Patents by Inventor Jeong Yun Sun
Jeong Yun Sun 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: 11850805Abstract: A method for manufacturing a PDMS device in accordance with an exemplary embodiment of the present invention surface treats the entire surface of a pattern with a thiol group (—SH), so that a hydrogel may be connected to the surface of the pattern by a covalent bond under ultraviolet rays. Therefore, a PDMS device manufactured by the above method has an advantage in that the shape thereof may be stably maintained without the swelling or desorption of a hydrogel even when an electrolyte is filled in a pattern.Type: GrantFiled: July 1, 2021Date of Patent: December 26, 2023Assignee: SEOUL NATIONAL UNIVERSITY R & DB FOUNDATIONInventors: Taek Dong Chung, Young-Chang Joo, Jeong-Yun Sun, Seok Hee Han, Sung Il Kim, Hae-Ryung Lee, Seung-Min Lim
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Publication number: 20230067719Abstract: The present disclosure relates to a triboresistive touch sensor capable of generating electric power by electrification and electrostatic induction, and thus sensing a touch position without a grid.Type: ApplicationFiled: September 29, 2022Publication date: March 2, 2023Inventors: Jeong-Yun SUN, Younghoon LEE, Sungsoo LIM
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Patent number: 11474069Abstract: Disclosed is an open-junction ionic transistor which includes: a substrate; a p type gel which is formed as a polyelectrolyte gel on the substrate; an n type gel which is formed as the polyelectrolyte gel on the substrate and having one side contacting one side of the p type gel; a first reservoir contacting the other side of the p type gel; a second reservoir contacting the other side of the n type gel; and an encapsulation layer covering the p type gel, the n type gel, the first reservoir, and the second reservoir, in which on the encapsulation layer, an injection unit for injecting an ion input is formed at a location corresponding to an interface contacting the p type gel and the n type gel and when reverse bias voltage is applied between the p type gel and the n type gel, the ion input injected through the injection unit is amplified and ionic current peak is generated.Type: GrantFiled: May 29, 2020Date of Patent: October 18, 2022Assignee: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATIONInventors: Jeong-Yun Sun, Young-Chang Joo, Taek Dong Chung, Hae-Ryung Lee, Seung-Min Lim, Seok Hee Han, Hyunjae Yoo
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Publication number: 20220063211Abstract: A method for manufacturing a PDMS device in accordance with an exemplary embodiment of the present invention surface treats the entire surface of a pattern with a thiol group (—SH), so that a hydrogel may be connected to the surface of the pattern by a covalent bond under ultraviolet rays. Therefore, a PDMS device manufactured by the above method has an advantage in that the shape thereof may be stably maintained without the swelling or desorption of a hydrogel even when an electrolyte is filled in a pattern.Type: ApplicationFiled: July 1, 2021Publication date: March 3, 2022Inventors: Taek Dong CHUNG, Young-Chang JOO, Jeong-Yun SUN, Seok Hee HAN, Sung Il KIM, Hae-Ryung LEE, Seung-Min LIM
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Publication number: 20210353830Abstract: The invention features a composition comprising a self-healing interpenetrating network hydrogel comprising a first network and a second network. The first network comprises covalent crosslinks and the second network comprises ionic or physical crosslinks. For example, the first network comprises a polyacrylamide polymer and second network comprises an alginate polymer.Type: ApplicationFiled: May 14, 2021Publication date: November 18, 2021Inventors: Jeong-Yun Sun, Xuanhe Zhao, Widusha R.K. Illeperuma, Kyu Hwan Oh, Joost J. Vlassak, Zhigang Suo, Jianyu Li, David J. Mooney
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Patent number: 11033658Abstract: The invention features a composition comprising a self-healing interpenetrating network hydrogel comprising a first network and a second network. The first network comprises covalent crosslinks and the second network comprises ionic or physical crosslinks. For example, the first network comprises a polyacrylamide polymer and second network comprises an alginate polymer.Type: GrantFiled: July 2, 2019Date of Patent: June 15, 2021Assignees: President and Fellows of Harvard CollegeInventors: Jeong-Yun Sun, Xuanhe Zhao, Widusha R. K. Illeperuma, Kyu H. Oh, Joost J. Vlassak, Zhigang Suo, Jianyu Li, David J. Mooney
