Patents by Inventor Ki Joo

Ki Joo 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: 10595721
    Abstract: The present invention relates to a surgical apparatus for dissecting a part of cornea during lamellar keratoplasty, which provides a surgical apparatus comprising: an injector unit including a hollow injection needle having a bevel structure at one end; a laser unit for emitting a laser for OCT imaging; an OCT detection unit for photographing a tomographic image of the cornea using the laser; a laser light sensor located on an inner surface of the bevel structure of the injection needle and connected to the laser unit and the OCT detection unit through an optical fiber; and a depth adjusting unit for adjusting a depth of the injection needle in the cornea according to an operation of a user.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: March 24, 2020
    Assignee: The Catholic University of Korea Industry-Academic Cooperation Foundation
    Inventors: Choun Ki Joo, Young Sik Yoo, Suc Bei Moon
  • Publication number: 20200061904
    Abstract: According to an embodiment of the present disclosure, there is provided a completely new type of 3-dimensional (3D) printing method for producing an object by focusing ultrasound onto material that changes in state by stimulation to solidify it into a desired shape. The method for 3D printing according to an embodiment includes providing material which changes in state by stimulation, setting a target focal point in the material, focusing ultrasound onto the target focal point using at least one ultrasound transducer, and applying stimulation to the material using the focused ultrasound to induce a change in state of the material. According to the embodiments, it is possible to control the precision of the output by controlling the frequency of the ultrasound transducer or the size of the target focal point on system.
    Type: Application
    Filed: August 22, 2019
    Publication date: February 27, 2020
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Hyung Min Kim, Ki Joo Pahk, Byung Chul Lee, Inchan Youn
  • Publication number: 20200015961
    Abstract: There is provided an intraocular lens including an optic portion having a circular shape from one side thereof and including a first pattern which includes a ridge and a groove, and a plurality of haptic portions extending from an outer circumferential edge of the optic portion and each including a second pattern which includes a ridge and a groove, in which at least one of the ridges included in the first pattern and the second pattern and at least one of the grooves included in the first pattern and the second pattern includes a section in which a width is formed differently.
    Type: Application
    Filed: July 16, 2019
    Publication date: January 16, 2020
    Inventors: Ho Jeong JEON, Myoung Ryul OK, Yu Chan KIM, Hyun Kwang SEOK, Choun Ki JOO, Byoung Chan CHOI
  • Patent number: 10501473
    Abstract: The present invention relates to a novel indene derivative, a preparation method for the same, and a pharmaceutical composition for treating retinal disease comprising the same as an active ingredient. The novel indene derivative of the present invention, the optional isomer of the same, or the pharmaceutically acceptable salts of the same have excellent inhibitory efficiency of receptor-interacting serine-threonine-protein kinase 1 (RIPK1). Therefore, the composition containing the same as an active ingredient can be effectively used as a pharmaceutical composition for treating retinal disease.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: December 10, 2019
    Assignee: THE INDUSTRY & ACADEMIC COOPERATION IN CHUNGNAM NATIONAL UNIVERSITY (IAC)
    Inventors: Eunhee Kim, Sung-Eun Yoo, Nam Sook Kang, Tae-Sung Koo, Min-Young Park, Young-Hoon Kim, Hyun-Ju Bae, Jin-Woo Kim, Tae-Kyu In, Choun-Ki Joo
  • Publication number: 20190366126
    Abstract: A high-low intensity focused ultrasound treatment apparatus according to the present disclosure includes a plurality of ultrasound sources, and a controller to control a center frequency and intensity of focused ultrasound outputted from the ultrasound sources, wherein each of the ultrasound sources includes a first ultrasound transducer to output low-intensity focused ultrasound to detect a lesion, and a second ultrasound transducer to output high-intensity focused ultrasound to ablate or remove the detected lesion. The low-intensity focused ultrasound outputted from the first transducer may be used to detect a lesion in a patient's brain by applying a stimulus to the brain, and at the same time, investigating a response, and the high-intensity focused ultrasound outputted from the second transducer may be used to ablate or remove the detected lesion by applying a thermal or mechanical stimulus to the lesion.
    Type: Application
    Filed: June 4, 2019
    Publication date: December 5, 2019
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Ki Joo PAHK, Hyung Min KIM, Byung Chul LEE, Inchan YOUN
  • Patent number: 10485786
    Abstract: The present invention provides a pharmaceutical composition for preventing or treating macular degeneration, which comprises benzopyran derivatives substituted with secondary amines including imidazole or pharmaceutically acceptable salts thereof as an active ingredient. The pharmaceutical composition of the present invention may be used in the form of eye drops.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: November 26, 2019
    Assignee: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
    Inventors: Kyu-Yang Yi, Sung-Eun Yoo, Nack-Jeong Kim, Jee-Hee Suh, Choun-Ki Joo, Jun-Sub Choi, Jae-Sik Yang, Geun-Hyeog Lee, Yun-Seok Cho, Jin-Ha Park, Hye-Sung Lee
  • Patent number: 10465065
    Abstract: Disclosed herein is a compound composition for a vehicle interior material using a natural fiber, which has use for enhancing physical properties, such as shock resistance, tensile strength, flexural strength, elongation, flexural modulus of elasticity, and heat deflection temperature, while realizing a reduction in weight of a vehicle. The compound composition is composed of a base resin obtained by mixing a high-fluidity polypropylene resin and a high-impact polypropylene resin, the base resin being a thermoplastic resin, a reinforcing filler that is a lightweight, eco-friendly, and low-density natural fiber, an impact modifier that is ethylene-propylene-octene rubber, an inorganic filler that functions as a nuclear agent, and a maleic-anhydride compatibilizer.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: November 5, 2019
    Assignees: HANYANG ADVENCED MATERIALS CO., LTD., SEOYON E-HWA CO., LTD.
