Patents by Inventor Sun Chang

Sun Chang 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: 20230001387
    Abstract: An object of the present invention is to increase the reduction performance of nitrogen oxides compared to existing three-way catalysts; simultaneously inhibit the emission of ammonia and nitrous oxide; simplify a process by means of a method of further doping an iridium-ruthenium catalyst into a commercial three-way catalyst; and expand the scope of application. The present invention provides a catalyst for simultaneously inhibiting the emission of ammonia and nitrous oxide by doping an iridium-ruthenium catalyst component into a three-way catalyst (TWC), a diesel oxidation catalyst, or a lean NOx trap supported on a honeycomb support.
    Type: Application
    Filed: November 25, 2020
    Publication date: January 5, 2023
    Inventors: Iljeong HEO, Young Woo YOU, Yun Ho JEONG, Ji Hoon PARK, Jin Hee LEE, Soo Min KIM, Tae Sun CHANG
  • Publication number: 20220392922
    Abstract: A display device and a method of fabricating a display device are provided. A display device includes: a first electrode and a second electrode on a substrate and spaced apart from each other; a third electrode on the substrate; and a first light emitting element between the first electrode and the second electrode. The first electrode, the second electrode, and the third electrode may be arranged on a same layer. The third electrode may be electrically separated from the first electrode and the second electrode.
    Type: Application
    Filed: January 18, 2022
    Publication date: December 8, 2022
    Inventors: Se Hyun LEE, Dong Woo KIM, Min Gyeong SHIN, Hak Sun CHANG
  • Publication number: 20220382093
    Abstract: A liquid crystal display device includes a substrate, and a pixel electrode disposed on the substrate, the pixel electrode including a first stem portion that extends in a first direction, a second stem portion that extends in a second direction crossing the first direction and intersecting with the first stem portion, a plurality of branch portions, the branch portions extending to the first direction and the second direction from the first stem portion or the second stem portion, a first connection portion that connects distal ends of some of the branch electrodes to each other, extends in the first direction and intersects with the second stem portion, and a first edge electrode that is connected to one distal end of the second stem portion and extends in the first direction.
    Type: Application
    Filed: August 8, 2022
    Publication date: December 1, 2022
    Applicant: Samsung Display Co. Ltd.
    Inventors: Se Hyun LEE, Hak Sun CHANG, Cheol SHIN
  • Publication number: 20220347256
    Abstract: The present invention relates to a composition for promoting hair growth, and alleviating and treating hair loss, comprising substance P (SP) as an active ingredient. More specifically, the present invention relates to a pharmaceutical composition, which comprises substance P, for promoting hair growth, and preventing or treating hair loss and a cosmetic composition, which comprises substance P, for promoting hair or alleviating hair loss by increasing the activity of hair follicle cells, maintaining the growth phase of hair follicles, and inhibiting the progression into the regression phase. The composition of the present invention, which comprises substance P, an antioxidant, a surfactant, and a thickening agent, can be used for application to medicines, cosmetics, etc., for promoting hair growth, and alleviating and treating hair loss.
    Type: Application
    Filed: October 29, 2019
    Publication date: November 3, 2022
    Inventors: Junho KIM, Da Jung KIM, Ga Eun YOU, Jungsun LEE, Song Sun CHANG
  • Publication number: 20220345784
    Abstract: A system for exchanging a number of local area messages includes a processor, system memory, a network interface card, and a non-transitory storage medium that are communicatively coupled. The non-transitory storage medium includes a first receiving subcomponent, a first sending subcomponent, a second receiving subcomponent, a second sending subcomponent, and a controlling subcomponent. The first receiving subcomponent receiving a first message from a first video device. The first sending subcomponent sends the first message to a second video device. The second receiving subcomponent receives a second message from the second video device. The second sending subcomponent sends the second message to the first video device. The controlling subcomponent controls the communication of the first message and the second message to monitor the identity of the user of the first video device and the second video device.
    Type: Application
    Filed: July 5, 2022
    Publication date: October 27, 2022
    Applicant: Telegenic, Inc.
