y?1×10?2. The composition of the metal nanoparticle-coating silicate luminescent material is metal nanoparticles coated with Li2Ca1-xSiO4:Tbx, all of which are substances having great chemical stability and having great stability when bombarded by large electron beams. Also provided in the present invention is a method for preparing the metal nanoparticle coating silicate luminescent material.Type: ApplicationFiled: May 8, 2012Publication date: May 14, 2015Applicant: SHENZHEN OCEAN'S KING LIGHTING SCIENCE & TECHNOLOGY CO., LTD.Inventors: Mingjie Zhou, Rong Wang, Guitang Chen
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Publication number: 20150129803Abstract: The present invention provides a stannate fluorescent material having a formula: A2-xSnO4:Eux@SnO2@My; wherein A is selected from the group consisting of Ca, Sr, and Ba; M is at least one metal nanoparticles selected from the group consisting of Ag, Au, Pt, Pd, and Cu; 0<x?0.05; y is a mole ratio of M to Sn, and 0<y?1×10?2; @represents coating, in the stannate fluorescent material, M serves as a core, SnO2 serves as an intermediate layer shell, and A2-xSnO4:Eux serves as an outer layer shell. In the stannate fluorescent material, a core-shell structure is formed by coating at least one metal nanoparticles selected from the group consisting of Ag, Au, Pt, Pd, and Cu, since metal nanoparticles can improve the internal quantum efficiency of the fluorescent material, the stannate fluorescent material exhibits a higher luminous intensity.Type: ApplicationFiled: July 31, 2012Publication date: May 14, 2015Applicants: OCEAN'S KING LIGHTING SCIENCE & TECHNOLOGY CO.,LTD., SHENZHEN OCEAN'S KING LIGHTING ENGINEERING CO., LTD.Inventors: Mingjie Zhou, Rong Wang, Guitang Chen
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Publication number: 20150115201Abstract: Provided in the present invention is a metal nanoparticle-coating titanate fluorescent material, which has a molecular formula of A1-x-yByTiO3:xR@SiO2@Mz, where A is one or two elements selected from Ca, Sr, Ba and Mg, where B is one element selected from Li, Na and K, where R is one or two elements selected from Eu, Gd, Tb, Tm, Sm, Ce, Dy and Mn, where M is one selected from Ag, Au, Pt, Pd and Cu nanoparticles, where 0<x?0.40; 0?y?0.40, where z is the molar ratio of M and SiO2, where 0<z?1×10?2, where @ represents a coating, where M is a core where SiO2 is an intermediate layer shell, and where A1-x-yByTiO3:xR is an outer layer shell. The metal nanoparticle-coating titanate fluorescent material forms a core-shell structure by introducing metal nanoparticles, while the metal nanoparticles generate a Plasmon resonance effect, thus increasing the internal quantum efficiency of the metal nanoparticle-coating titanate fluorescent material, which is provided with increased luminescent intensity.Type: ApplicationFiled: May 8, 2012Publication date: April 30, 2015Applicant: OCEAN'S KING LIGHTING SCIENCE & TECHNOLOGY CO., LTD.Inventors: Mingjie Zhou, Rong Wang, Guitang Chen
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Publication number: 20150102260Abstract: A titanate luminescent material has a formula of A1-x,TiO3:Prx@TiO2@My; wherein A is at least one selected from the group consisting of Ca, Sr, and Ba; M is at least one nanoparticles selected from the group consisting of Ag, Au, Pt, Pd, and Cu; 0<x?0.01; y is the molar ratio between M and Ti in A1-x,TiO3:Prx@TiO2, and 0<y?1×10?2; @ represents coating; M is a core, TiO2 is an intermediate layer shell, and A1-xTiO3:Prx is an outer layer shell. The titanate luminescent material has a high stability and a better luminescent performance. A preparation method of the titanate luminescent material is also provided.Type: ApplicationFiled: May 8, 2012Publication date: April 16, 2015Inventors: Mingjie Zhou, Rong Wang, Guitang Chen
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Publication number: 20150083968Abstract: A manganese-doped magnesium stannate luminescent material, which has a molecular formula of: Mg2-xSnO4:Mnx@SnO2@My, where @ is a coating, where Mg2-xSnO4:Mnx is an outer shell layer, where SnO2 is an intermediate layer shell, where M is an inner core, where M is a metal nanoparticle, where M is at least one selected among Ag, Au, Pt, Pd, and Cu, where the value of x is 0<x?0.05, where y is the molar ratio between M and Sn, and where the value of y is 0<y?1×10?2. The manganese-doped magnesium stannate luminescent material is a core-shell structure luminescent material, has a high internal quantum efficiency, great luminescent intensity, and the advantages of great stability and great luminescent properties. A method for preparing the manganese-doped magnesium stannate luminescent material has simple processes, low equipment requirements, and no pollution, is easy to control and applicable for industrial production, and has a broad application prospect.Type: ApplicationFiled: May 8, 2012Publication date: March 26, 2015Inventors: Mingjie Zhou, Rong Wang, Guitang Chen
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Publication number: 20150083965Abstract: A core-shell structured silicate luminescent material and a preparation method thereof. The molecular formula of the luminescent material is: MLn1-xSiO4:xRE@SiO2; where @ represents a coating, where M is one or two elements among Li, Na, and K, where Ln is one or two elements among Y, Sc, Lu and La, where the value of x is 0<x?0.6; and where RE is one, two, or three elements among Tb, Gd, Sm, Eu, Dy, Ce and Tm. The compositions of the luminescent material are all chemicals of increased chemical stability, and, when subjected to electron beam bombardment for an extended period, provide a stable matrix and do not decompose easily.Type: ApplicationFiled: May 8, 2012Publication date: March 26, 2015Applicants: OCEAN'S KING LIGHTING SCIENCE & TECHNOLOGY CO., LTD., SHENZHEN OCEAN'S KING LIGHTING ENGINEERING CO., LTD.Inventors: Mingjie Zhou, Rong Wang, Guitang Chen
