Patents by Inventor Soogeun YOO

Soogeun YOO 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).

  • Lighting device
    Patent number: 10638582
    Abstract: Disclosed is a light emitting device having a configuration that, when a magnitude of an input voltage is greater than a minimum light emitting voltage, all light emitting devices are turned on regardless of the magnitude of the voltage. As the magnitude of the voltage is smaller, the light emitting devices are connected in parallel. As the magnitude of the voltage is greater, the light emitting devices are serially connected.
    Type: Grant
    Filed: June 4, 2018
    Date of Patent: April 28, 2020
    Assignee: LUMENS CO., LTD.
    Inventors: Soogeun Yoo, Honggeol Choi, Hoyoung Lee
  • LIGHTING DEVICE
    Publication number: 20180279433
    Abstract: Disclosed is a light emitting device having a configuration that, when a magnitude of an input voltage is greater than a minimum light emitting voltage, all light emitting devices are turned on regardless of the magnitude of the voltage. As the magnitude of the voltage is smaller, the light emitting devices are connected in parallel. As the magnitude of the voltage is greater, the light emitting devices are serially connected.
    Type: Application
    Filed: June 4, 2018
    Publication date: September 27, 2018
    Applicant: LUMENS CO., LTD.
    Inventors: Soogeun YOO, Honggeol CHOI, Hoyoung LEE
  • Lighting device
    Patent number: 10015852
    Abstract: Disclosed is a light emitting device having a configuration that, when a magnitude of an input voltage is greater than a minimum light emitting voltage, all light emitting devices are turned on regardless of the magnitude of the voltage. As the magnitude of the voltage is smaller, the light emitting devices are connected in parallel. As the magnitude of the voltage is greater, the light emitting devices are serially connected.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: July 3, 2018
    Assignee: LUMENS CO., LTD.
    Inventors: Soogeun Yoo, Honggeol Choi, Hoyoung Lee
  • LIGHTING DEVICE
    Publication number: 20180153011
    Abstract: Disclosed is a light emitting device having a configuration that, when a magnitude of an input voltage is greater than a minimum light emitting voltage, all light emitting devices are turned on regardless of the magnitude of the voltage. As the magnitude of the voltage is smaller, the light emitting devices are connected in parallel. As the magnitude of the voltage is greater, the light emitting devices are serially connected.
    Type: Application
    Filed: January 29, 2018
    Publication date: May 31, 2018
    Applicant: LUMENS CO., LTD.
    Inventors: Soogeun YOO, Honggeol CHOI, Hoyoung LEE
  • Lighting device
    Patent number: 9924572
    Abstract: Disclosed is a light emitting device having a configuration that, when a magnitude of an input voltage is greater than a minimum light emitting voltage, all light emitting devices are turned on regardless of the magnitude of the voltage. As the magnitude of the voltage is smaller, the light emitting devices are connected in parallel. As the magnitude of the voltage is greater, the light emitting devices are serially connected.
    Type: Grant
    Filed: August 26, 2017
    Date of Patent: March 20, 2018
    Assignee: LUMENS CO., LTD.
    Inventors: Soogeun Yoo, Honggeol Choi, Hoyoung Lee
  • LIGHTING DEVICE
    Publication number: 20170359873
    Abstract: Disclosed is a light emitting device having a configuration that, when a magnitude of an input voltage is greater than a minimum light emitting voltage, all light emitting devices are turned on regardless of the magnitude of the voltage. As the magnitude of the voltage is smaller, the light emitting devices are connected in parallel. As the magnitude of the voltage is greater, the light emitting devices are serially connected.
    Type: Application
    Filed: August 26, 2017
    Publication date: December 14, 2017
    Applicant: LUMENS CO., LTD.
    Inventors: Soogeun YOO, Honggeol CHOI, Hoyoung LEE
  • Lighting device
    Patent number: 9781791
    Abstract: Disclosed is a light emitting device having a configuration that, when a magnitude of an input voltage is greater than a minimum light emitting voltage, all light emitting devices are turned on regardless of the magnitude of the voltage. As the magnitude of the voltage is smaller, the light emitting devices are connected in parallel. As the magnitude of the voltage is greater, the light emitting devices are serially connected.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: October 3, 2017
    Assignee: LUMENS CO., LTD.
    Inventors: Soogeun Yoo, Honggeol Choi, Hoyoung Lee
  • LIGHTING DEVICE
    Publication number: 20160309560
    Abstract: Disclosed is a light emitting device having a configuration that, when a magnitude of an input voltage is greater than a minimum light emitting voltage, all light emitting devices are turned on regardless of the magnitude of the voltage. As the magnitude of the voltage is smaller, the light emitting devices are connected in parallel. As the magnitude of the voltage is greater, the light emitting devices are serially connected.
    Type: Application
    Filed: June 27, 2016
    Publication date: October 20, 2016
    Applicant: LUMENS CO., LTD.
    Inventors: Soogeun YOO, Honggeol CHOI, Hoyoung LEE
  • Lighting device
    Patent number: 9414453
    Abstract: Disclosed is a light emitting device having a configuration that, when a magnitude of an input voltage is greater than a minimum light emitting voltage, all light emitting devices are turned on regardless of the magnitude of the voltage. As the magnitude of the voltage is smaller, the light emitting devices are connected in parallel. As the magnitude of the voltage is greater, the light emitting devices are serially connected.
    Type: Grant
    Filed: June 13, 2014
    Date of Patent: August 9, 2016
    Assignee: LUMENS CO., LTD.
    Inventors: Soogeun Yoo, Honggeol Choi, Hoyoung Lee
  • LIGHTING DEVICE
    Publication number: 20150341997
    Abstract: Disclosed is a light emitting device having a configuration that, when a magnitude of an input voltage is greater than a minimum light emitting voltage, all light emitting devices are turned on regardless of the magnitude of the voltage. As the magnitude of the voltage is smaller, the light emitting devices are connected in parallel. As the magnitude of the voltage is greater, the light emitting devices are serially connected.
    Type: Application
    Filed: June 13, 2014
    Publication date: November 26, 2015
    Inventors: Soogeun YOO, Honggeol CHOI, Hoyoung LEE