Patents by Inventor Chanhyuk Park

Chanhyuk Park 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: 11760674
    Abstract: A semiconductor process wastewater treatment system and a semiconductor process wastewater treatment method using the same are disclosed. The disclosed semiconductor process wastewater treatment system may comprises: a processing unit configured to receive semiconductor process wastewater and treats the semiconductor process wastewater through a plurality of operations; and a membrane filtration tank arranged separately from the processing unit, the membrane filtration tank having a ceramic nano-membrane for filtering the semiconductor process wastewater which has passed through the processing unit, wherein the ceramic nano-membrane may include a carbon-based nano-material. The ceramic nano-membrane may include a graphene-based nano-material as the carbon-based nano-material.
    Type: Grant
    Filed: October 26, 2021
    Date of Patent: September 19, 2023
    Assignees: SK hynix Inc., Ewha University—Industry Collaboration Foundation
    Inventors: Sehyuk Ahn, Chanhyuk Park, Soyoun Kim, Minju Cha
  • Publication number: 20220194869
    Abstract: The present disclosure relates to a ceramic graphene oxide nanofiltration membrane which is high in mechanical stability while having ion removal ability by alternately stacking GO and PEI on a ceramic nanomembrane by allowing a carboxyl group (—COOH) and an amine group (—NH2) to form a covalent bond in the presence of N-ethyl-N?-[3-(dimethylamino)propyl]carbodiimide hydrochloride (EDC), thereby forming an amide group (—CONH), and a method for manufacturing the same.
    Type: Application
    Filed: December 15, 2021
    Publication date: June 23, 2022
    Inventors: Chanhyuk Park, Minju Lee, So-Youn Kim, Min-Ju Cha, Hee-Jin Kook
  • Publication number: 20220127177
    Abstract: A semiconductor process wastewater treatment system and a semiconductor process wastewater treatment method using the same are disclosed. The disclosed semiconductor process wastewater treatment system may comprises: a processing unit configured to receive semiconductor process wastewater and treats the semiconductor process wastewater through a plurality of operations; and a membrane filtration tank arranged separately from the processing unit, the membrane filtration tank having a ceramic nano-membrane for filtering the semiconductor process wastewater which has passed through the processing unit, wherein the ceramic nano-membrane may include a carbon-based nano-material. The ceramic nano-membrane may include a graphene-based nano-material as the carbon-based nano-material.
    Type: Application
    Filed: October 26, 2021
    Publication date: April 28, 2022
    Inventors: Sehyuk AHN, Chanhyuk PARK, Soyoun KIM, Minju CHA
  • Patent number: 10384965
    Abstract: The present invention relates to a sewage treatment system using granules, and more particularly, the sewage treatment system includes: an anoxic tank which has a sewage inlet port into which sewage is introduced; an anaerobic tank which is connected to the anoxic tank; intermittent aeration tanks which are connected to the anaerobic tank, have two or more separately divided spaces, and have, in the spaces, granules and aeration devices that alternately operate; and a settling tank which is connected to the intermittent aeration tanks, and the sewage treatment system is operated by a method including: a first step of introducing sewage; a second step of allowing the introduced sewage to pass through the anoxic tank and to be supplied with carbon; a third step of allowing the sewage passing through the anoxic tank to be introduced into the anaerobic tank; a fourth step of allowing the sewage passing through the anaerobic tank to be introduced into a first intermittent aeration tank and a second intermittent ae
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: August 20, 2019
    Assignees: Samyoung Global, Korea Institute of Science and Technology
    Inventors: Chanhyuk Park, Yunchul Chung, Yongxun Jin, Min Kyu Choi, Changhyun Ryu, Dongkuk Shin, Daeyoung Kwon
  • Publication number: 20190092666
    Abstract: The present invention relates to a sewage treatment system using granules, and more particularly, the sewage treatment system includes: an anoxic tank which has a sewage inlet port into which sewage is introduced; an anaerobic tank which is connected to the anoxic tank; intermittent aeration tanks which are connected to the anaerobic tank, have two or more separately divided spaces, and have, in the spaces, granules and aeration devices that alternately operate; and a settling tank which is connected to the intermittent aeration tanks, and the sewage treatment system is operated by a method including: a first step of introducing sewage; a second step of allowing the introduced sewage to pass through the anoxic tank and to be supplied with carbon; a third step of allowing the sewage passing through the anoxic tank to be introduced into the anaerobic tank; a fourth step of allowing the sewage passing through the anaerobic tank to be introduced into a first intermittent aeration tank and a second intermittent ae
