Patents by Inventor Bong Yull CHOI

Bong Yull CHOI 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).

  • Light emitting device
    Patent number: 9837585
    Abstract: Disclosed is a light-emitting device which comprises: a light-emitting element for emitting a first light in a blue wavelength band; a first wavelength converter for converting the first light into a second light; a second wavelength converter for converting the first light into a third light; and a third wavelength converter for converting the first light into a fourth light, wherein the first to fourth lights have central wavelengths which satisfy the following relationship: [Expression 1] ?1<?2<?3<?4 (wherein ?1 is the central wavelength of the first light; ?2 is the central wavelength of the second light; ?3 is the central wavelength of the third light; and ?4 is the central wavelength of the fourth light.).
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: December 5, 2017
    Assignee: LUMIMICRO CORP. LTD.
    Inventors: Tae Hun Kim, Sang Il Lee, Sang Jae Lee, Bong Yull Choi, Byung Joo Ji, Je Eun Hwang
  • LIGHT EMITTING DEVICE
    Publication number: 20160293808
    Abstract: Disclosed is a light-emitting device which comprises: a light-emitting element for emitting a first light in a blue wavelength band; a first wavelength converter for converting the first light into a second light; a second wavelength converter for converting the first light into a third light; and a third wavelength converter for converting the first light into a fourth light, wherein the first to fourth lights have central wavelengths which satisfy the following relationship: [Expression 1] ?1<?2<?3<?4 (wherein ?1 is the central wavelength of the first light; ?2 is the central wavelength of the second light; ?3 is the central wavelength of the third light; and ?4 is the central wavelength of the fourth light.
    Type: Application
    Filed: April 25, 2014
    Publication date: October 6, 2016
    Applicant: LUMIMICRO CORP. LTD.
    Inventors: Tae Hun KIM, Sang II LEE, Sang Jae LEE, Bong Yull CHOI, Byung Joo JI, Je Eun HWANG