Patents by Inventor Xiaoqing Duan

Xiaoqing Duan 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: 11967442
    Abstract: A skin layer of a superconducting tape has a woven mesh structure and is disposed on a surface of a superconducting tape. The skin layer of a superconducting tape solves the problem where a vapor layer generated when a superconductor is in a normal resistive state greatly reduces the efficiency of a heat exchange between the superconductor and liquid nitrogen. Further provided are the superconducting tape and a superconducting coil.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: April 23, 2024
    Assignees: GUANGDONG POWER GRID CO., LTD., ELECTRIC POWER RESEARCH INSTITUTE OF GUANGDONG POWER GRID CO., LTD
    Inventors: Xinhui Duan, Lianhong Zhong, Yongfa Zhao, Meng Song, Bing Zhao, Xiaoqing Xiao, Chao Sheng, Jian Zhang, Li Li, Yunsong Luo
  • Patent number: 11466818
    Abstract: The invention provides a lighting unit having an internal controller. The external power connector of the lighting unit (i.e. the electrical connector plug for connecting the lighting unit to an electrical lighting socket) comprises a manual adjustment element for selecting a setting of the controller. Thus, the manual adjustment element, which functions as a manual user interface, is integrated into the electrical plug part of the lighting unit.
    Type: Grant
    Filed: October 12, 2021
    Date of Patent: October 11, 2022
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Chengrui Yan, Mo Shen, Xiaoqing Duan, Yuanqiang Liu
  • Publication number: 20220120387
    Abstract: The invention provides a lighting unit having an internal controller. The external power connector of the lighting unit (i.e. the electrical connector plug for connecting the lighting unit to an electrical lighting socket) comprises a manual adjustment element for selecting a setting of the controller. Thus, the manual adjustment element, which functions as a manual user interface, is integrated into the electrical plug part of the lighting unit.
    Type: Application
    Filed: October 12, 2021
    Publication date: April 21, 2022
    Inventors: CHENGRUI YAN, MO SHEN, XIAOQING DUAN, YUANQIANG LIU
  • Patent number: 10865974
    Abstract: A solid state lighting lamp (10) is disclosed comprising a plurality of heatsink modules (40) each extending in alignment with a central axis (15) of the lamp, each heatsink module carrying a plurality of solid state lighting elements (50); and a body (20) extending in alignment with said central axis and delimiting an inner volume of the lamp, wherein the heatsink modules are affixed to said body. The body is the optical housing, i.e. the light exit window of the lamp.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: December 15, 2020
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Xiaoqing Duan, Zhigang Pei, Linggen Mo
  • Publication number: 20200088396
    Abstract: A solid state lighting lamp (10) is disclosed comprising a plurality of heatsink modules (40) each extending in alignment with a central axis (15) of the lamp, each heatsink module carrying a plurality of solid state lighting elements (50); and a body (20) extending in alignment with said central axis and delimiting an inner volume of the lamp, wherein the heatsink modules are affixed to said body. The body is the optical housing, i.e. the light exit window of the lamp.
    Type: Application
    Filed: June 1, 2018
    Publication date: March 19, 2020
    Inventors: XIAOQING DUAN, ZHIGANG PEI, LINGGEN MO
  • Publication number: 20200032964
    Abstract: A lighting device (100) comprises an elongate tubular body (102) with a carrier (104) located inside the tubular body. The carrier comprises a first section (106) and a second section (108), each of which carries at least one solid state lighting element (110). The first section extends in the elongation direction of the tubular body. The second section extends from an end of the first section at an angle with respect to the first section such that the second section and the tubular body at least partially delimit an internal cavity of the tubular body. Further provided is a luminaire comprising said lighting device.
    Type: Application
    Filed: March 26, 2018
    Publication date: January 30, 2020
    Inventors: Xiaoqing DUAN, Yun WANG, Linggen MO
  • Patent number: 10132449
    Abstract: Various embodiments of the present application provide a lamp device, an LED lamp, and a luminaire. The lamp device according to the embodiments of the present utility mode comprises: a lamp cap having a central pin (21, 211) for providing an electrical connection to the lamp device; and a printed circuit board at least partially located within the lamp cap, wherein a lamp driver (12) is mounted on the printed circuit board; characterized in that a bottom edge of said printed circuit board includes a notch (16, 161) comprising a first contact electrically contacting said central pin. The lamp device according to the present application improves the assembly of the lamp device and enhances the production efficiency.
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: November 20, 2018
    Assignee: PHILIPS LIGHTING HOLDING B.V.
    Inventors: Bao Wang, Xiaoqing Duan, Yan Xiong
  • Patent number: 9970598
    Abstract: There is provided a lighting device (100) comprising a housing comprising a frangible light exit window (110) and a fitting (120) including a first electrical connector (122) inside said housing. Within the housing there is a carrier assembly (130) comprising a plurality of SSL elements (132), and a second electrical connector (134) in contact with the first electrical connector (122). The second electrical connector (134) is held in contact with the first electrical connector (122) by the light exit window (110). This lighting device is relatively safe as if the light exit window (110) breaks the electrical components of the carrier assembly (130) may not be live.
