Patents by Inventor Hyo Jae YOON

Hyo Jae YOON 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: 20250143061
    Abstract: Disclosed is a molecular diode using the assignment of electrical properties to inactive organic molecules when a self-assembled monolayer (SAM) thin film including an electrically inactive organic molecule is formed without synthesizing a separate organic molecule having electrical activity. The disadvantage of the instability of a conventional SAM can be overcome, a function can be extended, and electrical properties, such as a rectification characteristic in a non-functional molecule, can be induced even without the design and synthesis of organic molecules for introducing a functional molecule. Accordingly, the embodiments of the present disclosure can be usefully used in various technical fields in which an SAM is used, in particular, wide fields such as electronics, an organic display (OLED), solar cells, sensors, non-uniform catalysts, frictional electricity, cell growth surfaces, and a heat transfer control film.
    Type: Application
    Filed: September 13, 2024
    Publication date: May 1, 2025
    Applicant: Korea University Research and Business Foundation
    Inventors: Hyo Jae YOON, Gyudon KONG
  • Publication number: 20250093772
    Abstract: The present invention relates to PHOTORESIST COMPOSITIONS AND METHODS OF FORMING PATTERNS USING A PHOTORESIST COMPOSITION. Disclosed is a photoresist composition including an organometallic compound including a ring including a metal, a first heteroatom coordinated to the metal, and a second heteroatom covalently bonded to the metal, and an aromatic ring substituted or fused to the ring; and a solvent.
    Type: Application
    Filed: July 19, 2024
    Publication date: March 20, 2025
    Applicant: Korea University Research and Business Foundation
    Inventors: Chawon Koh, Hyo Jae Yoon, Tsunehiro Nishi, Gayeong Lim
  • Patent number: 12103909
    Abstract: The present invention relates to polycyclic aromatic hydrocarbon-based compounds, for a molecular electronic device, enabling molecular rectification, and molecular electronic devices comprising a molecular layer formed by means of the compounds self-assembled on an electrode. The compounds according to the present invention can realize rectifying properties by being introduced between electrodes and thus enable a high rectification ratio by means of low voltage driving, and thus can be substituted for a silicon-based diode device and, more particularly, can be utilized for a wearable device, Bluetooth, an IoT enabling device and the like which require low voltage driving.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: October 1, 2024
    Assignee: Korea University Research and Business Foundation
    Inventors: Hyo Jae Yoon, Soo Jin Cho
  • Publication number: 20240317932
    Abstract: The present invention relates to a mechanophore structure of a mechanical force selectively responsive aziridine derivative and a polymer comprising same, wherein, when an aziridine derivative compound is used as a mechanophore to react to mechanical force and thermal stimulus, respectively, a covalent bond of aziridine is selectively broken by mechanical force, and thus, it has been revealed that mechanical force-only selectively responsive aziridine exists. According to the present invention, a polymer containing a mechanical force-only selectively responsive mechanophore can be manufactured, and thus can be widely used in various industrial fields such as new material fields.
    Type: Application
    Filed: May 26, 2022
    Publication date: September 26, 2024
    Applicant: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Hyo Jae YOON, Sangmin JUNG
  • Publication number: 20240237536
    Abstract: The present invention relates to a nanoscale thermoelectric assembly assembled through non-covalent contact between graphene and molecules, and a thermoelectric device comprising same. The present invention ascertains an increase in the Seebeck value due to n-type doping induced by an electron interaction in non-covalent contact of molecules, and confirms the length dependence of the Seebeck value in a graphene-alkylamine SAM system, thereby enabling the development and industrial application of efficient organic thermoelectric devices at a molecular scale.
    Type: Application
    Filed: June 21, 2022
    Publication date: July 11, 2024
    Applicant: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Hyo Jae YOON, Sohyun PARK
  • Patent number: 11814452
    Abstract: Disclosed are new polymeric materials that respond to a mechanical force. The novel polymeric compounds contain an isomer of aziridine, a three-membered N-heterocyclic compound. Also disclosed are methods for preparing the polymeric compounds. Mechanical force-induced cycloaddition of aziridines as mechanophores yields stereospecific products without covalent bond cleavage of aziridines. That is, a mechanical force makes the mechanochemical products stereospecific. The stereospecific products prepared from the isomeric mechanophores by a mechanical force can be widely used in various industrial fields, including new materials.
    Type: Grant
    Filed: May 7, 2021
    Date of Patent: November 14, 2023
    Assignee: Korea University Research and Business Foundation
    Inventors: Hyo Jae Yoon, Sangmin Jung
  • Publication number: 20230292582
    Abstract: The present invention relates to a liquid metal based fabrication method, and the method for fabricating an electrode based on a liquid metal, according to the present invention, comprises the steps of: preparing a first substrate having a self-assembled monolayer (SAM) on one surface thereof; and printing a liquid metal in a predetermined pattern to be in contact with the surface of the self-assembled monolayer by using a printing device including a needle from which the liquid metal is discharged, and a controller for controlling the movement of the needle, thereby forming a liquid metal electrode.
