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).

  • Publication number: 20180220884
    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: Application
    Filed: June 7, 2017
    Publication date: August 9, 2018
    Inventors: Choun Ki Joo, Young Sik Yoo, Suc Bei Moon
  • Publication number: 20180221343
    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: Application
    Filed: March 30, 2018
    Publication date: August 9, 2018
    Applicants: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY, CATHOLIC UNIVERSITY INDUSTRY ACADEMIC COOPERATION FOUNDATION
    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: 10004637
    Abstract: The present invention relates to an anterior capsulotomy guide device for cataract surgery. The present invention relates to an anterior capsulotomy guide device for cataract surgery which is temporarily inserted for anterior capsulotomy during cataract surgery, wherein the anterior capsulotomy guide device comprises a ring-shaped body, and a cut portion is formed by cutting a part of the body. According to the present invention, it is possible to carry out anterior capsulotomy with precise size and shape during cataract surgery, thereby maximizing the effect of cataract surgery.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: June 26, 2018
    Assignees: Catholic University Industry Academic Cooperation Foundation, Lucid Korea Co., Ltd.
    Inventors: Choun-Ki Joo, Dong Jin Chang, Chong Houn Lee, Dong Kun Lee
  • Patent number: 9896657
    Abstract: The present invention relates to a method of inducing differentiation of a stem cell into a corneal limbal stem cell, and a medium composition used therein. Further, the present invention relates to a pharmaceutical composition for treating corneal damage, including a corneal limbal stem cell differentiated using the above-described method as an active ingredient.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: February 20, 2018
    Assignee: THE CATHOLIC UNIVERSITY OF KOREA INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Choun-Ki Joo, Hyun Soo Lee
  • Publication number: 20180044512
    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: Application
    Filed: August 11, 2017
    Publication date: February 15, 2018
    Applicants: SEOYON E-HWA CO., LTD., HANYANG ADVENCED MATERIALS CO., LTD.
    Inventors: CHEOL WOO KIM, DEUK KI JOO, KI WOONG LEE
  • Publication number: 20170298905
    Abstract: The present invention relates to a system and method for controlling an output evaporation rate of a wind power plant. The system includes a wind power plant control unit configured to measure an output value of a wind power plant before a predetermined time from an output control time of the wind power plant, calculate a maximum output value of the wind power plant on the basis of the measured output value of the wind power plant, and distributing individual maximum output values of the wind power plant to individual wind power generators in the wind power plant and a wind power generator control unit configured to control outputs of the individual wind power generators according to the individual maximum output values when the individual maximum output values are distributed to the individual wind power generators.
    Type: Application
    Filed: May 20, 2015
    Publication date: October 19, 2017
    Inventors: Sang Ho PARK, Ki Joo KWON, Gi-Gab YOON, Young Do CHOY, Yong Chul KANG
  • Publication number: 20170274005
    Abstract: Disclosed is a complex for remedying or treating a retinal disease. The complex includes a hyaluronic acid or a derivative thereof, a carbon nanomaterial covalently bonded to the hyaluronic acid or the derivative thereof, and a photosensitizer bonded to the carbon nanomaterial. The complex for remedying or treating the retinal disease according to the present invention includes a hyaluronic acid-carbon nanomaterial-photosensitizer complex, thus selectively preventing the formation of active oxygen in retinal pigment epithelium cells for a relatively long period of time. Accordingly, the complex has excellent therapeutic efficacy and easily infiltrates into cells. Further, the present invention provides a composition for remedying or treating a retinal disease including the hyaluronic acid-carbon nanomaterial-photosensitizer complex.
    Type: Application
    Filed: December 20, 2016
    Publication date: September 28, 2017
    Inventors: Sei Kwang HAHN, Songeun Beack, Jun-Sub Choi, Choun-Ki Joo
  • Patent number: 9737210
    Abstract: The present invention provides a system and a method for performing a cataract surgery. The system of the present invention includes an optical coherence tomography apparatus, an image capturing device, and a central processing unit. The method includes imaging optical coherence tomography of a patient's eye using the optical coherence tomography apparatus, capturing the patient's optical coherence tomography with the image capturing device, generating a 3D image and coordinates of the patient's eye, and determining a central location of a pupillary margin and an iridocorneal angle using a central processing unit. The center of the anterior capsule of the human crystalline lens is then calculated by matching the iridocorneal angle to the central location of the pupillary margin.
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: August 22, 2017
    Assignee: the Catholic University Industry Academic Cooperation Foundation
    Inventor: Choun-ki Joo
  • Publication number: 20170222223
    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: Application
    Filed: May 11, 2016
    Publication date: August 3, 2017
    Applicant: GS Energy Corp.
