Patents by Inventor Min-Sik Eum
Min-Sik Eum 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: 11937440Abstract: The present invention may provide an organic electroluminescent device which exhibits low driving voltage as well as high efficiency by including an electron transporting layer material having an improved electron transporting ability.Type: GrantFiled: July 5, 2018Date of Patent: March 19, 2024Assignee: SOLUS ADVANCED MATERIALS CO., LTD.Inventors: Song Ie Han, Min Sik Eum, Jae Yi Sim, Yong Hwan Lee, Woo Jae Park, Tae Hyung Kim
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Patent number: 11917910Abstract: The present invention relates to a novel organic compound and an organic electroluminescent device using the same, and more particularly, to a novel compound having excellent electron transport capability and light emitting capability, and an organic electroluminescent device improved in terms of luminous efficiency, driving voltage, lifespan, etc. by including the novel compound in one or more organic layers.Type: GrantFiled: May 18, 2018Date of Patent: February 27, 2024Assignee: SOLUS ADVANCED MATERIALS CO., LTD.Inventors: Yong Hwan Lee, Min Sik Eum, Jae Yi Sim, Woo Jae Park, Song Ie Han
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Patent number: 11832514Abstract: Disclosed are a novel organic compound, and an organic electroluminescent element having improved characteristics, such as luminous efficiency, driving voltage, and lifespan, by containing the novel organic compound in one or more organic material layers.Type: GrantFiled: February 19, 2020Date of Patent: November 28, 2023Assignee: SOLUS ADVANCED MATERIALS CO., LTD.Inventors: Min-Sik Eum, Hojun Son, Woo Jae Park, Tae Hyung Kim, Jiyi Kim, Youngmi Beak
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Publication number: 20210147336Abstract: The present invention relates to a novel compound and an organic electroluminescent device including the same, and by using the compound according to the present invention in an organic material layer, preferably a light emitting layer, of an organic electroluminescent device, luminous efficiency, driving voltage, lifetime and the like of the organic electroluminescent device may be enhanced.Type: ApplicationFiled: November 21, 2017Publication date: May 20, 2021Applicant: DOOSAN SOLUS CO., LTD.Inventors: Jae Yi SIM, Min-Sik EUM, Woo Jae PARK
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Publication number: 20210143327Abstract: The present disclosure relates to a novel compound and an organic electroluminescent device including the same. When the compound according to the present disclosure is used in an organic layer, preferably a light-emitting layer, in an organic electroluminescent device, it may improve the luminous efficiency, driving voltage, lifetime, etc. of the organic electroluminescent device.Type: ApplicationFiled: February 13, 2019Publication date: May 13, 2021Applicant: DOOSAN SOLUS CO., LTD.Inventors: Jae Yi SIM, Min Sik EUM, Woo Jae PARK
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Patent number: 10916709Abstract: The present invention relates to a novel organic compound, and an organic electroluminescent element having improved characteristics, such as luminous efficiency, driving voltage, and lifespan, by containing the novel organic compound in one or more organic material layers.Type: GrantFiled: December 24, 2015Date of Patent: February 9, 2021Assignee: DOOSAN SOLUS CO., LTD.Inventors: Min-Sik Eum, Hojun Son, Woo Jae Park, Tae Hyung Kim, Jiyi Kim, Youngmi Beak
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Publication number: 20200251659Abstract: The present invention relates to a novel organic compound and an organic electroluminescent device using the same, and more particularly, to a novel compound having excellent electron transport capability and light emitting capability, and an organic electroluminescent device improved in terms of luminous efficiency, driving voltage, lifespan, etc. by including the novel compound in one or more organic layers.Type: ApplicationFiled: May 18, 2018Publication date: August 6, 2020Applicant: DOOSAN CORPORATIONInventors: Yong Hwan LEE, Min Sik EUM, Jae Yi SIM, Woo Jae PARK, Song le HAN
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Publication number: 20200194706Abstract: The present invention may provide an organic electroluminescent device which exhibits low driving voltage as well as high efficiency by including an electron transporting layer material having an improved electron transporting ability.Type: ApplicationFiled: July 5, 2018Publication date: June 18, 2020Applicant: DOOSAN SOLUS CO., LTD.Inventors: Song Ie HAN, Min Sik EUM, Jae Yi SIM, Yong Hwan LEE, Woo Jae PARK, Tae Hyung KIM
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Publication number: 20200185617Abstract: Disclosed are a novel organic compound, and an organic electroluminescent element having improved characteristics, such as luminous efficiency, driving voltage, and lifespan, by containing the novel organic compound in one or more organic material layers.Type: ApplicationFiled: February 19, 2020Publication date: June 11, 2020Applicant: DOOSAN CORPORATIONInventors: Min-Sik Eum, Hojun Son, Woo Jae Park, Tae Hyung Kim, Jiyi Kim, Youngmi Beak
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Publication number: 20200185618Abstract: Disclosed are a novel organic compound, and an organic electroluminescent element having improved characteristics, such as luminous efficiency, driving voltage, and lifespan, by containing the novel organic compound in one or more organic material layers.Type: ApplicationFiled: February 19, 2020Publication date: June 11, 2020Applicant: DOOSAN CORPORATIONInventors: Min-Sik EUM, Hojun SON, Woo Jae PARK, Tae Hyung KIM, Jiyi KIM, Youngmi BEAK
