Patents by Inventor Ji-Won Choi

Ji-Won 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: 10685762
    Abstract: The present disclosure relates to a paste for ohmic contact to p-type semiconductor, including a metal oxide and a binder, wherein the metal oxide is a rhenium oxide or a molybdenum oxide.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: June 16, 2020
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Ji-Won Choi, Jin Sang Kim, Chong Yun Kang, Seong Keun Kim, Seung Hyub Baek, Sang Tae Kim, Won Jae Lee, Narendra Singh Parmar, Young-Shin Lee
  • Patent number: 10676425
    Abstract: The present disclosure relates to an ?-aminoamide derivative compound and a pharmaceutical composition containing the same, for treating a neurodegenerative diseases.
    Type: Grant
    Filed: September 24, 2015
    Date of Patent: June 9, 2020
    Assignee: MEGABIOWOOD CO., LTD
    Inventors: Ki Duk Park, ChangJoon Justin Lee, Dong Jin Kim, Ae Nim Pae, Hyun Ah Choo, Sun Joon Min, Yong Koo Kang, Yun Kyung Kim, Hyo Jung Song, Ji Won Choi, Min Ho Nam, Jun Young Heo, Seul Ki Yeon, Bo Ko Jang, Eun Ji Ju, Seon Mi Jo, Jong-Hyun Park
  • Publication number: 20200139561
    Abstract: A cleaning system is provided. The cleaning system includes a robot cleaner and a station. The robot cleaner includes a pad fixing part on which a cleaning pad is detachably mounted, a lifter to lift a part of the robot cleaner at which the pad fixing part is positioned, and a pad detacher to detach the cleaning pad mounted on the pad fixing part. The station includes a pad storage box in which a cleaning pad that is to be provided to the robot cleaner is stored, a pad coupling part on which a cleaning pad that is to be coupled to the robot cleaner is rested, and a pad supplier to supply the cleaning pad stored in the pad storage box to the pad coupling part.
    Type: Application
    Filed: November 4, 2019
    Publication date: May 7, 2020
    Inventors: Sin Ae KIM, Byoung In LEE, Dong Woo HA, Seok Man HONG, Dong Jun KIM, Ji Won CHOI
  • Patent number: 10588472
    Abstract: Disclosed herein is a vacuum cleaner including a brush to rotate and collect foreign materials on the floor, and a grinder to grind the foreign materials collected through the brush. Since the hair-like foreign materials wound around the brush are grinded and cut by the grinders, a cleaning cycle of the brush can be extended.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: March 17, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ji Won Choi, Byoung In Lee, Hak Bong Lee
  • Publication number: 20200076331
    Abstract: Provided is a self-resonance tuning piezoelectric energy harvester. The self-resonance tuning piezoelectric energy harvester includes a piezoelectric beam which extends along a horizontal direction, a fixing element which fixes two ends of the piezoelectric beam, and a mass which is connected to the piezoelectric beam movably along the piezoelectric beam, wherein the mass includes a through-hole through which the piezoelectric beam passes, and makes the movement through the through-hole. According to the principle of continuous movement to the resonance position, the mass of the self-resonance tuning piezoelectric energy harvester induces the piezoelectric beam to generate displacement to the maximum and maximize the electricity production capacity of the piezoelectric energy harvester.
    Type: Application
    Filed: March 8, 2019
    Publication date: March 5, 2020
    Inventors: Hyun-Cheol SONG, Chong Yun KANG, Jin Sang KIM, Ji-won CHOI, Seung Hyub BAEK, Seong Keun KIM, Sang Tae KIM, Youn-hwan SHIN
  • Patent number: 10529905
    Abstract: A method for manufacturing a thermoelectric material is provided. According to the method, a first shaped body is formed from a thermoelectric powder, of which a crystal has a layer structure. An extruded body is formed by extruding the first shaped body. A plurality of cut-off pieces are formed by cutting the extruded body along a cross-section perpendicular to an extrusion direction. A second shaped body is formed by stacking and pressing the cut-off pieces along a direction perpendicular to the extrusion direction. According to the above, a thermoelectric ability of a thermoelectric material and an efficiency for manufacturing a thermoelectric module may be improved.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: January 7, 2020
    Assignee: Korea Institute of Science and Technology
    Inventors: Jin-Sang Kim, Seung-Hyub Baek, Seong-Keun Kim, Dow-Bin Hyun, Beomjin Kwon, Ji-Won Choi, Chong-Yun Kang, Im-Jun Roh
  • Publication number: 20190388362
    Abstract: The present invention relates to: a method for providing information for the prediction or diagnosis of oral precancer or oral cancer characterized by confirming expression of the Axin2 gene or the Snail gene in an oral leukoplakia tissue sample or an oral submucous fibrosis tissue sample; and a use of a compound capable of delaying or inhibiting the progression of a precancerous lesion and recurrent oral cancer using the compound capable of effectively inhibiting the expression of the Axin2 gene or the Snail gene. According to the present invention, the possibility of oral leukoplakia or submucous fibrosis which causes white lesions to appear inside the oral cavity can be predicted and diagnosed, thereby being useful in eliminating the potential risks of oral cancer by early prediction of progression into oral precancer or oral cancer for which effective treatment does not currently exist.