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Publication number: 20140374658Abstract: The invention belongs to the field of luminescent materials. Disclosed are luminescent materials doped with metal nano particles and preparation methods therefor. The luminescent materials doped with metal nano particles are represented by the chemical formula: A5-x(PO4)2SiO4:xRE@My, wherein @ is for coating, M is inner core, M is one metal nano particle selected from Ag, Au, Pt, Pd and Cu; RE is one or two ions selected from Eu, Gd, Tb, Tm, Sm, Ce, Dy and Mn; A is one or two elements selected from Ca, Sr, Ba, Mg, Li, Na and K; x is stoichiometric coefficient, 0<x?1; y is molar ratio of M and Si, 0<y?0.01. When luminescent materials doped with metal nano particles of the invention are excitated by electron beam, they have higher luminescent efficiency. The luminescent materials are good to be used in field emission light source devices.Type: ApplicationFiled: March 29, 2012Publication date: December 25, 2014Applicants: OCEAN's KING LIGHING SCIENCE & TECHNOLOGY CO.,LTD, SHENZHIEN OCEAN'S KING LIGHTING ENGINEERING CO., LTDInventors: Mingjie Zhou, Jun Liu, Rong Wang, Guitang Chen
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Publication number: 20140332721Abstract: The invention belongs to the field of luminescent materials. Disclosed are silicate luminescent materials doped with metal nano particles and preparation methods there for. The silicate luminescent materials doped with metal nano particles are represented by the chemical formula:MLn1-xSiO4:xRE,yA; wherein M is one or two elements selected from Li, Na and K; Ln is one or two elements selected from Y, Sc, La and Lu; A is a metal nano particle selected from Ag, Au, Pt, Pd and Cu; RE is one or two ions selected from Eu, Gd, Tb, Tm, Sm, Ce and Dy; 0<x?0.1; 0<y?0.005. When silicate luminescent materials doped with metal nano particles of the invention are excitated by electron beam, they have higher luminescent efficiency. The luminescent materials are good to be used in field emission light source devices.Type: ApplicationFiled: March 29, 2012Publication date: November 13, 2014Applicants: OCEAN'S KING LIGHTING SCIENCE & TECHNOLOGY CO., LTD., SHENZHEN OCEAN'S KING LIGHTING ENGINEERING CO., LTD.Inventors: Mingjie Zhou, Jun Liu, Rong Wang, Guitang Chen
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Publication number: 20120308760Abstract: A luminescent glass comprises glass matrix. Said glass matrix comprises a glass part and a complex part of glass and fluorescent powder, which is embedded in said glass part. Said complex part of glass and fluorescent powder comprises glass material and fluorescent powder dispersed in said glass material. Said fluorescent powder is of cerium-doped yttrium aluminum garnet series. A method for producing the luminescent glass and a luminescent device comprising the luminescent glass are also provided. The luminescent glass and the luminescent device have good luminescence reliability, high luminescence stability and long service life. The method can be carried out at a relatively low temperature.Type: ApplicationFiled: September 25, 2009Publication date: December 6, 2012Applicant: OCEAN'S KING LIGHTING SCIENCE & TECHNOLOGY CO., LTD.Inventors: Mingjie Zhou, Wenbo Ma, Guitang Chen
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Publication number: 20120225238Abstract: A luminescent glass comprises glass matrix. Said glass matrix comprises a glass part and a complex part of glass and fluorescent powder, which is embedded in said glass part. Said complex part of glass and fluorescent powder comprises glass material and fluorescent powder dispersed in said glass material. A method for producing the luminescent glass and a luminescent device comprising the luminescent glass are also provided. The luminescent glass and the luminescent device have good luminescence reliability, high luminescence stability and long service life. The method can be carried out at a relatively low temperature.Type: ApplicationFiled: September 25, 2009Publication date: September 6, 2012Applicant: OCEAN'S KING LILGHTING SCIENCE & tECHNOLOGY CO., LTDInventors: Mingjie Zhou, Wenbo Ma, Guitang Chen
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Publication number: 20120175661Abstract: A semiconductor light emitting package includes a substrate, an encapsulating material, a semiconductor light emitting chip disposed on the substrate, wires; and an integrated glass-fluorescent powder compound light-emitting structure. The encapsulating material and the integrated glass-fluorescent powder compound light-emitting structure are packaged on the semiconductor light emitting chip, the integrated glass-fluorescent powder compound light-emitting structure is coated on the encapsulating material. The semiconductor light-emitting package has a large light-emitting area, high uniformity which can effectively avoid “halo” phenomenon, and long working life. The present invention also relates to a method for manufacturing semiconductor light emitting package, which can be implemented at low temperature and improve the reliability and the stability of the light-emitting property of the compound light-emitting structure.Type: ApplicationFiled: September 25, 2009Publication date: July 12, 2012Inventors: Mingjie Zhou, Wenbo Ma, Guitang Chen, Chaopu Shi, Yanbo Qiao, Xi Luo