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Publication number: 20200168805Abstract: The present disclosure relates to a novel organic compound and an organic EL device including the organic compound. The compound according to the present disclosure may be used in an organic layer of an organic EL device, more specifically, in a light emitting layer, a light emitting auxiliary layer, an electron transport auxiliary layer, or an electron transporting layer and may improve driving voltage, luminous efficiency, and lifespan characteristics of the organic EL device.Type: ApplicationFiled: July 2, 2018Publication date: May 28, 2020Applicant: DOOSAN CORPORATIONInventors: Woo Jae PARK, Min Sik EUM, JaeYi SIM
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Patent number: 9960363Abstract: The present invention provides an organic electroluminescent element which comprises: an anode; a cathode; and an organic layer interposed between the anode and the cathodes, wherein the organic layer comprises one or more types of layer from the group consisting of a hole-injection layer, hole-transport layer, light-emitting layer, lifetime enhancement layer, electron-transport layer, and electron-injection layer.Type: GrantFiled: December 21, 2015Date of Patent: May 1, 2018Assignee: DOOSAN CORPORATIONInventors: Min-Sik Eum, Ho-Cheol Park, Chang Jun Lee, Tae Hyung Kim, Jiyi Kim, Youngmi Beak
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Publication number: 20180053900Abstract: The present invention relates to a novel organic compound, and an organic electroluminescent element having improved characteristics, such as luminous efficiency, driving voltage, and lifespan, by containing the novel organic compound in one or more organic material layers.Type: ApplicationFiled: December 24, 2015Publication date: February 22, 2018Applicant: DOOSAN CORPORATIONInventors: Min-Sik EUM, Hojun SON, Woo Jae PARK, Tae Hyung KIM, Jiyi KIM, Youngmi BEAK
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Publication number: 20180013072Abstract: The present invention provides an organic electroluminescent element which comprises: an anode; a cathode; and an organic layer interposed between the anode and the cathodes, wherein the organic layer comprises one or more types of layer from the group consisting of a hole-injection layer, hole-transport layer, light-emitting layer, lifetime enhancement layer, electron-transport layer, and electron-injection layer.Type: ApplicationFiled: December 21, 2015Publication date: January 11, 2018Applicant: DOOSAN CORPORATIONInventors: Min-Sik EUM, Ho-Cheol PARK, Chang Jun LEE, Tae Hyung KIM, Jiyi KIM, Youngmi BEAK
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Patent number: 9837618Abstract: The present invention relates to a novel indole-based compound having excellent hole injection and transport capabilities, light-emitting capabilities, and the like, and an organic electroluminescence device which includes the indole-based compound in one or more organic material layers thereof so as to improve characteristics such as light-emitting efficiency, driving voltage, and lifespan.Type: GrantFiled: August 13, 2013Date of Patent: December 5, 2017Assignee: DOOSAN CORPORATIONInventors: Ho Cheol Park, Hyung Chan Bae, Min Sik Eum, Young Mi Beak, Chang Jun Lee, Jin Yong Shin, Tae Hyung Kim
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Patent number: 9543538Abstract: An organic light-emitting device includes a positive electrode, a negative electrode and at least one organic material layer between the positive electrode and the negative electrode. The at least one organic material layer includes a hole-injecting layer, a hole-transporting layer, an emission layer, an electron-transporting layer, and an electron-injecting layer, and the emission layer includes a host material and a dopant material. In addition, a lifetime enhancement layer including a bipolar compound is positioned between the emission layer and the electron-transporting layer.Type: GrantFiled: October 31, 2014Date of Patent: January 10, 2017Assignees: SAMSUNG DISPLAY CO., LTD., DOSAN CORPORATIONInventors: Seul-Ong Kim, Mi-Kyung Kim, Dong-Woo Shin, Chang-Woong Chu, Tae Hyung Kim, HoCheol Park, Youngmi Beak, Min-Sik Eum, Eunjung Lee, Chang Jun Lee
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Publication number: 20150236272Abstract: The present invention relates to a novel indole-based compound having excellent hole injection and transport capabilities, light-emitting capabilities, and the like, and an organic electroluminescence device which includes the indole-based compound in one or more organic material layers thereof so as to improve characteristics such as light-emitting efficiency, driving voltage, and lifespan.Type: ApplicationFiled: August 13, 2013Publication date: August 20, 2015Applicant: DOOSAN CORPORATIONInventors: Ho Cheol Park, Hyung Chan Bae, Min Sik Eum, Young Mi Beak, Chang Jun Lee, Jin Yong Shin, Tae Hyung Kim
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Publication number: 20150207093Abstract: An organic light-emitting device includes a positive electrode, a negative electrode and at least one organic material layer between the positive electrode and the negative electrode. The at least one organic material layer includes a hole-injecting layer, a hole-transporting layer, an emission layer, an electron-transporting layer, and an electron-injecting layer, and the emission layer includes a host material and a dopant material. In addition, a lifetime enhancement layer including a bipolar compound is positioned between the emission layer and the electron-transporting layer.Type: ApplicationFiled: October 31, 2014Publication date: July 23, 2015Inventors: Seul-Ong Kim, Mi-Kyung Kim, Dong-Woo Shin, Chang-Woong Chu, Tae Hyung Kim, HoCheol Park, Youngmi Baek, Min-Sik Eum, Eunjung Lee, Chang Jun Lee