Patents by Inventor Ki Won Seo
Ki Won Seo 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: 20240155885Abstract: Provided is a display device. A display device includes a display area and a buffer area disposed around the display area, a pixel electrode disposed on a substrate and in the display area, a bank covering an edge of the pixel electrode, light emitting elements disposed on the pixel electrode and extending in a thickness direction of the substrate, and a buffer disposed on the substrate and in the buffer area. The bank and the buffer are disposed on a same layer.Type: ApplicationFiled: July 25, 2023Publication date: May 9, 2024Applicant: Samsung Display Co., LTD.Inventors: Jung Hun NOH, Su Jin LEE, Bon Yong KOO, Ki Seong SEO, Ju Won YOON
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Patent number: 10716653Abstract: The present invention relates to an inhalation toxicity testing chamber device for nanoparticles having a plurality of concentrations. The present invention provides an inhalation toxicity testing chamber device for nanoparticles having a plurality of concentrations, which: can supply nanoparticles having different concentrations to particle exposure modules by stacking a plurality of particle exposure modules inside a single chamber housing and by allowing each particle exposure module so as to form an independent space from each other; can perform inhalation toxicity testing of nanoparticles having a plurality of concentrations through a single chamber housing by being capable of exposing the test animals put into each particle exposure module to nanoparticles having different concentrations; can easily perform inhalation toxicity tests of nanoparticles in a small scale laboratory etc.Type: GrantFiled: January 7, 2015Date of Patent: July 21, 2020Assignees: HYUNDAI CALIBRATION & CERTIFICATION TECHNOLOGIES CO., LTD., KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGYInventors: Kyu Hong Lee, Yong Taek Kwon, Ki Soo Jeon, Jae Seong Lee, Ki Won Seo, Ji Hyun Han
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Publication number: 20170367805Abstract: The present invention relates to an inhalation toxicity testing chamber device for nanoparticles having a plurality of concentrations. The present invention provides an inhalation toxicity testing chamber device for nanoparticles having a plurality of concentrations, which: can supply nanoparticles having different concentrations to particle exposure modules by stacking a plurality of particle exposure modules inside a single chamber housing and by allowing each particle exposure module so as to form an independent space from each other; can perform inhalation toxicity testing of nanoparticles having a plurality of concentrations through a single chamber housing by being capable of exposing the test animals put into each particle exposure module to nanoparticles having different concentrations; can easily perform inhalation toxicity tests of nanoparticles in a small scale laboratory etc.Type: ApplicationFiled: January 7, 2015Publication date: December 28, 2017Applicants: HYUNDAI CALIBRATION & CERTIFICATION TECHNOLOGIES C O., LTD., KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGYInventors: Kyu Hong LEE, Yong Taek KWON, Ki Soo JEON, Jae Seong LEE, Ki Won SEO, Ji Hyun HAN
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Patent number: 9659718Abstract: A high load switch for a vehicle includes a case having an opening formed at an upper side of the case; a first contact unit disposed at a lower side in the case; a second contact unit disposed at a lower side in the case and disposed directly above the first contact unit; and a contactor having one end fixed to one side in the case, and the other end disposed between the first contact unit and the second contact unit, in which a portion of the contactor between the one end and the other end is continuously formed, and the contactor includes a pusher unit formed by being bent upward so that an intermediate portion thereof penetrates the opening and protrudes, and a reinforcement bead formed on a surface of the contactor, thereby preventing deformation in the contactor and enhancing durability.Type: GrantFiled: October 31, 2013Date of Patent: May 23, 2017Assignee: DAE DONG CO., LTD.Inventors: Dong Pil Byoen, Ki Won Seo
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Publication number: 20150303004Abstract: The present invention relates to a high load switch for a vehicle, including: a case which has an opening formed at an upper side of the case; a first contact unit which is disposed at a lower side in the case; a second contact unit which is disposed at a lower side in the case and disposed directly above the first contact unit; and a contactor which has one end fixed to one side in the case, and the other end disposed between the first contact unit and the second contact unit, in which a portion of the contactor between the one end and the other end is continuously formed, and the contactor includes a pusher unit which is formed by being bent upward so that an intermediate portion thereof penetrates the opening and protrudes, and a reinforcement bead which is formed on a surface of the contactor, thereby preventing deformation in the contactor and enhancing durability.Type: ApplicationFiled: October 31, 2013Publication date: October 22, 2015Applicant: DAE DONG CO., LTD.Inventors: Dong Pil Byoen, Ki Won Seo
