Patents by Inventor Sang-Un Choi
Sang-Un 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: 20250065360Abstract: A control device and a substrate processing apparatus including the same are provided. The substrate processing apparatus includes: a support unit including a spin head and configured to support and to rotate a substrate; a spraying unit configured to spray processing liquid onto the substrate; a correction unit in a swing arm, the correction unit configured to move to a target point on the substrate and to irradiate a beam when the processing liquid is sprayed onto the substrate; and a control unit configured to calculate the target point, wherein the control unit is configured to convert image coordinates associated with a first coordinate system and then to calculate the target point by converting the image coordinates associated with the first coordinate system into image coordinates associated with a second coordinate system, and the second coordinate system is based on rotation angles of the spin head and the swing arm.Type: ApplicationFiled: July 10, 2024Publication date: February 27, 2025Inventors: Jin Yeong Sung, Ki Hoon Choi, Seung Un Oh, Young Ho Park, Sang Hyeon Ryu, Jang Jin Lee, Hyun Yoon, Sang Gun Lee, Yu Jin Cho, Ho Jong Hwang, Jong Ju Park, Jong Keun Oh, Yong Woo Kim
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Patent number: 12090821Abstract: A system such as a vehicle, building, or electronic device system may have a support structure with one or more windows. The support structure and window may separate an interior region within the system from a surrounding exterior region. Control circuitry may receive input such as user input and may adjust an adjustable layer in the window based on the input. The adjustable layer may be an adjustable light transmission layer. The adjustable light transmission layer may have a polymer matrix layer with embedded guest-host liquid crystal cells. Each cell may have liquid crystal material and dichroic dye. The adjustable light transmission layer may be operated in a dark state to prevent light from passing through the window, a clear state in which the window passes light, and intermediate states that exhibit intermediate light transmission levels.Type: GrantFiled: June 30, 2021Date of Patent: September 17, 2024Assignee: Apple Inc.Inventors: Yuan Chen, Falu Yang, Haiqing Xianyu, Peter F. Masschelein, Sang Un Choi, Xiaokai Li, Yunseok Lee, Zhibing Ge
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Patent number: 11693279Abstract: A system may have windows. The window may have first and second window layers and a layer of material such as guest-host liquid crystal material between the first and second window layers. Electrodes on the window layers may be used to apply electric fields to the guest-host liquid crystal material to adjust the light transmission properties of the window. To ensure that a desired gap between the first and second window layers is maintained, spacers may be formed between the first and second window layers. The spacers may include key-and-lock spacers that have interlocking portions located, respectively, on the first and second window layers. Spacers such as photoresist posts can be attached using adhesive. Hybrid arrangements may also be used in which key-and-lock spacer structures are attached using adhesive bonds.Type: GrantFiled: March 1, 2022Date of Patent: July 4, 2023Assignee: Apple Inc.Inventors: Yunseok Lee, Haiqing Xianyu, Junhwan Lim, Peter F Masschelein, Sang Un Choi, Xiaokai Li, Yuan Chen, Zhibing Ge
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Patent number: 11192878Abstract: The present disclosure relates to a novel piperidine-2,6-dione derivative and a use thereof and, more specifically, to a piperidine-2,6-dione derivative compound having a structure of a thalidomide analog. A compound of chemical formula 1 according to the present disclosure specifically binds with CRBN protein, and is involved in functions thereof. Therefore, the compound of the present disclosure can be favorably used in the prevention or treatment of leprosy, chronic graft versus host disease, an inflammatory disease, or cancer, which are caused by actions of CRBN protein.Type: GrantFiled: May 11, 2018Date of Patent: December 7, 2021Assignee: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGYInventors: Jong Yeon Hwang, Jae Du Ha, Sung Yun Cho, Pil Ho Kim, Chang Soo Yun, Chi Hoon Park, Chong Ock Lee, Sang Un Choi, Joo Youn Lee, Sunjoo Ahn
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Patent number: 11105677Abstract: An electronic device may be provided with a display. An optical component window may be formed in the inactive area of the display. The optical component window may transmit infrared light from an infrared light source. The infrared light source may include a diffuser to allow the light source to operate in a flood illumination mode and a structured light mode. The diffuser may include liquid crystal material between first and second substrates. A sealant may surround the liquid crystal layer, and one or more spacer walls may be located between the sealant and the liquid crystal layer. An additional spacer wall may be used outside of the sealant to prevent metal from creating an electrical short between electrodes in the diffuser. Conductive material in the sealant may be used to couple a top electrode to a metal pad on a bottom substrate.Type: GrantFiled: September 25, 2018Date of Patent: August 31, 2021Assignee: Apple Inc.Inventors: Junhwan Lim, Zhibing Ge, Christopher L. Boitnott, Shih-Wei Chang, Sang Un Choi, Sudirukkuge T. Jinasundera
