Patents by Inventor Geun Hwang

Geun 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).

  • Patent number: 11975500
    Abstract: Provided is a method for manufacturing a polarizing plate, comprising a step of irradiating an optical laminate with ultraviolet rays having an emission wavelength band of 380 nm to 410 nm. The optical laminate sequentially comprises a first base film, a first adhesive layer, a linear polarizer, a second adhesive layer, a second base film and a reverse dispersion liquid crystal layer. The first adhesive layer and the second adhesive layer each comprise a photosensitizer for initiating a curing reaction in a wavelength band of 350 nm to 410 nm, and the ultraviolet rays are irradiated on the first base film side of the optical laminate.
    Type: Grant
    Filed: February 11, 2020
    Date of Patent: May 7, 2024
    Assignee: LG Chem, Ltd.
    Inventors: Young Sik Kim, Jin Yong Park, Yeon Ok Jung, Min Woo Hwang, Jung Geun Kwon, Yong Su Ju, Chan Youn Kim, Ji Hoon Park, Seong Min Lim
  • Patent number: 11939505
    Abstract: Provided are a silicon nitride film etching composition, a method of etching a silicon nitride film using the same, and a manufacturing method of a semiconductor device. Specifically, a silicon nitride film may be stably etched with a high selection ratio relative to a silicon oxide film, and when the composition is applied to an etching process at a high temperature and a semiconductor manufacturing process, not only no precipitate occurs but also anomalous growth in which the thickness of the silicon oxide film is rather increased does not occur, thereby minimizing defects and reliability reduction.
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: March 26, 2024
    Assignee: ENF Technology Co., Ltd.
    Inventors: Dong Hyun Kim, Hyeon Woo Park, Sung Jun Hong, Myung Ho Lee, Myung Geun Song, Hoon Sik Kim, Jae Jung Ko, Myong Euy Lee, Jun Hyeok Hwang
  • Publication number: 20240067668
    Abstract: The present invention relates to a heteroaryl derivative compound and a use thereof. Since the heteroaryl derivative of the present invention exhibits excellent inhibitory activity against EGFR, the heteroaryl derivative can be usefully used as a therapeutic agent for EGFR-associated diseases.
    Type: Application
    Filed: December 29, 2021
    Publication date: February 29, 2024
    Inventors: Yi Kyung Ko, Ah Reum Han, Jin Hee Park, Yeong Deok Lee, Hye Rim Im, Kyun Eun Kim, Dong Keun Hwang, Su Been Nam, Myung Hoe Heo, Se Rin Cho, Eun Hwa Ko, Sung Hwan Kim, Hwan Geun Choi
  • Patent number: 11874203
    Abstract: A Raman spectroscopy apparatus using a nano printing device is provided to perform Raman spectroscopy on nanoscale nanostructures printed from the nano printing device. The Raman spectroscopy apparatus includes a laser light source configured to generate and emit a laser light to the nanostructures, and a Raman detector configured to collect spectroscopic information from the light scattered by the nanostructures.
    Type: Grant
    Filed: January 21, 2020
    Date of Patent: January 16, 2024
    Assignee: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Won Ho Jhe, Sang Min An, Chung Man Kim, Jong Geun Hwang
  • Publication number: 20220120691
    Abstract: A Raman spectroscopy apparatus using a nano printing device is provided to perform Raman spectroscopy on nanoscale nanostructures printed from the nano printing device. The Raman spectroscopy apparatus includes a laser light source configured to generate and emit a laser light to the nanostructures, and a Raman detector configured to collect spectroscopic information from the light scattered by the nanostructures.
