Patents by Inventor Mi Rim HAM

Mi Rim HAM 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).

  • HYDROGEL COATING COMPOSITION FOR CHEMICAL SENSOR AND CHEMICAL SENSOR FABRICATED USING SAME
    Publication number: 20230323132
    Abstract: A hydrogel coating composition for a chemical sensor includes a photo-crosslinkable monomer containing a cationic functional group; a pH indicator dye; a viscosity modifier; and a solvent. The hydrogel coating composition for a chemical sensor can be used for identifying freshness of foods by detecting volatile basic nitrogen or toxic chemicals generated when food spoils, such as ammonia, hydrogen sulfide, etc., and can be coated in desired patterns on a substrate. A chemical sensor fabricated from the hydrogel coating composition is designed to fix a pH indicator dye through an ionic bond to prevent the detachment of the indicator dye. Therefore, the chemical sensor exhibits excellent color reproducibility and has stability as a sensor.
    Type: Application
    Filed: June 21, 2021
    Publication date: October 12, 2023
    Applicant: Kookmin University Industry Academy Cooperation Foundation
    Inventors: Hyunjung LEE, Mi Rim HAM, Hyunji KIM, Soohyun KIM
  • Hydrogel bead, chemical sensor including the same, container and electronic article including the chemical sensor
    Patent number: 11237114
    Abstract: Disclosed herein are a hydrogel bead, a chemical sensor including the same, and an electronic product including the chemical sensor. The hydrogel bead includes at least one type of polysaccharide physically crosslinked with a cation or an anion, and a pH indicator dye.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: February 1, 2022
    Assignee: KOOKMIN UNIVERSITY INDUSTRY ACADEMY COOPERATION FOUNDATION
    Inventors: Hyun Jung Lee, Soo Hyun Kim, Mi Rim Ham
  • HYDROGEL BEAD, CHEMICAL SENSOR INCLUDING THE SAME, CONTAINER AND ELECTRONIC ARTICLE INCLUDING THE CHEMICAL SENSOR
    Publication number: 20200319114
    Abstract: Disclosed herein are a hydrogel bead, a chemical sensor including the same, and an electronic product including the chemical sensor. The hydrogel bead includes at least one type of polysaccharide physically crosslinked with a cation or an anion, and a pH indicator dye.
    Type: Application
    Filed: April 2, 2020
    Publication date: October 8, 2020
    Applicant: KOOKMIN UNIVERSITY INDUSTRY ACADEMY COOPERATION FOUNDATION
    Inventors: Hyun Jung LEE, Soo Hyun KIM, Mi Rim HAM, Seo Yeon KIM