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Patent number: 10690970Abstract: A liquid crystal display may have main column spacers and subspacer column spacers. The column spacers may have cross shapes formed from overlapping perpendicular rectangular column spacer portions respectively located on a color filter layer and a thin-film transistor layer. The column spacers may have a hybrid configuration in which some of the rectangular portions on the thin-film transistor layer extend vertically and some extend horizontally. Column spacers may be formed from planarization layer material, may be formed from locally thickened portions of a planarization layer, and may have circular shapes.Type: GrantFiled: September 8, 2016Date of Patent: June 23, 2020Assignee: Apple Inc.Inventors: Chia Hsuan Tai, Cheng Chen, Da Yu, Enkhamgalan Dorjgotov, Sang Un Choi, Shih-Chyuan Fan Jiang, Tae Woon Cha, Yeon Sik Ham, Yuan Chen, Zhibing Ge, Hossein Nemati
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Publication number: 20200062730Abstract: The present disclosure relates to a novel piperidine-2,6-dione derivative and a use thereof and, more specifically, to a piperidine-2,6-dione derivative compound having a structure of a thalidomide analog. A compound of chemical formula 1 according to the present disclosure specifically binds with CRBN protein, and is involved in functions thereof. Therefore, the compound of the present disclosure can be favorably used in the prevention or treatment of leprosy, chronic graft versus host disease, an inflammatory disease, or cancer, which are caused by actions of CRBN protein.Type: ApplicationFiled: May 11, 2018Publication date: February 27, 2020Inventors: Jong Yeon HWANG, Jae Du HA, Sung Yun CHO, Pil Ho KIM, Chang Soo YUN, Chi Hoon PARK, Chong Ock LEE, Sang Un CHOI, Joo Youn LEE, Sunjoo AHN
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Publication number: 20190137333Abstract: An electronic device may be provided with a display. An optical component window may be formed in the inactive area of the display. The optical component window may transmit infrared light from an infrared light source. The infrared light source may include a diffuser to allow the light source to operate in a flood illumination mode and a structured light mode. The diffuser may include liquid crystal material between first and second substrates. A sealant may surround the liquid crystal layer, and one or more spacer walls may be located between the sealant and the liquid crystal layer. An additional spacer wall may be used outside of the sealant to prevent metal from creating an electrical short between electrodes in the diffuser. Conductive material in the sealant may be used to couple a top electrode to a metal pad on a bottom substrate.Type: ApplicationFiled: September 25, 2018Publication date: May 9, 2019Inventors: Junhwan Lim, Zhibing Ge, Christopher L. Boitnott, Shih-Wei Chang, Sang Un Choi, Sudirukkuge T. Jinasundera
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Publication number: 20170293174Abstract: A liquid crystal display may have main column spacers and subspacer column spacers. The column spacers may have cross shapes formed from overlapping perpendicular rectangular column spacer portions respectively located on a color filter layer and a thin-film transistor layer. The column spacers may have a hybrid configuration in which some of the rectangular portions on the thin-film transistor layer extend vertically and some extend horizontally. Column spacers may be formed from planarization layer material, may be formed from locally thickened portions of a planarization layer, and may have circular shapes.Type: ApplicationFiled: September 8, 2016Publication date: October 12, 2017Inventors: Chia Hsuan Tai, Cheng Chen, Da Yu, Enkhamgalan Dorjgotov, Sang Un Choi, Shih-Chyuan Fan Jiang, Tae Woon Cha, Yeon Sik Ham, Yuan Chen, Zhibing Ge, Hossein Nemati
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Patent number: 9612470Abstract: A display may have a layer of liquid crystal material between a color filter layer and a thin-film transistor layer. Column spacer structures may be formed between the color filter layer and the thin-film transistor layer to maintain a desired separation between the color filter and thin-film transistor layers. Column spacers may be deposited in column spacer regions of the color filter layer. The color filter layer may include rows of red, green, and blue color filter elements. Blue color filter material that forms blue color filter elements in the color filter layer may also be used to form a planar surface over red and green color filter elements in the column spacer regions. Using the blue color filter material to planarize the surface on which column spacers are formed ensures that the column spacers provide sufficient support for the display without requiring an additional planarization layer.Type: GrantFiled: August 29, 2014Date of Patent: April 4, 2017Assignee: Apple Inc.Inventors: Sang Un Choi, Zhibing Ge, Shang-Chih Lin, Hiroshi Osawa, Ton-Yong Wang, Ming Xu
