Patents by Inventor Kyoung Hwan An

Kyoung Hwan An 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: 20230202891
    Abstract: Disclosed are a wastewater filtering method and apparatus comprising filter media of different sizes. According to one aspect of the present embodiment, provided a wastewater filtering method and apparatus capable of stable and efficient operation by minimizing the head loss as well as simultaneously removing organic matter and solids in a large flow of wastewater.
    Type: Application
    Filed: March 23, 2021
    Publication date: June 29, 2023
    Inventors: Dae Hwan RHU, Bong Choel CHOI, Chun Woo LEE, Yong Joon YUNE, Jong Goo KIM, Byung Suk LEE, Kyoung Hwan SUNG
  • Patent number: 11680153
    Abstract: The present invention relates to a rubber composition having excellent tensile properties and viscoelasticity properties and including a conjugated diene-based polymer. The rubber composition may include a modified conjugated diene-based polymer which is selected considering target tensile properties and viscoelasticity properties, by predicting in advance the correlation between the modification ratio of the modified conjugated diene-based polymer and the dynamic viscoelasticity loss coefficient at 60° C. of the rubber composition through Mathematical Formula 1 and Mathematical Formula 2. Therefore, excellent compounding properties may be shown.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: June 20, 2023
    Inventors: Suk Youn Kang, Jin Sook Ryu, Kyoung Hwan Oh, Jeong Heon Ahn
  • Publication number: 20230174102
    Abstract: Disclosed herein high definition map abnormality inference and corresponding driving method, device and mobility apparatus. The method includes: determining an abnormality of a high definition map applied to a mobility apparatus based on at least one of road information or surrounding object information recognized in driving of the mobility apparatus; determining whether exceptional object information recognized on a road is present; determining a road condition to be a temporary change situation and determining a first driving control process of the mobility apparatus corresponding to the temporary change situation, when the abnormality of the high definition map and exceptional object information are present; and determining the road condition to be a permanent change situation and determining a second driving control process corresponding to the permanent change situation, when the abnormality of the high definition map is present and the exceptional object information is not present.
    Type: Application
    Filed: November 10, 2022
    Publication date: June 8, 2023
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventor: Kyoung Hwan AN
  • Publication number: 20230176684
    Abstract: A display device includes a pixel unit including a sensing region where pixels are disposed at a first pixels per inch (PPI) and a display region where pixels are disposed at a second PPI; a touch sensor unit disposed on the pixel unit, and including a first touch sensor region where touch sensors are disposed at a first electrode density and a second touch sensor region where touch sensors are disposed at a second electrode density higher than the first electrode density; a display panel driver configured to drive the pixel unit; and a touch sensor driver configured to change at least one of a voltage level of a driving pulse applied to the first touch sensor region and an accumulated number of the touch signals sensed from the first touch sensor region based on the touch signals sensed from the first touch sensor region overlapping with the sensing region.
    Type: Application
    Filed: August 29, 2022
    Publication date: June 8, 2023
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Jong Hee HWANG, Bo Gun SEO, Kyoung Hwan KIM
  • Patent number: 11655315
    Abstract: A method for preparing a catalyst for use in polymerizing a conjugated diene-based monomer, the catalyst, and a method for preparing a conjugated diene-based polymer using the same are disclosed herein. In an embodiment, a method of preparing a catalyst comprises mixing a lanthanide rare earth element-containing compound, an alkylating agent compound and a halogen compound in the presence of a solvent to prepare a catalyst composition, adding a conjugated diene-based monomer to the catalyst composition to form a preformed catalyst composition, and aging the preformed catalyst composition at a temperature of ?1° C. to ?15° C. for 3 hours to 98 hours to prepare the catalyst. The catalyst has excellent catalyst activity and polymerization reactivity and is useful for preparing a conjugated diene-based polymer which has an excellent modification ratio and improved compounding properties.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: May 23, 2023
    Inventors: Kyoung Hwan Oh, Hee Jung Jeon, Su Hwa Kim, Jeong Heon Ahn, Jin Sook Ryu, Suk Youn Kang
  • Patent number: 11649656
    Abstract: A smart deadlock system according to an embodiment of the present invention includes a thumb-turn, a key cylinder, a connecting shaft connecting the thumb-turn and the key cylinder, and a sensor module. The sensor module may include a sensing unit to sense a rotation state of a rotation sensing element inserted onto the connecting shaft, and generate sensing information associated with the rotation state of the rotation sensing element, and a rotation information generation unit to receive the sensing information from the sensing unit, and generate rotation information associated with an extent of rotation of the rotation sensing element based on the sensing information. According to the smart deadlock system, it is possible to check the operation of the deadlock more accurately by sensing the rotation state of the rotation sensing element using the sensor.
