Patents by Inventor Young-duk Lee
Young-duk 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: 20240147853Abstract: An organic light emitting device comprising an anode, a cathode, and a light emitting layer between the anode and the cathode, the light emitting layer including a compound represented by Chemical Formula 1 and a compound represented by Chemical Formula 2, and having improved driving voltage, efficiency and lifetime.Type: ApplicationFiled: July 21, 2022Publication date: May 2, 2024Inventors: Minjun Kim, Dong Hoon Lee, Sang Duk Suh, Young Seok Kim
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Publication number: 20240138256Abstract: Provided is an organic light emitting device which includes a light emitting layer between an anode and a cathode, the light emitting layer comprising a compound of Chemical Formula 1 and a compound of Chemical Formula 2: where A?1 represents Chemical Formula 2-a, the dotted line is fused with an adjacent ring, Ar?1 is substituted or unsubstituted C6-60 aryl or C2-60 heteroaryl containing at least one of N, O and S, D is deuterium, and the other substituents are as defined in the specification. The organic light emitting device has excellent driving voltage, efficiency and lifespan when the compound of Chemical Formula 1 and the compound of Chemical Formula 2 are combined and used as a host for a red light emitting layer.Type: ApplicationFiled: April 5, 2021Publication date: April 25, 2024Inventors: Minjun KIM, Dong Hoon LEE, Sang Duk SUH, Young Seok KIM
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Publication number: 20240107884Abstract: Provided is an organic light emitting device having improved driving voltage, efficiency and lifetime, the device comprising: an anode; a cathode; and a light emitting layer therebetween, wherein the light emitting layer comprises a compound of Chemical Formula 1 and a compound of Chemical Formula 2: wherein: any one of R?1 to R?12 is Chemical Formula 3, and the rest are hydrogen or deuterium: R1 is hydrogen, deuterium, or a substituted or unsubstituted C6-30 aryl or C2-60 heteroaryl containing one or more of N, O and S; Ar1, Ar2, Ar?1, and Ar?2 are each independently a substituted or unsubstituted C6-60 aryl or C2-60 heteroaryl containing one or more of N, O and S; and the other substituents are as defined in the specification.Type: ApplicationFiled: February 21, 2022Publication date: March 28, 2024Inventors: Minjun KIM, Dong Hoon LEE, Sang Duk SUH, Young Seok KIM, Donghee KIM, Joongsuk OH, Da Jung LEE
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Publication number: 20240099133Abstract: Provided is an organic light emitting device comprising an anode; a cathode; and a light emitting layer therebetween, the light emitting layer comprising a compound of Chemical Formula 1 and a compound of Chemical Formula 2, the device having improved driving voltage, efficiency and lifetime: wherein: any one of R?1 to R?12 is Chemical Formula 3, and the rest are hydrogen or deuterium: Ar1, Ar2, Ar?1, and Ar?2 are each independently a substituted or unsubstituted C6-60 aryl or C2-60 heteroaryl containing any one or more of N, O and S; R1 is hydrogen, deuterium, or a substituted or unsubstituted C6-60 aryl or C2-60 heteroaryl containing any one or more of N, O and S; and the other substituents are as defined in the specification.Type: ApplicationFiled: February 18, 2022Publication date: March 21, 2024Inventors: Minjun KIM, Dong Hoon LEE, Sang Duk SUH, Young Seok KIM, Donghee KIM, Joongsuk OH, Da Jung LEE
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Patent number: 11929520Abstract: Disclosed herein is a porous separator for electrochemical devices, configured to guarantee electrical insulation between a positive electrode and a negative electrode, wherein the porous separator includes no polyolefin substrate, and includes inorganic particles, a binder for coupling between the inorganic particles, and a crosslinking agent.Type: GrantFiled: April 17, 2019Date of Patent: March 12, 2024Assignee: LG ENERGY SOLUTION, LTD.Inventors: Kyoung Ho Ahn, Kwan Woo Nam, Chul Haeng Lee, Young Duk Kim, Je An Lee
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Publication number: 20240081148Abstract: Provided is an organic light-emitting device having improved driving voltage, efficiency and lifespan, the device comprising an anode, a cathode, and a light emitting layer including a light emitting layer that includes a compound of Chemical Formula 1 and a compound of Chemical Formula 2 between the anode and the cathode: where Ar1 and Ar2 are each independently a substituted or unsubstituted C6-60 aryl or C2-60 heteroaryl containing at least one of N, O and S; R1 is each independently hydrogen or deuterium; R2 to R6 and R9 to R11 are each independently hydrogen or deuterium; one of R7 and R8 is ?and the other is hydrogen or deuterium; Ar3 and Ar4 are each independently a substituted or unsubstituted C6-60 aryl or C2-60 heteroaryl containing at least one of N, O and S; and the other substituents are as defined in the specification.Type: ApplicationFiled: April 27, 2022Publication date: March 7, 2024Inventors: Minjun KIM, Dong Hoon LEE, Sang Duk SUH, Young Seok KIM, Donghee KIM, Joongsuk OH, Da Jung LEE
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Patent number: 10180253Abstract: A carbon dioxide conversion system is provided. The carbon dioxide conversion system includes: an ion transfer membrane that separates oxygen in the air; an oxy-fuel combustor that combusts using oxygen that is separated at the ion transfer membrane as an oxidizing agent; and a dry-reformer that converts carbon dioxide that is generated through an oxy-fuel combustion reaction of the oxy-fuel combustor and methane gas that is supplied from the outside to carbon monoxide and hydrogen by a dry-reforming reaction.Type: GrantFiled: September 30, 2013Date of Patent: January 15, 2019Assignees: KOREA INSTITUTE OF MACHINERY & MATERIALS, KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY, KOREA INSTITUTE OF ENERGY RESEARCHInventors: Kew-Ho Lee, Kook-Young Ahn, Sang Gyu Kang, Young Duk Lee, Tae Sun Chang, Seung Eun Nam, Ji Haeung Yu, Jong Hoon Joo