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Patent number: 9482905Abstract: A display may have a color filter layer and a thin-film transistor layer. A layer of liquid crystal material may be located between the color filter layer and the thin-film transistor layer. Column spacers may be formed on the color filter layer to maintain a desired gap between the color filter and thin-film transistor layers. Support pads may be used to support the column spacers. The column spacers and support pads may have comparable thicknesses. Different column spacers may be located at different portions of the support pads to allow the support pad size to be reduced while ensuring adequate support.Type: GrantFiled: June 18, 2014Date of Patent: November 1, 2016Assignee: Apple Inc.Inventors: Zhibing Ge, Yeon Sik Ham, Cheng Chen, Chia Hsuan Tai, Enkhamgalan Dorjgotov, Sang Un Choi, Shih-Chyuan Fan Jiang
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Patent number: 9403831Abstract: The present invention relates to a novel triazolopyrazine derivative or a pharmaceutically acceptable salt thereof, and a pharmaceutical composition containing the same as an active ingredient for preventing or treating hyper proliferative disorder. The present invention can be useful as a therapeutic agent for various hyper proliferative disorders associated with excessive cell proliferation and growth caused by abnormal kinase activity, such as cancer, psoriasis, rheumatoid arthritis, and diabetic retinopathy, by efficiently inhibiting c-Met tyrosine kinase activity.Type: GrantFiled: September 30, 2013Date of Patent: August 2, 2016Assignees: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY, HANDOK INC.Inventors: Hee Jung Jung, Jae Du Ha, Sung Yun Cho, Hyoung Rae Kim, Kwang Ho Lee, Chong Ock Lee, Sang Un Choi, Chi Hoon Park
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Publication number: 20150370115Abstract: A display may have a color filter layer and a thin-film transistor layer. A layer of liquid crystal material may be located between the color filter layer and the thin-film transistor layer. Column spacers may be formed on the color filter layer to maintain a desired gap between the color filter and thin-film transistor layers. Support pads may be used to support the column spacers. The column spacers and support pads may have comparable thicknesses. Different column spacers may be located at different portions of the support pads to allow the support pad size to be reduced while ensuring adequate support.Type: ApplicationFiled: June 18, 2014Publication date: December 24, 2015Inventors: Zhibing Ge, Yeon Sik Ham, Cheng Chen, Chia Hsuan Tai, Enkhamgalan Dorjgotov, Sang Un Choi, Shih-Chyuan Fan Jiang
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Patent number: 9199944Abstract: Disclosed herein are a new N2,N4-bis(4-(piperazin-1-yl)phenyl)pyrimidin-2,4-diamine derivative or a pharmaceutically acceptable salt thereof and a pharmaceutical composition for the prevention or treatment of cancers containing the same as an active ingredient. The compound of the present invention has excellent inhibitory effects against the activities of anaplastic lymphoma kinase (ALK) and activated cdc42-associated kinase (ACK1) and thus can improve the therapeutic effects on the treatment of cancer cells having anaplastic lymphoma kinase fusion proteins such as EML4-ALK and NPM-ALK, and also effectively prevent the recurrence of cancers thus being useful as a pharmaceutical composition for the prevention and treatment of cancers.Type: GrantFiled: February 9, 2015Date of Patent: December 1, 2015Assignee: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGYInventors: Kwangho Lee, Hyoung Rae Kim, Chi Hoon Park, Chong Ock Lee, Jong Kook Lee, Hee Jung Jung, Sung Yun Cho, Chong Hak Chae, Sang Un Choi, Jae Du Ha
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Publication number: 20150259350Abstract: The present invention relates to a novel triazolopyrazine derivative or a pharmaceutically acceptable salt thereof, and a pharmaceutical composition containing the same as an active ingredient for preventing or treating hyper proliferative disorder. The present invention can be useful as a therapeutic agent for various hyper proliferative disorders associated with excessive cell proliferation and growth caused by abnormal kinase activity, such as cancer, psoriasis, rheumatoid arthritis, and diabetic retinopathy, by efficiently inhibiting c-Met tyrosine kinase activity.Type: ApplicationFiled: September 30, 2013Publication date: September 17, 2015Inventors: Hee Jung Jung, Jae Du Ha, Sung Yun Cho, Hyoung Rae Kim, Kwang Ho Lee, Chong Ock Lee, Sang Un Choi, Chi Hoon Park
