Patents by Inventor Chi-hoon Lee
Chi-hoon Lee 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: 20240147845Abstract: The present disclosure relates to an organic electroluminescent device. The organic electroluminescent device of the present disclosure shows high luminous efficiency and good lifespan by comprising a specific combination of the plural kinds of host compounds and a specific hole transport compound.Type: ApplicationFiled: December 6, 2023Publication date: May 2, 2024Inventors: Kyoung-Jin PARK, Tae-Jin LEE, Jae-Hoon SHIM, Yoo Jin DOH, Hee-Choon AHN, Young-Kwang KIM, Doo-Hyeon MOON, Jeong-Eun YANG, Su-Hyun LEE, Chi-Sik KIM, Ji-Song JUN
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Publication number: 20240090328Abstract: The present invention relates to a multi-component host material and an organic electroluminescent device comprising the same. By comprising a specific combination of the multi-component host compounds, the organic electroluminescent device according to the present invention can provide high luminous efficiency and excellent lifespan characteristics.Type: ApplicationFiled: October 26, 2023Publication date: March 14, 2024Inventors: Hee-Choon AHN, Young-Kwang KIM, Su-Hyun LEE, Ji-Song JUN, Seon-Woo LEE, Chi-Sik KIM, Kyoung-Jin PARK, Nam-Kyun KIM, Kyung-Hoon CHOI, Jae-Hoon SHIM, Young-Jun CHO, Kyung-Joo LEE
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Publication number: 20240067618Abstract: The present disclosure relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. The organic electroluminescent compound of the present disclosure may be comprised in a light-emitting layer, and is effective for producing an organic electroluminescent device having high luminescent efficiency and/or excellent lifespan characteristic.Type: ApplicationFiled: October 24, 2023Publication date: February 29, 2024Inventors: Chi-Sik KIM, Soo-Yong LEE, Seung-Hoon YOO, Dong-Hyung LEE
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Patent number: 11917907Abstract: The present disclosure relates to an organic electroluminescent device. The organic electroluminescent device of the present disclosure shows high luminous efficiency and good lifespan by comprising a specific combination of the plural kinds of host compounds and a specific hole transport compound.Type: GrantFiled: November 22, 2021Date of Patent: February 27, 2024Assignee: Rohm and Haas Electronic Materials Korea Ltd.Inventors: Kyoung-Jin Park, Tae-Jin Lee, Jae-Hoon Shim, Yoo Jin Doh, Hee-Choon Ahn, Young-Kwang Kim, Doo-Hyeon Moon, Jeong-Eun Yang, Su-Hyun Lee, Chi-Sik Kim, Ji-Song Jun
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Patent number: 11760152Abstract: A Coupled Torsion Beam Axle (CTBA) bush may include an axial stiffness control portion which forms a cross section of a bush pipe 3 in a cross-sectional structure of additionally securing a gap, the bush pipe generating a rotation against an external load so that lateral stiffness performance and lateral steer performance are enhanced together; and a front and rear stiffness control portion which forms a bush mass in an X-shaped asymmetric bridge structure, the bush mass forming the bush pipe as an external diameter and forming a bush core as an internal diameter so that handling performance and ride comfort performance are enhanced together.Type: GrantFiled: July 15, 2020Date of Patent: September 19, 2023Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Shin-Ah Nam, Young-Kyoon Shin, Min-Soo Kang, Back-Gon Ko, Sung-Il Kim, Chi-Hoon Lee
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Patent number: 11494642Abstract: A thickness prediction network learning method includes measuring spectrums of optical characteristics of a plurality of semiconductor structures each including a substrate and first and second semiconductor material layers alternately stacked thereon to generate sets of spectrum measurement data, measuring thicknesses of the first and second semiconductor material layers to generate sets of thickness data, training a simulation network using the sets of spectrum measurement data and the sets of thickness data, generating sets of spectrum simulation data of spectrums of the optical characteristics of a plurality of virtual semiconductor structures based on thicknesses of first and second virtual semiconductor material layers using the simulation network, each of the first and second virtual semiconductor layers including the same material as the first and second semiconductor material layers, respectively; and training a thickness prediction network by using the sets of spectrum measurement data and the setsType: GrantFiled: November 8, 2019Date of Patent: November 8, 2022Assignees: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and TechnologyInventors: Su-il Cho, Sung-yoon Ryu, Yu-sin Yang, Chi-hoon Lee, Hyun-su Kwak, Jung-won Kim