    Inventor: Sun Chang
  • Publication number: 20220336707
    Abstract: A pixel includes a first conductive pattern, a second conductive pattern, and a third conductive pattern that are spaced apart from each other; a first electrode at least partially overlapping and directly contacting the first conductive pattern; a second electrode adjacent to the first electrode; a third electrode on the third conductive pattern and directly contacting the third conductive pattern, and a fourth electrode at least partially overlapping, and directly contacting the second conductive pattern; a first pixel electrode and a second pixel electrode that are on at least one of the first, second, third, and fourth electrodes; and light emitting elements electrically connected to the first and second pixel electrodes. The first conductive pattern, the first electrode, and the first pixel electrode are electrically connected to each other. The third conductive pattern, the third electrode, and the second pixel electrode are electrically connected to each other.
    Type: Application
    Filed: November 9, 2021
    Publication date: October 20, 2022
    Applicant: Samsung Display Co., LTD.
    Inventors: Min Gyeong SHIN, Dong Woo KIM, Se Hyun LEE, Hak Sun CHANG
  • Patent number: 11435622
    Abstract: A liquid crystal display device includes a substrate, and a pixel electrode disposed on the substrate, the pixel electrode including a first stem portion that extends in a first direction, a second stem portion that extends in a second direction crossing the first direction and intersecting with the first stem portion, a plurality of branch portions, the branch portions extending to the first direction and the second direction from the first stem portion or the second stem portion, a first connection portion that connects distal ends of some of the branch electrodes to each other, extends in the first direction and intersects with the second stem portion, and a first edge electrode that is connected to one distal end of the second stem portion and extends in the first direction.
    Type: Grant
    Filed: July 13, 2021
    Date of Patent: September 6, 2022
    Assignee: SAMSUNG DISPLAY CO. LTD.
    Inventors: Se Hyun Lee, Hak Sun Chang, Cheol Shin
  • Patent number: 11381876
    Abstract: An apparatus for managing network enabled devices including a processor, a number of network interfaces, communicatively connected to the processor and a non-transitory storage medium. The modules may include a broadcast content obtain module, an other media obtain module, a content aggregate module, an aggregated content send module, a command receive module, and an instruction send module. The apparatus may request that an overlay be displayed on a device so that a user may instruct an instruction send module to interact with an Internet of Things device.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: July 5, 2022
    Inventor: Sun Chang
  • Publication number: 20220195902
    Abstract: The present invention relates to a VOC reduction system and a VOC reduction method that applies pulse type thermal energy to a catalyst to activate the catalyst and oxidizes and removes the VOC.
    Type: Application
    Filed: February 20, 2020
    Publication date: June 23, 2022
    Inventors: Jin Hee LEE, Iljeong HEO, Tae Sun CHANG, Ji Hoon PARK, Sang Joon KIM, Young Jin KIM
  • Patent number: 11365388
    Abstract: Provided is a method of producing a novel microorganism having a minimal genome. In particular, provided are a method of producing a novel microorganism having a smaller genome size than a wild-type, the method including the step of culturing the microorganism in a medium containing LB broth with stepwise decreasing concentrations of the LB broth; and a novel microorganism having a smaller genome size than a wild-type, produced by the above method. Despite the small genome size, the novel microorganism of the present disclosure may have a high growth rate, pyruvate production capacity, and protein translation efficiency thereby being usefully applied to industry such as production of recombinant proteins or pyruvate.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: June 21, 2022
    Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Sun-Chang Kim, Byung-Kwan Cho, Donghui Choe, Bong Hyun Sung, Jun Hyoung Lee
  • Patent number: 11328791
    Abstract: A method for determining a human subject's risk of developing acute kidney injury (AKI) from acute myocardial infarction (AMI) includes: obtaining a blood sample; determining at least two miRNA expression levels therein, which are selected from miR-23a-3p, miR-24-3p, and miR-145-5p expression levels; calculating probability of developing AKI from AMI based on the at least two miRNA expression levels and a logistic regression model; comparing the probability with a predetermined standard; and determining that the human subject is at the risk of developing AKI when the probability is higher than the predetermined standard. A composition may be administered to the human subject for inhibiting development of AKI, if any.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: May 10, 2022
    Assignees: Chang Gung University, Chang Gung Memorial Hospital, Linkou
    Inventors: Pao-Hsien Chu, Yu-Sun Chang, Chia-Chun Chen, Pei-Chun Fan
  • Publication number: 20220033258
    Abstract: Proposed are a naphthalene-based hydrogen storage material including a naphthalene group, the naphthalene-based hydrogen storage material being capable of being used as a hydrogen storage media for supplying hydrogen to a device using hydrogen such as a fuel cell and a hydrogen combustion device, and to a method of storing and releasing hydrogen using the same. The hydrogen storage material can exhibit a significantly high hydrogen capacity, and can have excellent cost competitiveness with the use of a low-cost organic compound which is commercially available in the art.