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: May 15, 2018
    Assignee: PHILIPS LIGHTING HOLDING B.V.
    Inventors: Robertus Leonardus Tousain, Jean-Paul Jacobs, Xiaoqing Duan
  • Patent number: 9816698
    Abstract: A lighting device (1) comprising a driver (7) arranged at a base (2) of the lighting device (1), a heat sink (14) arranged at a portion (3) of the lighting device (1), separate from the driver (7), a light source (13) mounted to the heat sink (14), and a wire (10) arranged to electrically connect the light source (13) to the driver (7), wherein a portion of the wire (10) extending from the base (2) to the portion of the lighting device (1) is arranged to be exposed to light from the light source (13). The present embodiment is advantageous in that the thermal performance is improved and the lifetime of the lighting device (1) is increased. Further, the exposed wire (10) may be illuminated by the light source (13) and visible from outside the lighting device (1), thereby having the appearance of a filament.
    Type: Grant
    Filed: May 14, 2013
    Date of Patent: November 14, 2017
    Assignee: PHILIPS LIGHTING HOLDING B.V.
    Inventors: Bao Wang, Xiaoqing Duan, Rosen Guo, Chuan Yuan
  • Publication number: 20170227170
    Abstract: Various embodiments of the present application provide a lamp device, an LED lamp, and a luminaire. The lamp device according to the embodiments of the present utility mode comprises: a lamp cap having a central pin (21, 211) for providing an electrical connection to the lamp device; and a printed circuit board at least partially located within the lamp cap, wherein a lamp driver (12) is mounted on the printed circuit board; characterized in that a bottom edge of said printed circuit board includes a notch (16, 161) comprising a first contact electrically contacting said central pin. The lamp device according to the present application improves the assembly of the lamp device and enhances the production efficiency.
    Type: Application
    Filed: March 16, 2015
    Publication date: August 10, 2017
    Inventors: Bao WANG, Xiaoqing DUAN, Yan XIONG
  • Publication number: 20170138541
    Abstract: There is provided a lighting device (100) comprising a housing comprising a frangible light exit window (110) and a fitting (120) including a first electrical connector (122) inside said housing. Within the housing there is a carrier assembly (130) comprising a plurality of SSL elements (132), and a second electrical connector (134) in contact with the first electrical connector (122). The second electrical connector (134) is held in contact with the first electrical connector (122) by the light exit window (110). This lighting device is relatively safe as if the light exit window (110) breaks the electrical components of the carrier assembly (130) may not be live.
    Type: Application
    Filed: April 28, 2015
    Publication date: May 18, 2017
    Inventors: ROBERTUS LEONARDUS TOUSAIN, JEAN-PAUL JACOBS, XIAOQING DUAN
  • Patent number: 9249965
    Abstract: There is provided a lighting device 100 comprising a light source, a driver arranged for powering the light source, which is separated in space from the light source. The lighting device has two separate heat sinks, a light source heat sink 112 to which the light source is thermally coupled, and a driver heat sink 115 to which the driver is thermally coupled. The light source heat sink and the driver heat sink are separated by an air gap 114 to provide thermal decoupling of the light source heat sink and the driver heat sink.
    Type: Grant
    Filed: January 11, 2012
    Date of Patent: February 2, 2016
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Berend Jan Willem Ter Weeme, Remco Yuri Van De Moesdijk, Marcus Joannes Van Den Bosch, Yan Xiong, Xiaoqing Duan
  • Patent number: 9175817
    Abstract: The invention relates to a light source (10, 12) comprising a light emitter (20) arranged inside a translucent outer envelope (30, 32). The light emitter comprising a light emitting device (40) and comprising a translucent inner envelope (50) at least partially surrounding the light emitting device, the translucent inner envelope comprising a diffuser. A diameter (di) of the translucent inner envelope is smaller than a diameter (do) of the translucent outer envelope. The translucent outer envelope is connected to a base (60) not being translucent. The translucent outer envelope further comprises a symmetry axis (S). An imaginary base-plane (P) is defined substantially perpendicular to the symmetry axis (S) and intersects with a connection point (C) being part of the translucent outer envelope.
