Patents by Inventor Sung Ju Choi

Sung Ju 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).

  • Patent number: 11970732
    Abstract: The present invention relates to a method for determining the DNA quality of a biological sample and, more specifically, to a method for determining the DNA quality of a biological sample by performing a quantitative polymerase chain reaction (PCR) using primers capable of amplifying a target gene, a method for preparing the primers used in the method, and a method for standardizing the amount of detected target gene mutation by using the determined DNA quality. The method of the present invention enables objective evaluation of the DNA quality of a biological sample used in gene analysis and the presentation of objective results on the expression ratio of a gene mutation, thereby providing reliable information in the fields of clinical research and companion diagnosis.
    Type: Grant
    Filed: April 4, 2018
    Date of Patent: April 30, 2024
    Assignees: GENCURIX INC., LOGONE BIO CONVERGENCE RESEARCH FOUNDATION
    Inventors: Young Kee Shin, Jin Ju Kim, Sung Su Kim, Hyun Jeung Choi, Young Ho Moon, Myung Sun Kim, Jee Eun Kim
  • Publication number: 20240131232
    Abstract: Disclosed is an anti-adhesion agent composition which uses a high molecular weight compound having biocompatibility and an oil derived from animals, plants, and minerals so as to improve low viscosity and low strength, which are problems of existing anti-adhesion agents, and prevent adhesion between living tissues. The anti-adhesion composition according to the present disclosure performs a physical barrier function through simple mixing of a polymer material, serving as a physical barrier in its anti-adhesion effect, and a solvent, and remains in the body for a certain period of time, then decomposes, absorbs, and is excreted. The anti-adhesion composition does not interfere with the healing of the wound after surgery, and exhibits an excellent effect of convenient application to the surgical site.
    Type: Application
    Filed: June 13, 2022
    Publication date: April 25, 2024
    Inventors: Sung Joo Hwang, Dong Min Kim, Ji Eun Kim, Yeon Ju Choi, Yong Kyung Hwang
  • Publication number: 20240128502
    Abstract: An embodiment solid electrolyte includes a first compound and a second compound. The first compound is represented by a first chemical formula Li7-aPS6-a(X11-bX2b)a, wherein X1 and X2 are the same or different and each represents F, Cl, Br, or I, and wherein 0<a?2 and 0<b<1, and the second compound is represented by a second chemical formula Li7-cP1-2dMdS6-c-3d(X11-eX2e)c, wherein X1 and X2 are the same or different and each represents F, Cl, Br, or I, wherein M represents Ge, Si, Sn, or any combination thereof, and wherein 0<c?2, 0<d<0.5, and 0<e<1.
    Type: Application
    Filed: August 14, 2023
    Publication date: April 18, 2024
    Inventors: Sa Heum Kim, Yong Jun Jang, Yong Gu Kim, Sung Man Cho, Sun Ho Choi, Seong Hyeon Choi, Kyu Sung Park, Young Gyoon Ryu, Suk Gi Hong, Pil Sang Yun, Myeong Ju Ha, Hyun Beom Kim, Hwi Chul Yang
  • Publication number: 20240120343
    Abstract: A thin film transistor array substrate including a substrate including an active area and a non-active area, and a first thin film transistor disposed on the substrate while including a first oxide semiconductor pattern, a first gate electrode overlapping with the first oxide semiconductor pattern, a first gate insulating layer interposed between the first oxide semiconductor pattern and the first gate electrode, a first source electrode and a first drain electrode disposed on and connected to the first oxide semiconductor pattern, and a first light shielding pattern disposed under the first oxide semiconductor pattern and electrically connected to one of the first source electrode and the first drain electrodes. The first gate electrode includes a first portion maintaining a first parasitic capacitance and a second portion maintaining a second parasitic capacitance smaller than the first parasitic capacitance, together with the first oxide semiconductor pattern.
    Type: Application
    Filed: August 8, 2023
    Publication date: April 11, 2024
    Applicant: LG Display Co., Ltd.
