Patents by Inventor Seung-Hwan Yi
Seung-Hwan Yi 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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Patent number: 12002790Abstract: A pixel includes a first electrode and a second electrode facing each other, an insulating layer on the first and second electrodes, a plurality of light-emitting elements located on the insulating layer between the first electrode and the second electrode, a first contact electrode electrically connected to the first electrode, and a second contact electrode electrically connected to the second electrode. Here, a first gap having a constant width in a first direction and a second gap having a width in the first direction that gradually changes along a second direction are located between the first electrode and the second electrode or between the first contact electrode and the second contact electrode.Type: GrantFiled: March 23, 2021Date of Patent: June 4, 2024Assignee: Samsung Display Co., Ltd.Inventors: Hee Keun Lee, Jin Taek Kim, Seung Min Lee, Jung Hwan Yi, Baek Hyeon Lim, Kyung Tae Chae
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Publication number: 20240144871Abstract: A display device, includes: a display area and a non-display area; a plurality of signal lines over the display area; and a plurality of connection lines in the display area and connected to the signal lines, wherein the plurality of connection lines includes a plurality of first connection lines connected to the signal lines, respectively, a plurality of third connection lines on a same layer as the first connection lines, and a plurality of second connection lines connecting the first connection lines to the third connection lines.Type: ApplicationFiled: January 8, 2024Publication date: May 2, 2024Inventors: Seung Hwan CHO, Jong Hyun CHOI, Ju Chan PARK, Seung Min SONG, Min Seong YI
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Patent number: 11945744Abstract: Disclosed are a method and apparatus for reusing wastewater. The method for reusing wastewater disclosed herein includes: generating a mixed wastewater by mixing multiple types of wastewater (S20); performing a first purification by passing the mixed wastewater through a flocculation-sedimentation unit (S40); performing a second purification by passing an effluent of the flocculation-sedimentation unit through a membrane bioreactor (MBR) (S60); performing a third purification by passing an effluent of the MBR through a reverse-osmosis membrane unit (S80); and reusing an effluent of the reverse-osmosis membrane unit as cooling water or industrial water (S100).Type: GrantFiled: April 14, 2023Date of Patent: April 2, 2024Assignees: SAMSUNG ENGINEERING CO., LTD., SAMSUNG ELECTRONICS CO., LTDInventors: Seok Hwan Hong, Dae Soo Park, Seung Joon Chung, Yong Xun Jin, Jae Hyung Park, Jae Hoon Choi, Jae Dong Hwang, Jong Keun Yi, Su Hyoung Cho, Kyu Won Hwang, June Yurl Hur, Je Hun Kim, Ji Won Chun
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Publication number: 20240097466Abstract: Disclosed is a high voltage output device having a serial-parallel stack structure of capacitors. The high voltage output device includes a substrate includes a capacitor element and a pillar structure provided on an upper surface of the substrate. The substrate includes a first electrode and a second electrode, which have different potentials from each other. The capacitor element is connected to at least one of the first electrode and the second electrode.Type: ApplicationFiled: November 16, 2023Publication date: March 21, 2024Applicant: JEISYS MEDICAL INC.Inventors: Seung Wook LEE, Seung In KANG, Yeong Gi JEON, Si Youn KIM, Kyu Young SEO, Min Young KIM, Won Ju YI, Dong Hwan KANG
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Publication number: 20220347061Abstract: One aspect of the present disclosure is an organic/inorganic composite powder and a composition including the same in which a coating film on a surface of an inorganic powder is not easily fall off under various conditions such as pH, temperature, physical force, etc., so that has excellent moisture retention and less transferring and allows for natural makeup.Type: ApplicationFiled: April 21, 2022Publication date: November 3, 2022Applicant: AMOREPACIFIC CORPORATIONInventors: Jaewon YOU, Jijung LEE, Seung Hwan YI, Hajin JUNG, Wonseok PARK, Heungsoo BAEK
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Publication number: 20200113795Abstract: One aspect of the present disclosure relates to a cosmetic composition including an inorganic powder; at least one stabilizer selected from the group consisting of a metal dispersing agent, an anionic surfactant and a pH adjusting agent; and a functional active component. According to the cosmetic composition according to one aspect of the present disclosure, while maintaining the dispersion stability and even distribution in the skin, it is possible to prevent the functional active components from adsorbing on the inorganic powder.Type: ApplicationFiled: June 29, 2018Publication date: April 16, 2020Applicant: AMOREPACIFIC CORPORATIONInventors: Seung-Hwan YI, So Mi LEE
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Patent number: 9480632Abstract: The present invention relates to a cosmetic composition comprising: (i) boron nitride; and (ii) one or more kinds of inorganic powders selected from the group consisting of cerium oxide, titanium oxide, talc, aluminum oxide, iron oxide, zinc oxide and mica. UVA, UVB and near-IR may be simultaneously screened by applying the cosmetic composition.Type: GrantFiled: August 7, 2014Date of Patent: November 1, 2016Assignee: AMOREPACIFIC CORPORATIONInventors: Seung Hwan Yi, Min Kyung Sim, Yeung Jin Choi, Taek Jin Oh, Jin Tae Han