    Type: Application
    Filed: July 2, 2019
    Publication date: December 26, 2019
    Inventors: Jong In YOOK, Hyun Sil KIM, Nam Hee KIM, Ji Won CHOI, In Ho CHA, Xianglan ZHANG, Chang Sung KIM
  • Publication number: 20190343783
    Abstract: The present invention relates to a pharmaceutical composition containing, as an active ingredient, niclosamide or pharmaceutically acceptable salts thereof, for treating or preventing disease related to Axin-GSK3 interaction, such as familial adenomatosis polyposis (FAP). According to the present invention, familial adenomatosis polyposis (FAP) which causes pain due to lack of specific treatment methods, can be effectively treated using niclosamide, which is a safe drug approved by the FDA.
    Type: Application
    Filed: January 9, 2018
    Publication date: November 14, 2019
    Inventors: Jong In YOOK, Hyun Sil KIM, Nam Hee KIM, Kyoung Tai NO, Ji Won CHOI, Tae Il KIM, Sung Yong AHN
  • Publication number: 20190333858
    Abstract: Provided is a dielectric layer that has a rock salt structure in a room temperature stable phase. The dielectric layer is made of a compound having a chemical formula of BexM1-xO, where M includes one of alkaline earth metals and x has a value greater than 0 and less than 0.5.
    Type: Application
    Filed: December 19, 2018
    Publication date: October 31, 2019
    Applicants: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY, INSTITUTE FOR BASIC SCIENCE, ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Seong Keun KIM, Woo Chul LEE, Sang Tae KIM, Hyun Cheol SONG, Seung Hyub BAEK, Ji Won CHOI, Jin Sang KIM, Chong Yun KANG, Christopher W. BIELAWSKI, Jung Hwan YUM, Eric S. LARSEN
  • Publication number: 20190189884
    Abstract: A thermoelectric composite material includes MXene inserted at a boundary of a crystal grain consisting of a thermoelectric material. Accordingly, the thermoelectric composite material may have a reduced thermal conductivity and an increased electrical conductivity. Furthermore, a mechanical property of the thermoelectric composite material may be improved. Thus, the thermoelectric composite material may improve a thermoelectric ability of a thermoelectric module.
    Type: Application
    Filed: June 4, 2018
    Publication date: June 20, 2019
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jin-Sang KIM, Chong-Min KOO, Seung-Hyub BAEK, Seong-Keun KIM, Chong-Yun KANG, Soon-Man HONG, Seung-Sang HWANG, Ji-Won CHOI, Seok-Jin YOON, Kwang-Chon KIM, Kyung-Youl BAEK, Sang-Ho CHO
  • Patent number: 10292586
    Abstract: The present invention relates to a non-invasive health indicator monitoring system including a sensing module, an electric power storage module, and a circuit module to collect health indicator information by contacting with a subject. In addition, the present invention also relates to a method for monitoring health indicator continuously by using the health indicator monitoring system.
    Type: Grant
    Filed: November 11, 2014
    Date of Patent: May 21, 2019
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Yong Won Song, Su Youn Lee, Ji Yeon Lee, Jung Ah Lim, Ji Won Choi, Byung Ki Cheong, Jin Seok Kim, Ho Seong Jang, Hyun Jung Yi
  • Publication number: 20190071584
    Abstract: A method of manufacturing an ink blocking layer for a display device, an ink blocking layer for a display device, and a display device are provided. The method of manufacturing an ink blocking layer for a display device includes: preparing a main material including an epoxy monomer having three or more epoxy groups and a curing agent including an acid and an amine; and mixing the main material with the curing agent to prepare an epoxy resin.
    Type: Application
    Filed: August 29, 2018
    Publication date: March 7, 2019
    Inventors: Dong Ho KIM, Ji Won CHOI
  • Patent number: 10217928
    Abstract: Disclosed is a curved piezoelectric device maximizing an electrical potential of the piezoelectric material corresponding to an external mechanical stress.
    Type: Grant
    Filed: May 18, 2016
    Date of Patent: February 26, 2019
    Assignee: Korea Institute of Science and Technology
    Inventors: Chong Yun Kang, Seok Jin Yoon, Jin Sang Kim, Ji-Won Choi, Seung Hyub Baek, Seong Keun Kim, Woo-Suk Jung, Beomjin Kwon
  • Publication number: 20190033618
    Abstract: Disclosed herein is a smart wearable lens mounted with an all-solid-state thin film secondary battery including a flexible substrate, a cathode current collector, a cathode, a solid electrolyte, an anode, and an anode current collector. The smart wearable lens mounted with the all-solid-state thin film secondary battery may be stably and continuously supplied with power and has a low self-discharge rate. In addition, the smart wearable lens may minimize aversion when humans are wearing the smart wearable lens and be suitably used for a curved lens, especially a micro-lens such as a contact lens.