    Type: Grant
    Filed: November 10, 2020
    Date of Patent: May 16, 2023
    Assignee: DONGSUNG INDUSTRY CO., LTD
    Inventors: Joo Hee Yeo, Kyoung Hwan Jung
  • Publication number: 20230146440
    Abstract: The present invention relates to an oil-extended conjugated diene-based polymer or an oil-extended modified conjugated diene-based polymer, which has excellent wet skid resistance and abrasion resistance in a balanced way, and a rubber composition including the same, and by controlling the microstructure of the polymer such that a full width at half maximum (FWHM) value of a tan ? peak shown in a temperature range of -100° C. to 100° C. becomes 20° C. or higher in a tan ? graph in accordance with temperature, derived from dynamic viscoelasticity analysis by an Advanced Rheometric Expansion System (ARES), and by including a vegetable oil in a polymer, excellent viscoelasticity behavior properties may be shown, and accordingly, the improvement of overall physical properties may be expected.
    Type: Application
    Filed: November 1, 2021
    Publication date: May 11, 2023
    Applicant: LG Chem, Ltd.
    Inventors: Kyoung Hwan Oh, You Seok Seo, He Seung Lee, Geun Seung Baek, Jae Moon Jun
  • Publication number: 20230137583
    Abstract: The present invention relates to a weld bead inspection device that inspects the shape of a weld bead, and provides a weld bead inspection device capable of inspecting the welding quality, welding state, and the like by imaging the shape of the weld bead in a pipe. For this purpose, the weld bead inspection device of the present invention includes an image sensor unit that images a shape of a weld bead in a downwardly open inner space formed on a middle inner side of a housing unit and an illumination unit that provides illumination light directly or indirectly to the weld bead. Accordingly, by moving and rotating the weld bead inspection device along an outer peripheral surface of a pipe to be inspected, it is possible to quickly and accurately inspect the weld bead by virtue of a simple inspection operation even in a complex facility structure.
    Type: Application
    Filed: April 20, 2021
    Publication date: May 4, 2023
    Inventors: Min-gab BOG, Hyeon Seop PARK, Na Yeong PARK, Kyoung Hwan HEO
  • Publication number: 20230108559
    Abstract: The present invention relates to an oil-extended modified conjugated diene-based polymer having excellent tensile properties and abrasion resistance, a method for preparing same and a rubber composition including same, and provides an oil-extended modified conjugated diene-based polymer including a modified polymer chain including a repeating unit derived from a conjugated diene-based monomer and a functional group derived from an aminoalkoxysilane-based modifier; and a derived unit from a vegetable oil, wherein at least one of the modified polymer chain is coupled with the derived unit from vegetable oil, N and Si atoms are included in 100 ppm or more each based on a total weight of the polymer, two glass transition temperatures of Tg1 and Tg2 measured by differential scanning calorimetry (DSC) are shown, Tg1 is ?80° C. to ?20° C., Tg2 is ?50° C. to 30° C., and Tg2 is higher than Tg1, a method for preparing same and a rubber composition including same.
    Type: Application
    Filed: October 12, 2021
    Publication date: April 6, 2023
    Applicant: LG CHEM, LTD.
