Patents by Inventor Geol CHOI

Geol 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: 9637761
    Abstract: The present invention relates to a recombinant microorganism metabolizing 3,6-anhydro-L-galactose and a use thereof, and, more particularly, can produce ethanol from a recombinant microorganism expressing an enzyme group involved in a metabolic pathway of 3,6-AHG.
    Type: Grant
    Filed: May 7, 2014
    Date of Patent: May 2, 2017
    Assignee: Korea University Research and Business Foundation
    Inventors: Kyoung Heon Kim, In-Geol Choi, Eun-Ju Yun, Sae Young Lee, Hee Taek Kim
  • Publication number: 20170099707
    Abstract: Provided is a light emission device. When the size of an input voltage exceeds a minimum light emission voltage, all light emission elements emit light always irrespective of the size of a voltage, and as the size of the voltage decreases, the light emission device has a configuration in which the light emission elements are connected in parallel with each other, and as the size of the voltage increases, the light emission device has a configuration in which the light emission elements are connected in series with each other.
    Type: Application
    Filed: November 20, 2016
    Publication date: April 6, 2017
    Applicant: LUMENS CO., LTD.
    Inventors: Soo Geun YOO, Hong Geol CHOI, Ho Young LEE, Myeong Kook GONG
  • Publication number: 20170071841
    Abstract: The present invention relates to a method for preparing 3,6-anhydro-L-galactose, and use thereof. More specifically, 3,6-anhydro-L-galactose, which is a monosaccharide constituting agar, is produced in a high yield through chemical and enzymatic methods, and the physiological activities thereof such as whitening, moisturizing, antioxidant, anti-inflammatory activities and the like are displayed, thereby enabling industrial use thereof.
    Type: Application
    Filed: November 15, 2016
    Publication date: March 16, 2017
    Applicant: Korea University Research and Business Foundation
    Inventors: Kyoung Heon Kim, In Geol Choi, Nam Joo Kang, Eun Ju Yun, Sae Young Lee, Ji Hye Kim, Young Ah Kim, Bo Bae Kim, Eun Ji Baek
  • Patent number: 9572212
    Abstract: Provided is a light emission device. When the size of an input voltage exceeds a minimum light emission voltage, all light emission elements emit light always irrespective of the size of a voltage, and as the size of the voltage decreases, the light emission device has a configuration in which the light emission elements are connected in parallel with each other, and as the size of the voltage increases, the light emission device has a configuration in which the light emission elements are connected in series with each other.
    Type: Grant
    Filed: January 13, 2015
    Date of Patent: February 14, 2017
    Assignee: LUMENS CO., LTD.
    Inventors: Soo Geun Yoo, Hong Geol Choi, Ho Young Lee, Myeong Kook Gong
  • Publication number: 20170012452
    Abstract: The present invention relates to a technology for implementing a bidirectional DC/DC converter in an ESS (Energy Storage System). According to the present invention, a two-phase interleaving technique and a ZVS (Zero Voltage Switching) cell are used to implement a high-efficiency bidirectional DC/DC converter, high-efficiency energy conversion can be performed through a plurality of voltage transformation processes, ripple can be reduced to stably exchange energy, the interleaving technique is used to reduce input current ripple and output voltage ripple, and conduction loss can be reduced under a relatively high load.
    Type: Application
    Filed: July 7, 2016
    Publication date: January 12, 2017
    Applicant: POSTECH ACADEMY-INDUSTRY FOUNDATION
    Inventors: Bong Koo KANG, Sang Won LEE, Kyung Min LEE, Yoon Geol CHOI
  • Patent number: 9487770
    Abstract: The present invention provides Hahella chejuensis-derived recombinant cellulase and a use thereof. The recombinant cellulase according to the present invention has a high stability at a high temperature and an optimized activity at a neutral pH, and therefore has a high availability in a process. Also, since the cellulase according to the present invention has an exoglucanase activity as well as an endoglucanase activity, a monosaccharide can be produced during decomposition of cellulose and an additional treatment required in a fermentation process is not needed, and therefore a cost may be reduced. Such an enzyme activity is advantageous to a fermentation or thermal treatment condition for producing a biofuel, and therefore industrial profits may be achieved.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: November 8, 2016
    Assignee: Korea University Research and Business Foundation
    Inventors: Kyoung Heon Kim, In-Geol Choi, Hee Jin Lee, In Jung Kim
  • Publication number: 20160293815
    Abstract: Disclosed herein is a light emitting device package strip capable of being used for a display application or an illumination application. The light emitting device package strip may include: a light emitting device package; and an upper adhesive sheet attached onto an upper surface of the light emitting device package so as to support the light emitting device package, wherein the light emitting device package includes: a flip-chip light emitting device having a first electrode pad and a second electrode pad; and a molding member formed to enclose side surfaces and an upper surface of the light emitting device such that the first electrode pad and the second electrode pad are exposed.