    Inventors: Hong Rak CHOI, Do Hyung LEE, Young Hyun KO, Chan Yong JEONG, Sung Ju CHOI
  • Publication number: 20240096888
    Abstract: A super-steep switching device and an inverter device using the same are disclosed. The super-steep switching device includes a semiconductor channel disposed on a substrate and made of a semiconductor material having impact ionization characteristic; a source electrode and a drain electrode in contact with the semiconductor channel, wherein the source electrode and the drain electrode are disposed on the substrate and are spaced apart from each other; and a gate electrode disposed on the semiconductor channel so as to overlap only a portion of the semiconductor channel, wherein a top surface of the semiconductor channel includes a first area overlapping the gate electrode, and a second area non-overlapping the gate electrode, wherein a ratio of a length of the first area and a length of the second area is in a range of 1:0.1 to 0.4.
    Type: Application
    Filed: September 8, 2022
    Publication date: March 21, 2024
    Applicant: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Hae Ju CHOI, Tae Ho KANG, Chan Woo KANG, Hyeon Je SON, Jin Hong PARK, Sung Joo LEE, Sung Pyo BAEK
  • Patent number: 11935980
    Abstract: A filtering panel includes a molding layer part; a pattern layer part having an incident surface through which light emitted from a light source and viewing light transmitted to an observer enter, and an accommodation surface which is the reverse surface of the incident surface, wherein the molding layer part is stacked on the incident surface so as to be adjacent thereto, and the pattern layer part adjusts the optical paths of the emitted light and the viewing light; and a filtering layer part formed on a lower incident surface of the pattern layer part having the incident surface of the viewing light that enters from a lower region below a horizontal reference line, wherein the reflectivity of the visible light in the viewing light incident on the lower region is made greater than that of an upper region above the reference line by means of mirror reflection.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: March 19, 2024
    Assignees: POSCO CO., LTD, RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY
    Inventors: Sung-Ju Tark, Kun-Hoon Baek, Jun-Hong Kim, Youn-Joung Choi, Ji-Sang Park
  • Publication number: 20240090278
    Abstract: The disclosure relates to a display device including an oxide semiconductor pattern. The disclosure provides a driving thin film transistor and a switching thin film transistor using an oxide semiconductor pattern as an active layer. Each of the driving thin film transistor and the switching thin film transistor includes a light shielding pattern. The light shielding pattern includes a semiconductor material layer doped with P-type impurity ions. By virtue of the light shielding pattern including the semiconductor material layer, each of the driving thin film transistor and the switching thin film transistor exhibits an increase in threshold voltage and, as such, freedom of circuit design is secured.
    Type: Application
    Filed: August 28, 2023
    Publication date: March 14, 2024
    Inventors: Sung Ju Choi, Jae Yoon Park, Jung Seok Seo, Seo Yeon Im, Jin Won Jung
  • Publication number: 20240074235
    Abstract: A display apparatus is provided. The display apparatus may include a light-emitting device and a pixel driving circuit electrically connected to the light-emitting device. The pixel driving circuit may supply a driving current corresponding to a data signal to the light-emitting device according to a gate signal. For example, the pixel driving circuit may include at least one thin film transistor. The thin film transistor may include an active pattern comprising an oxide semiconductor. A source region of the active pattern overlaps a source semiconductor pattern, and a drain region of the active pattern overlaps a drain semiconductor pattern. The source semiconductor pattern and the drain semiconductor pattern may include n-type impurities. A channel region of the active pattern may be outside the source semiconductor pattern and the drain semiconductor pattern. Thus, in the display apparatus, reliability of the pixel driving circuit may be improved.