    Inventors: Kyoung Hwan OH, You Seok SEO, Jae Sun CHOI
  • Publication number: 20230037910
    Abstract: A spectrum analyzer having a memory function to adopt a digital-data-based frequency sweep scheme while achieving performance comparable to performance of a high-speed FFT spectrum analyzer, and a method of controlling the spectrum analyzer, in which the spectrum analyzer includes: an ADC for converting a BWP signal, which is at least one analog unit frequency band signal, into a digital data sample at a predetermined sample rate according to a span set by a user; a digital sweep part for sweeping the data sample passed through the ADC while digitally decimating the data sample through a decimation processing block having a two-stage cascaded structure, and processing the swept data sample to increase a frequency sweep speed; and a control unit for controlling the digital sweep part according to various items input, set, and selected by the user to perform spectrum analysis and output a spectrum analysis result.
    Type: Application
    Filed: October 21, 2022
    Publication date: February 9, 2023
    Inventors: Young Su KWAK, Kyoung Hwan JU
  • Patent number: 11548962
    Abstract: A self-healing polymer network containing a physical crosslinking agent, a composition therefor, and an optical element comprising the same is provided. The self-healing polymer network comprises a polymer derived from monomers including self-healing monomers each having a first polymerizable functional group and at least one of urethane, urea, or amide group chemically linked to the first polymerizable functional group, wherein the polymer has a backbone formed by polymerizing the first polymerizable functional groups of the self-healing monomers and a plurality of side groups each having at least one of urethane, urea, or amide group chemically linked to the backbone. In addition, the self-healing polymer network comprises a physical crosslinking agent which is an alcohol mixture having at least two of monool, diol, triol, and tetraol or the higher polyol and crosslinking the polymer by physically crosslinking the urethane, urea, or amide group of the side groups.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: January 10, 2023
    Assignee: INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY
    Inventors: Dong Hack Suh, Kyoung Hwan Choi, Jeong Seop Oh
  • Publication number: 20220377262
    Abstract: An image sensor includes a pixel defining pattern in a mesh form. A first division pattern divides a pixel area into two halves. A second division pattern divides the pixel area into two halves. A first diagonal division pattern divides the pixel area into two halves. A second diagonal division pattern divides the pixel area into two halves. First through eighth photodiodes are arranged in the pixel area.
    Type: Application
    Filed: January 20, 2022
    Publication date: November 24, 2022
    Inventors: Kyoung Hwan MOON, Ji Hoon KIM, Young Jun LEE
  • Patent number: 11505624
    Abstract: The present invention relates to a rubber composition having excellent tensile properties and viscoelasticity properties and including a modified conjugated diene-based polymer. The rubber composition may include a modified conjugated diene-based polymer which is selected considering target tensile properties and viscoelasticity properties, by predicting in advance the correlation of the modification ratio of the modified conjugated diene-based polymer and the dynamic viscoelasticity loss coefficient at 60° C. of the rubber composition through Mathematical Formula 1 and Mathematical Formula 2. Therefore, excellent compounding properties may be shown.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: November 22, 2022
    Inventors: Jin Sook Ryu, Kyoung Hwan Oh, Woo Jin Cho, Suk Youn Kang, Sung Joon Oh, Sun Ok Oh
  • Publication number: 20220311310
    Abstract: A self-operated incinerator system is disclosed. The self-operated incinerator system comprises: an incinerator; a steam boiler configured to receive waste heat from the incinerator so as to produce steam; a turbine device configured to generate a turbine rotational force by receiving the steam produced by the steam boiler; a generator configured to generate power by using the turbine rotational force generated by the turbine device; and a storage battery configured to store the power generated by the generator and to use the power for starting or normally operating at least one from among the incinerator and the steam boiler.
    Type: Application
    Filed: July 22, 2020
    Publication date: September 29, 2022
    Inventors: Kyoung Hwan KIM, Byung Chul CHEON
  • Publication number: 20220289871
    Abstract: The present invention relates to a method for preparing a modified conjugated diene-based polymer having excellent physical properties such as tensile properties and viscoelasticity properties with a high modification ratio.
    Type: Application
    Filed: September 18, 2020
    Publication date: September 15, 2022
    Applicant: LG CHEM, LTD.