    Type: Application
    Filed: March 31, 2016
    Publication date: October 6, 2016
    Applicant: LUMENS CO., LTD.
    Inventors: Hong-Geol CHOI, Sung-OK CHOI, Sang-Hyub GIM, Seung-Hyun OH, Yun-Geon CHO, Bo-Gyun KIM, Suk-Min HAN, Jun-Hyeok HAN
  • Publication number: 20160279156
    Abstract: The present invention relates to a composition for preventing or treating colon cancer, containing 3,6-anhydro-L-galactose, and more specifically, provides excellent anti-cancer effects by inducing apoptosis of colon cancer cells and inhibiting the growth of colon cancer cells by using 3,6-anhydro-L-galactose separated from red algae-derived agar and purified.
    Type: Application
    Filed: March 11, 2014
    Publication date: September 29, 2016
    Applicant: Korea University Research and Business Foundation
    Inventors: Nam Joo Kang, Kyoung Heon Kim, In-Geol Choi, Young Ah Kim, Eun-Ju Yun, Sae Young Lee
  • Publication number: 20160265012
    Abstract: The present invention relates to agarooligosaccharide hydrolase and a method for producing 3,6-anhydro-L-galactose and galactose from agarose by using the same. More specifically, the production yield of 3,6-anhydro-L-galactose and galactose from agarose, that is, the saccharification yield, is improved by using ?-agarooligosaccharide hydrolase having an agarotriose hydrolytic activity.
    Type: Application
    Filed: October 8, 2014
    Publication date: September 15, 2016
    Applicant: Korea University Research and Business Foundation
    Inventors: Kyoung Heon Kim, In-Geol Choi, Chan Hyoung Lee, Hee Taek Kim, Eun-Ju Yun
  • Publication number: 20160205734
    Abstract: Provided is a light emission device. When the size of an input voltage exceeds a minimum light emission voltage, all light emission elements emit light always irrespective of the size of a voltage, and as the size of the voltage decreases, the light emission device has a configuration in which the light emission elements are connected in parallel with each other, and as the size of the voltage increases, the light emission device has a configuration in which the light emission elements are connected in series with each other.
    Type: Application
    Filed: January 13, 2015
    Publication date: July 14, 2016
    Inventors: Soo Geun YOO, Hong Geol CHOI, Ho Young LEE, Myeong Kook GONG
  • Publication number: 20160115504
    Abstract: The present invention relates to a recombinant microorganism metabolizing 3,6-anhydro-L-galactose and a use thereof, and, more particularly, can produce ethanol from a recombinant microorganism expressing an enzyme group involved in a metabolic pathway of 3,6-AHG.
    Type: Application
    Filed: May 7, 2014
    Publication date: April 28, 2016
    Applicant: Korea University Research and Business Foundation
    Inventors: Kyoung Heon Kim, In-Geol Choi, Eun-Ju Yun, Sae Young Lee, Hee Taek Kim
  • Publication number: 20160097043
    Abstract: The present invention provides Hahella chejuensis-derived recombinant cellulase and a use thereof. The recombinant cellulase according to the present invention has a high stability at a high temperature and an optimized activity at a neutral pH, and therefore has a high availability in a process. Also, since the cellulase according to the present invention has an exoglucanase activity as well as an endoglucanase activity, a monosaccharide can be produced during decomposition of cellulose and an additional treatment required in a fermentation process is not needed, and therefore a cost may be reduced. Such an enzyme activity is advantageous to a fermentation or thermal treatment condition for producing a biofuel, and therefore industrial profits may be achieved.
    Type: Application
    Filed: April 25, 2014
    Publication date: April 7, 2016
    Applicant: Korea University Research and Business Foundation
    Inventors: Kyoung Heon Kim, In-Geol Choi, Hee Jin Lee, In Jung Kim
  • Patent number: 9297000
    Abstract: Provided are novel ?-neoagarobiose hydrolase and a method for obtaining a monosaccharide using the same.