    Type: Application
    Filed: January 21, 2020
    Publication date: April 21, 2022
    Inventors: Won Ho JHE, Sang Min AN, Chung Man KIM, Jong Geun HWANG
  • Patent number: 11187568
    Abstract: The present invention provides a curb for measuring the flood depth in an urban area, more particularly, to a curb for measuring the flood depth in an urban area, which is configured to demarcate the boundary between a vehicular roadway and a pedestrian sidewalk to measure the flood depth so that the flood depth in the urban area can be measured without the necessity for additional installation of a separate structure. In particular, the present invention has an effect in that an air contact type water level gauge is installed in a first space of a main body to measure the flood depth, i.e., the level of flooding water based on the internal air pressure of a cylindrical tube so that a pressure sensor is not brought into close contact with the flooding water to prevent corrosion of the pressure sensor, thereby reducing the maintenance and repair costs.
    Type: Grant
    Filed: November 7, 2018
    Date of Patent: November 30, 2021
    Assignee: THE REPUBLIC OF KOREA (NATIONAL DISASTER MANAGEMENT RESEARCH INSTITUTE)
    Inventors: Han Seung Lee, Jae Seung Joo, Jae Woong Cho, Chang Won Choi, Ho Seon Kang, Chang Yeon Bae, Jeong Geun Hwang
  • Publication number: 20210255022
    Abstract: The present invention provides a curb for measuring the flood depth in an urban area, more particularly, to a curb for measuring the flood depth in an urban area, which is configured to demarcate the boundary between a vehicular roadway and a pedestrian sidewalk to measure the flood depth so that the flood depth in the urban area can be measured without the necessity for additional installation of a separate structure. In particular, the present invention has an effect in that an air contact type water level gauge is installed in a first space of a main body to measure the flood depth, i.e., the level of flooding water based on the internal air pressure of a cylindrical tube so that a pressure sensor is not brought into close contact with the flooding water to prevent corrosion of the pressure sensor, thereby reducing the maintenance and repair costs.
    Type: Application
    Filed: November 7, 2018
    Publication date: August 19, 2021
    Inventors: Han Seung LEE, Jae Seung JOO, Jae Woong CHO, Chang Won CHOI, Ho Seon KANG, Chang Yeon BAE, Jeong Geun HWANG
  • Publication number: 20210048122
    Abstract: The present relates a reinforcing method in which a duct reinforcement member of straight slat type is applied to a duct having a rectangular cross section whose transverse sides and longitudinal sides have changeable lengths, four bars each including a bottom open equilateral trapezoidal cross-sectional portion integrally formed with a pair of flat sheet portions extended in opposite directions under a pair of hypotenuses of the equilateral trapezoidal cross-sectional portion are bonded to four outer walls of the duct, and a curved angle coupler in contact with ends of the two bars adjacent to each other at the four corners of the duct is bonded to a pair of flat sheet portions near the ends of the two bars.
    Type: Application
    Filed: November 2, 2020
    Publication date: February 18, 2021
    Applicants: SAMIL CO.,LTD., CATSMRO CO., LTD.
    Inventor: Sang-geun HWANG
  • Patent number: 9005583
    Abstract: There is provided a novel chain-end functionalized PEO of formulas (I) to (IV) prepared via living anionic polymerization and chain-end functionalization, as well as a simple method of preparing nano-sized transition metal or metal salt particles using the same, which can be readily stabilized even in an aqueous medium. The water-soluble PEO-based polymers having various functional groups (including a drug group such as vitamin and anti-cancer agent) and the process of preparing nano-sized transition metal or metal salt particles using the same can be advantageously used in the development of new materials for drug delivering system and imaging, e.g., a contrast agent and an anti-cancer agent simultaneously.
    Type: Grant
    Filed: July 6, 2006
    Date of Patent: April 14, 2015
    Assignee: Youl Chon Chemical Co., Ltd.
    Inventors: Jungahn Kim, Kwang Ung Kim, Seung Sang Hwang, Soon Man Hong, Soonjong Kwak, Joon Hyeong Park, Ji Hee Kim, Dong Youn Shin, Soon Geun Hwang, Jang Seop Kim, Han Wook Ryu
  • Patent number: 8897837
    Abstract: An integral communication device and method for controlling the integral communication device are provided for expanding the communication capability of a mobile terminal. An integral communication device of the present invention includes a plurality of communication modules that operate with different communication standards, a connector having terminals for electrical connection to a mobile terminal, a switch for switching the terminals of the connector between the communication modules, and a device controller for controlling the switch to establish electric links to the communication modules individually.