    Inventors: Hyo Jin Bae, Su Hwa Kim, Kyoung Hwan Oh, Tae Chul Lee
  • Publication number: 20220204674
    Abstract: The present invention relates to a modified conjugated diene-based polymer having excellent processability and good tensile strength and viscoelasticity, and a rubber composition including the same, and provides a modified conjugated diene-based polymer including a first chain including a repeating unit derived from a conjugated diene-based monomer; a second chain including a repeating unit derived from a compound represented by Formula 1; and a derived unit from an alkoxysilane-based modifier, wherein the first chain and the second chain are coupled by the derived unit from the modifier.
    Type: Application
    Filed: September 11, 2020
    Publication date: June 30, 2022
    Applicant: LG Chem, Ltd.
    Inventors: Ho Young Lee, Jae Moon Jun, Jung Hwan Oh, Hye Jung Shin, Kyoung Hwan Oh, Hyun Jun Kim, Hyeon Jong Park
  • Patent number: 11365269
    Abstract: The present invention provides a modifier, a modified and conjugated diene-based polymer which is modified using the same, and a rubber composition including the modified and conjugated diene-based polymer, and more particularly, a modifier which includes a compound represented by Formula 1 and is capable of improving the mixing properties between a conjugated diene-based polymer and a filler, a modified and conjugated diene-based polymer which is modified using the same, and a rubber composition including the modified and conjugated diene-based polymer.
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: June 21, 2022
    Inventors: Suk Youn Kang, Hyo Jin Bae, Hee Jung Jeon, Jeong Heon Ahn, Heung Yeal Choi, Kyoung Hwan Oh, Woo Jin Cho
  • Publication number: 20220159855
    Abstract: A display apparatus including display panel, a rear case to cover a rear of the display panel and the rear case including a cable fixing hole to which a cable is fixed, a connector connected to the cable and fastened to the rear case so that the cable is connected to the rear case, a cable holder to surround a part of the cable and fixed to the cable fixing hole so that the cable is fixed to the rear case, and a clamp to fix the cable holder to the cable fixing hole, wherein the clamp includes a first hook to be fixed to the cable fixing hole, and a second hook having a different shape than a shape of the first hook and to be fixed to the cable fixing hole to have a greater fixing force than a fixing force of the first hook.
    Type: Application
    Filed: February 8, 2022
    Publication date: May 19, 2022
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ki Hun KIM, Kyoung Hwan KIM, Seong Soo KIM, Won Kyu PARK, Jin PARK, Kyeong Jae LEE, Byeong Kyu PARK
  • Patent number: 11335471
    Abstract: Proposed is a system for closing a drum unit for storing radioactive waste, the system including: a supporting unit configured to be seated on the ground; a drum unit configured to be seated on a top part of the supporting unit and having a plurality of first fastening holes; a moving unit configured to move to a side of the drum unit; a cover unit provided at the inside of the moving unit or at one side of the drum unit and having a plurality of second fastening holes; tightening units configured to be inserted into the associated second fastening holes; a fastening unit configured to grip the cover unit through a gripping part to move the cover unit to the top part of the drum unit simultaneously, thereby closing a gap between the drum unit and the cover unit; and a controller configured to control the fastening unit.
    Type: Grant
    Filed: July 23, 2021
    Date of Patent: May 17, 2022
    Assignee: JS CHEM CORPORATION
    Inventors: Yong Hyun Kim, Seok Hee Im, Dong Hoon Oh, Kyoung Hwan Joung, Seong Kyun Im
  • Publication number: 20220127446
    Abstract: A modified conjugated diene-based polymer, a method of making the same, and a rubber composition including the same are disclosed herein. The modified conjugated diene-based polymer has excellent processability and good tensile strength and viscoelasticity. In some embodiments, a modified conjugated diene-based polymer includes a first chain including a repeating unit derived from a conjugated diene-based monomer, a second chain including a repeating unit derived from a compound represented by Formula 1 or Formula 2, and a derived unit from an alkoxysilane-based modifier, wherein the first chain and the second chain are coupled by the derived unit from the modifier.
    Type: Application
    Filed: September 11, 2020
    Publication date: April 28, 2022
    Applicant: LG Chem, Ltd.
    Inventors: Hye Jung Shin, You Seok Seo, He Seung Lee, Youk Reol Na, Hyun Jun Kim, Ro Mi Lee, Kyoung Hwan Oh, Jae Sun Choi