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Publication number: 20140348888Abstract: The present invention relates to a cosmetic composition comprising: (i) boron nitride; and (ii) one or more kinds of inorganic powders selected from the group consisting of cerium oxide, titanium oxide, talc, aluminum oxide, iron oxide, zinc oxide and mica. UVA, UVB and near-IR may be simultaneously screened by applying the cosmetic composition.Type: ApplicationFiled: August 7, 2014Publication date: November 27, 2014Applicant: AMOREPACIFIC CORPORATIONInventors: Seung Hwan Yi, Min Kyung Sim, Yeung Jin Choi, Taek Jin Oh, Jin Tae Han
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Publication number: 20120231058Abstract: The present invention relates to a cosmetic composition comprising: (i) boron nitride; and (ii) one or more kinds of inorganic powders selected from the group consisting of cerium oxide, titanium oxide, talc, aluminum oxide, iron oxide, zinc oxide and mica. UVA, UVB and near-IR may be simultaneously screened by applying the cosmetic composition.Type: ApplicationFiled: November 19, 2010Publication date: September 13, 2012Applicant: AMOREPACIFIC CORPORATIONInventors: Seung Hwan Yi, Min Kyung Kim, Yeung Jin Choi, Taek Jin Oh, Jin Tae Han
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Publication number: 20090284745Abstract: Disclosed are an optical cavity and a gas cell fabricated by using the same. The optical cavity is the most important element of the gas cell, which measures density of gas using light absorption characteristics of the gas. The gas cell includes two quadratic parabolic concave mirrors, which share a focus and an optical axis. Light incident toward the focus is reflected from the two quadratic parabolic concave mirrors so that the light may travel in parallel to the optical axis and the light incident in parallel to the optical axis may pass through the focus while being reflected from the two quadratic parabolic concave mirrors. The optical cavity includes two quadratic parabolic concave mirrors, which are aligned in opposition to each other with different focus lengths such that they share the focus using the reflection characteristics thereof.Type: ApplicationFiled: October 11, 2004Publication date: November 19, 2009Inventors: Seung-Hwan Yi, Jeong-Ik Park
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Patent number: 7449694Abstract: A unique optical cavity for NDIR gas sensor module and test results for the CO2 concentration from 100 ppm to 2,000 ppm are disclosed. The proposed sensor module shows the maximum peak voltage at 500 ms pulse duration, however, it has a maximum fractional voltage changes at 200 ms pulse duration with 18,000 times amplification gain. From 100 ppm to 2,000 ppm, the voltage difference of sensor module (V) is 200 mV at 200 ms pulse duration and 3 sec. turn-off time.Type: GrantFiled: December 10, 2004Date of Patent: November 11, 2008Assignee: Elt Inc.Inventors: Seung-Hwan Yi, Jeong-Ik Park, Ji-Hyun Kang
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Publication number: 20070279633Abstract: A unique optical cavity for NDIR gas sensor module and test results for the CO2 concentration from 100 ppm to 2,000 ppm are disclosed. The proposed sensor module shows the maximum peak voltage at 500 ms pulse duration, however, it has a maximum fractional voltage changes at 200 ms pulse duration with 18,000 times amplification gain. From 100 ppm to 2,000 ppm, the voltage difference of sensor module (V) is 200 mV at 200 ms pulse duration and 3 sec. turn-off time.Type: ApplicationFiled: December 10, 2004Publication date: December 6, 2007Applicant: ELT INC.Inventors: Seung-Hwan Yi, Jeong-Ik Park, Ji-Hyun Kang
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Patent number: 7089638Abstract: A micromachined piezoelectric microspeaker and its fabricating method are disclosed. The micromachined piezoelectric microspeaker comprises a diaphragm and a plurality of contact pads. The diaphragm comprises an active area which is flat, and a non-active area which is wrinkled and surrounds the active area. The plurality of contact pads for electrodes are located outside of the diaphragm and over a wafer.Type: GrantFiled: July 27, 2004Date of Patent: August 15, 2006Inventors: Seung-Hwan Yi, Eun-Sok Kim
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Patent number: 7003125Abstract: A micromachined piezoelectric microspeaker and its fabricating method are disclosed. The micromachined piezoelectric microspeaker comprises a diaphragm and a plurality of contact pads. The diaphragm comprises an active area which is flat, and a non-active area which is wrinkled and surrounds the active area. The plurality of contact pads for electrodes are located outside of the diaphragm and over a wafer.Type: GrantFiled: September 12, 2002Date of Patent: February 21, 2006Inventors: Seung-Hwan Yi, Eun-Sok Kim
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Publication number: 20050005429Abstract: A micromachined piezoelectric microspeaker and its fabricating method are disclosed. The micromachined piezoelectric microspeaker comprises a diaphragm and a plurality of contact pads. The diaphragm comprises an active area which is flat, and a non-active area which is wrinkled and surrounds the active area. The plurality of contact pads for electrodes are located outside of the diaphragm and over a wafer.Type: ApplicationFiled: July 27, 2004Publication date: January 13, 2005Inventors: Seung-Hwan Yi, Eun-Sok Kim
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Publication number: 20030048914Abstract: A micromachined piezoelectric microspeaker and its fabricating method are disclosed. The micromachined piezoelectric microspeaker comprises a diaphragm and a plurality of contact pads. The diaphragm comprises an active area which is flat, and a non-active area which is wrinkled and surrounds the active area. The plurality of contact pads for electrodes are located outside of the diaphragm and over a wafer.Type: ApplicationFiled: September 12, 2002Publication date: March 13, 2003Inventors: Seung-Hwan Yi, Eun-Sok Kim