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Patent number: 8786353Abstract: A multi-channel semiconductor device comprises a plurality of buffer groups each comprising at least one output buffer, a plurality of pad groups each comprising at least one output pad, and a channel switching portion that controls connection between the plurality of buffer groups and the plurality of pad groups. One of the pad groups outputs an output signal of one of the buffer groups in a first operation mode and sequentially outputs output signals of all of the buffer groups in a second operation mode.Type: GrantFiled: November 25, 2011Date of Patent: July 22, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Jae-wook Kwon, Chang-ho An, Ki-won Seo, Sung-ho Lee
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Patent number: 8618985Abstract: A patch antenna for receiving high frequency wireless signal and a rectenna using the same, more particularly, an impedance-matched patch antenna adopting a slot capacitive coupling structure and a rectenna capable of generating electrical energy from the wireless signals having different frequency band. A rectenna for receiving an A.C. wireless signal carrying electrical energy and converting the wireless signal into a D.C. electrical energy, is comprised of: a patch antenna for receiving the wireless signal comprising an dielectric substrate, a patch that is formed at the upper area of the surface of the dielectric substrate and providing the first frequency response characteristics, a ground plane formed on the other surface of the dielectric substrate, and an impedance matching means providing the second frequency response characteristics; and a rectifying unit that converts the wireless signal, received via the patch antenna, into a D.C. electrical energy by rectifying the wireless signal.Type: GrantFiled: April 13, 2010Date of Patent: December 31, 2013Assignee: Kookmin University Industry Academy Cooperation FoundationInventors: Jun-seok Park, Ha-Ryoung Oh, Yeong-Rak Seong, Hyoung-Hwan Roh, Ki-won Seo
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Patent number: 8466909Abstract: An output buffer having a high slew rate, a method of controlling the output buffer, and a display driving device including the output buffer. The output buffer includes: a first output buffer adapted to output a source line driving signal to a first output terminal in response to a first control signal and output a source driving signal to a second output terminal in response to a second control signal; a second output buffer adapted to output a source line driving signal to a third output terminal in response to the first control signal and output a source line driving signal to a fourth output terminal in response to the second control signal; and a feedback circuit for connecting the first through fourth output terminals to negative input terminals of the first and second output buffers in response to the first control signal and the second control signal.Type: GrantFiled: November 8, 2010Date of Patent: June 18, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Chang-ho An, Jae-wook Kwon, Ki-won Seo, Sung-ho Lee
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Patent number: 8443622Abstract: An air conditioner includes a case provided with openings, a heat exchanger disposed in the case, one or more fans disposed in the case, and a variation unit that is movably disposed around the fans to vary air inlet and outlet directions.Type: GrantFiled: May 18, 2007Date of Patent: May 21, 2013Assignee: LG Electronics Inc.Inventors: Jung-Hoon Kim, Dong-Soo Moon, Ki-Won Seo, Deok Huh
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Patent number: 8230695Abstract: Provided is an indoor unit of an air conditioner. The structures of the indoor unit, such as the relationship between an inlet and an outlet, the shape of a rear guide, and the relationship between the outlet and a vane, are improved. Therefore, the airflow of the indoor unit is stable, and the noise level of the indoor unit is low.Type: GrantFiled: May 18, 2007Date of Patent: July 31, 2012Assignee: LG Electronics Inc.Inventors: Jung-Hoon Kim, Dong-Soo Moon, Ki-Won Seo, Deok Huh
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Patent number: 8197181Abstract: A cross-flow fan that variably maintains a distance between a blade and a fluid flow guide by varying a height of an outer edge and an air conditioner having the cross-flow fan are provided. Therefore, a noise and a peak value of a spectrum between the blade and the outer edge can be reduced.Type: GrantFiled: August 12, 2008Date of Patent: June 12, 2012Assignee: LG Electronics Inc.Inventors: Jeong Taek Park, Ki Won Seo, Deok Huh
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Publication number: 20120127386Abstract: A multi-channel semiconductor device comprises a plurality of buffer groups each comprising at least one output buffer, a plurality of pad groups each comprising at least one output pad, and a channel switching portion that controls connection between the plurality of buffer groups and the plurality of pad groups. One of the pad groups outputs an output signal of one of the buffer groups in a first operation mode and sequentially outputs output signals of all of the buffer groups in a second operation mode.Type: ApplicationFiled: November 25, 2011Publication date: May 24, 2012Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jae-wook Kwon, Chang-ho An, Ki-won Seo, Sung-ho Lee
