Patents by Inventor In Ja Lee

In Ja Lee 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: 10954435
    Abstract: The present invention relates to a luminescent rare earth compound and dichroism fluorescent composition thereof, and more particularly, the luminescent rare earth compound is a luminescent rare earth compound excited by shortwave UV (Ultra-Violet). The luminescent rare earth compound and/or products applied with the luminescent rare earth compound according to the present invention can emit strong red and green colors by being excited at 240-330 nm range of wavelengths, while not being excited at 360-380 nm range of wavelengths, and showing no colors under visible light. Furthermore, the compound may be variably utilized to printed materials and plastic mold products because of possessing high heat resistance, high light resistance and high dispersibility of medium light.
    Type: Grant
    Filed: October 13, 2014
    Date of Patent: March 23, 2021
    Assignee: NANO CMS CO., LTD.
    Inventors: In Ja Lee, Je Young Park, Shi Surk Kim
  • Patent number: 10050214
    Abstract: The present invention relates to a near-ultraviolet stimulated light-emitting compound, and more specifically relates to a fluorescent quinazolinone compound which is stimulated in the near ultraviolet region. The fluorescent quinazolinone compound according to the present invention is colorless in daylight but exhibits a high fluorescent intensity when irradiated with light in the near ultraviolet region. Also, the fluorescent quinazolinone compound can be easily used with printed and plastic molded products since the compound not only has a high degree of light fastness and thermal stability but also high dispersibility.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: August 14, 2018
    Assignees: NANO CMS CO., LTD., KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
    Inventors: Je Young Park, In Ja Lee, Shi Surk Kim, Kun Jun, Seung Rim Shin, Kyoung Lyong An
  • Publication number: 20180215999
    Abstract: The present invention relates to a luminescent rare earth compound and dichroism fluorescent composition thereof, and more particularly, the luminescent rare earth compound is a luminescent rare earth compound excited by shortwave UV (Ultra-Violet). The luminescent rare earth compound and/or products applied with the luminescent rare earth compound according to the present invention can emit strong red and green colors by being excited at 240-330 nm range of wavelengths, while not being excited at 360-380 nm range of wavelengths, and showing no colors under visible light. Furthermore, the compound may be variably utilized to printed materials and plastic mold products because of possessing high heat resistance, high light resistance and high dispersibility of medium light.
    Type: Application
    Filed: October 13, 2014
    Publication date: August 2, 2018
    Applicant: NANO CMS CO., LTD.
    Inventors: In Ja LEE, Je Young PARK, Shi Surk KIM
  • Publication number: 20170012218
    Abstract: The present invention relates to a near-ultraviolet stimulated light-emitting compound, and more specifically relates to a fluorescent quinazolinone compound which is stimulated in the near ultraviolet region. The fluorescent quinazolinone compound according to the present invention is colourless in daylight but exhibits a high fluorescent intensity when irradiated with light in the near ultraviolet region. Also, the fluorescent quinazolinone compound can be easily used with printed and plastic moulded products since the compound not only has a high degree of light fastness and thermal stability but also high dispersibility.
    Type: Application
    Filed: January 15, 2015
    Publication date: January 12, 2017
    Applicants: NANO CMS CO., LTD., KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
    Inventors: Je Young PARK, In Ja LEE, Shi Surk KIM, Kun JUN, Seung Rim SHIN, Kyoung Lyong AN
  • Patent number: 9382384
    Abstract: Disclosed herein are a ?-polyoxo crosslinked phthalocyanine compound, a preparing method thereof, and a near infrared ray absorbing and reflecting composition using the same, and more particularly, a ?-polyoxo crosslinked phthalocyanine compound having high absorption at a wavelength of 800 to 950 nm and high reflectance at a wavelength of 1200 nm or more, a preparing method of a ?-polyoxy crosslinked phthalocyanine compound simultaneously having near infrared ray absorption and reflection properties as described above, and a near infrared ray absorbing and reflecting composition using the ?-polyoxo crosslinked phthalocyanine compound. According to the exemplary embodiment of the present invention, there is provided a ?-polyoxo crosslinked molybdenum phthalocyanine compound capable of absorbing and reflecting near infrared ray at the same time.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: July 5, 2016
    Assignee: Nano CMS Co., Ltd.
    Inventors: Shi Surk Kim, In Ja Lee, Je Young Park, Woo Sung Lim
  • Publication number: 20150183938
    Abstract: Disclosed herein are a ?-polyoxo crosslinked phthalocyanine compound, a preparing method thereof; and a near infrared ray absorbing and reflecting composition using the same, and more particularly, a ?-polyoxo crosslinked phthalocyanine compound having high absorption at a wavelength of 800 to 950 nm and high reflectance at a wavelength of 1200 nm or more, a preparing method of a ?-polyoxy crosslinked phthalocyanine compound simultaneously having near infrared ray absorption and reflection properties as described above, and a near infrared ray absorbing and reflecting composition using the ?-polyoxo crosslinked phthalocyanine compound. According to the exemplary embodiment of the present invention, there is provided a ?-polyoxo crosslinked molybdenum phthalocyanine compound capable of absorbing and reflecting near infrared ray at the same time.
    Type: Application
    Filed: January 28, 2014
    Publication date: July 2, 2015
    Applicant: NANO CMS Co., Ltd.
    Inventors: Shi Surk Kim, In Ja Lee, Je Young Park, Woo Sung Lim