Patents by Inventor Sang Bum AHN

Sang Bum AHN 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: 11952477
    Abstract: A curable composition includes a curable resin and a magnetic body, wherein the magnetic body comprises magnetic particles and a surface treatment agent present on a surface of the magnetic particles. The curable composition has low viscosity, and fluidity, and capable of effectively cured without causing curing shrinkage or the like to form a cured product having desired physical properties.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: April 9, 2024
    Assignee: LG Chem, Ltd.
    Inventors: Sang Bum Ahn, Jin Kyu Lee
  • Patent number: 11872623
    Abstract: The present invention relates to a thermosetting composition and a method for curing the same, and provides a thermosetting composition capable of realizing uniform curing physical properties of a cured product.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: January 16, 2024
    Assignee: LG CHEM, LTD.
    Inventors: Sang Bum Ahn, Jin Kyu Lee
  • Publication number: 20230154658
    Abstract: A magnetic body, a curable composition comprising the same, and a method for manufacturing the same are disclosed herein. In some embodiments, a magnetic body includes magnetic particles, and a surface treatment agent bonded to the surface of the magnetic particles, wherein the magnetic particles comprise crystals having a size in a range of 10 nm to 40 nm, wherein the magnetic particles have an average particle diameter in a range of 20 nm to 300 nm, and wherein the magnetic particles have a particle diameter variation coefficient in a range of 5% to 30%. The magnetic body may have an excellent calorific value, and at the same time, may maintain the calorific value uniformly. In the magnetic body, the calorific value characteristics may be freely adjusted. The curable composition of the present application can be easily cured by using a magnetic body that satisfies all the characteristics.
    Type: Application
    Filed: October 8, 2020
    Publication date: May 18, 2023
    Applicant: LG Chem, Ltd.
    Inventors: Yeong Hwa Kim, Sang Bum Ahn, Woong Chan Jeong, Jin Kyu Lee
  • Patent number: 11549009
    Abstract: The present invention relates to a composition for 3D printing, a 3D printing method using the same, and a three-dimensional comprising the same, and provides a composition for 3D printing capable of realizing a three-dimensional shape having precision and excellent curing stability.
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: January 10, 2023
    Inventors: Sang Bum Ahn, Jin Kyu Lee, Hyeok Jeong
  • Patent number: 11499019
    Abstract: The present application relates to a curable composition. The present application provides a curable composition comprising an internal heat source for generating heat by application of an alternate-current magnetic field from the outside, together with a phthalonitrile compound and a curing agent therefor. The curable composition can precisely control the heat generated from the internal heat source according to the strength of the alternate-current magnetic field to precisely control curing conditions of the curable composition.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: November 15, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Jin Kyu Lee, Seung Hee Lee, Sang Woo Kim, Sang Bum Ahn
  • Patent number: 11472971
    Abstract: The present application relates to a resin composition for 3D printing, a 3D printing method using the same, and a three-dimensional shape comprising the same, and provides a resin composition which is capable of precisely forming a three-dimensional shape and implementing uniform curing properties of a three-dimensional shape.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: October 18, 2022
    Inventors: Sang Bum Ahn, Jong Min Shin, Jin Kyu Lee
  • Patent number: 11476019
    Abstract: The present application relates to a composition, a 3D printing method using the same, and a three-dimensional shape comprising the same, and provides a composition capable of embodying a precise formation of a three-dimensional shape using a ceramic material and a uniform curing property of the three-dimensional shape.
    Type: Grant
    Filed: December 7, 2020
    Date of Patent: October 18, 2022
    Inventors: Jin Kyu Lee, Sang Bum Ahn
  • Publication number: 20220289935
    Abstract: A cured object and a method for producing the same are disclosed herein. In some embodiments, the method of producing a cured object includes introducing a resin composition including a resin and magnetic powder into one or more slots of a tubular object, wherein the resin composition includes a resin and a magnetic powder, wherein the tubular object includes a penetration space and an edge region having the one more slots formed therein, and wherein the penetration space and the one or more slots are formed in a longitudinal direction of the tubular object; inserting a solenoid coil into the penetration space of the tubular object; and generating a magnetic field with the solenoid coil to cure the resin present in the one or more slots of the tubular object. The cured resin object can also have excellent withstand voltage characteristics.
    Type: Application
    Filed: July 10, 2020
    Publication date: September 15, 2022
    Applicant: LG Chem, Ltd.
    Inventors: Sang Bum Ahn, Jin Kyu Lee, Kwang Hwan Kim
  • Patent number: 11232891
    Abstract: The present application relates to a composition for 3D printing, a 3D printing method using the same, and a three-dimensional shape comprising the same, and provides an ink composition capable of realizing precise formation of a three-dimensional shape and uniform curing physical properties of the three-dimensional shape.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: January 25, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Sai Bom Park, Jin Kyu Lee, Sang Bum Ahn
  • Patent number: 11203152
    Abstract: A nozzle assembly comprising a housing, a nozzle disposed in the housing and connected to an ink supply part, a first coil, which is disposed in the housing, for generating a magnetic field when a power source is applied, a second coil disposed in the housing, disposed so as to surround the nozzle and the first coil and generating a magnetic field when a power source is applied, provided that at least one of the magnetic field effective area and the magnetic field intensity is different from that of the first coil, and a lift part for lifting the nozzle and the first and second coils, respectively, so as to be positioned in the housing or exposed to the outside of the housing.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: December 21, 2021
    Inventors: Choong Man Bae, Sang Bum Ahn, Jin Kyu Lee
  • Publication number: 20210098160
    Abstract: The present application relates to a composition, a 3D printing method using the same, and a three-dimensional shape comprising the same, and provides a composition capable of embodying a precise formation of a three-dimensional shape using a ceramic material and a uniform curing property of the three-dimensional shape.
