Patents by Inventor Do Hyung Kang

Do Hyung Kang 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: 20240066564
    Abstract: Proposed are a substrate processing apparatus and a substrate processing method capable of efficiently preventing contamination of a substrate and a processing space caused by a reverse flow of purge gas.
    Type: Application
    Filed: March 27, 2023
    Publication date: February 29, 2024
    Applicant: SEMES CO., LTD.
    Inventors: Do Hyung KIM, Dae Hun KIM, Young Jin KIM, Tae Ho KANG, Young Joon HAN, Eun Hyeok CHOI, Jun Gwon LEE
  • Publication number: 20230032072
    Abstract: The present invention relates to a novel human epidermal growth factor (hEGF)-trigger factor (TF) fusion protein and a use thereof. More particularly, the human epidermal growth factor (hEGF)-trigger factor (TF) fusion protein of the present invention has fused therein: a signal peptide of a Bacillus subtilis-derived xylanase; a human epidermal growth factor (hEGF); and an Escherichia coli-derived trigger factor (TF). Therefore, the present invention not only enhances the water solubility and expression rate of a target protein, but also notably enhances useful effects such as the effects of increasing skin cell growth and healing a wound, and thus may be widely used in various industries as an active ingredient for a functional cosmetic composition and a pharmaceutical composition.
    Type: Application
    Filed: November 6, 2020
    Publication date: February 2, 2023
    Inventors: Chul Hong OH, Yoon Hyeok KANG, Eun Young JO, Do Hyung KANG, Young Deuk LEE, Duck Hee JANG, Ye Hui GANG, Tae Yang EOM, Sachithra Amarin HETTIARACHCHI
  • Publication number: 20220160798
    Abstract: An object of the present invention is to preserve the total content of chlorophyll in an extract while increasing the extraction yield of a Spirulina extract. Another object of the present invention is to provide a pharmaceutical composition and health functional food for prevention or treatment of degenerative cranial nerve diseases containing a Spirulina extract as an active ingredient, and to provide a method for treating degenerative cranial nerve diseases using a Spirulina extract. The present invention provides a method for producing a Spirulina extract including the steps of (a) preparing a Spirulina powder; (b) adding 50% to 80% of ethanol to the Spirulina powder and performing an ultrasonic pretreatment at 15° C. to 35° C.; (c) extracting a Spirulina extract at 50° C. to 80° C.; (d) vacuum-concentrating the Spirulina extract; and (e) freeze-drying the vacuum-concentrated Spirulina extract.
    Type: Application
    Filed: February 19, 2020
    Publication date: May 26, 2022
    Inventors: Do-Hyung KANG, Taeko KIM, Youngdeuk LEE, Woon-Yong CHOI, Yong Kyun YOU, Won Kyu LEE, Areumi PARK
  • Patent number: 11266346
    Abstract: A sleep state determination method using biometric and motion information includes acquiring motion information of a user using a motion sensor; determining a primary sleep state of the user based on the acquired motion information; acquiring biometric information of the user using a biometric sensor when the primary sleep state is determined; and determining a final sleep state of the user by combining the acquired biometric information and the primary sleep state.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: March 8, 2022
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Hyun Soon Shin, Do Hyung Kang, Chan Young Hahm
  • Patent number: 11064906
    Abstract: A method and apparatus for determining a respiration state on the basis of a plurality of biological indicators calculated using bio-signals. The method for determining a respiration state on the basis of a plurality of biological indicators calculated using bio-signals includes collecting a photoplethysmography (PPG) signal measured by a PPG sensor and a cutaneous electric signal measured by an electrodermal activity (EDA) sensor; analyzing the collected PPG signal and cutaneous electric signal and calculating a plurality of biological indicators including a respiration rate; and comprehensively evaluating the plurality of biological indicators to determine a user's respiration state.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: July 20, 2021
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Hyun Soon Shin, Do Hyung Kang, Chan Young Hahm, Seung Yoon Nam, John Lorenzo
  • Publication number: 20190231221
    Abstract: A method and apparatus for determining a respiration state on the basis of a plurality of biological indicators calculated using bio-signals. The method for determining a respiration state on the basis of a plurality of biological indicators calculated using bio-signals includes collecting a photoplethysmography (PPG) signal measured by a PPG sensor and a cutaneous electric signal measured by an electrodermal activity (EDA) sensor; analyzing the collected PPG signal and cutaneous electric signal and calculating a plurality of biological indicators including a respiration rate; and comprehensively evaluating the plurality of biological indicators to determine a user's respiration state.
    Type: Application
    Filed: January 29, 2019
    Publication date: August 1, 2019
    Inventors: Hyun Soon SHIN, Do Hyung KANG, Chan Young HAHM, Seung Yoon NAM, John Lorenzo
  • Publication number: 20180353125
    Abstract: A sleep state determination method using biometric and motion information includes acquiring motion information of a user using a motion sensor; determining a primary sleep state of the user based on the acquired motion information; acquiring biometric information of the user using a biometric sensor when the primary sleep state is determined; and determining a final sleep state of the user by combining the acquired biometric information and the primary sleep state.