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Patent number: 11240404Abstract: In one embodiment, a method includes, by a computing device of a first sensor receiving synchronization information from a controller. The synchronization information being generated based on a clock of the controller. The method also includes determining, based on the synchronization information, a first offset between a first clock of the first sensor and the clock of the controller; storing the first offset; and synchronizing, based on the stored first offset and the first clock of the first sensor, a first data capture by the first sensor with a second data capture by a second sensor. The first data capture and the second data capture being requested by the controller.Type: GrantFiled: March 11, 2021Date of Patent: February 1, 2022Assignee: Woven Planet North America, Inc.Inventors: Corey Frederick Bangs, Forrest Samuel Briggs, George James Hansel, James Allen-White Hoffacker, Dhruv Lamba, Chi Hoon Lee, Yi Lu, Brian Thomas McGinn, Phillip Sawbridge
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Publication number: 20210276391Abstract: A Coupled Torsion Beam Axle (CTBA) bush may include an axial stiffness control portion which forms a cross section of a bush pipe 3 in a cross-sectional structure of additionally securing a gap, the bush pipe generating a rotation against an external load so that lateral stiffness performance and lateral steer performance are enhanced together; and a front and rear stiffness control portion which forms a bush mass in an X-shaped asymmetric bridge structure, the bush mass forming the bush pipe as an external diameter and forming a bush core as an internal diameter so that handling performance and ride comfort performance are enhanced together.Type: ApplicationFiled: July 15, 2020Publication date: September 9, 2021Applicants: Hyundai Motor Company, Kia Motors CorporationInventors: Shin-Ah Nam, Young-Kyoon Shin, Min-Soo Kang, Back-Gon Ko, Sung-Il Kim, Chi-Hoon Lee
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Publication number: 20210274064Abstract: In one embodiment, a method includes, by a computing device of a first sensor receiving synchronization information from a controller. The synchronization information being generated based on a clock of the controller. The method also includes determining, based on the synchronization information, a first offset between a first clock of the first sensor and the clock of the controller; storing the first offset; and synchronizing, based on the stored first offset and the first clock of the first sensor, a first data capture by the first sensor with a second data capture by a second sensor. The first data capture and the second data capture being requested by the controller.Type: ApplicationFiled: March 11, 2021Publication date: September 2, 2021Inventors: Corey Frederick Bangs, Forrest Samuel Briggs, George James Hansel, James Allen-White Hoffacker, Dhruv Lamba, Chi Hoon Lee, Yi Lu, Brian Thomas McGinn, Phillip Sawbridge
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Patent number: 11073985Abstract: An electronic device includes a display configured to display at least one content, a pressure sensor configured to sense a touch input having a pressure value of a specified value or more, a memory, and a processor operatively connected to the display, the pressure sensor, and the memory. When the touch input occurs in a first screen of the display, the processor is configured to determine an input location of the touch input, to verify content displayed at a display location of the first screen corresponding to the input location, to create a widget including information associated with the content, and to output the created widget to a second screen of the display.Type: GrantFiled: June 14, 2017Date of Patent: July 27, 2021Inventors: Dong Jin Eun, Woo Hyun Kim, Hee Jin Kim, Seung Yong Lee, Chi Hoon Lee, Hae Na Lee, Jee Yeun Wang, Ah Young Kim, Hyun Seok Seo, Hyo Jin Bae, Wan Soo Lim, Hee Woon Kim, Sung Chan Bae, Jung Eui Seo
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Patent number: 10989520Abstract: A method for nondestructive measurement of an underlying layer thickness includes irradiating, with a pump laser pulse, a sample to induce generation of an acoustic wave in the sample such that the acoustic wave propagates through the sample over time, where the sample includes a substrate, an underlying layer on the substrate, and an overlying layer on the underlying layer and the underlying layer is isolated from an exterior of the sample by at least the overlying layer, irradiating the sample with a probe laser pulse after irradiating the sample with the pump laser pulse, determining a reflectance variation of the sample over time, based on monitoring a variation of a reflection of the probe laser pulse from the sample over time, to generate a first graph showing a variation of reflectance of the sample over time, and determining a thickness of the underlying layer based on the first graph.Type: GrantFiled: December 16, 2019Date of Patent: April 27, 2021Assignee: Samsung Electronics Co., Ltd.Inventors: Duck-mahn Oh, Jong-an Kim, Si-hyeon Choi, Young-hoon Sohn, Yu-sin Yang, Chi-hoon Lee
