Patents by Inventor Sung-Eun Park

Sung-Eun 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: 11174401
    Abstract: The present invention relates to a UV-curable ink composition, a method for producing a bezel pattern of a display substrate using same, and a bezel pattern produced thereby, the UV-curable ink composition comprising a colorant, an epoxy resin, an oxetane resin, a photopolymerization initiator, and a surfactant comprising a polar functional group, wherein the content ratio of the epoxy resin to the oxetane resin is 1:0.5-1:6.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: November 16, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Sung-Eun Park, Yong-Sung Goo, Seung-A Back, Joon-Hyung Kim
  • Patent number: 11021622
    Abstract: Disclosed is an ink composition for a 3D printing supporter and a 3D printing production method using the same, in which the ink composition is usable for an inkjet 3D printer, has excellent jetting properties and is easily dissolved in water after curing so that a supporter can be easily removed. The ink composition for a 3D printing supporter comprises: an amine-containing monomer, a curing agent, and a water-soluble polymer having an amine-containing polymer.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: June 1, 2021
    Inventors: Mi-Kyoung Kim, Joon-Hyung Kim, Seung-A Back, Sung-Eun Park
  • Patent number: 10954404
    Abstract: The present invention relates to an ink composition for a 3D printing support, comprising an amine-containing monomer and a curing agent. According to the present invention, an ink composition for a 3D printing support, which retains an excellent jetting property, is well dissolved in water after being photo-cured to be easily removed, and has less curing contraction and excellent storage stability, can be provided.
    Type: Grant
    Filed: July 19, 2016
    Date of Patent: March 23, 2021
    Inventors: Mi-Kyoung Kim, Joon-Hyung Kim, Sung-Eun Park, Seung-A Back
  • Patent number: 10739515
    Abstract: A waveguide having a light-shielding film formed on a cut surface of an edge side of the planar waveguide, the light-shielding film having a thickness of 2 to 10 ?m and an optical density (OD) of 0.7 to 1.0 based on a light-shielding film thickness of 1.0 ?m, and a method for manufacturing the same.
    Type: Grant
    Filed: November 23, 2017
    Date of Patent: August 11, 2020
    Assignee: LG Chem, Ltd.
    Inventors: A-Reum Kim, Jae-Hyun Yoo, Sung-Eun Park, Joon-Hyung Kim
  • Patent number: 10739677
    Abstract: This invention relates to a photosensitive color ink composition for a bezel, including (A) a cationic polymerizable alicyclic epoxy monomer, (B) a cationic polymerizable aliphatic epoxy monomer, (C) an oxetane monomer, (D) a photopolymerization initiator, and (E) a colorant, and to a bezel pattern formed using the same.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: August 11, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Sung-Eun Park, Yong-Sung Goo, Seung-A Back, Joon-Hyung Kim
  • Patent number: 10698367
    Abstract: An electronic device is disclosed including a housing including an outer wall, an inner, and a first through hole formed in the inner space, an audio module located in the inner space, a support structure located in the inner space between the audio module and the first through hole and including a second through hole; and a waterproof structure located in the inner space between the support structure and the outer wall including a flexible gasket. The gasket may include an outer rim, a recess portion moveable between the first through hole and the second through hole, and a connection portion between the rim and the recess portion, including at least one opening around the recess portion, such that the opening and the second through-hole form a sound path between the audio module and the first through-hole in the absence of pressure from an external liquid.
    Type: Grant
    Filed: August 29, 2018
    Date of Patent: June 30, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung-Eun Park, Jong-Chun Wee, Wook-Jin Lee, Jae-Uk Ahn
  • Publication number: 20200131386
    Abstract: Disclosed is an ink composition for a 3D printing supporter and a 3D printing production method using the same, in which the ink composition is usable for an inkjet 3D printer, has excellent jetting properties and is easily dissolved in water after curing so that a supporter can be easily removed. The ink composition for a 3D printing supporter comprises: an amine-containing monomer, a curing agent, and a water-soluble polymer having an amine-containing polymer.