    Type: Grant
    Filed: October 27, 2008
    Date of Patent: November 25, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hak Hoon Song, Sang Geun Hwang, Kyeong Jun Kim, Jeng Nam Lee
  • Publication number: 20090142268
    Abstract: There is provided a novel chain-end functionalized PEO of formulas (I) to (IV) prepared via living anionic polymerization and chain-end functionalization, as well as a simple method of preparing nano-sized transition metal or metal salt particles using the same, which can be readily stabilized even in an aqueous medium. The water-soluble PEO-based polymers having various functional groups (including a drug group such as vitamin and anti-cancer agent) and the process of preparing nano-sized transition metal or metal salt particles using the same can be advantageously used in the development of new materials for drug delivering system and imaging, e.g., a contrast agent and an anti-cancer agent simultaneously.
    Type: Application
    Filed: July 6, 2006
    Publication date: June 4, 2009
    Applicant: Youl Chon Chemical Co., Ltd.
    Inventors: Jungahn Kim, Kwang Ung Kim, Seung Sang Hwang, Soon Man Hong, Soonjong Kwak, Joon Hyeong Park, Ji Hee Kim, Dong Youn Shin, Soon Geun Hwang, Jang Seop Kim, Han Wook Ryu
  • Publication number: 20090124288
    Abstract: An integral communication device and method for controlling the integral communication device are provided for expanding the communication capability of a mobile terminal. An integral communication device of the present invention includes a plurality of communication modules that operate with different communication standards, a connector having terminals for electrical connection to a mobile terminal, a switch for switching the terminals of the connector between the communication modules, and a device controller for controlling the switch to establish electric links to the communication modules individually.
    Type: Application
    Filed: October 27, 2008
    Publication date: May 14, 2009
    Applicant: Samsung Electronics Co. Ltd.
    Inventors: Hak Hoon SONG, Sang Geun HWANG, Kyeong Jun KIM, Jeng Nam LEE
  • Publication number: 20090042538
    Abstract: Disclosed is a method for controlling billing in a Session Initiation Protocol (SIP) call server The method includes the steps of: receiving an invite message from a calling SIP terminal; transmitting a (100) trying message to the calling SIP terminal, the (100) trying message including transmission period information of a keep-alive message; establishing an SIP call between the calling SIP terminal and a called SIP terminal, and receiving the keep-alive message from the calling SIP terminal in the transmission period, the keep-alive message including billing information; and when the SIP call is terminated, transmitting final billing information received from the calling SIP terminal to a billing server.
    Type: Application
    Filed: April 12, 2007
    Publication date: February 12, 2009
    Inventors: Hyeon Cheol Cho, Sang Geun Hwang, Chang Wook Lee, Il Hyung Rhee
  • Patent number: 7483111
    Abstract: An apparatus for fabricating a liquid crystal display panel includes a chamber for holding a substrate, wherein the substrate includes first and second metal patterns, a spray nozzle connected to the chamber for spraying spacers onto the substrate, wherein the spacers are charged with a predetermined polarity, and a first power supplier connected to the chamber for applying a first voltage with a positive polarity and a second voltage with a negative polarity to the first and second metal patterns of the substrate.
    Type: Grant
    Filed: January 24, 2005
    Date of Patent: January 27, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: Seong Ho Kim, Woo Sup Shin, Hak Jun Lee, Yeong Geun Hwang, Tae Man Kim
  • Publication number: 20080169334
    Abstract: Disclosed is a copper plating solid wire for MAG welding with excellent arc stability during welding, in which the solid wire for MAG welding is manufactured by high-speed copper plating by being immersed in a copper plating solution to make a plating layer of 0.2-1.0 ?m in thickness, and the plating layer comprises 100-1000 ppm of Fe, an alkali metal (Na), and alkaline earth metals (Mg, Ca) in total wherein the content of the alkali metal (Na) and the alkaline earth metals (Mg, Ca) ranges from 10 ppm to 500 ppm. According to the present invention, the copper plating solid wire for MAG welding with excellent feedability and arc stability during welding can be obtained despite the high-speed plating process.