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Publication number: 20210124551Abstract: The present invention relates to an optical element capable of simultaneously outputting sound from the surface of a display device with an image, the optical element comprising: a first electrode member; a first dielectric elastomer layer disposed on the first electrode member; a second electrode member disposed on the first dielectric elastomer layer; and an optical crystal layer disposed on the second electrode member. Accordingly, in the present invention, image and sound are implemented simultaneously, and thus, it is possible to prevent defects due to mismatching of the image and the sound, and a separate sound system is not required when the display device is manufactured using the optical element, thereby making it possible to reduce components of an electronic product including the display device and reduce the manufacturing cost.Type: ApplicationFiled: May 14, 2019Publication date: April 29, 2021Inventors: Jeong Yun SUN, Jeong Min MOON, Su Seok CHOI, Sungpil RYU, Jihwan JUNG, Kiseok CHANG, Do Yoon KIM, Hyesung CHO
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Patent number: 10860148Abstract: The present invention relates to an ionic touch panel, and more particularly, to an ionic touch panel using hydrogel for a touch panel and having flexibility, stretchability, and biocompatibility. An ionic touch panel according to an embodiment of the present invention includes a hydrogel touch unit 100 containing salt, and electrodes connected to at least two parts of the hydrogel touch unit.Type: GrantFiled: June 14, 2017Date of Patent: December 8, 2020Assignee: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATIONInventors: Jeong Yun Sun, Kyu Hwan Oh, Chong Chan Kim, Hyun Hee Lee
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Publication number: 20200378918Abstract: Disclosed is an open-junction ionic transistor which includes: a substrate; a p type gel which is formed as a polyelectrolyte gel on the substrate; an n type gel which is formed as the polyelectrolyte gel on the substrate and having one side contacting one side of the p type gel; a first reservoir contacting the other side of the p type gel; a second reservoir contacting the other side of the n type gel; and an encapsulation layer covering the p type gel, the n type gel, the first reservoir, and the second reservoir, in which on the encapsulation layer, an injection unit for injecting an ion input is formed at a location corresponding to an interface contacting the p type gel and the n type gel and when reverse bias voltage is applied between the p type gel and the n type gel, the ion input injected through the injection unit is amplified and ionic current peak is generated.Type: ApplicationFiled: May 29, 2020Publication date: December 3, 2020Inventors: Jeong-Yun SUN, Young-Chang Joo, Taek Dong Chung, Hae-Ryung LEE, Seung-Min LIM, Seok Hee HAN, Hyunjae YOO
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Publication number: 20200000967Abstract: The invention features a composition comprising a self-healing interpenetrating network hydrogel comprising a first network and a second network. The first network comprises covalent crosslinks and the second network comprises ionic or physical crosslinks. For example, the first network comprises a polyacrylamide polymer and second network comprises an alginate polymer.Type: ApplicationFiled: July 2, 2019Publication date: January 2, 2020Inventors: Jeong-Yun Sun, Xuanhe Zhao, Widusha R.K. Illeperuma, Kyu H. Oh, Joost J. Vlassak, Zhigang Suo, Jianyu Li, David J. Mooney
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Patent number: 10383980Abstract: The invention features a composition comprising a self-healing interpenetrating network hydrogel comprising a first network and a second network. The first network comprises covalent crosslinks and the second network comprises ionic or physical crosslinks. For example, the first network comprises a polyacrylamide polymer and second network comprises an alginate polymer.Type: GrantFiled: June 3, 2016Date of Patent: August 20, 2019Assignees: President and Fellows of Harvard College, Seoul National University Industry FoundationInventors: Jeong-Yun Sun, Xuanhe Zhao, Widusha R. K. Illeperuma, Kyu H. Oh, Joost J. Vlassak, Zhigang Suo, Jianyu Li, David J. Mooney
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Publication number: 20190163300Abstract: The present invention relates to an ionic touch panel, and more particularly, to an ionic touch panel using hydrogel for a touch panel and having flexibility, stretchability, and biocompatibility. An ionic touch panel according to an embodiment of the present invention includes a hydrogel touch unit 100 containing salt, and electrodes connected to at least two parts of the hydrogel touch unit.Type: ApplicationFiled: June 14, 2017Publication date: May 30, 2019Inventors: Jeong Yun SUN, Kyu Hwan OH, Chong Chan KIM, Hyun Hee LEE