    Type: Application
    Filed: February 17, 2017
    Publication date: April 30, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Mi-Kyoung Kim, Joon-Hyung Kim, Seung-A Back, Sung-Eun Park
  • Patent number: 10528006
    Abstract: A wearable electronic device may include: a housing including a front plate, a rear plate, and a side member surrounding an inner space between the front plate and the rear plate, wherein the side member includes at least one portion including an external opening and an inner channel connecting between the inner space and the external opening: an insulating structure inserted into the inner channel; a conductive path partially embedded in the insulating structure, wherein the conductive path includes a first end exposed to the inner space and a second end exposed to the external opening; at least one printed circuit board positioned in the inner space and electrically connected to the first end of the conductive path; a display exposed through the front plate; and a band structure connected to the portion of the housing and configured to be mounted on a portion of a human body.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: January 7, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung-Eun Park, Jeong-Eun Kim, Chang-Seok Bae
  • Publication number: 20190285794
    Abstract: A waveguide having a light-shielding film formed on a cut surface of an edge side of the planar waveguide, the light-shielding film having a thickness of 2 to 10 ?m and an optical density (OD) of 0.7 to 1.0 based on a light-shielding film thickness of 1.0 ?m, and a method for manufacturing the same.
    Type: Application
    Filed: November 23, 2017
    Publication date: September 19, 2019
    Applicant: LG Chem, Ltd.
    Inventors: A-Reum Kim, Jae-Hyun Yoo, Sung-Eun Park, Joon-Hyung Kim
  • Patent number: 10414926
    Abstract: The present invention relates to a UV-curable ink composition, a method for producing a bezel pattern of a display substrate using same, and a bezel pattern produced thereby, the UV-curable ink composition comprising a colorant, an epoxy compound, an oxetane compound, a photopolymerization initiator, and an adhesion promoter, wherein the content ratio of the epoxy compound to the oxetane compound is 1:0.5-1:6, and an adhesion to a glass substrate after curing is 4B or higher according to the ASTM D3359 standard.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: September 17, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Sung-Eun Park, Yong-Sung Goo, Seung-A Back, Joon-Hyung Kim
  • Patent number: 10414925
    Abstract: The present invention relates to a UV-curable ink composition, a method for producing a bezel pattern of a display substrate using same, and a bezel pattern produced thereby, the UV-curable ink composition comprising a colorant, an epoxy compound, an oxetane compound, a photopolymerization initiator, and a surfactant comprising a polar functional group, wherein the content ratio of the epoxy compound to the oxetane compound is 1:0.5-1:6, an adhesion to a glass substrate after curing is 4B or higher according to the ASTM D3359 standard, a contact angle to the glass substrate is less than 10°, and an adhesion with a substrate coated with an adhesive layer after curing is 100-5,000 gf/25 mm.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: September 17, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Sung-Eun Park, Yong-Sung Goo, Seung-A Back, Joon-Hyung Kim
  • Patent number: 10358565
    Abstract: The present invention relates to a UV-curable ink composition, a method for producing a bezel pattern of a display substrate using same, and a bezel pattern produced thereby, the UV-curable ink composition comprising a colorant, an epoxy compound, an oxetane compound and a photopolymerization initiator, wherein the content ratio of the epoxy compound to the oxetane compound is 1:0.5-1:6.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: July 23, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Sung-Eun Park, Yong-Sung Goo, Seung-A Back, Joon-Hyung Kim
  • Patent number: 10259957
    Abstract: The present invention relates to a UV-curable ink composition, a method for producing a bezel pattern of a display substrate using same, and a bezel pattern produced thereby, the UV-curable ink composition comprising a colorant, an epoxy compound, an oxetane compound and a photopolymerization initiator, wherein a content ratio of the epoxy compound to the oxetane compound is 1:0.5 to 1:6 and the curing dose amount of the ultraviolet curable ink composition is 20 to 5,000 mJ/cm2.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: April 16, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Sung-Eun Park, Yong-Sung Goo, Seung-A Back, Joon-Hyung Kim
  • Publication number: 20190094809
    Abstract: A wearable electronic device may include: a housing including a front plate, a rear plate, and a side member surrounding an inner space between the front plate and the rear plate, wherein the side member includes at least one portion including an external opening and an inner channel connecting between the inner space and the external opening: an insulating structure inserted into the inner channel; a conductive path partially embedded in the insulating structure, wherein the conductive path includes a first end exposed to the inner space and a second end exposed to the external opening; at least one printed circuit board positioned in the inner space and electrically connected to the first end of the conductive path; a display exposed through the front plate; and a band structure connected to the portion of the housing and configured to be mounted on a portion of a human body.