    Type: Application
    Filed: October 23, 2017
    Publication date: March 28, 2019
    Inventors: CHANHYUK PARK, YUNCHUL CHUNG, YONGXUN JIN, MIN KYU CHOI, CHANGHYUN RYU, DONGKUK SHIN, DAEYOUNG KWON
  • Patent number: 9579261
    Abstract: Disclosed is a method for preparing a liposome formulation. In the disclosed method, a lipid fraction is dissolved in an organic solvent. The solution including a bioactive component and the lipid fraction, together with a carrier, is put in a reaction vessel, and a supercritical fluid is introduced thereto, so as to prepare particles coated with the bioactive component-lipid. The supercritical fluid is discharged by compression to obtain proliposome particles, and then the proliposome particles are hydrated by an aqueous solution including water so as to form a liposome solution. Preferably, the formulation may include one or more bioactive components. As required, the liposome formulation may be further processed by methods such as particle size reduction, removal of organic solvent, and freeze-drying. The preparation method can be easily carried out at a laboratory scale. Furthermore, the same method can be employed in liposome formulation preparation in mass production, or at a commercial scale.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: February 28, 2017
    Assignee: BCWORLD PHARM. CO., LTD.
    Inventors: Sung Joo Hwang, Hee Jun Park, Wonkyung Cho, Kwang-Ho Cha, Junsung Park, Chanhyuk Park, Donggeon Gu
  • Patent number: 9579630
    Abstract: Provided is a bead in which an adsorbent and an organic contaminant-degrading microorganism are supported, wherein an adsorbent for adsorbing organic contaminants is supported on the bead together with an organic contaminant-degrading microorganism for degrading the organic contaminants adsorbed to the adsorbent to allow for the adsorbent to remove organic contaminants in water and to allow for the organic contaminant-degrading microorganism to regenerate the adsorbent.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: February 28, 2017
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jae Woo Choi, Soonjae Lee, Kyung Min Lee, Seulki Cho, Chang Gu Lee, Chanhyuk Park, Sanghyup Lee
  • Publication number: 20170007984
    Abstract: Provided is a bead in which an adsorbent and an organic contaminant-degrading microorganism are supported, wherein an adsorbent for adsorbing organic contaminants is supported on the bead together with an organic contaminant-degrading microorganism for degrading the organic contaminants adsorbed to the adsorbent to allow for the adsorbent to remove organic contaminants in water and to allow for the organic contaminant-degrading microorganism to regenerate the adsorbent.
    Type: Application
    Filed: March 9, 2016
    Publication date: January 12, 2017
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jae Woo CHOI, Soonjae LEE, Kyung Min LEE, Seulki CHO, Chang Gu LEE, Chanhyuk PARK, Sanghyup LEE
  • Publication number: 20130069261
    Abstract: Disclosed is a method for preparing a liposome formulation. In the disclosed method, a lipid fraction is dissolved in an organic solvent. The solution including a bioactive component and the lipid fraction, together with a carrier, is put in a reaction vessel, and a supercritical fluid is introduced thereto, so as to prepare particles coated with the bioactive component-lipid. The supercritical fluid is discharged by compression to obtain proliposome particles, and then the proliposome particles are hydrated by an aqueous solution including water so as to form a liposome solution. Preferably, the formulation may include one or more bioactive components. As required, the liposome formulation may be further processed by methods such as particle size reduction, removal of organic solvent, and freeze-drying. The preparation method can be easily carried out at a laboratory scale. Furthermore, the same method can be employed in liposome formulation preparation in mass production, or at a commercial scale.
    Type: Application
    Filed: February 24, 2011
    Publication date: March 21, 2013
    Inventors: Sung Joo Hwang, Hee Jun Park, Wonkyung Cho, Kwang-Ho Cha, Junsung Park, Chanhyuk Park, Donggeon Gu