    Inventors: Cheol Woo Kim, Deuk Ki Joo, Ki Woong Lee
  • Publication number: 20190288295
    Abstract: Provided is a lithium negative electrode having metal foam capable of significantly improving the safety and reliability of a lithium secondary battery by suppressing volume expansion and consumption of a lithium material due to charge/discharge repetition of the lithium secondary battery, and a lithium secondary battery using the lithium negative electrode. The negative electrode for a lithium secondary battery includes: a negative electrode current collector made of metal foam having a plurality of pores whose inner portions are empty; and a lithium thin film attached to a rear surface of the electrode current collector.
    Type: Application
    Filed: January 3, 2019
    Publication date: September 19, 2019
    Inventor: Seung-ki Joo
  • Publication number: 20190177690
    Abstract: The present invention relates to a method for culturing corneal stem cell-like cell lines by inducing differentiation of induced pluripotent stem cells (iPSC). The method comprises the following steps: preparing a basal medium comprising DMEM F12, L-ascorbic acid, sodium selenite, and sodium chloride; adding additives for culturing induced pluripotent stem cells to the basal medium; preparing a feeder free culture medium by coating the basal medium with Vitronectin recombinant human protein; adding induced pluripotent stem cells to the feeder free culture medium and culturing them; adding additives for creating an environment for stem cell growth to the feeder free culture medium; adding BMP4 and Wnt3a sequentially to the feeder free culture medium in order to induce differentiation of the induced pluripotent stem cells into corneal stem cell-like cell lines; and culturing the cells differentiated from the induced pluripotent stem cells in PI culture fluid.
    Type: Application
    Filed: August 4, 2017
    Publication date: June 13, 2019
    Inventors: Choun Ki JOO, Jee Won MOK, Hee Jung JU, Jun Sub CHOI
  • Publication number: 20190170737
    Abstract: Embodiments described herein may be useful in the detection of analytes. The systems and methods may allow for a relatively simple and rapid way for detecting analytes such as chemical and/or biological analytes and may be useful in numerous applications including sensing, food manufacturing, medical diagnostics, performance materials, dynamic lenses, water monitoring, environmental monitoring, detection of proteins, detection of DNA, among other applications. For example, the systems and methods described herein may be used for determining the presence of a contaminant such as bacteria (e.g., detecting pathogenic bacteria in food and water samples which helps to prevent widespread infection, illness, and even death). Advantageously, the systems and methods described herein may not have the drawbacks in current detection technologies including, for example, relatively high costs, long enrichment steps and analysis times, and/or the need for extensive user training.
    Type: Application
    Filed: November 27, 2018
    Publication date: June 6, 2019
    Applicant: Massachusetts Institute of Technology
    Inventors: Timothy M. Swager, Hadley Sikes Johnson, Qifan Zhang, Eric Alexander Miller, Lukas Zeininger, Ki-Joo Sung, Kosuke Yoshinaga
  • Patent number: 10279046
    Abstract: The present invention relates to a composition for treating an ocular inflammatory disease, comprising hydrophilic sulfasalazine and hyaluronic acid, and a preparation method therefor. Furthermore, the present invention relates to a method for treating an ocular inflammatory disease, which comprises administering, to an individual, a therapeutically effective amount of hydrophilic sulfasalazine and hyaluronic acid.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: May 7, 2019
    Assignee: CATHOLIC UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Choun-Ki Joo, Jun-Sub Choi
  • Publication number: 20190113512
    Abstract: The present disclosure relates to proteins comprising a target-binding domain for detection of a target of interest, methods, compositions and kits thereof.
    Type: Application
    Filed: October 12, 2018
    Publication date: April 18, 2019
    Applicant: Massachusetts Institute of Technology
    Inventors: Hadley Sikes Johnson, Eric Alexander Miller, Ki-Joo Sung
  • Publication number: 20190097264
    Abstract: Provided is a method of manufacturing a lithium secondary battery, the method including: preparing positive and negative metal foams having a plurality of first pores; controlling first pore sizes of the metal foams depending on an application; filling the first pores with a slurry obtained by mixing a positive electrode active material or a negative electrode active material, a binder, a conductive material, and an organic solvent; heat-treating the metal foams to form second pores having a size smaller than those of the first pores. The first pore size of the metal foam can be controlled, so that a high capacity and high output battery can be manufactured depending on the usage.