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Patent number: 10972637Abstract: In one embodiment, a method includes, by a computing device of a first sensor receiving synchronization information from a controller. The synchronization information being generated based on a clock of the controller. The method also includes determining, based on the synchronization information, a first offset between a first clock of the first sensor and the clock of the controller; storing the first offset; and synchronizing, based on the stored first offset and the first clock of the first sensor, a first data capture by the first sensor with a second data capture by a second sensor. The first data capture and the second data capture being requested by the controller.Type: GrantFiled: March 11, 2019Date of Patent: April 6, 2021Assignee: Lyft, Inc.Inventors: Corey Frederick Bangs, Forrest Samuel Briggs, George James Hansel, James Allen-White Hoffacker, Dhruv Lamba, Chi Hoon Lee, Yi Lu, Brian Thomas McGinn, Phillip Sawbridge
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Apparatus for X-ray inspection, and a method for manufacturing a semiconductor device using the same
Patent number: 10852259Abstract: An apparatus for X-ray inspection is provided. The apparatus includes: a stage on which an inspection target is loaded, the stage including a first surface and an opposite second surface; an X-ray generator disposed on or over the first surface of the inspection target and configured to irradiate the inspection target with incident X-rays; and a detection system disposed on or under the second surface of the inspection target and configured to detect first transmitted X-rays transmitted through the inspection target. The detection unit includes a first lens system and a second lens system. The first transmitted X-rays pass through one of the first lens system and the second lens system. The second lens system includes a micro zone plate.Type: GrantFiled: August 29, 2018Date of Patent: December 1, 2020Inventors: Kyoung Hwan Lee, Sang Min Kim, Young Hoon Sohn, Yu Sin Yang, Chi Hoon Lee -
Publication number: 20200319794Abstract: An electronic device includes a display configured to display at least one content, a pressure sensor configured to sense a touch input having a pressure value of a specified value or more, a memory, and a processor operatively connected to the display, the pressure sensor, and the memory. When the touch input occurs in a first screen of the display, the processor is configured to determine an input location of the touch input, to verify content displayed at a display location of the first screen corresponding to the input location, to create a widget including information associated with the content, and to output the created widget to a second screen of the display.Type: ApplicationFiled: June 14, 2017Publication date: October 8, 2020Inventors: Dong Jin EUN, Woo Hyun KIM, Hee Jin KIM, Seung Yong LEE, Chi Hoon LEE, Hae Na LEE, Jee Yeun WANG, Ah Young KIM, Hyun Seok SEO, Hyo Jin BAE, Wan Soo LIM, Hee Woon KIM, Sung Chan BAE, Jung Eui SEO
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Publication number: 20200208964Abstract: A method for nondestructive measurement of an underlying layer thickness includes irradiating, with a pump laser pulse, a sample to induce generation of an acoustic wave in the sample such that the acoustic wave propagates through the sample over time, where the sample includes a substrate, an underlying layer on the substrate, and an overlying layer on the underlying layer and the underlying layer is isolated from an exterior of the sample by at least the overlying layer, irradiating the sample with a probe laser pulse after irradiating the sample with the pump laser pulse, determining a reflectance variation of the sample over time, based on monitoring a variation of a reflection of the probe laser pulse from the sample over time, to generate a first graph showing a variation of reflectance of the sample over time, and determining a thickness of the underlying layer based on the first graph.Type: ApplicationFiled: December 16, 2019Publication date: July 2, 2020Applicant: Samsung Electronics Co., Ltd.Inventors: Duck-mahn OH, Jong-an Kim, Si-hyeon Choi, Young-hoon Sohn, Yu-sin Yang, Chi-hoon Lee