    Type: Application
    Filed: July 30, 2021
    Publication date: February 3, 2022
    Inventors: Ji Hoon Park, Kwan Yong Jeong, Soo Min Kim, Sunil Kwon, Iljeong Heo, Jin Hee Lee, Tae Sun Chang
  • Publication number: 20220016590
    Abstract: Proposed is a carbon dioxide reforming (CDR) reactor having a multilayered catalyst layer arrangement for preventing catalyst deactivation, wherein, in the reactor in which a CDR reaction for reacting methane (CH4) with carbon dioxide (CO2) to reform the methane into a synthesis gas including carbon monoxide (CO) and hydrogen (H2) is performed, in order to prevent a case where an endothermic reaction between a catalyst and heated reactant gas supplied to the reactor gradually causes the temperature of the reactant gas to decrease and the catalyst is deactivated by cokes generated due to the decrease in temperature of the reactant gas, CDR catalysts in the reactor are arranged in multiple layers in a multilayered structure to allow the reactant gas temperature that has decreased due to the endothermic reaction to be restored in spaces between the catalyst layers.
    Type: Application
    Filed: November 22, 2019
    Publication date: January 20, 2022
    Inventors: Tae Sun CHANG, Iljeong HEO, Jung Hyun PARK, Beom Sik KIM, Ji Hoon PARK, Jin Hee LEE
  • Publication number: 20220002236
    Abstract: The present invention relates to a method of directly preparing a dicarbamate compound from a diamine compound, and more particularly to a method of directly preparing a dicarbamate compound by reacting a diamine compound with an alcohol compound in the presence of a mixed gas of carbon monoxide (CO) and oxygen (O2) using a Pd/MOx catalyst configured such that a palladium (Pd) active metal is supported on a metal oxide or metalloid oxide carrier.
    Type: Application
    Filed: November 19, 2018
    Publication date: January 6, 2022
    Inventors: Ji Hoon PARK, Tae Sun CHANG, Young Woo YOU, lljeong HEO, Jin Hee LEE, Seul Gi HAN, Kwan Yong JEONG
  • Patent number: 11187703
    Abstract: Disclosed herein is a method of determining whether a subject has or is at risk of developing a cancer. The method comprises, obtaining a sample from the subject; determining the levels of at least two target polypeptides, which are selected from the group consisting of, ANXA2, HSPA5, KNG1 and MMP1; and assessing whether the subject has or is at risk of developing the cancer based on the levels of target polypeptides. The present method provides a potential means to diagnose and predict the occurrence of oral squamous cell carcinoma, and accordingly, the subject in need thereof could receive a suitable therapeutic regimen in time.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: November 30, 2021
    Assignee: S&T BIOMED CO., LTD.
    Inventors: Jau-Song Yu, Yi-Ting Chen, Wei-Fan Chiang, Yung-Chin Hsiao, Yu-Sun Chang, Lai-Chu See, Kai-Ping Chang
  • Patent number: 11186616
    Abstract: Provided are a recombinant yeast having improved ability to produce ginsenoside, which is prepared by overexpressing INO2 and INO4 or deleting OPT1 in a yeast having ability to produce ginsenoside, a method of preparing the yeast, and a method of producing ginsenoside by using the yeast.