    Type: Application
    Filed: September 5, 2018
    Publication date: March 28, 2019
    Inventor: Seung-ki Joo
  • Patent number: 10230106
    Abstract: The present disclosure provides a cathode active material comprising: lithium transition metal oxide-based particles; and a titanium dioxide coating layer formed on a part or a whole of a surface of the particle, in which the titanium dioxide coating layer is a partially reduced TiO2?x (0<x<2), a preparation method thereof, and a lithium secondary battery including the cathode active material. The cathode active material of the present disclosure may significantly improve electrochemical properties of an electrochemical device including the cathode active material, preferably a lithium secondary battery by decomposing lithium-containing impurities remaining on the surface of the cathode active material by a partially reduced titanium dioxide coating layer formed on the surface of the cathode active material and enhancing the electrical conductivity of the cathode active material.
    Type: Grant
    Filed: May 11, 2016
    Date of Patent: March 12, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Ki Joo Hong, Hyeon Hui Baek, Dong Kyu Yun, Chang Joo Han
  • Publication number: 20190047245
    Abstract: The present disclosure relates to a foldable honeycomb structure widely used as an industrial material, a landscape material, and a building material, and a manufacturing method therefor. More specifically, the present disclosure relates to a foldable honeycomb structure and a manufacturing method therefor, wherein a foldable honeycomb structure capable of being folded and unfolded is easily produced using a readily foldable film or sheet made of a plastic material, paper, a metal material, or a non-metal material, instead of prior art molding or extrusion methods.
    Type: Application
    Filed: March 9, 2017
    Publication date: February 14, 2019
    Inventor: Duok Ki JOO
  • Publication number: 20190029561
    Abstract: An image registration system using a subject-specific tracker includes: a photographing unit for obtaining a scanning image; a fabricated tracker based on anatomical data of the user including tracking markers for defining relative positions; a recognizing unit configured to recognize positions of the tracking markers and an image registration unit configured to register the scanning image based on the positions of the tracking markers. According to the system, a body part of the user and a scanning image may be automatically registered without a conventional image registration process such as an attachment of a fiducial marker and a confirmation of the fiducial marker position using CT/MRI imaging. Accordingly, it is possible to minimize an error caused by human, ensure precise registration, allow trackers to be attached or detached as necessary during surgery operation, and keep the accuracy of registration after the trackers are attached or detached.
    Type: Application
    Filed: July 25, 2018
    Publication date: January 31, 2019
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Hyung Min KIM, Hae Young JOE, Ki Joo PAHK, Inchan YOUN, Seung-Jong KIM
  • Publication number: 20190022424
    Abstract: A focused ultrasound stimulation apparatus according to the present disclosure includes a transducer which outputs low intensity/high intensity ultrasound, an acoustic lens which is placed in close contact with a user's skin and is customized to focus the ultrasound onto a target focal point, and a fixture for fixing the transducer and the acoustic lens to each other. The acoustic lens is customized using a 3-dimensional (3D) printer based on the pre-captured user's cranial shape, to focus the ultrasound a desired focus target for each user, thereby improving accuracy compared to conventional ultrasound stimulation apparatus.
    Type: Application
    Filed: January 11, 2018
    Publication date: January 24, 2019
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Hyung Min KIM, Ki Joo PAHK, Inchan YOUN, Seung-Jong KIM, Yoha HWANG
  • Patent number: 10163746
    Abstract: A semiconductor package and manufacturing method thereof includes a chip member installed on an upper surface, a lower surface, or both of a substrate. The semiconductor package and manufacturing method thereof also include a mold part stacked embedding the chip member, a connection member disposed at a center portion of the mold part, and a solder part formed on a portion of the connection member.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: December 25, 2018
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Jong In Ryu, Ki Joo Sim, Do Jae Yoo, Ki Ju Lee, Jin Su Kim
  • Patent number: 10109595
    Abstract: A double-sided package module includes a substrate, a first sealing member, a second sealing member, and an extension portion. The substrate includes electronic components positioned on a first surface and a second surface of the substrate. The first sealing member and the second sealing member are positioned on the first surface and the second surface, respectively. The extension portion protrudes from a lateral surface of the substrate into a space between the first sealing member and the second sealing member.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: October 23, 2018
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Do Jae Yoo, Hee Jung Jung, Jong In Ryu, Ki Joo Sim
  • Patent number: 10096861
    Abstract: Provided is a method of manufacturing a lithium secondary battery, in which, after filling a slurry containing a positive electrode active material in a plurality of pores of a metal foam, followed by performing a heat treatment process under an optimal condition, the positive electrode active material is firmly adhered in the plurality of pores of the metal foam, to thus prevent a positive electrode active material from being peeled off from the pores at the time of driving the lithium secondary battery, and increase reliability of the lithium secondary battery.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: October 9, 2018
    Assignee: LITHIUM PLUS INC
    Inventor: seung-ki Joo