    Type: Application
    Filed: March 23, 2006
    Publication date: July 17, 2008
    Inventor: Hu Geun HWANG
  • Patent number: 7319127
    Abstract: Disclosed are nano-sized metals and metal salts stabilized by using semi-telechelic and telechelic polymers prepared through living anionic polymerization, and their synthetic methods, and a nanostructure wherein the nano-sized particles are self-assembled by mixing block copolymers and film-casting. The present invention provides a new method for preparing nano-sized particles capable of easily accomplishing nanostructure by merely mixing, especially with block copolymers, and having excellent stability.
    Type: Grant
    Filed: October 23, 2002
    Date of Patent: January 15, 2008
    Assignees: Korea Institute of Science and Technology
    Inventors: Jungahn Kim, Kwang Ung Kim, Seung Sang Hwang, Dong-Youn Shin, Jang Seop Kim, Soon-Geun Hwang, Keon Hyeong Kim
  • Patent number: 7292306
    Abstract: A method for forming an LCD device, a sealant dispensing apparatus and an LCD device manufactured by the sealant dispensing apparatus. The method includes preparing lower and upper substrates; dispensing liquid crystal on any one of the lower and upper substrates; forming a main sealant having no inlet on any one of the lower and upper substrates; forming an auxiliary sealant in the periphery of the main sealant on any one of the lower and upper substrates; and bonding the lower and upper substrates to each other; wherein the main and auxiliary sealants are formed at the same time. The sealant dispensing apparatus includes a syringe having main and auxiliary nozzles for discharging sealant. The auxiliary nozzle rotates revolves around the main nozzle. The spacing between the main nozzle and the auxiliary nozzle may be controlled to control the interval between the auxiliary and the main sealants.
    Type: Grant
    Filed: December 30, 2005
    Date of Patent: November 6, 2007
    Assignee: LG.Philips LCD Co., Ltd.
    Inventor: Yeong Geun Hwang
  • Patent number: 7211335
    Abstract: A red organic light-emitting compound which has a superior heat-resistance and is capable of adjusting the color of the emitted light, and an organic light-emitting device including the same are disclosed.
    Type: Grant
    Filed: March 19, 2003
    Date of Patent: May 1, 2007
    Assignee: Neoviewkolon Co., Ltd.
    Inventors: Ha-Geun Hwang, Ki-Seok Kim
  • Patent number: 7158204
    Abstract: A method and an apparatus that can fabricate a liquid crystal display panel capable of selectively forming a spacer at a desired area. The inventive apparatus includes a sprayer to spray adhesive spacers over a substrate having at least one metal pattern, a dryer to dry the adhesive spacers, and a blower to selectively remove the adhesive spacers located at a region non-overlapping the metal pattern.
    Type: Grant
    Filed: August 27, 2004
    Date of Patent: January 2, 2007
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Seong Ho Kim, Woo Sup Shin, Yeong Geun Hwang, Tae Man Kim
  • Publication number: 20060266800
    Abstract: Disclosed is a copper plating solid wire for MAG welding with excellent arc stability during welding, in which the solid wire for MAG welding is manufactured by high-speed copper plating by being immersed in a copper plating solution to make a plating layer of 0.2-1.0 ?m in thickness, and the plating layer comprises 100-1000 ppm of Fe, an alkali metal (Na), and alkaline earth metals (Mg, Ca) in total wherein the content of the alkali metal (Na) and the alkaline earth metals (Mg, Ca) ranges from 10 ppm to 500 ppm. According to the present invention, the copper plating solid wire for MAG welding with excellent feedability and arc stability during welding can be obtained despite the high-speed plating process.
    Type: Application
    Filed: March 23, 2006
    Publication date: November 30, 2006
    Inventor: Hu Geun HWANG