    Type: Grant
    Filed: April 23, 2010
    Date of Patent: November 3, 2015
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Christoph Gerard August Hoelen, Roger Cornelis Petrus Hoskens, Rene Theodorus Wegh, Nibu Ampalathumkal George, Xiaoqing Duan, Timothy Howard Rider, Lei Shi, Johannes Petrus Maria Ansems
  • Publication number: 20150138777
    Abstract: A lighting device (1) comprising a driver (7) arranged at a base (2) of the lighting device (1), a heat sink (14) arranged at a portion (3) of the lighting device (1), separate from the driver (7), a light source (13) mounted to the heat sink (14), and a wire (10) arranged to electrically connect the light source (13) to the driver (7), wherein a portion of the wire (10) extending from the base (2) to the portion of the lighting device (1) is arranged to be exposed to light from the light source (13). The present embodiment is advantageous in that the thermal performance is improved and the lifetime of the lighting device (1) is increased. Further, the exposed wire (10) may be illuminated by the light source (13) and visible from outside the lighting device (1), thereby having the appearance of a filament.
    Type: Application
    Filed: May 14, 2013
    Publication date: May 21, 2015
    Applicant: Koninkljke Philips N.V.
    Inventors: Bao Wang, Xiaoqing Duan, Guangliang Guo, Chuan Yuan
  • Patent number: 8664838
    Abstract: The invention provides an illumination apparatus (10) and a method of assembling the illumination apparatus. The illumination apparatus comprises a light source (101) having a plurality of LED arrays, wherein at least two of the plurality of LED arrays have different lumen degradations as a function of junction temperature of the respective LED arrays; and a heat dissipation unit (102) configured to be capable of dissipating heat generated by the light source, wherein the heat dissipation unit is mounted on a first surface of the light source in such a way that there is a gap between the first surface and the heat dissipation unit when the light source is not in operation, and the gap is narrowed or can be deemed to disappear when the light source reaches a preset temperature, so that the heat dissipation efficiency of the heat dissipation unit is improved.
    Type: Grant
    Filed: December 8, 2011
    Date of Patent: March 4, 2014
    Assignee: Koninklijke Philips N.V.
    Inventors: Chuan Yuan, Xiaoqing Duan, Yan Xiong
  • Publication number: 20140001956
    Abstract: There is provided a lighting device 100 comprising a light source, a driver arranged for powering the light source, which is separated in space from the light source. The lighting device has two separate heat sinks, a light source heat sink 112 to which the light source is thermally coupled, and a driver heat sink 115 to which the driver is thermally coupled. The light source heat sink and the driver heat sink are separated by an air gap 114 to provide thermal decoupling of the light source heat sink and the driver heat sink.
    Type: Application
    Filed: January 11, 2012
    Publication date: January 2, 2014
    Applicant: KONINKLIJKE PHILIPS N.V.
    Inventors: Berend Jan Willem Ter Weeme, Remco Yuri Van De Moesdijk, Marcus Joannes Van Den Bosch, Yan Xiong, Xiaoqing Duan
  • Publication number: 20130257261
    Abstract: The invention provides an illumination apparatus (10) and a method of assembling the illumination apparatus. The illumination apparatus comprises a light source (101) having a plurality of LED arrays, wherein at least two of the plurality of LED arrays have different lumen degradations as a function of junction temperature of the respective LED arrays; and a heat dissipation unit (102) configured to be capable of dissipating heat generated by the light source, wherein the heat dissipation unit is mounted on a first surface of the light source in such a way that there is a gap between the first surface and the heat dissipation unit when the light source is not in operation, and the gap is narrowed or can be deemed to disappear when the light source reaches a preset temperature, so that the heat dissipation efficiency of the heat dissipation unit is improved.
    Type: Application
    Filed: December 8, 2011
    Publication date: October 3, 2013
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Chuan Yuan, Xiaoqing Duan, Yan Xiong
  • Publication number: 20120155059
    Abstract: The invention relates to a light source (10, 12) comprising a light emitter (20) arranged inside a translucent outer envelope (30, 32). The light emitter comprising a light emitting device (40) and comprising a translucent inner envelope (50) at least partially surrounding the light emitting device, the translucent inner envelope comprising a diffuser. A diameter (di) of the translucent inner envelope is smaller than a diameter (do) of the translucent outer envelope. The translucent outer envelope is connected to a base (60) not being translucent. The translucent outer envelope further comprises a symmetry axis (S). An imaginary base-plane (P) is defined substantially perpendicular to the symmetry axis (S) and intersects with a connection point (C) being part of the translucent outer envelope.
    Type: Application
    Filed: April 23, 2010
    Publication date: June 21, 2012
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Christoph Gerard August Hoelen, Roger Cornelis Petrus Hoskens, Rene Theodorus Wegh, Nibu Ampalathumkal George, Xiaoqing Duan, Timothy Howard Rider, Lei Shi, Johannes Petrus Maria Ansems
  • Patent number: D902447
    Type: Grant
    Filed: May 3, 2019
    Date of Patent: November 17, 2020
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Wang Li, Xiaoqing Duan, Mo Ling Gen, Yun Fei Duan, Wang Tzu Wei, Yong Joon Hwang, Zhong Wang, Steven Fei
  • Patent number: D940914
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: January 11, 2022
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Li Wang, Lan Deng, Xiaoqing Duan, Ling Gen Mo