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Patent number: 10302586Abstract: A class of devices enabled by ionic conductors is highly stretchable, fully transparent to light of all colors, biocompatible or biodegradable, and capable of operation at frequencies beyond 10 kilohertz and voltages above 10 kilovolts. These devices enabled by ionic conductors can be used as large strain actuators, full-range loudspeakers, as strain or pressure sensors and as stretchable interconnects. The electromechanical transduction is achieved without electrochemical reaction. When large stretchability and high optical transmittance are required, the ionic conductors have lower sheet resistance than all existing electronic conductors.Type: GrantFiled: April 10, 2014Date of Patent: May 28, 2019Assignee: President and Fellows of Harvard CollegeInventors: Jeong Yun Sun, Christoph Matthias Keplinger, Zhigang Suo, George M. Whitesides
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Publication number: 20160354520Abstract: The invention features a composition comprising a self-healing interpenetrating network hydrogel comprising a first network and a second network. The first network comprises covalent crosslinks and the second network comprises ionic or physical crosslinks. For example, the first network comprises a polyacrylamide polymer and second network comprises an alginate polymer.Type: ApplicationFiled: June 3, 2016Publication date: December 8, 2016Inventors: Jeong-Yun Sun, Xuanhe Zhao, Widusha R.K. Illeperuma, Kyu H. Oh, Joost J. Vlassak, Zhigang Suo, Jianyu Li, David J. Mooney
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Patent number: 9387276Abstract: The invention features a composition comprising a self-healing interpenetrating network hydrogel comprising a first network and a second network. The first network comprises covalent crosslinks and the second network comprises ionic or physical crosslinks. For example, the first network comprises a polyacrylamide polymer and second network comprises an alginate polymer.Type: GrantFiled: January 7, 2013Date of Patent: July 12, 2016Assignees: President and Fellows of Harvard College, Seoul National University Industry FoundationInventors: Jeong-Yun Sun, Xuanhe Zhao, Widusha R. K. Illeperuma, Kyu Hwan Oh, Joost J. Vlassak, Zhigang Suo, Jianyu Li, David J. Mooney
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Publication number: 20160025669Abstract: A class of devices enabled by ionic conductors is highly stretchable, fully transparent to light of all colors, biocompatible or biodegradable, and capable of operation at frequencies beyond 10 kilohertz and voltages above 10 kilovolts. These devices enabled by ionic conductors can be used as large strain actuators, full-range loudspeakers, as strain or pressure sensors and as stretchable interconnects. The electromechanical transduction is achieved without electrochemical reaction. When large stretchability and high optical transmittance are required, the ionic conductors have lower sheet resistance than all existing electronic conductors.Type: ApplicationFiled: April 10, 2014Publication date: January 28, 2016Inventors: Jeong Yun SUN, Christoph Matthias KEPLINGER, Zhigang SUO, George M. WHITESIDES
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Publication number: 20150038613Abstract: The invention features a composition comprising a self-healing interpenetrating network hydrogel comprising a first network and a second network. The first network comprises covalent crosslinks and the second network comprises ionic or physical crosslinks. For example, the first network comprises a polyacrylamide polymer and second network comprises an alginate polymer.Type: ApplicationFiled: January 7, 2013Publication date: February 5, 2015Inventors: Jeong-Yun Sun, Xuanhe Zhao, Widusha R.K. Illeperuma, Kyu Hwan Oh, Joost J. Vlassak, Zhigang Suo, Jianyu Li, David J. Mooney
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Publication number: 20080026329Abstract: A system and method for producing a plurality of controlled surface irregularities, such as wrinkles, is provided. The system includes a polymeric substrate. An irradiation source is positioned to provide a beam on desired areas of the polymeric substrate. The surface irregularities appear on the exposed region by controlling the relative motion of the polymeric substrate and the irradiation source when scanning the exposed region.Type: ApplicationFiled: July 23, 2007Publication date: January 31, 2008Inventors: Ashkan Vaziri, Myoung-Woon Moon, Sang Hoon Lee, Jeong Yun Sun, Kyu Hwan Oh