    Type: Application
    Filed: December 7, 2020
    Publication date: April 1, 2021
    Applicant: LG Chem, Ltd.
    Inventors: Jin Kyu Lee, Sang Bum Ahn
  • Publication number: 20210032433
    Abstract: A curable composition includes a curable resin and a magnetic body, wherein the magnetic body comprises magnetic particles and a surface treatment agent present on a surface of the magnetic particles. The curable composition has low viscosity, and fluidity, and capable of effectively cured without causing curing shrinkage or the like to form a cured product having desired physical properties.
    Type: Application
    Filed: February 7, 2019
    Publication date: February 4, 2021
    Applicant: LG Chem, Ltd.
    Inventors: Sang Bum Ahn, Jin Kyu Lee
  • Patent number: 10892075
    Abstract: The present application relates to a composition for 3D printing, a 3D printing method using the same, and a three-dimensional shape comprising the same, and provides a composition for 3D printing capable of embodying a precise formation of a three-dimensional shape using a ceramic material and a uniform curing property of the three-dimensional shape.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: January 12, 2021
    Inventors: Jin Kyu Lee, Sang Bum Ahn
  • Publication number: 20200325286
    Abstract: The present application relates to a curable composition. The present application provides a curable composition comprising an internal heat source for generating heat by application of an alternate-current magnetic field from the outside, together with a phthalonitrile compound and a curing agent therefor. The curable composition can precisely control the heat generated from the internal heat source according to the strength of the alternate-current magnetic field to precisely control curing conditions of the curable composition.
    Type: Application
    Filed: November 29, 2017
    Publication date: October 15, 2020
    Inventors: Jin Kyu LEE, Seung Hee LEE, Sang Woo KIM, Sang Bum AHN
  • Publication number: 20200262999
    Abstract: The present invention relates to a thermosetting composition and a method for curing the same, and provides a thermosetting composition capable of realizing uniform curing physical properties of a cured product.
    Type: Application
    Filed: November 6, 2017
    Publication date: August 20, 2020
    Inventors: Sang Bum AHN, Jin Kyu LEE
  • Publication number: 20200130272
    Abstract: A nozzle assembly comprising a housing, a nozzle disposed in the housing and connected to an ink supply part, a first coil, which is disposed in the housing, for generating a magnetic field when a power source is applied, a second coil disposed in the housing, disposed so as to surround the nozzle and the first coil and generating a magnetic field when a power source is applied, provided that at least one of the magnetic field effective area and the magnetic field intensity is different from that of the first coil, and a lift part for lifting the nozzle and the first and second coils, respectively, so as to be positioned in the housing or exposed to the outside of the housing.
    Type: Application
    Filed: April 25, 2018
    Publication date: April 30, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Choong Man Bae, Sang Bum Ahn, Jin Kyu Lee
  • Publication number: 20190318857
    Abstract: The present application relates to a composition for 3D printing, a 3D printing method using the same, and a three-dimensional shape comprising the same, and provides an ink composition capable of realizing precise formation of a three-dimensional shape and uniform curing physical properties of the three-dimensional shape.
    Type: Application
    Filed: November 21, 2017
    Publication date: October 17, 2019
    Inventors: Sai Bom PARK, Jin Kyu LEE, Sang Bum AHN
  • Publication number: 20190040248
    Abstract: The present invention relates to a composition for 3D printing, a 3D printing method using the same, and a three-dimensional comprising the same, and provides a composition for 3D printing capable of realizing a three-dimensional shape having precision and excellent curing stability.
    Type: Application
    Filed: December 27, 2016
    Publication date: February 7, 2019
    Applicant: LG Chem, Ltd.
    Inventors: Sang Bum Ahn, Jin Kyu Lee, Hyeok Jeong
  • Publication number: 20180273776
    Abstract: The present application relates to a resin composition for 3D printing, a 3D printing method using the same, and a three-dimensional shape comprising the same, and provides a resin composition which is capable of precisely forming a three-dimensional shape and implementing uniform curing properties of a three-dimensional shape.
    Type: Application
    Filed: September 26, 2016
    Publication date: September 27, 2018
    Applicant: LG Chem, Ltd.
    Inventors: Sang Bum Ahn, Jong Min Shin, Jin Kyu Lee
  • Publication number: 20180261363
    Abstract: The present application relates to a composition for 3D printing, a 3D printing method using the same, and a three-dimensional shape comprising the same, and provides a composition for 3D printing capable of embodying a precise formation of a three-dimensional shape using a ceramic material and a uniform curing property of the three-dimensional shape.
    Type: Application
    Filed: September 26, 2016
    Publication date: September 13, 2018
    Applicant: LG Chem, Ltd.
    Inventors: Jin Kyu Lee, Sang Bum Ahn