    Type: Application
    Filed: September 24, 2018
    Publication date: March 28, 2019
    Inventors: Sung-Eun PARK, Jeong-Eun KIM, Chang-Seok BAE
  • Patent number: 10227498
    Abstract: The present invention relates to a UV-curable ink composition, a method for producing a bezel pattern of a display substrate using same, and a bezel pattern produced thereby, the UV-curable ink composition comprising a colorant, an epoxy compound, an oxetane compound and a photopolymerization initiator, wherein a content ratio of the epoxy compound to the oxetane compound is 1:0.5 to 1:6, a taper angle after being cured is 0° to 30°, and optical density (OD) value is 0.05 to 2.5 per a film thickness of 1.0 ?m.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: March 12, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Sung-Eun Park, Yong-Sung Goo, Seung-A Back, Joon-Hyung Kim
  • Publication number: 20190072903
    Abstract: An electronic device is disclosed including a housing including an outer wall, an inner, and a first through hole formed in the inner space, an audio module located in the inner space, a support structure located in the inner space between the audio module and the first through hole and including a second through hole; and a waterproof structure located in the inner space between the support structure and the outer wall including a flexible gasket. The gasket may include an outer rim, a recess portion moveable between the first through hole and the second through hole, and a connection portion between the rim and the recess portion, including at least one opening around the recess portion, such that the opening and the second through-hole form a sound path between the audio module and the first through-hole in the absence of pressure from an external liquid.
    Type: Application
    Filed: August 29, 2018
    Publication date: March 7, 2019
    Inventors: Sung-Eun PARK, Jong-Chun WEE, Wook-Jin LEE, Jae-Uk AHN
  • Publication number: 20180281293
    Abstract: The present invention relates to a method for forming a three-dimensional object; according to the present invention, when the three-dimensional object is manufactured by an inkjet method, a support can be removed without damage to a structure body such that the three-dimensional object can be simply and economically manufactured.
    Type: Application
    Filed: October 28, 2016
    Publication date: October 4, 2018
    Applicant: LG Chem, Ltd.
    Inventors: Mi-Kyoung Kim, Joon-Hyung Kim, Sung-Eun Park, Seung-A Back
  • Publication number: 20180215937
    Abstract: The present invention relates to an ink composition for a 3D printing support, comprising an amine-containing monomer and a curing agent. According to the present invention, an ink composition for a 3D printing support, which retains an excellent jetting property, is well dissolved in water after being photo-cured to be easily removed, and has less curing contraction and excellent storage stability, can be provided.
    Type: Application
    Filed: July 19, 2016
    Publication date: August 2, 2018
    Applicant: LG Chem, Ltd.
    Inventors: Mi-Kyoung Kim, Joon-Hyung Kim, Sung-Eun Park, Seung-A Back
  • Patent number: 9999149
    Abstract: An electronic device is provided. The electronic device includes a housing including a first surface facing in a first direction, a second surface facing in a second direction opposite to the first direction, and a side surface surrounding at least a part of a space between the first surface and the second surface, an opening formed on at least one of the first surface, the second surface, or the side surface, a first channel extended from the opening, a second channel connected to at least a part of the first channel and extended to an inner space of the housing, an audio mounted inside the housing and connected to the opening through the first channel, a first member inserted into the first channel, and a second member inserted into the second channel, for allowing and restricting introduction and discharge of air into and from the inner space of the housing.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: June 12, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung-Soo Jun, Sung-Eun Park, Chang-Ok Lim, Min-Woo Yoo
  • Publication number: 20180110148
    Abstract: An electronic device is provided. The electronic device includes a housing including a first surface facing in a first direction, a second surface facing in a second direction opposite to the first direction, and a side surface surrounding at least a part of a space between the first surface and the second surface, an opening formed on at least one of the first surface, the second surface, or the side surface, a first channel extended from the opening, a second channel connected to at least a part of the first channel and extended to an inner space of the housing, an audio mounted inside the housing and connected to the opening through the first channel, a first member inserted into the first channel, and a second member inserted into the second channel, for allowing and restricting introduction and discharge of air into and from the inner space of the housing.
    Type: Application
    Filed: February 24, 2017
    Publication date: April 19, 2018
    Inventors: Sung-Soo Jun, Sung-Eun Park, Chang-Ok Lim, Min-Woo Yoo