    Type: Grant
    Filed: September 21, 2020
    Date of Patent: November 30, 2021
    Assignee: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
    Inventors: Ju Young Lee, In Seung Jang, Seohyun Kim, Sun-Chang Kim, Suk Chea Jung, Jong Geon Jegal
  • Publication number: 20210353704
    Abstract: A Maclura pubescens extract or fraction or a Prunus cerasoides extract or fraction having neuroglobin (Ngb) activation and neuroprotective effects and, on the basis thereof, a neuroprotective composition containing, as an active ingredient, a Maclura pubescens extract or fraction or a Prunus cerasoides extract or fraction. The neuroprotective composition can be used, through the activation of neuroglobin (Ngb), as a pharmaceutical composition or a food composition for treatment, alleviation and prevention of a stroke, a cerebral infarction, thrombosis, cerebral degenerative disease, vascular dementia, memory loss, short-term memory impairment, a concentration disorder, anxiety, nervousness and the like, and for brain damage protection, brain function improvement and cranial nerve cell protection.
    Type: Application
    Filed: June 10, 2019
    Publication date: November 18, 2021
    Inventors: Yun Seon SONG, Min Sun CHANG, So Dam KIM, Da Sol LIM, You Jung YUN, Su Min KANG, Sang Ho CHOI, Sang Mi EUM, Soo Yong KIM, Jin Hyub PAIK, Seo Hea KIM, Na Kyung LEE, Youn In KIM, Sang Woo LEE, Hang JIN, Wan Yi LI
  • Publication number: 20210341796
    Abstract: A liquid crystal display device includes a substrate, and a pixel electrode disposed on the substrate, the pixel electrode including a first stem portion that extends in a first direction, a second stem portion that extends in a second direction crossing the first direction and intersecting with the first stem portion, a plurality of branch portions, the branch portions extending to the first direction and the second direction from the first stem portion or the second stem portion, a first connection portion that connects distal ends of some of the branch electrodes to each other, extends in the first direction and intersects with the second stem portion, and a first edge electrode that is connected to one distal end of the second stem portion and extends in the first direction.
    Type: Application
    Filed: July 13, 2021
    Publication date: November 4, 2021
    Applicant: Samsung Display Co. Ltd.
    Inventors: Se Hyun LEE, Hak Sun CHANG, Cheol SHIN
  • Publication number: 20210269766
    Abstract: The present invention relates to: a cell culture medium for culturing extracellular vesicles at high concentration, the medium comprising lactoferrin; a method for preparing a conditioned medium containing a high concentration of extracellular vesicles, the method comprising culturing cells in the cell culture medium; and use of lactoferrin in preparing a conditioned medium containing a high concentration of extracellular vesicles.
    Type: Application
    Filed: March 5, 2020
    Publication date: September 2, 2021
    Inventors: Jun Ho KIM, Ga Eun YOU, Jung Sun LEE, Song Sun CHANG
  • Publication number: 20210262908
    Abstract: The present invention relates to a method for concentrating extracellular vesicles in a fluid sample, and specifically, a method for concentrating extracellular vesicles with high efficiency within a short period of time, by using a filter with a pore size of 20 nm to 100 nm and controlling the composition of the fluid sample and the usage of an elution buffer. The method of the present invention for concentrating extracellular vesicles can simplify the process of concentration, reduce the time of concentration, and concentrate extracellular vesicles with high efficiency. That is, the method of the present invention can reduce time and cost for a concentration process and increase concentration efficiency compared to conventional concentration methods, and is thus an economical concentration method suitable for extracellular vesicles.
    Type: Application
    Filed: June 24, 2019
    Publication date: August 26, 2021
    Inventors: Junho Kim, Ga Eun You, Jungsun Lee, Song Sun Chang