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Publication number: 20200193290Abstract: A thickness prediction network learning method includes measuring spectrums of optical characteristics of a plurality of semiconductor structures each including a substrate and first and second semiconductor material layers alternately stacked thereon to generate sets of spectrum measurement data, measuring thicknesses of the first and second semiconductor material layers to generate sets of thickness data, training a simulation network using the sets of spectrum measurement data and the sets of thickness data, generating sets of spectrum simulation data of spectrums of the optical characteristics of a plurality of virtual semiconductor structures based on thicknesses of first and second virtual semiconductor material layers using the simulation network, each of the first and second virtual semiconductor layers including the same material as the first and second semiconductor material layers, respectively; and training a thickness prediction network by using the sets of spectrum measurement data and the setsType: ApplicationFiled: November 8, 2019Publication date: June 18, 2020Applicant: Korea Advanced Institute of Science and TechnologyInventors: Su-il CHO, Sung-yoon RYU, Yu-sin YANG, Chi-hoon LEE, Hyun-su KWAK, Jung-won KIM
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Patent number: 10613724Abstract: An electronic device is provided. The electronic device includes a display, a memory, and a processor configured to be electrically connected with the display and the memory. The processor is configured to display first content on a first screen region of the display, obtain at least a partial region of the first content as a copy region in response to a user input associated with a copy, display at least part of data corresponding to the copy region as second content on the display, and maintain a state of a second screen region which displays the second content is displayed while the first content is changed to another content.Type: GrantFiled: August 16, 2017Date of Patent: April 7, 2020Assignee: Samsung Electronics Co., Ltd.Inventors: Dong Jin Eun, Sang Hyuk Koh, Chang Hwan Kim, Heung Kyo Seo, Chi Hoon Lee, Jung Eui Seo
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Publication number: 20190289172Abstract: In one embodiment, a method includes, by a computing device of a first sensor receiving synchronization information from a controller. The synchronization information being generated based on a clock of the controller. The method also includes determining, based on the synchronization information, a first offset between a first clock of the first sensor and the clock of the controller; storing the first offset; and synchronizing, based on the stored first offset and the first clock of the first sensor, a first data capture by the first sensor with a second data capture by a second sensor. The first data capture and the second data capture being requested by the controller.Type: ApplicationFiled: March 11, 2019Publication date: September 19, 2019Inventors: Corey Frederick Bangs, Forrest Samuel Briggs, George James Hansel, James Allen-White Hoffacker, Dhruv Lamba, Chi Hoon Lee, Yi Lu, Brian Thomas McGinn, Phillip Sawbridge
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APPARATUS FOR X-RAY INSPECTION, AND A METHOD FOR MANUFACTURING A SEMICONDUCTOR DEVICE USING THE SAME
Publication number: 20190187077Abstract: An apparatus for X-ray inspection is provided. The apparatus includes: a stage on which an inspection target is loaded, the stage including a first surface and an opposite second surface; an X-ray generator disposed on or over the first surface of the inspection target and configured to irradiate the inspection target with incident X-rays; and a detection system disposed on or under the second surface of the inspection target and configured to detect first transmitted X-rays transmitted through the inspection target. The detection unit includes a first lens system and a second lens system. The first transmitted X-rays pass through one of the first lens system and the second lens system. The second lens system includes a micro zone plate.Type: ApplicationFiled: August 29, 2018Publication date: June 20, 2019Inventors: Kyoung Hwan Lee, Sang Min KIM, Young Hoon SOHN, Yu Sin YANG, Chi Hoon LEE -
Patent number: 10210243Abstract: Method, system, and programs for providing enhanced query term suggestions. Candidate query terms may be obtained based on a prefix of incomplete query terms received. The candidate query terms may be ranked, at least partially based on, their similarities with respect to query terms previously entered in the same search session as the incomplete query term. In some implementations, for determining such similarities, feature vectors and/or signatures may be stored in association with query terms. Similarity between a candidate query term and query terms in the same search session as the incomplete query term may be determined using the feature vectors and/or signatures associated therewith.Type: GrantFiled: August 23, 2017Date of Patent: February 19, 2019Assignee: EXCALIBUR IP, LLCInventors: Hang Su, Chi Hoon Lee