Patents by Inventor GUN-A HWANG

GUN-A HWANG 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: 20240156697
    Abstract: An inorganic composite pigment capable of elevating ultraviolet (UV) protection, and a cosmetic composition including the same, in which the inorganic composite pigment includes a core part including a white pigment; and a surface coating material, which is coated on the surface of an external part of the core part, including an inorganic solution that includes the white pigment. Additionally, the white pigment is at least one kind selected from the group consisting of titanium dioxide, zinc oxide, cerium oxide, silica, talc, mica, and borosilicate. The inorganic composite pigment according to the present disclosure capable of elevating a UV protection undergoes surface modification of the pigment through a process of re-coating a white pigment on a white pigment with a high refractive index, thereby elevating the UV protection.
    Type: Application
    Filed: April 7, 2022
    Publication date: May 16, 2024
    Applicant: COSMECCA KOREA CO., LTD.
    Inventors: Hyun Dae CHO, Jong Gun KIM, Jun Pil HWANG, Min Jeung KWON, Se Beom CHOI, A Young PARK, Jae Kyung YU, Ye Seul LEE
  • Publication number: 20240116184
    Abstract: An automated gas supply system includes a gas cylinder transfer unit configured to transfer a cradle in which one or more gas cylinders storing a gas therein are stored; a gas cylinder inspection unit configured to check properties of the gas stored in the gas cylinder transferred from the gas cylinder transfer unit and check whether the gas leaks from the gas cylinder; a storage queue configured to receive the gas cylinder from the gas cylinder inspection unit by a mobile robot and configured to classify and store the transferred gas cylinders according to the properties of the gas stored in the gas cylinder; and a gas cabinet configured to receive the gas cylinder from the storage queue by the mobile robot and fasten a gas pipe, which is connected to a semiconductor manufacturing process line, to a gas spray nozzle, which is disposed at one side of the received gas cylinder, to supply the gas stored in the gas cylinder to the semiconductor manufacturing process line, wherein the gas cabinet includes a resid
    Type: Application
    Filed: December 20, 2023
    Publication date: April 11, 2024
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Min Sung HA, Kwang-Jun KIM, Jong Kyu KIM, Hyun-Joong KIM, Jin Ho SO, Chi-Gun AN, Ki Moon LEE, Hui Gwan LEE, Beom Soo HWANG
  • Publication number: 20240122053
    Abstract: Provided are display panel manufacturing method and apparatus. The display panel manufacturing method includes detecting a machining target area of a bottom layer, removing an area, overlapping the machining target area, of a top layer, emitting a laser beam to the machining target area of the bottom layer to provide a bottom pattern from the machining target area, and providing a compensation pattern in the removed area of the top layer.
    Type: Application
    Filed: October 10, 2023
    Publication date: April 11, 2024
    Inventors: SUNGJUN KIM, WOO HYUK KWON, JAE MYOUN DO, BONG HO SUL, SEUNG NOH LEE, GYEOM UK KIM, YOUNG-BAE KIM, YOUNG-JUN YUN, KYUNGCHEOL LEE, KYUNGSEOK HEO, GUN-A HWANG, MINHO HWANG
  • Patent number: 11912916
    Abstract: The present disclosure relates to an organic electroluminescent compound represented by formula 1 and an organic electroluminescent device comprising the same. By comprising the organic electroluminescent compound of the present disclosure, it is possible to provide an organic electroluminescent device having lower operating voltage, higher luminous efficiency and/or longer lifespan properties as compared with a conventional organic electroluminescent device.
    Type: Grant
    Filed: July 1, 2019
    Date of Patent: February 27, 2024
    Assignee: Rohm and Haas Electronic Materials Korea Ltd.
    Inventors: Hyun Kim, Ji-Song Jun, Jeong-Hwan Jeon, Yeon-Gun Lee, Seon-Jin Hwang, Young-Jun Cho
  • Patent number: 9478448
    Abstract: Disclosed is a thermal treatment system which enables a uniform temperature distribution and a uniform concentration distribution of reaction gas in an entire reaction space for a thermal treatment process, a method of performing a thermal treatment, and a method of manufacturing a CIGS solar cell using the same, wherein the thermal treatment system may include a reaction chamber with a reaction space, an external chamber surrounding the reaction chamber, a door chamber provided to open or close the reaction space of the reaction chamber, and an air flow adjusting apparatus for circulation of an flow inside the reaction space of the reaction chamber, wherein the air flow adjusting apparatus includes a driving axis, an air flow suction unit connected with the driving axis, and an air flow discharging unit connected with the air flow suction unit.
    Type: Grant
    Filed: April 1, 2014
    Date of Patent: October 25, 2016
    Assignee: Avaco Co., Ltd.