    Type: Application
    Filed: June 30, 2023
    Publication date: February 29, 2024
    Inventors: Sung Ju Choi, Jae Yoon Park, Jung Seok Seo, Seo Yeon Im, Jin Won Jung
  • Publication number: 20240072064
    Abstract: The disclosure provides an array substrate of a thin film transistor including an oxide semiconductor pattern, and a display device using the same. The thin film transistor array substrate includes a substrate including an active area and a non-active area disposed around the active area, and a first thin film transistor disposed on the substrate. The first thin film transistor includes a first oxide semiconductor pattern disposed on the substrate, a first gate electrode disposed under the first oxide semiconductor pattern while overlapping with the first oxide semiconductor pattern, a first source electrode and a first drain electrode disposed on the first oxide semiconductor pattern and connected to the first oxide semiconductor pattern, and a first light shielding pattern disposed over the first oxide semiconductor pattern and electrically connected to one of the first source electrode and the first drain electrode while overlapping with the first oxide semiconductor pattern.
    Type: Application
    Filed: August 4, 2023
    Publication date: February 29, 2024
    Applicant: LG Display Co., Ltd.
    Inventors: Sung Ju CHOI, Jung Seok SEO, Jae Yoon PARK, Seo Yeon IM, Jin Won JUNG
  • Publication number: 20240038902
    Abstract: The disclosure provides a driving thin film transistor and a switching thin film transistor each using an oxide semiconductor pattern as an active layer thereof. The driving thin film transistor and the switching thin film transistor include light shielding patterns, respectively. Each light shielding pattern includes a semiconductor material layer doped with P-type impurity ions. By virtue of the light shielding patterns including the semiconductor material layer, the driving thin film transistor and the switching thin film transistor achieve an increase in threshold voltage, thereby securing freedom of design.
    Type: Application
    Filed: July 31, 2023
    Publication date: February 1, 2024
    Inventors: Sung Ju CHOI, Young Hyun KO, Chan Yong JEONG, Jung Seok SEO, Jae Yoon PARK, Seo Yeon IM, Jin Won JUNG
  • Publication number: 20240008308
    Abstract: An organic light emitting display device including a substrate, a light emitting element on the substrate, and a driving thin film transistor supplying drive current to the light emitting element is disclosed. The driving thin film transistor includes a buffer layer on the substrate, a first polycrystalline silicon semiconductor layer on the buffer layer, a first oxide semiconductor layer contacting the first polycrystalline silicon semiconductor layer while being disposed thereon and including a first channel region, a first source region, and a first drain region, a gate insulating layer covering the first oxide semiconductor layer and the first polycrystalline silicon semiconductor layer, a first gate electrode disposed on the gate insulating layer, a first source electrode connected to the first source region, a first drain electrode connected to the first drain region, and a first light shielding layer disposed under the first oxide semiconductor layer while overlapping therewith.
    Type: Application
    Filed: May 11, 2023
    Publication date: January 4, 2024
    Inventors: Sung Ju Choi, Jung Seok Seo, Jae Yoon Park, Seo Yeon Im, Jin Won Jung
  • Patent number: 11712414
    Abstract: Disclosed is an oral pharmaceutical composition for preventing or treating dry eye syndrome, which comprises rebamipide or a prodrug thereof, or a pharmaceutically acceptable salt thereof, as an active ingredient. The compounds can treat dry eye syndrome via oral route, and can be thus employed safely and conveniently compared to conventional eye drops.
    Type: Grant
    Filed: April 17, 2014
    Date of Patent: August 1, 2023
    Assignees: SAMJIN PHARMACEUTICAL CO., LTD., ASTECH. CO., LTD.
    Inventors: Eui Hwan Cho, Sung Ju Choi, Sung Woo Lee, Hee Jong Shin, Jong Bae Yoon, Ki Seok Park, Ho Tae Nam
  • Patent number: 11420963
    Abstract: Disclosed are a novel rebamipide prodrug, a method for preparing the same, and use thereof. Also, a pharmaceutical composition comprising the novel rebamipide prodrug as an active ingredient is provided. The rebamipide prodrug is increased 25-fold in absorption rate compared to rebamipide itself, and can be applied to the prophylaxis or therapy of gastric ulcer, acute gastritis, chronic gastritis, xerophthalmia, cancer, osteoarthritis, rheumatoid arthritis, or obesity.
    Type: Grant
    Filed: June 26, 2013
    Date of Patent: August 23, 2022
    Assignees: SAMJIN PHARMACEUTICAL CO., LTD., ASTECH. CO., LTD.