    Type: Application
    Filed: July 25, 2018
    Publication date: January 31, 2019
    Inventors: Ji-Won CHOI, Yong-Won SONG, Hyunjung YI, Jin Sang KIM, Chong Yun KANG, Seong Keun KIM, Seung Hyub BAEK, Sang Tae KIM, Hyun Seok LEE
  • Publication number: 20180358146
    Abstract: The present disclosure relates to a paste for ohmic contact to p-type semiconductor, including a metal oxide and a binder, wherein the metal oxide is a rhenium oxide or a molybdenum oxide.
    Type: Application
    Filed: May 29, 2018
    Publication date: December 13, 2018
    Inventors: Ji-Won CHOI, Jin Sang KIM, Chong Yun KANG, Seong Keun KIM, Seung Hyub BAEK, Sang Tae KIM, Won Jae LEE, Narendra Singh PARMAR, Young-Shin LEE
  • Publication number: 20180247941
    Abstract: A capacitor for a semiconductor memory element includes a lower electrode, a dielectric layer disposed on the lower electrode and including titanium oxide, and an upper electrode disposed on the dielectric layer. The lower electrode includes a first metal and a second metal, the first metal including at least one selected from the group consisting of platinum (Pt), osmium (Os), rhodium (Rh) and palladium (Pd), the second metal including at least one selected from the group consisting of ruthenium (Ru) and iridium (Ir).
    Type: Application
    Filed: July 13, 2017
    Publication date: August 30, 2018
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Seong Keun KIM, Jung Joon PYEON, Cheol Jin CHO, Sangtae KIM, Doo Seok JEONG, Seung-Hyub BAEK, Chong-Yun KANG, Ji-Won CHOI, Jin-Sang KIM
  • Patent number: 10062699
    Abstract: A capacitor for a semiconductor memory element includes a lower electrode, a dielectric layer disposed on the lower electrode and including titanium oxide, and an upper electrode disposed on the dielectric layer. The lower electrode includes a first metal and a second metal, the first metal including at least one selected from the group consisting of platinum (Pt), osmium (Os), rhodium (Rh) and palladium (Pd), the second metal including at least one selected from the group consisting of ruthenium (Ru) and iridium (Jr).
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: August 28, 2018
    Assignee: Korea Institute of Science and Technology
    Inventors: Seong Keun Kim, Jung Joon Pyeon, Cheol Jin Cho, Sangtae Kim, Doo Seok Jeong, Seung-Hyub Baek, Chong-Yun Kang, Ji-Won Choi, Jin-Sang Kim
  • Publication number: 20180232867
    Abstract: An electronic device and an image conversion method of the electronic device, the electronic device comprising: a receiving unit for receiving a first image from a source device; a decoding unit for decoding brightness information of the first image; a converting unit for converting a dynamic range of the first image on the basis of the decoded brightness information, using a mapping function; and a display unit for displaying a second image having the converted dynamic range on a display, wherein the mapping function is a curve function including a plurality of points determined on the basis of the first image, a characteristic of a change in brightness of a display of the source device, and a characteristic of brightness of a scene of the first image. The present disclosure may generate, for example, a high dynamic range (HDR) image, which is improved from a standard dynamic range (SDR) image.
    Type: Application
    Filed: August 8, 2016
    Publication date: August 16, 2018
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seung-ho PARK, Seung-hoon HAN, Ji-won CHOI, Ho-cheon WEY, Young-su MOON
  • Publication number: 20180184862
    Abstract: Disclosed herein is a vacuum cleaner including a brush to rotate and collect foreign materials on the floor, and a grinder to grind the foreign materials collected through the brush. Since the hair-like foreign materials wound around the brush are grinded and cut by the grinders, a cleaning cycle of the brush can be extended.
    Type: Application
    Filed: December 28, 2017
    Publication date: July 5, 2018
    Inventors: Ji Won CHOI, Byoung In LEE, Hak Bong LEE
  • Publication number: 20180138386
    Abstract: A method for manufacturing a thermoelectric material is provided. According to the method, a first shaped body is formed from a thermoelectric powder, of which a crystal has a layer structure. An extruded body is formed by extruding the first shaped body. A plurality of cut-off pieces are formed by cutting the extruded body along a cross-section perpendicular to an extrusion direction. A second shaped body is formed by stacking and pressing the cut-off pieces along a direction perpendicular to the extrusion direction.
    Type: Application
    Filed: May 31, 2017
    Publication date: May 17, 2018
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jin-Sang KIM, Seung-Hyub Baek, Seong-Keun Kim, Dow-Bin Hyun, Beomjin Kwon, Ji-Won Choi, Chong-Yun Kang, Im-Jun Roh