Patents by Inventor Hyun-Kyu Choi
Hyun-Kyu Choi 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).
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Publication number: 20220336826Abstract: A separator for a fuel cell, which is stacked on a reaction layer including a membrane electrode assembly (MEA) and a gas diffusion layer (GDL) stacked on the MEA includes: a plate body stacked on the GDL; stepped portions, on which a reactant gas flows in a first direction, disposed on a first surface of the plate body, the first surface facing the GDL, the stepped portions disposed in a second direction that intersects the first direction in which the reactant gas flows; lands disposed on the stepped portions so as to be spaced apart from one another in the second direction, the lands being in contact with the GDL; first channels defined between the GDL and the stepped portions so as to be disposed between adjacent lands, the first channels configured such that the reactant gas flows along the first channels; and second channels defined between the plate body and the GDL so as to communicate with the first channels, the second channels configured such that the reactant gas flows along the second channels.Type: ApplicationFiled: August 10, 2021Publication date: October 20, 2022Inventors: Ah Reum KIM, Hyun Kyu CHOI, Hyun Jeong KIM, Zuh Youn VAHC, Bae Jung KIM, Sun Hwi KIM, Chan Gi KIM
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Publication number: 20220272066Abstract: A notification condition customized message processing device includes a chat room opening unit which opens a chat room connected to a plurality of user terminals, an individual notification condition setting unit which sets individual notification conditions depending on a user status and a message type for each of the plurality of user terminals, a chat message processing unit which receives a chat message from a chat sending user terminal through the chat room and inserts the chat message into a message thread associated with the chat room, a chat message notification method determining unit which determines at least one chat receiving user terminal and determines a notification method for the chat message based on individual notification conditions for each of the at least one chat receiving user terminals, and a chat message notification unit which notifies each of the at least one chat receiving user terminals of the chat message.Type: ApplicationFiled: February 23, 2022Publication date: August 25, 2022Applicants: Delta PDS CO., LTD.Inventors: Jae Ho CHOI, Hyun Kyu CHOI, Seo Hyun CHOI
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Patent number: 11251173Abstract: A display device including a display panel including a substrate, pixels provided on the substrate, and first lines connected to the pixels, the display device having a bending area where the display panel is bent. The display panel also includes a chip on film overlapping with a portion of the display panel and having second lines, an anisotropic conductive film provided between the chip on film and the display panel connecting the first lines and the second lines, and a coating layer covering the bending area and one end of the chip on film. In such a device, lines of the chip on film may be prevented from being corroded as they may be spaced apart from an edge of an insulating film.Type: GrantFiled: May 8, 2020Date of Patent: February 15, 2022Assignee: Samsung Display Co., Ltd.Inventors: Jun Namkung, Soon Ryong Park, Ju Yeop Seong, Hyun Kyu Choi
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Publication number: 20210280398Abstract: A support unit includes a first plate on which a substrate is seated, a second plate located under the first plate, a third plate located under the second plate, a ground electrode disposed between the first plate and the second plate, and a heater electrode disposed between the second plate and the third plate. The first plate includes a first dielectric plate, a conductive plate disposed under the first dielectric plate, and a second dielectric plate disposed under the conductive plate.Type: ApplicationFiled: March 5, 2021Publication date: September 9, 2021Inventors: Seungjun Oh, Su Hyung Lee, Hyun Kyu Choi, Jin Woo Choi, Jungyoon Yang
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Patent number: 10926332Abstract: A method of manufacturing iron powder configured for improving a recovery rate of chromium using ingot including chromium in a content suitably higher than a target content at the time of manufacturing iron powder including chromium, may include preparing ingot further including chromium (Cr) so that a content of chromium (Cr) in the ingot is 1 to 30% higher than a target content of chromium (Cr) in finally produced iron powder; dissolving the ingot to prepare molten steel; forming iron powder by performing water atomization on the molten steel; and adjusting a content of carbon (C) in the iron powder by performing reduction treatment on the iron powder.Type: GrantFiled: November 15, 2017Date of Patent: February 23, 2021Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Joon Chul Yun, Hyun Gon Lyu, Hyun Kyu Choi, Ji Min Yu
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Publication number: 20210049538Abstract: A work object processing apparatus includes: a message thread processing unit configured to be displayed through a chat room of an Internet messenger associated with a message thread, to receive a work object including a work producer, a work processor, and work contents, and to process a work object operation on the message thread; and a work object processing unit configured to process a work object state of the work object changed, from among a plurality of work object states of the work object included in a work processing diagram, based on a work interaction between the work producer and the work processor.Type: ApplicationFiled: October 30, 2020Publication date: February 18, 2021Applicants: DELTA PDS CO., LTDInventors: Hyun Kyu CHOI, Dong Kyu CHOI, Jae Ho CHOI