    Type: Grant
    Filed: September 14, 2011
    Date of Patent: March 29, 2016
    Assignee: Korea University Research and Business Foundation
    Inventors: In Geol Choi, Kyoung Heon Kim, Sae Young Lee
  • Patent number: 9251523
    Abstract: A system for autocompleting a general recommended word and an advertising recommended word, the system including: a first database configured to maintain an autocomplete general recommend word; a second database configured to maintain an autocomplete advertising recommended word; an autocomplete indexer component configured to index the autocomplete general recommended word and the autocomplete advertising recommended word; an autocomplete index database configured to classify and store the indexed autocomplete general recommended word and the autocomplete advertising recommended word; a web server configured to 1) receive an input query, and 2) transmit the input query to a predetermined query autocompletion server, and 3) receive the autocomplete general recommended word and the autocomplete advertising recommended word, and 4) display the autocomplete general recommended word and the autocomplete advertising recommended word; and the query autocompletion server is provided.
    Type: Grant
    Filed: February 12, 2007
    Date of Patent: February 2, 2016
    Assignee: NAVER CORPORATION
    Inventors: Taeil Kim, Young Kwang Park, JaeHo Choi, Jae Geol Choi, Kyoo Min Im
  • Patent number: 9181208
    Abstract: The present invention relates to a novel 3,6-anhydro-L-galactose dehydrogenase and to a novel compound produced therefrom. More specifically, provided is a 3,6-anhydro-L-galactose dehydrogenase which can produce 3,6-anhydrogalactonic acid of a novel type by metabolizing 3,6-anhydro-L-galactose.
    Type: Grant
    Filed: January 25, 2012
    Date of Patent: November 10, 2015
    Assignee: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: In-Geol Choi, Kyoung Heon Kim, Eun Ju Yun, Saeyoung Lee
  • Publication number: 20150216778
    Abstract: The present invention relates to a method for preparing 3,6-anhydro-L-galactose, and use thereof. More specifically, 3,6-anhydro-L-galactose, which is a monosaccharide constituting agar, is produced in a high yield through chemical and enzymatic methods, and the physiological activities thereof such as whitening, moisturizing, antioxidant, anti-inflammatory activities and the like are displayed, thereby enabling industrial use thereof.
    Type: Application
    Filed: January 18, 2013
    Publication date: August 6, 2015
    Applicant: Korea University Research and Business Foundation
    Inventors: Kyoung Heon Kim, In Geol Choi, Nam Joo Kang, Eun Ju Yun, Sae Young Lee, Ji Hye Kim, Young Ah Kim, Bo Bae Kim, Eun Ji Baek
  • Patent number: 8771996
    Abstract: Disclosed is a novel marine microorganism which can metabolize 3,6-anhydro-L-galactose and use of the same. The novel marine microorganism belongs to Vibrio sp. which utilizes 3,6-anhydro-L-galactose (3,6-L-AHG) as a single carbon source to convert 3,6-L-AHG to ribose and 3,6-anhydrogalactonic acid.
    Type: Grant
    Filed: July 25, 2012
    Date of Patent: July 8, 2014
    Assignee: Korea University Research and Business Foundation
    Inventors: Kyoung Heon Kim, In Geol Choi, Eun Ju Yun, Sae Young Lee
  • Publication number: 20130303743
    Abstract: The present invention relates to a novel 3,6-anhydro-L-galactose dehydrogenase and to a novel compound produced therefrom. More specifically, provided is a 3,6-anhydro-L-galactose dehydrogenase which can produce 3,6-anhydrogalactonic acid of a novel type by metabolizing 3,6-anhydro-L-galactose.
    Type: Application
    Filed: January 25, 2012
    Publication date: November 14, 2013
    Applicant: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: In-Geol Choi, Kyoung Heon Kim, Eun Ju Yun, Saeyoung LEE
  • Patent number: 8492126
    Abstract: An isolated polypeptide is disclosed that improves the hydrolyzing capacity of a polysaccharide hydrolase such as cellulase, is capable of binding to a polysaccharide, is deficient in polysaccharide hydrolase activity, and includes a GH45 or a pollen-allergen domain. Methods of hydrolyzing polysaccharides using the isolated polypeptide are also disclosed.
    Type: Grant
    Filed: September 2, 2010
    Date of Patent: July 23, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hwa Young Cho, Hyun Min Koo, Jae Chan Park, Sung Min Park, In Geol Choi, Kyoung Heon Kim
  • Patent number: 8486654
    Abstract: Provided herein are a composition for measuring 3,6-anhydro-L-galactose (3,6-L-AHG) transferase activity by reduction of NADP to NADPH, and a method of measuring 3,6-L-AHG transferase activity using the same. The composition and method are useful for determining 3,6-L-AHG in a material containing 3,6-L-AHG such as algae biomass and industrial applications.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: July 16, 2013
    Assignees: Samsung Electronics Co., Ltd., Korea University Research and Business Foundation
    Inventors: Hyun Min Koo, Sung Min Park, Jae Chan Park, Kyoung Heon Kim, In Geol Choi