    Inventors: Jin Yeong Do, Hee Chul Yang, Suk Jin Kim, Jong Youb Jung, Bong Cheol Kim, Seok Jin Lee, Ki Young Jung, Jin U Seo, Sung Hwan Paeng, Deok Woo Han, Jae Gun Hwang, Min Hwan Kang, In Ha Lee
  • Publication number: 20150340256
    Abstract: Disclosed is a thermal treatment system which enables a uniform temperature distribution and a uniform concentration distribution of reaction gas in an entire reaction space for a thermal treatment process, a method of performing a thermal treatment, and a method of manufacturing a CIGS solar cell using the same, wherein the thermal treatment system may include a reaction chamber with a reaction space, an external chamber surrounding the reaction chamber, a door chamber provided to open or close the reaction space of the reaction chamber, and an air flow adjusting apparatus for circulation of an flow inside the reaction space of the reaction chamber, wherein the air flow adjusting apparatus includes a driving axis, an air flow suction unit connected with the driving axis, and an air flow discharging unit connected with the air flow suction unit.
    Type: Application
    Filed: April 1, 2014
    Publication date: November 26, 2015
    Inventors: Jin Yeong DO, Hee Chul YANG, Suk Jin KIM, Jong Youb JUNG, Bong Cheol KIM, Seok Jin LEE, Ki Young JUNG, Jin U SEO, Sung Hwan PAENG, Deok Woo HAN, Jae Gun HWANG, Min Hwan KANG, In Ha LEE
  • Patent number: 8999797
    Abstract: A method for fabricating a semiconductor device includes forming a plurality of bit line structures over a substrate, forming contact holes between the bit line structures, forming sacrificial spacers on sidewalls of the contact holes, forming first plugs recessed inside the contact holes, forming air gaps by removing the sacrificial spacers, forming conductive capping layers capping the first plugs and the air gaps, and forming second plugs over the conductive capping layers.
    Type: Grant
    Filed: August 7, 2014
    Date of Patent: April 7, 2015
    Assignee: SK Hynix Inc.
    Inventors: Yong-Soo Joung, Hyung-Kyun Kim, Jae-Soo Kim, Dong-Gun Hwang, Kyoung Yoo
  • Publication number: 20140357076
    Abstract: A method for fabricating a semiconductor device includes forming a plurality of bit line structures over a substrate, forming contact holes between the bit line structures, forming sacrificial spacers on sidewalls of the contact holes, forming first plugs recessed inside the contact holes, forming air gaps by removing the sacrificial spacers, forming conductive capping layers capping the first plugs and the air gaps, and forming second plugs over the conductive capping layers.
    Type: Application
    Filed: August 7, 2014
    Publication date: December 4, 2014
    Inventors: Yong-Soo JOUNG, Hyung-Kyun KIM, Jae-Soo KIM, Dong-Gun HWANG, Kyoung YOO
  • Patent number: 8828829
    Abstract: A method for fabricating a semiconductor device includes forming a plurality of bit line structures over a substrate, forming contact holes between the bit line structures, forming sacrificial spacers on sidewalls of the contact holes, forming first plugs recessed inside the contact holes, forming air gaps by removing the sacrificial spacers, forming conductive capping layers capping the first plugs and the air gaps, and forming second plugs over the conductive capping layers.
    Type: Grant
    Filed: March 16, 2013
    Date of Patent: September 9, 2014
    Assignee: SK Hynix Inc.
    Inventors: Yong-Soo Joung, Hyung-Kyun Kim, Jae-Soo Kim, Dong-Gun Hwang, Kyoung Yoo
  • Publication number: 20140179102
    Abstract: A method for fabricating a semiconductor device includes forming a plurality of bit line structures over a substrate, forming contact holes between the bit line structures, forming sacrificial spacers on sidewalls of the contact holes, forming first plugs recessed inside the contact holes, forming air gaps by removing the sacrificial spacers, forming conductive capping layers capping the first plugs and the air gaps, and forming second plugs over the conductive capping layers.
    Type: Application
    Filed: March 16, 2013
    Publication date: June 26, 2014
    Applicant: SK hynix Inc.
    Inventors: Yong-Soo JOUNG, Hyung-Kyun KIM, Jae-Soo KIM, Dong-Gun HWANG, Kyoung YOO
  • Patent number: 6174945
    Abstract: The present invention relates to halogen-free flameproof thermopolastic molding compounds which comprise an aromatic polycarbonate, a styrene-containing copolymer, a styrene-containing graft polymer, a phosphorus compound, a silicon compound, and a tetrafluoroethylene polymer. It has been found that the use of a specific type of silicon compound leads to a polymer mixture having improved stress crack resistance and impact properties. The silicon compound is represented as the following Formula (I). in which n and m have a value of from 5 to 8, and x and y have a value of from 1 to 5.
    Type: Grant
    Filed: June 18, 1999
    Date of Patent: January 16, 2001
    Assignee: LG Chemical Ltd.
    Inventors: Yong-Se Kim, Duk-Gun Hwang, Hong-Jang Kim, Kwang-Jae Lee, Jong-Gu Kum