Patents by Inventor Chang Hwan Bae

Chang Hwan Bae 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: 11953014
    Abstract: An integrated water pump and valve device in which a water pump and a valve are integrally controlled by a single controller, and the water pump and the valve are integrated, thereby reducing an overall size.
    Type: Grant
    Filed: February 9, 2022
    Date of Patent: April 9, 2024
    Assignee: GMB KOREA CORP.
    Inventors: Kyung Hwan Kim, Chang Hyun Park, Jae Sung Bae
  • Patent number: 11920707
    Abstract: A sealed sleeve installed at an insertion coupling portion in a state in which a first pipe and a second pipe are insertion coupled to each other in order to seal couple the first pipe having a first outer diameter and a first inner diameter and the second pipe having a second outer diameter and a second inner diameter larger than the first outer diameter includes: a pillar shaped-main body having a main body central shaft; a through-hole formed using the main body central shaft as a central shaft on the main body and having an inlet as a second pipe side opening in an installation state and an outlet as a first pipe side opening in an installation state, wherein in the through-hole, a pressing portion that applies a sealing pressure to the insertion coupling portion is formed in a portion of an inner wall, and an inner diameter of the pressing portion is smaller than the second outer diameter.
    Type: Grant
    Filed: June 14, 2021
    Date of Patent: March 5, 2024
    Assignees: HANATECH CO., LTD., AIM TECH CO., LTD.
    Inventors: Chang Hwan Bae, Hyo Sang Lee
  • Publication number: 20210372546
    Abstract: A sealed sleeve installed at an insertion coupling portion in a state in which a first pipe and a second pipe are insertion coupled to each other in order to seal couple the first pipe having a first outer diameter and a first inner diameter and the second pipe having a second outer diameter and a second inner diameter larger than the first outer diameter includes: a pillar shaped-main body having a main body central shaft; a through-hole formed using the main body central shaft as a central shaft on the main body and having an inlet as a second pipe side opening in an installation state and an outlet as a first pipe side opening in an installation state, wherein in the through-hole, a pressing portion that applies a sealing pressure to the insertion coupling portion is formed in a portion of an inner wall, and an inner diameter of the pressing portion is smaller than the second outer diameter.
    Type: Application
    Filed: June 14, 2021
    Publication date: December 2, 2021
    Inventors: Chang Hwan Bae, Hyo Sang Lee
  • Patent number: 11000039
    Abstract: A method for controlling nematode includes treating a plant or soil with a composition comprising a grammicin compound of Formula 1 or an agriculturally acceptable salt thereof. The grammicin compound may be isolated from a Xylaria grammica strain so that it is harmless to a human body, does not cause any environmental contamination, and exhibits an excellent control activity against root knot nematodes. Thus, it can be advantageously used for developing an environment-friendly natural nematicide and production of a high value-added organic agricultural product.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: May 11, 2021
    Assignees: INDUSTRY FOUNDATION OF CHONNAM NATIONAL UNIVERSITY, NATIONAL INSTITUTE OF BIOLOGICAL RESOURCES
    Inventors: Jin-Cheol Kim, Tae Yoon Kim, Ja Yeong Jang, Won-Jae Chi, Chang Hwan Bae, Joo Hong Yeo
  • Patent number: 10980242
    Abstract: Xylaria grammica EL 000614 strain has a nematicidal activity against root knot nematode. A method for controlling root knot nematode includes treating a crop, a crop seed, or a field for cultivation with a nematicidal microorganism formulation. The method has very little possibility of having a problem related to environmental contamination, and exhibits a high mortality and activity of inhibiting egg hatching for sweet potato root knot nematode (M. incognita). It is expected that the strain can be very advantageously used as an innovative biological control agent which enables prevention of problems associated with environmental contamination.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: April 20, 2021
    Assignees: INDUSTRY FOUNDATION OF CHONNAM NATIONAL UNIVERSITY, NATIONAL INSTITUTE OF BIOLOGICAL RESOURCES
    Inventors: Jin-Cheol Kim, Tae Yoon Kim, Ja Yeong Jang, Nan Hee Yu, Won-Jae Chi, Chang Hwan Bae, Joo Hong Yeo
  • Patent number: 10888663
    Abstract: Provided is a titanium filter for syringes and its manufacturing method, more particularly, a titanium filter for syringes which has an improved filtering power and high safety and its manufacturing method. The titanium filter for syringes comprises: a first body having a hollow hole formed on the inner side thereof; and a second body configured to extend in the longitudinal direction of the first body and to cover one side of the hollow hole, wherein the first body and the second body are composed of titanium powders.
