Patents by Inventor Hangfeng Ji

Hangfeng Ji 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: 11602102
    Abstract: The invention provides a lighting system comprising (i) a lighting device comprising a plurality of light sources for application in a horticulture production facility, wherein the light sources are configured to illuminate with horticulture light crops, wherein the lighting system further comprises (ii) a control unit configured to control the light intensity of local light at a location, wherein the local light is the sum of the horticulture light and light at the location originating from an optional other light source, and wherein the control unit is configured to prevent a change in the photosynthetic photon flux density (PPFD) of the local light at the location of on average more than 50 nmol/sec/m2 over a predetermined period of time selected from the range of equal to or smaller than 5 minutes by controlling the contribution of the horticulture light to the local light.
    Type: Grant
    Filed: September 15, 2020
    Date of Patent: March 14, 2023
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Celine Catherine Sarah Nicole, Hangfeng Ji, Cristina Tanase, Gabriel-Eugen Onac, Marc Andre Peters
  • Publication number: 20210000020
    Abstract: The invention provides a lighting system comprising (i) a lighting device comprising a plurality of light sources for application in a horticulture production facility, wherein the light sources are configured to illuminate with horticulture light crops, wherein the lighting system further comprises (ii) a control unit configured to control the light intensity of local light at a location, wherein the local light is the sum of the horticulture light and light at the location originating from an optional other light source, and wherein the control unit is configured to prevent a change in the photosynthetic photon flux density (PPFD) of the local light at the location of on average more than 50 ?mol/sec/m2 over a predetermined period of time selected from the range of equal to or smaller than 5 minutes by controlling the contribution of the horticulture light to the local light.
    Type: Application
    Filed: September 15, 2020
    Publication date: January 7, 2021
    Inventors: CELINE CATHERINE SARAH NICOLE, HANGFENG JI, CRISTINA TANASE, GABRIEL-EUGEN ONAC, MARC ANDRE PETERS
  • Patent number: 10798878
    Abstract: The invention provides a lighting system comprising (i) a lighting device comprising a plurality of light sources for application in a horticulture production facility, wherein the light sources are configured to illuminate with horticulture light crops, wherein the lighting system further comprises (ii) a control unit configured to control the light intensity of local light at a location, wherein the local light is the sum of the horticulture light and light at the location originating from an optional other light source, and wherein the control unit is configured to prevent a change in the photosynthetic photon flux density (PPFD) of the local light at the location of on average more than 50 ?mol/sec/m2 over a predetermined period of time selected from the range of equal to or smaller than 5 minutes by controlling the contribution of the horticulture light to the local light.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: October 13, 2020
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Céline Catherine Sarah Nicole, Hangfeng Ji, Cristina Tanase, Gabriel-Eugen Onac, Marc Andre Peters
  • Publication number: 20150230409
    Abstract: The invention provides a lighting system comprising (i) a lighting device comprising a plurality of light sources for application in a horticulture production facility, wherein the light sources are configured to illuminate with horticulture light crops, wherein the lighting system further comprises (ii) a control unit configured to control the light intensity of local light at a location, wherein the local light is the sum of the horticulture light and light at the location originating from an optional other light source, and wherein the control unit is configured to prevent a change in the photosynthetic photon flux density (PPFD) of the local light at the location of on average more than 50 ?mol/sec/m2 over a predetermined period of time selected from the range of equal to or smaller than 5 minutes by controlling the contribution of the horticulture light to the local light.
    Type: Application
    Filed: August 28, 2013
    Publication date: August 20, 2015
    Inventors: Céline Catherine Sarah Nicole, Hangfeng Ji, Cristina Tanase, Gabriel-Eugen Onac, Marc Andre Peters
  • Patent number: 9113584
    Abstract: The present invention relates to a printed circuit board assembly (10), said printed circuit board assembly comprising: a substrate (100); two or more electronic components which are categorized, wherein each component is secured to the substrate by securing means having a different predetermined thermal-release temperature, depending on which category said component belongs to. The invention furthermore relates to a method of assembling the printed circuit board assembly and a method of disassembling the printed circuit board assembly according to the invention.
    Type: Grant
    Filed: January 30, 2012
    Date of Patent: August 18, 2015
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Hangfeng Ji, Abraham Rudolf Balkenende, Hong Chen
  • Publication number: 20130314885
    Abstract: The present invention relates to a printed circuit board assembly (10), said printed circuit board assembly comprising: a substrate (100); two or more electronic components which are categorized, wherein each component is secured to the substrate by securing means having a different predetermined thermal-release temperature, depending on which category said component belongs to. The invention furthermore relates to a method of assembling the printed circuit board assembly and a method of disassembling the printed circuit board assembly according to the invention.
    Type: Application
    Filed: January 30, 2012
    Publication date: November 28, 2013
    Applicant: KONINKLIJKE PHILIPS N.V.
    Inventors: Hangfeng Ji, Abraham Rudolf Balkenende, Hong Chen