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Patent number: 10860958Abstract: A work object processing apparatus includes a memory unit configured to include a user memory region associated with user information, a message thread memory region accessible through the user information and associated with a message thread, and a work object memory region accessible through the message thread and associated with a work object, a message thread processing unit configured to receive a work object, including a work producer, a work processor, and work contents, through a chat room associated with a message thread and to process work object operation on the message thread, and a work object processing unit configured to process a work object state of the work object changed in a work processing diagram depending on a work interaction between the work producer and the work processor.Type: GrantFiled: December 15, 2016Date of Patent: December 8, 2020Assignees: DELTA PDS CO., LTDInventors: Hyun Kyu Choi, Dong Kyu Choi, Jae Ho Choi
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Publication number: 20200266183Abstract: A display device including a display panel including a substrate, pixels provided on the substrate, and first lines connected to the pixels, the display device having a bending area where the display panel is bent. The display panel also includes a chip on film overlapping with a portion of the display panel and having second lines, an anisotropic conductive film provided between the chip on film and the display panel connecting the first lines and the second lines, and a coating layer covering the bending area and one end of the chip on film. In such a device, lines of the chip on film may be prevented from being corroded as they may be spaced apart from an edge of an insulating film.Type: ApplicationFiled: May 8, 2020Publication date: August 20, 2020Inventors: Jun NAMKUNG, Soon Ryong PARK, Ju Yeop SEONG, Hyun Kyu CHOI
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Patent number: 10719103Abstract: A display device includes a display panel including a bendable display panel including a substrate and a plurality of pad portions on the substrate. The substrate includes a cutout between adjacent pad portions of the plurality of pad portions.Type: GrantFiled: June 7, 2017Date of Patent: July 21, 2020Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Yun-Mo Chung, Dae Woo Lee, Jun Namkung, Soon Ryong Park, Ju Yeop Seong, Hyun Kyu Choi
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Patent number: 10651162Abstract: A display device including a display panel including a substrate, pixels provided on the substrate, and first lines connected to the pixels, the display device having a bending area where the display panel is bent. The display panel also includes a chip on film overlapping with a portion of the display panel and having second lines, an anisotropic conductive film provided between the chip on film and the display panel connecting the first lines and the second lines, and a coating layer covering the bending area and one end of the chip on film. In such a device, lines of the chip on film may be prevented from being corroded as they may be spaced apart from an edge of an insulating film.Type: GrantFiled: December 12, 2018Date of Patent: May 12, 2020Assignee: Samsung Display Co., Ltd.Inventors: Jun Namkung, Soon Ryong Park, Ju Yeop Seong, Hyun Kyu Choi
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Publication number: 20190115335Abstract: A display device including a display panel including a substrate, pixels provided on the substrate, and first lines connected to the pixels, the display device having a bending area where the display panel is bent. The display panel also includes a chip on film overlapping with a portion of the display panel and having second lines, an anisotropic conductive film provided between the chip on film and the display panel connecting the first lines and the second lines, and a coating layer covering the bending area and one end of the chip on film. In such a device, lines of the chip on film may be prevented from being corroded as they may be spaced apart from an edge of an insulating film.Type: ApplicationFiled: December 12, 2018Publication date: April 18, 2019Inventors: Jun NAMKUNG, Soon Ryong PARK, Ju Yeop SEONG, Hyun Kyu CHOI
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Patent number: 10177129Abstract: A display device includes a display panel including a substrate, pixels provided on the substrate, and first lines connected to the pixels, the display device having a bending area where the display panel is bent. The display panel also includes a chip on film overlapping with a portion of the display panel and having second lines, an anisotropic conductive film provided between the chip on film and the display panel connecting the first lines and the second lines, and a coating layer covering the bending area and one end of the chip on film. In such a device, lines of the chip on film may be prevented from being corroded as they may be spaced apart from an edge of an insulating film.Type: GrantFiled: May 22, 2017Date of Patent: January 8, 2019Assignee: Samsung Display Co., Ltd.Inventors: Jun Namkung, Soon Ryong Park, Ju Yeop Seong, Hyun Kyu Choi
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Publication number: 20180290213Abstract: A method of manufacturing iron powder configured for improving a recovery rate of chromium using ingot including chromium in a content suitably higher than a target content at the time of manufacturing iron powder including chromium, may include preparing ingot further including chromium (Cr) so that a content of chromium (Cr) in the ingot is 1 to 30% higher than a target content of chromium (Cr) in finally produced iron powder; dissolving the ingot to prepare molten steel; forming iron powder by performing water atomization on the molten steel; and adjusting a content of carbon (C) in the iron powder by performing reduction treatment on the iron powder.Type: ApplicationFiled: November 15, 2017Publication date: October 11, 2018Applicants: Hyundai Motor Company, Kia Motors CorporationInventors: Joon Chul YUN, Hyun Gon LYU, Hyun Kyu CHOI, Ji Min YU
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Publication number: 20180006004Abstract: A display device includes a display panel including a substrate, pixels provided on the substrate, and first lines connected to the pixels, the display device having a bending area where the display panel is bent. The display panel also includes a chip on film overlapping with a portion of the display panel and having second lines, an anisotropic conductive film provided between the chip on film and the display panel connecting the first lines and the second lines, and a coating layer covering the bending area and one end of the chip on film. In such a device, lines of the chip on film may be prevented from being corroded as they may be spaced apart from an edge of an insulating film.Type: ApplicationFiled: May 22, 2017Publication date: January 4, 2018Inventors: Jun NAMKUNG, Soon Ryong PARK, Ju Yeop SEONG, Hyun Kyu CHOI