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Patent number: 8054280Abstract: A display apparatus including a display driver. The data driver includes a converter to receive and convert image data in digital form into data voltages in analog form, and to provide the data voltages to output buffers. The output buffers receive and buffer the data voltages based on bias voltages generated as part of a feedback path between a bias voltage control circuit and the output buffers. The data voltages are provided to a display part. Before the data voltages output from the output buffers are provided to the display part, the bias voltage control part receives data voltage from the output buffers to count a slew rate of the data voltage, and varies the voltage level of the bias voltage based on the counted result of the slew rate, thereby providing feedback to the output buffers. Accordingly, differences of the slew rate between the data voltages output from the output buffers may be decreased.Type: GrantFiled: April 24, 2008Date of Patent: November 8, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Sung-Pil Choi, Do-Youn Kim, Jae-Wook Kwon, Ki-Won Seo
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Publication number: 20110242863Abstract: A patch antenna for receiving high frequency wireless signal and a rectenna using the same, more particularly, an impedance-matched patch antenna adopting a slot capacitive coupling structure and a rectenna capable of generating electrical energy from the wireless signals having different frequency band. A rectenna for receiving an A.C. wireless signal carrying electrical energy and converting the wireless signal into a D.C. electrical energy, is comprised of: a patch antenna for receiving the wireless signal comprising an dielectric substrate, a patch that is formed at the upper area of the surface of the dielectric substrate and providing the first frequency response characteristics, a ground plane formed on the other surface of the dielectric substrate, and an impedance matching means providing the second frequency response characteristics; and a rectifying unit that converts the wireless signal, received via the patch antenna, into a D.C. electrical energy by rectifying the wireless signal.Type: ApplicationFiled: April 13, 2010Publication date: October 6, 2011Applicant: Kookmin University Industry Academy Cooperation FoundationInventors: Jun-seok PARK, Ha-Ryoung OH, Yeong-Rak SEONG, Hyoung-Hwan ROH, Ki-won SEO
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Publication number: 20110148893Abstract: An output buffer having a high slew rate, a method of controlling the output buffer, and a display driving device including the output buffer.Type: ApplicationFiled: November 8, 2010Publication date: June 23, 2011Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Chang-ho AN, Jae-wook KWON, Ki-won SEO, Sung-ho LEE
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Publication number: 20100164924Abstract: A bias control circuit includes a counter unit, a decoder, a level shifter, and a bias block. The bias control circuit provides plurality bits of first signal indicating information on a plurality of groups based on a number of scanning lines and a number of groups. The decoder decodes the first signal to provide plurality bits of second signal. The level shifter shifts a voltage level of the second signal to provide a bias resistor selection signal. The bias block provides respective bias voltages to the corresponding respective groups by respective resistances being selected in response to the bias resistor selection signal.Type: ApplicationFiled: December 15, 2009Publication date: July 1, 2010Inventors: Ki-Won Seo, Do-Yoon Kim, Jae-Wook Kwon, Sung-Pil Choi
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Publication number: 20100134471Abstract: An output driving circuit is provided that may reduce power consumption by decreasing static current leakage in a liquid crystal display device. The output driving circuit of an output buffer of a source driver integrated circuit may include: an output driving unit including a pull-up transistor and a pull-down transistor coupled to a source line driving signal output terminal; and a sub output driving unit configured to perform an output driving operation together with the output driving unit during a normal operation period of an active horizontal synchronization signal and configured to be disabled during a period in which the horizontal synchronization signal is inactive in response to a control signal, in order to reduce static current leakage flowing through the output driving circuit. Current leakage is reduced in the inactive period of a horizontal synchronization signal in an output driving circuit, thereby reducing power consumption of a liquid crystal display device.Type: ApplicationFiled: November 20, 2009Publication date: June 3, 2010Inventors: Ki-Won Seo, Jae-Wook Kwon, Do-Yun Kim, Sung-Pil Choi
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Publication number: 20100132393Abstract: Provided is an indoor unit of an air conditioner. The structures of the indoor unit, such as the relationship between an inlet and an outlet, the shape of a rear guide, and the relationship between the outlet and a vane, are improved. Therefore, the airflow of the indoor unit is stable, and the noise level of the indoor unit is low.Type: ApplicationFiled: May 18, 2007Publication date: June 3, 2010Applicant: LG ELECTRONICS INC.Inventors: Jung-Hoon Kim, Dong-Soo Moon, Ki-Won Seo, Deok Huh
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Publication number: 20100126206Abstract: An indoor unit for an air conditioning apparatus is provided. The indoor unit includes a cross flow fan having a structure that can reduce noise and flow resistance of air passing through a heat exchanger in the indoor unit.Type: ApplicationFiled: October 20, 2009Publication date: May 27, 2010Inventors: Jeong Taek Park, Deok Huh, Ki Won Seo
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Patent number: D613992Type: GrantFiled: July 22, 2009Date of Patent: April 20, 2010Assignee: Seowon Pallas Inc.Inventor: Ki Won Seo