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).

  • Patent number: 9605202
    Abstract: 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: Grant
    Filed: March 29, 2012
    Date of Patent: March 28, 2017
    Assignee: OCEAN'S KING LIGHTING SCIENCE & TECHNOLOGY CO., LTD.
    Inventors: Mingjie Zhou, Jun Liu, Rong Wang, Guitang Chen
  • Patent number: 9518216
    Abstract: 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: Grant
    Filed: May 8, 2012
    Date of Patent: December 13, 2016
    Assignee: OCEAN'S KING LIGHTING SCIENCE & TECHNOLOGY CO., LTD
    Inventors: Mingjie Zhou, Rong Wang, Guitang Chen
  • Patent number: 9447317
    Abstract: 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: Grant
    Filed: July 31, 2012
    Date of Patent: September 20, 2016
    Assignees: OCEAN'S KING LIGHTING SCIENCE & TECHNOLOGY CO., LTD., SHENZHEN OCEAN'S KING LIGHTING ENGINEERING CO., LTD.
    Inventors: Mingjie Zhou, Rong Wang, Guitang Chen
  • Patent number: 9447320
    Abstract: 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: Grant
    Filed: May 8, 2012
    Date of Patent: September 20, 2016
    Assignees: OCEAN'S KING LIGHTING SCIENCE & TECHNOLOGY CO., LTD., SHENZHEN OCEAN'S KING LIGHTING ENGINEERING CO., LTD.
    Inventors: Mingjie Zhou, Rong Wang, Guitang Chen
  • Patent number: 9416308
    Abstract: 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: Grant
    Filed: May 8, 2012
    Date of Patent: August 16, 2016
    Assignees: Ocean's King Lighting Science & Technology Co., Ltd., Shenzhen Ocean's King Lighting Engineering Co., Ltd
    Inventors: Mingjie Zhou, Rong Wang, Guitang Chen
  • Patent number: 9193901
    Abstract: 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: Grant
    Filed: May 8, 2012
    Date of Patent: November 24, 2015
    Assignees: Ocean's King Lighting Science & Technology Co., Ltd., Shenzhen Ocean's King Lighting Engineering Co., Ltd
    Inventors: Mingjie Zhou, Rong Wang, Guitang Chen
  • Publication number: 20150137038
    Abstract: 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: Application
    Filed: July 31, 2012
    Publication date: May 21, 2015
    Inventors: Mingjie Zhou, Rong Wang, Guitang Chen
  • Publication number: 20150129803
    Abstract: 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: Application
    Filed: July 31, 2012
    Publication date: May 14, 2015
    Applicants: OCEAN'S KING LIGHTING SCIENCE & TECHNOLOGY CO.,LTD., SHENZHEN OCEAN'S KING LIGHTING ENGINEERING CO., LTD.
    Inventors: Mingjie Zhou, Rong Wang, Guitang Chen
  • Publication number: 20150129802
    Abstract: 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: Application
    Filed: May 8, 2012
    Publication date: May 14, 2015
    Applicant: SHENZHEN OCEAN'S KING LIGHTING SCIENCE & TECHNOLOGY CO., LTD.
    Inventors: Mingjie Zhou, Rong Wang, Guitang Chen
  • Publication number: 20150115201
    Abstract: 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: Application
    Filed: May 8, 2012
    Publication date: April 30, 2015
    Applicant: OCEAN'S KING LIGHTING SCIENCE & TECHNOLOGY CO., LTD.
    Inventors: Mingjie Zhou, Rong Wang, Guitang Chen
  • Publication number: 20150102260
    Abstract: 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: Application
    Filed: May 8, 2012
    Publication date: April 16, 2015
    Inventors: Mingjie Zhou, Rong Wang, Guitang Chen
  • Publication number: 20150083968
    Abstract: 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: Application
    Filed: May 8, 2012
    Publication date: March 26, 2015
    Inventors: Mingjie Zhou, Rong Wang, Guitang Chen
  • Publication number: 20150083965
    Abstract: 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: Application
    Filed: May 8, 2012
    Publication date: March 26, 2015
    Applicants: OCEAN'S KING LIGHTING SCIENCE & TECHNOLOGY CO., LTD., SHENZHEN OCEAN'S KING LIGHTING ENGINEERING CO., LTD.
    Inventors: Mingjie Zhou, Rong Wang, Guitang Chen
  • Publication number: 20140374658
    Abstract: 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: Application
    Filed: March 29, 2012
    Publication date: December 25, 2014
    Applicants: OCEAN's KING LIGHING SCIENCE & TECHNOLOGY CO.,LTD, SHENZHIEN OCEAN'S KING LIGHTING ENGINEERING CO., LTD
    Inventors: Mingjie Zhou, Jun Liu, Rong Wang, Guitang Chen
  • Publication number: 20140332721
    Abstract: 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: Application
    Filed: March 29, 2012
    Publication date: November 13, 2014
    Applicants: 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
  • Publication number: 20120308760
    Abstract: 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: Application
    Filed: September 25, 2009
    Publication date: December 6, 2012
    Applicant: OCEAN'S KING LIGHTING SCIENCE & TECHNOLOGY CO., LTD.
    Inventors: Mingjie Zhou, Wenbo Ma, Guitang Chen
  • Publication number: 20120225238
    Abstract: 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: Application
    Filed: September 25, 2009
    Publication date: September 6, 2012
    Applicant: OCEAN'S KING LILGHTING SCIENCE & tECHNOLOGY CO., LTD
    Inventors: Mingjie Zhou, Wenbo Ma, Guitang Chen
  • Publication number: 20120175661
    Abstract: 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: Application
    Filed: September 25, 2009
    Publication date: July 12, 2012
    Inventors: Mingjie Zhou, Wenbo Ma, Guitang Chen, Chaopu Shi, Yanbo Qiao, Xi Luo