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Publication number: 20170371376Abstract: A display device includes a display panel including a bendable display panel including a substrate and a plurality of pad portions on the substrate. The substrate includes a cutout between adjacent pad portions of the plurality of pad portions.Type: ApplicationFiled: June 7, 2017Publication date: December 28, 2017Inventors: YUN-MO CHUNG, DAE WOO LEE, JUN NAMKUNG, SOON RYONG PARK, JU YEOP SEONG, HYUN KYU CHOI
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Publication number: 20170132639Abstract: Disclosed herein is a computer-executable method for managing customers within a group, which is performed by a customer management server connected to at least two terminals. The method includes creating a transaction group in which a seller and a purchaser participate and a commodity or service is traded through a group point dependent on a group, providing the purchaser with an evaluation participation opportunity by providing the purchaser with an evaluation point when the purchase of the commodity or service is completed, receiving evaluation for the commodity or service from the purchaser and requesting an evaluation response according to the evaluation from the seller, and returning the evaluation point to the seller when the evaluation response is received and providing the purchaser with a group point according to the evaluation under the control of the seller.Type: ApplicationFiled: November 9, 2016Publication date: May 11, 2017Applicants: DELTA PDS CO., LTD.Inventors: Hyun Kyu CHOI, Dong Kyu CHOI, Jae Ho CHOI
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Publication number: 20170103362Abstract: A work object processing apparatus includes a memory unit configured to include a user memory region associated with user information, a message thread memory region accessible through the user information and associated with a message thread, and a work object memory region accessible through the message thread and associated with a work object, a message thread processing unit configured to receive a work object, including a work producer, a work processor, and work contents, through a chat room associated with a message thread and to process work object operation on the message thread, and a work object processing unit configured to process a work object state of the work object changed in a work processing diagram depending on a work interaction between the work producer and the work processor.Type: ApplicationFiled: December 15, 2016Publication date: April 13, 2017Applicants: DELTA PDS CO., LTDInventors: Hyun Kyu CHOI, Dong Kyu CHOI, Jae Ho CHOI
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Patent number: 7720374Abstract: The present invention relates to a camera module, which comprises a packaged image sensor, an IR filter, a lens and a holder for holding these components and has a reduced overall size and height. A camera module according to the present invention comprises an image sensor package having a translucent substrate formed thereon; and a holder having a lower end attached to the translucent substrate of the image sensor package. At this time, the holder comprises a horizontal portion formed with a through-hole and a connecting portion extending downwardly from an edge of the horizontal portion, and an end surface of a lower end of the connecting portion is formed with an inner stepped portion so as to be attached to a peripheral portion of a top surface and a lateral surface of the translucent substrate.Type: GrantFiled: July 14, 2006Date of Patent: May 18, 2010Assignee: Optopac Co, Ltd.Inventors: Young-Seok Kim, Hyeok-Hwan Kwon, Hyun-Kyu Choi, Hwan-Chul Lee
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Publication number: 20080283952Abstract: Provided are a semiconductor package, a method of fabricating the same, and a semiconductor package module for an image sensor The semiconductor package includes a mounting portion on which a semiconductor chip is mounted; a semiconductor chip including a plurality of bonding pads disposed along an edge thereof, wherein the semiconductor chip adhered onto the mounting portion; a plurality of leads spaced apart from a sidewall of the semiconductor chip and having a greater height than the semiconductor chip; an encapsulant for fixing the mounting portion and the leads and encapsulating a bottom surface and a sidewall of the semiconductor package and exposing top and bottom surfaces of the leads; bonding wires for connecting the bonding pads of the semiconductor chip with the exposed top surfaces of the leads; and a transparent plate adhered onto the leads a predetermined space apart from the semiconductor chip.Type: ApplicationFiled: December 22, 2006Publication date: November 20, 2008Inventors: Hyun-Kyu Choi, Chor Hong Koh
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Publication number: 20070241273Abstract: The present invention relates to a camera module, which comprises a packaged image sensor, an IR filter, a lens and a holder for holding these components and has a reduced overall size and height. A camera module according to the present invention comprises an image sensor package having a translucent substrate formed thereon; and a holder having a lower end attached to the translucent substrate of the image sensor package. At this time, the holder comprises a horizontal portion formed with a through-hole and a connecting portion extending downwardly from an edge of the horizontal portion, and an end surface of a lower end of the connecting portion is formed with an inner stepped portion so as to be attached to a peripheral portion of a top surface and a lateral surface of the translucent substrate.Type: ApplicationFiled: July 14, 2006Publication date: October 18, 2007Applicant: OPTOPAC CO., LTDInventors: Young-Seok KIM, Hyeok-Hwan KWON, Hyun-Kyu CHOI, Hwan-Chul LEE