Patents by Inventor Ka-Ram Kim

Ka-Ram Kim 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).

  • Publication number: 20210302310
    Abstract: A method of transforming Monte Carlo (MC) simulations for diffuse reflectance spectroscopy (DRS) may include obtaining, by a DRS device, MC simulated DRS measurements using a pre-defined number of photons; pre-processing, by the DRS device, the MC simulated DRS measurements to obtain normalized DRS measurements; correcting, by the DRS device, non-monotonicity of the normalized DRS measurements to obtain monotonic DRS measurements; converting, by the DRS device, the monotonic DRS measurements to a logarithmic domain to obtain logarithmic DRS measurements; performing, by the DRS device, curve fitting on the logarithmic DRS measurements in the logarithmic domain to obtain curve-fitted logarithmic DRS measurements; and transforming, by the DRS device, the curve-fitted logarithmic DRS measurements to a non-logarithmic domain to obtain transformed MC simulated DRS measurements.
    Type: Application
    Filed: February 26, 2021
    Publication date: September 30, 2021
    Inventors: Sreejith KALLUMMIL, Sujit JOS, Ibrahim A., Ka Ram CHOI, Sang Kyu KIM
  • Publication number: 20210262935
    Abstract: An optical bio-sensing device includes a transparent substrate covering a top of a space accommodating therein a sample containing a target bio-material; a signal converter fixed to the transparent substrate, and including the upconversion nanoparticles for receiving incident light and emitting converted light of a wavelength shorter than a wavelength of the incident light; a signal reflector including retroreflection particles bindable to the signal converter via the target bio-material, wherein the retroreflection particles retroreflect the converted light; a light source for irradiating the incident light to the signal converter; and a light receiver for receiving light retroreflected from the signal reflector.
    Type: Application
    Filed: February 11, 2021
    Publication date: August 26, 2021
    Inventors: Hyun C YOON, Ka Ram KIM, Hyeong Jin CHUN
  • Publication number: 20210002546
    Abstract: Disclosed is a method of manufacturing lanthanide fluorescent silica nanoparticles, including a complex synthesis step of synthesizing a silane-lanthanide chelate complex, an emulsion formation step of forming a water-in-oil microemulsion by dispersing micelles, the water-phase core of which is introduced with the silane-lanthanide chelate complex, in an oil-phase solvent, a silica introduction step of introducing a silica precursor into the microemulsion, and a nanoparticle synthesis step of synthesizing fluorescent silica nanoparticles by crosslinking the silica precursor and the silane-lanthanide chelate complex in the micelles. The lanthanide fluorescent silica nanoparticles thus manufactured can be utilized in fluorescence analysis of inorganic materials or bio-derived materials.
    Type: Application
    Filed: February 14, 2017
    Publication date: January 7, 2021
    Inventors: Hyun C. YOON, Ka Ram KIM, Yong Duk HAN, Yoo Min PARK, Hyeong Jin CHUN
  • Publication number: 20160067522
    Abstract: The present disclosure relates to a method for skin improvement using low-dose radiation, and the low-dose radiation can exhibit excellent effects of improving skin wrinkles, improving skin barriers, improving skin thickness, improving skin elasticity, and improving skin moisture through the mechanisms of promoting the growth of normal human dermal fibroblasts, increasing the collagen synthesis within the normal human dermal fibroblast, or reducing the metalloproteinase synthesis within the normal human dermal fibroblasts, thus being effectively used for skin improvement. Additionally, the low-dose radiation of the present disclosure can exhibit excellent hair growth-promoting effect through the mechanisms of promoting the growth of human dermal papilla cells or activating hair follicle cells, thus being useful for the improvement of promoting hair growth.
    Type: Application
    Filed: August 28, 2015
    Publication date: March 10, 2016
    Inventors: SUNG-KWAN AN, Seung-Hee Bae, Hwa-Jun Cha, Ka-Ram Kim, Sang-Hun Shin, Hyun-Hee Jang