    Type: Grant
    Filed: August 13, 2019
    Date of Patent: January 12, 2021
    Assignee: HANATECH CO., LTD.
    Inventors: Chang Hwan Bae, Gun Suk In, Hong Jin Kim, Kwon Ung Hwang
  • Publication number: 20200046903
    Abstract: Provided is a titanium filter for syringes and its manufacturing method, more particularly, a titanium filter for syringes which has an improved filtering power and high safety and its manufacturing method. The titanium filter for syringes comprises: a first body having a hollow hole formed on the inner side thereof; and a second body configured to extend in the longitudinal direction of the first body and to cover one side of the hollow hole, wherein the first body and the second body are composed of titanium powders.
    Type: Application
    Filed: August 13, 2019
    Publication date: February 13, 2020
    Inventors: Chang Hwan BAE, Gun Suk IN, Hong Jin KIM, Kwon Ung HWANG
  • Publication number: 20200022371
    Abstract: A method for controlling nematode includes treating a plant or soil with a composition comprising a grammicin compound of Formula 1 or an agriculturally acceptable salt thereof. The grammicin compound may be isolated from a Xylaria grammica strain so that it is harmless to a human body, does not cause any environmental contamination, and exhibits an excellent control activity against root knot nematodes. Thus, it can be advantageously used for developing an environment-friendly natural nematicide and production of a high value-added organic agricultural product.
    Type: Application
    Filed: September 27, 2017
    Publication date: January 23, 2020
    Inventors: Jin-Cheol KIM, Tae Yoon KIM, Ja Yeong JANG, Won-Jae CHI, Chang Hwan BAE, Joo Hong YEO
  • Publication number: 20190223449
    Abstract: Xylaria grammica EL 000614 strain has a nematicidal activity against root knot nematode. A method for controlling root knot nematode includes treating a crop, a crop seed, or a field for cultivation with a nematicidal microorganism formulation. The method has very little possibility of having a problem related to environmental contamination, and exhibits a high mortality and activity of inhibiting egg hatching for sweet potato root knot nematode (M. incognita). It is expected that the strain can be very advantageously used as an innovative biological control agent which enables prevention of problems associated with environmental contamination.
    Type: Application
    Filed: September 27, 2017
    Publication date: July 25, 2019
    Inventors: Jin-Cheol KIM, Tae Yoon KIM, Ja Yeong JANG, Nan Hee YU, Won-Jae CHI, Chang Hwan BAE, Joo Hong YEO
  • Publication number: 20180266597
    Abstract: A sealed sleeve installed at an insertion coupling portion in a state in which a first pipe and a second pipe are insertion coupled to each other in order to seal couple the first pipe having a first outer diameter and a first inner diameter and the second pipe having a second outer diameter and a second inner diameter larger than the first outer diameter includes: a pillar shaped-main body having a main body central shaft; a through-hole formed using the main body central shaft as a central shaft on the main body and having an inlet as a second pipe side opening in an installation state and an outlet as a first pipe side opening in an installation state, wherein in the through-hole, a pressing portion that applies a sealing pressure to the insertion coupling portion is formed in a portion of an inner wall, and an inner diameter of the pressing portion is smaller than the second outer diameter.
    Type: Application
    Filed: February 7, 2017
    Publication date: September 20, 2018
    Applicants: Hanatech Co., Ltd., Aim Tech Co., Ltd.
    Inventors: Chang Hwan Bae, Hyo Sang Lee