    Type: Application
    Filed: June 5, 2018
    Publication date: December 13, 2018
    Inventors: Hyun Soon SHIN, Do Hyung KANG, Chan Young HAHM
  • Publication number: 20170136075
    Abstract: A Spirulina maxima extract of the present invention and Allophycocyanin (APC), R-phycoerythrin (R-PE), and C-phycocyanin (C-PC), which are components of the Spirulina maxima extract, show an effect of inhibiting cell death and A2E (pyridinium bis-retinoid), oxidation due to blue light, and therefore can be usefully applied as an active ingredient in a composition for preventing and treating retinal disease.
    Type: Application
    Filed: December 12, 2016
    Publication date: May 18, 2017
    Applicants: JCREATION
    Inventors: Se Young CHOUNG, Dong Joon KIM, Seung Won YANG, Sang Ho CHOI, Do Hyung KANG, Soo Jin HEO
  • Publication number: 20150132818
    Abstract: Disclosed is a method of saccharifying biomass, such as algae or agricultural by-products by performing a high-pressure extrusion pulverization process for the biomass, such as algae or agricultural by-products, and more particularly to a method of saccharifying biomass, which includes homogenizing and crushing algae or agricultural by-products, and extruding the algae or agricultural by-products through a micro-diameter tube to pulverize the algae or agricultural by-products. Non-biodegradable polymers, such as cellulose, which is a polysaccharide included in biomass, such as algae or agricultural by-products, hemicelluloses, starch, and complex polysaccharide, are hydrolyzed at high glycosylation efficiency through an eco-friendly pretreatment process using water.
    Type: Application
    Filed: May 2, 2012
    Publication date: May 14, 2015
    Inventors: Do-Hyung Kang, Hyeon-Yong Lee, Woon-Yong Choi, Choon-Geun Lee, Yong-Chang Seo, Ji-Seon Kim, Chi-Ho Song, Kyung-Hwan Jung, Sang-Eun Lee
  • Publication number: 20140113276
    Abstract: Disclosed is a plant for producing microalgae biofuel. The plant includes a plant space part having an internal space, a culture part provided in the internal space of the plant space part to culture microalgae by continuously circulating a fluid, which includes the microalgae and is supplied from an outside, at positions different from each other, and a temperature adjusting part to adjust a temperature value of the internal space in the plant space part to a temperature value in a preset temperature value range.
    Type: Application
    Filed: September 6, 2011
    Publication date: April 24, 2014
    Inventors: Do-Hyung Kang, Soo-Jin Heo, Chol-Hong Oh, Tae-Ho Kim, Heung-Sik Park, Affan Abu
  • Patent number: 8367355
    Abstract: Disclosed are an antigen protein of black-lip pearl oyster egg extract, an antibody specific thereto, and a method of quantitative assessment of the reproductive effort of black-lip pearl oyster using the antibody. The method accomplishes quantitative assessment of reproductive effort of black-lip pearl oysters easily and accurately. In addition, the method provides important information for the study of life cycles of black-lip pearl oysters, and allows efficient management of black-lip pearl oysters.
    Type: Grant
    Filed: April 13, 2010
    Date of Patent: February 5, 2013
    Assignee: Korea Ocean Research And Development Institute
    Inventors: Do Hyung Kang, Kwang Sik Choi, Hee Do Jeoung, Heung Sik Park
  • Publication number: 20110097750
    Abstract: Disclosed are an antigen protein of black-lip pearl oyster egg extract, an antibody specific thereto, and a method of quantitative assessment of the reproductive effort of black-lip pearl oyster using the antibody. The method accomplishes quantitative assessment of reproductive effort of black-lip pearl oysters easily and accurately. In addition, the method provides important information for the study of life cycles of black-lip pearl oysters, and allows efficient management of black-lip pearl oysters.
    Type: Application
    Filed: April 13, 2010
    Publication date: April 28, 2011
    Applicant: KOREA OCEAN RESEARCH AND DEVELOPMENT INSTITUTE
    Inventors: Do Hyung Kang, Kwang Sik Choi, Hee Do Jeoung, Heung Sik Park
  • Patent number: 7763724
    Abstract: A high-pressure liquefied extract of marine algae for producing bioethanol and a method of producing the liquid extract from marine algae under high pressure, and a method of producing the bioethanol from the high-pressure liquid extract by fermentation with yeast are disclosed. According to the production method of bioethanol using marine algae, the high-pressure liquefied extract can be obtained in high yield and fermentation time can be also reduced. Consequently, the yield of bioethanol is increased. Furthermore, the method gives economical and environmentally friendly values from natural marine algae.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: July 27, 2010
    Assignee: Korea Ocean Research And Development Institute
    Inventors: Do Hyung Kang, Hyeon Yong Lee, Jae Gun Han, Heung Sik Park, Hyi Seung Lee, Rae Seon Kang
  • Publication number: 20100041926
    Abstract: A high-pressure liquefied extract of marine algae for producing bioethanol and a method of producing the liquid extract from marine algae under high pressure, and a method of producing the bioethanol from the high-pressure liquid extract by fermentation with yeast are disclosed. According to the production method of bioethanol using marine algae, the high-pressure liquefied extract can be obtained in high yield and fermentation time can be also reduced. Consequently, the yield of bioethanol is increased. Furthermore, the method gives economical and environmentally friendly values from natural marine algae.
    Type: Application
    Filed: July 31, 2009
    Publication date: February 18, 2010
    Applicant: KOREA OCEAN RESEARCH AND DEVELOPMENT INSTITUTE
    Inventors: Do Hyung Kang, Hyeon Yong Lee, Jae Gun Han, Heung Sik Park, Hyi Seung Lee, Rae Seon Kang