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Patent number: 9412464Abstract: A semiconductor memory device and a memory module have a reconfiguration preventing function. The semiconductor memory device may include a memory cell array, a test information storing unit, and a control unit. The control unit may include a control signal storing unit and may prevent programming of the test information storing unit according to a control signal stored in the control signal storing unit.Type: GrantFiled: March 10, 2015Date of Patent: August 9, 2016Assignee: Samsung Electronics Co., Ltd.Inventor: Young Duk Lee
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Publication number: 20160055920Abstract: A semiconductor memory device and a memory module have a reconfiguration rejecting function. The semiconductor memory device may include a memory cell array, a test information storing unit, and a control unit. The control unit may include a control signal storing unit and may reject programming of the test information storing unit according to a control signal stored in the control signal storing unit.Type: ApplicationFiled: March 10, 2015Publication date: February 25, 2016Inventor: YOUNG DUK LEE
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Publication number: 20150308676Abstract: A carbon dioxide conversion system is provided. The carbon dioxide conversion system includes: an ion transfer membrane that separates oxygen in the air; an oxy-fuel combustor that combusts using oxygen that is separated at the ion transfer membrane as an oxidizing agent; and a dry-reformer that converts carbon dioxide that is generated through an oxy-fuel combustion reaction of the oxy-fuel combustor and methane gas that is supplied from the outside to carbon monoxide and hydrogen by a dry-reforming reaction.Type: ApplicationFiled: September 30, 2013Publication date: October 29, 2015Inventors: Kew-Ho LEE, Kook-Young AHN, Sang-Gyu KANG, Young Duk LEE, Tae Sun CHANG, Seung Eun NAM, Ji Haeung YU, Jong Hoon JOO
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Patent number: 9038579Abstract: The present invention relates to a fuel cell-engine hybrid system formed to effectively utilize an exhaust gas discharged from a process for generating electricity. A fuel cell-engine hybrid system according to the present invention includes: an electricity generating unit including a cathode and an anode interposing an electrolyte membrane therebetween; and an engine unit connected to a rear end of the electricity generating unit and generating power by receiving the exhaust gas discharged from the anode.Type: GrantFiled: May 11, 2012Date of Patent: May 26, 2015Assignee: KOREA INSTITUTE OF MACHINERY & MATERIALSInventors: Kook Young Ahn, Young Duk Lee, Sang Gyu Kang, Sang Min Lee, Han Seok Kim, Ju Hyeong Cho, Min Kuk Kim, Sung Ho Park, Seung Jin Song, Han Ho Song
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Publication number: 20120285162Abstract: The present invention relates to a fuel cell-engine hybrid system formed to effectively utilize an exhaust gas discharged from a process for generating electricity. A fuel cell-engine hybrid system according to the present invention includes: an electricity generating unit including a cathode and an anode interposing an electrolyte membrane therebetween; and an engine unit connected to a rear end of the electricity generating unit and generating power by receiving the exhaust gas discharged from the anode.Type: ApplicationFiled: May 11, 2012Publication date: November 15, 2012Applicant: KOREA INSTITUTE OF MACHINERY & MATERIALSInventors: Kook Young AHN, Young Duk Lee, Sang Gyu Kang, Sang Min Lee, Han Seok Kim, Ju Hyeong Cho, Min Kuk Kim, Sung Ho Park, Seung Jin Song, Han Ho Song
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Patent number: 7179002Abstract: A thermal image forming apparatus is provided adapted to form images on both sides of a recording medium. The thermal image forming apparatus includes an image forming part having a recording head for forming an image on the recording medium and a support member facing the recording head and supporting the recording medium with respect to the recording head. The recording medium has a first side and a second side opposite to the first side. A position changing unit rotates the recording head around a shaft of the support member to move the recording head to first and second locations respectively facing the first and second sides of the recording medium.Type: GrantFiled: December 9, 2004Date of Patent: February 20, 2007Assignee: Samsung Electronics Co., Ltd.Inventors: Young-duk Lee, Heon-soo Park, Jong-sung Jung, Dong-Hun Han
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Publication number: 20050140771Abstract: A thermal image forming apparatus is provided adapted to form images on both sides of a recording medium. The thermal image forming apparatus includes an image forming part having a recording head for forming an image on the recording medium and a support member facing the recording head and supporting the recording medium with respect to the recording head. The recording medium has a first side and a second side opposite to the first side. A position changing unit rotates the recording head around a shaft of the support member to move the recording head to first and second locations respectively facing the first and second sides of the recording medium.Type: ApplicationFiled: December 9, 2004Publication date: June 30, 2005Inventors: Young-duk Lee, Heon-soo Park, Jong-sung Jung, Dong-Hun Han