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Publication number: 20150198844Abstract: A display may have a layer of liquid crystal material between a color filter layer and a thin-film transistor layer. Column spacer structures may be formed between the color filter layer and the thin-film transistor layer to maintain a desired separation between the color filter and thin-film transistor layers. Column spacers may be deposited in column spacer regions of the color filter layer. The color filter layer may include rows of red, green, and blue color filter elements. Blue color filter material that forms blue color filter elements in the color filter layer may also be used to form a planar surface over red and green color filter elements in the column spacer regions. Using the blue color filter material to planarize the surface on which column spacers are formed ensures that the column spacers provide sufficient support for the display without requiring an additional planarization layer.Type: ApplicationFiled: August 29, 2014Publication date: July 16, 2015Inventors: Sang Un Choi, Zhibing Ge, Shang-Chih Lin, Hiroshi Osawa, Ton-Yong Wang, Ming Xu
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Publication number: 20150152069Abstract: Disclosed herein are a new N2,N4-bis(4-(piperazin-1-yl)phenyl)pyrimidin-2,4-diamine derivative or a pharmaceutically acceptable salt thereof and a pharmaceutical composition for the prevention or treatment of cancers containing the same as an active ingredient. The compound of the present invention has excellent inhibitory effects against the activities of anaplastic lymphoma kinase (ALK) and activated cdc42-associated kinase (ACK1) and thus can improve the therapeutic effects on the treatment of cancer cells having anaplastic lymphoma kinase fusion proteins such as EML4-ALK and NPM-ALK, and also effectively prevent the recurrence of cancers thus being useful as a pharmaceutical composition for the prevention and treatment of cancers.Type: ApplicationFiled: February 9, 2015Publication date: June 4, 2015Inventors: Kwangho LEE, Hyoung Rae KIM, Chi Hoon PARK, Chong Ock LEE, Jong Kook LEE, Hee Jung JUNG, Sung Yun CHO, Chong Hak CHAE, Sang Un CHOI, Jae Du HA
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Patent number: 7279497Abstract: The present invention relates to benzopyran derivatives substituted with secondary amines including imidazole, their preparation, and pharmaceutical compositions containing them. The present invention is pharmacologically useful for the treatment of cancer, rheumatoid arthritis, and diabetic retinopathies through anti-angiogenic properties, and also pharmacologically useful in the protection of heart and neuronal cells against ischemia-reperfusion injury or preserving organs.Type: GrantFiled: July 30, 2003Date of Patent: October 9, 2007Assignee: Korea Research Institute of Chemical TechnologyInventors: Kyu Yang Yi, Sun Kyung Lee, Sung-Eun Yoo, Jee Hee Suh, Nak Jeong Kim, Sun Kyung Hwang, Byung-Ho Lee, Ho Won Seo, Chong Ock Lee, Sang-Un Choi
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Patent number: 7064348Abstract: A VVA-mode LCD having improved transmittance and response speed includes upper and lower substrates positioned to face each other with a predetermined distance between them; a liquid crystal layer having negative anisotropy of dielectric constant interposed between the upper and lower substrates; a color resin layer formed on the inner surface of the upper substrate and having a predetermined number of valleys regularly formed inside each unit pixel; a counter electrode formed on the color resin layer including the valleys; a pixel electrode formed on the inner surface of the lower substrate and having slits arranged about the valleys of the upper substrate in a “+” shape inside and around the valleys; and alignment layers interposed between the pixel electrode and the liquid crystal layer and between the counter electrode and the liquid crystal layer, respectively.Type: GrantFiled: June 1, 2005Date of Patent: June 20, 2006Assignee: Boe Hydis Technology Co., Ltd.Inventors: Sung Woon Kim, Sang Un Choi
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Publication number: 20050267188Abstract: The present invention relates to benzopyran derivatives substituted with secondary amines including imidazole, their preparation, and pharmaceutical compositions containing them. The present invention is pharmacologically useful for the treatment of cancer, rheumatoid arthritis, and diabetic retinopathies through anti-angiogenic properties, and also pharmacologically useful in the protection of heart and neuronal cells against ischemia-reperfusion injury or preserving organs.Type: ApplicationFiled: July 30, 2003Publication date: December 1, 2005Inventors: Kyu Yi, Sun Lee, Sung-Eun Yoo, Jee Suh, Nak Kim, Sun Hwang, Byung-Ho Lee, Ho Seo, Chong Lee, Sang-Un Choi