    Inventors: Ki Joo HONG, Hyeon Hui BAEK, Dong Kyu YUN, Chang Joo HAN
  • Publication number: 20170221835
    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: Application
    Filed: September 16, 2016
    Publication date: August 3, 2017
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Do Jae YOO, Hee Jung JUNG, Jong In RYU, Ki Joo SIM
  • Patent number: 9704418
    Abstract: The present invention relates to an ocular surgery training device, which includes an eye model having a hole at one side, and a catheter inserted into the hole, wherein a pressure sensor for measuring a pressure applied to the hole by the catheter is provided at one end of the catheter. The present invention may provide the ocular surgery training device which may enhance the skill of users in performing ocular surgery, thereby preventing complications.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: July 11, 2017
    Assignee: The Catholic University of Korea Industry-Academic Cooperation Foundation
    Inventors: Dong Jin Chang, Choun-ki Joo
  • Publication number: 20170152268
    Abstract: The present invention relates to a novel indene derivative, a preparation method for the same, and a pharmaceutical composition for preventing or treating retinal disease comprising the same as an active ingredient. The novel indene derivative of the present invention, the optical 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).
    Type: Application
    Filed: January 27, 2017
    Publication date: June 1, 2017
    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
  • Patent number: 9610132
    Abstract: The present invention relates to a surgical instrument for cataract surgery, and provides the surgical instrument for assisting in distinguishing the anterior capsule during cataract surgery, including a ring-shaped body; and a light source provided on a bottom surface portion of the body.
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: April 4, 2017
    Assignee: The Catholic University of Korea Industry-Academic Cooperation Foundation
    Inventors: Choun-Ki Joo, Dong Jin Chang
  • Publication number: 20160315027
    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: Application
    Filed: January 21, 2016
    Publication date: October 27, 2016
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Jong In RYU, Ki Joo SIM, Do Jae YOO, Ki Ju LEE, Jin Su KIM
  • Publication number: 20160304836
    Abstract: The present invention relates to a method of inducing differentiation of a stem cell into a corneal limbal stem cell, and a medium composition used therein. Further, the present invention relates to a pharmaceutical composition for treating corneal damage, including a corneal limbal stem cell differentiated using the above-described method as an active ingredient.
    Type: Application
    Filed: August 11, 2015
    Publication date: October 20, 2016
    Inventors: Choun-Ki JOO, Hyun Soo LEE
  • Publication number: 20160308251
    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: Application
    Filed: November 25, 2015
    Publication date: October 20, 2016
    Inventor: seung-ki Joo
  • Publication number: 20160223842
    Abstract: One aspect of the present disclosure relates to a remotely controllable lens device. The lens device can include a lens material and a circuit physically coupled to the lens material. The circuit can be configured to be powered based on an energy signal from a power source to perform a function (e.g., release of drug, generation of electromagnetic radiation, detection of electromagnetic radiation, and/or control of an optical refractive property). For example, the power source can be an external power source and/or an auto-powered source. The external power source can be, for example, a power source that utilizes synchronized magnetic flux phase coupling (e.g., WiTricity). The auto-powered source can be provided on-site (e.g., on-chip) using a harvesting system (e.g., solar-cell, photo-cell, piezoelectric, etc.
    Type: Application
    Filed: September 9, 2014
    Publication date: August 4, 2016
    Inventors: Seok-Hyun Yun, Ehsan Kamrani, Sei Kwang Hahn, Hyemin Kim, Dohee Keum, Keon Jae Lee, Choun-Ki Joo
  • Publication number: 20160193234
    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: Application
    Filed: March 6, 2014
    Publication date: July 7, 2016
    Inventors: Choun-Ki JOO, Jun-Sub CHOI
  • Patent number: 9364552
    Abstract: The present invention relates to a composition for inhibiting after-cataract including a hydrophilic sulfasalazine; a high content of hyaluronic acid; and a carrier containing an aqueous solution, and a method of preparing a composition for inhibiting after-cataract including the steps of adding hyaluronic acid powder to a hydrophilized sulfasalazine; and mixing the same with a specific condition.
    Type: Grant
    Filed: January 9, 2012
    Date of Patent: June 14, 2016
    Assignees: BMI KOREA CO., LTD, CATHOLIC UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Yeong-Jun Baik, Choun-Ki Joo, Sung-Hee Lee, Jun-Sub Choi, Koo Woo
  • Publication number: 20160157952
    Abstract: The present invention relates to a surgical instrument for cataract surgery, and provides the surgical instrument for assisting in distinguishing the anterior capsule during cataract surgery, including a ring-shaped body; and a light source provided on a bottom surface portion of the body.
    Type: Application
    Filed: July 25, 2014
    Publication date: June 9, 2016
    Inventors: Choun-Ki JOO, Dong Jin CHANG