    Type: Application
    Filed: July 27, 2021
    Publication date: September 14, 2023
    Applicant: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Hyo Jae YOON, Seo Eun BYEON
  • Publication number: 20230271217
    Abstract: Disclosed are an interstitially mixed self-assembled monolayer (ImSAM) that can be manufactured very easily by utilizing a novel method of manufacturing supramolecular alloys called “repeated surface exchange of molecules (ReSEM)”, maintain chemical functional groups exposed to the surface of conventional thin films and selectively improve stability without interfering with performance, and a method of manufacturing the same. The interstitially mixed self-assembled monolayers (imSAMs) remarkably enhance electrical stability of molecular-scale electronic devices without deterioration in functions and reliability, withstand a high voltage, and exhibit better stability than a single SAM while maintaining the performance of the prior art, thus being useful for a variety of technical fields using SAMs, especially electronics, organic light-emitting displays (OLEDs), solar cells, sensors, heterogeneous catalysts, frictional electricity, cell growth surfaces, and heat transfer control films.
    Type: Application
    Filed: February 24, 2023
    Publication date: August 31, 2023
    Applicant: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Hyo Jae YOON, Gyu don KONG, Hyun sun SONG
  • Patent number: 11482655
    Abstract: The present invention relates to a thermoelectric measurement system based on a liquid eutectic gallium-indium electrode, whereby thermoelectric performance can be measured with excellent efficiency and high reproducibility even without construction of expensive equipment, various organic molecules as well as large-area molecular layers can be measured, and various thermoelectric materials, such as inorganic materials and inorganic-organic composite materials, can be measured. In addition, non-toxic liquid metal EGaIn is used as an upper electrode, so the damage to even a substance of measurement in the form of a nano-level thin film can be minimized, and the measurement of thermoelectric performance can be performed on even nano- to micro-level organic thermoelectric elements. Therefore, the thermoelectric measurement system is widely utilized across the thermoelectric element industry.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: October 25, 2022
    Assignee: Korea University Research and Business Foundation
    Inventors: Hyo Jae Yoon, Sohyun Park
  • Publication number: 20210376216
    Abstract: The present invention relates to a thermoelectric measurement system based on a liquid eutectic gallium-indium electrode, whereby thermoelectric performance can be measured with excellent efficiency and high reproducibility even without construction of expensive equipment, various organic molecules as well as large-area molecular layers can be measured, and various thermoelectric materials, such as inorganic materials and inorganic-organic composite materials, can be measured. In addition, non-toxic liquid metal EGaIn is used as an upper electrode, so the damage to even a substance of measurement in the form of a nano-level thin film can be minimized, and the measurement of thermoelectric performance can be performed on even nano- to micro-level organic thermoelectric elements. Therefore, the thermoelectric measurement system is widely utilized across the thermoelectric element industry.
    Type: Application
    Filed: August 21, 2019
    Publication date: December 2, 2021
    Applicant: Korea University Research and Business Foundation
    Inventors: Hyo Jae YOON, Sohyun PARK
  • Publication number: 20210371557
    Abstract: Disclosed are new polymeric materials that respond to a mechanical force. The novel polymeric compounds contain an isomer of aziridine, a three-membered N-heterocyclic compound. Also disclosed are methods for preparing the polymeric compounds. Mechanical force-induced cycloaddition of aziridines as mechanophores yields stereospecific products without covalent bond cleavage of aziridines. That is, a mechanical force makes the mechanochemical products stereospecific. The stereospecific products prepared from the isomeric mechanophores by a mechanical force can be widely used in various industrial fields, including new materials.
    Type: Application
    Filed: May 7, 2021
    Publication date: December 2, 2021
    Applicant: Korea University Research and Business Foundation
    Inventors: Hyo Jae YOON, Sangmin JUNG
  • Publication number: 20210367154
    Abstract: The present invention relates to polycyclic aromatic hydrocarbon-based compounds, for a molecular electronic device, enabling molecular rectification, and molecular electronic devices comprising a molecular layer formed by means of the compounds self-assembled on an electrode. The compounds according to the present invention can realize rectifying properties by being introduced between electrodes and thus enable a high rectification ratio by means of low voltage driving, and thus can be substituted for a silicon-based diode device and, more particularly, can be utilized for a wearable device, Bluetooth, an IoT enabling device and the like which require low voltage driving.
    Type: Application
    Filed: April 25, 2019
    Publication date: November 25, 2021
    Applicant: Korea University Research and Business Foundation
    Inventors: Hyo Jae YOON, Soo Jin CHO