    Inventors: Eui Hwan Cho, Sung Ju Choi, Sung Woo Lee, Hee Jong Shin, Ho Seok Kwon, Jae Woong Lee, Jeong Ho Joo, Hyun Tae Kim, Woo Heon Song, Jong Bae Yoon, Ki Seok Park, Ho Joon Park, Ho Tae Nam
  • Patent number: 10918725
    Abstract: An ophthalmic composition is provided that includes rebamipide and a method for preparing the same. The ophthalmic composition of maintains its transparency for a long time even in a physiologically neutral to weakly basic pH range that does not injure the cornea and conjunctiva of a patient suffering from dry eye and has improved stability so as not to be re-dispersed.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: February 16, 2021
    Assignee: SAMJIN PHARMACEUTICAL CO., LTD.
    Inventors: Eui-Hwan Cho, Sung-Ju Choi, Sung-Woo Lee, Hee-Jong Shin, Min-Hyo Ki, Mee-Hwa Choi, Dong-Ha Lee
  • Publication number: 20190038564
    Abstract: Disclosed is an immediate-release carvedilol formulation, which is configured such that a coating layer including a polymer, wax, fatty acid and/or fatty acid ester is formed on the surface thereof. This formulation has improved madescent, and thus can exhibit high stability, in which the initial appearance of the formulation can be maintained without cracking or breaking even under storage conditions at high relative humidity.
    Type: Application
    Filed: January 24, 2017
    Publication date: February 7, 2019
    Inventors: Eui Hwan Cho, Sung-Ju Choi, Sung-Woo Lee, Hee-Jong Shin, Min-Hyo Ki, Mee-Hwa Choi, Tae-Hoon Oh
  • Publication number: 20180264120
    Abstract: An ophthalmic composition is provided that includes rebamipide and a method for preparing the same. The ophthalmic composition of maintains its transparency for a long time even in a physiologically neutral to weakly basic pH range that does not injure the cornea and conjunctiva of a patient suffering from dry eye and has improved stability so as not to be re-dispersed.
    Type: Application
    Filed: September 30, 2016
    Publication date: September 20, 2018
    Inventors: Eui-Hwan CHO, Sung-Ju CHOI, Sung-Woo LEE, Hee-Jong SHIN, Min-Hyo KI, Mee-Hwa CHOI, Dong-Ha LEE
  • Publication number: 20160081922
    Abstract: Disclosed is an oral pharmaceutical composition for preventing or treating dry eye syndrome, which comprises rebamipide or a prodrug thereof, or a pharmaceutically acceptable salt thereof, as an active ingredient. The compounds can treat dry eye syndrome via oral route, and can be thus employed safely and conveniently compared to conventional eye drops.
    Type: Application
    Filed: April 17, 2014
    Publication date: March 24, 2016
    Inventors: Eui Hwan CHO, Sung Ju CHOI, Sung Woo LEE, Hee Jong SHIN, Jong Bae YOON, Ki Seok PARK, Ho Tae NAM
  • Publication number: 20150141409
    Abstract: Disclosed are a novel rebamipide prodrug, a method for preparing the same, and use thereof. Also, a pharmaceutical composition comprising the novel rebamipide prodrug as an active ingredient is provided. The rebamipide prodrug is increased 25-fold in absorption rate compared to rebamipide itself, and can be applied to the prophylaxis or therapy of gastric ulcer, acute gastritis, chronic gastritis, xerophthalmia, cancer, osteoarthritis, rheumatoid arthritis, or obesity.
    Type: Application
    Filed: June 26, 2013
    Publication date: May 21, 2015
    Inventors: Eui Hwan Cho, Sung Ju Choi, Sung Woo Lee, Hee Jong Shin, Ho Seok Kwon, Jae Woong Lee, Jeong Ho Joo, Hyun Tae Kim, Woo Heon Song, Jong Bae Yoon, Ki Seok Park, Ho Joon Park, Ho Tae Nam