Patents by Inventor Dong-Kil LEE
Dong-Kil 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: 20240138255Abstract: Provided is a compound of Chemical Formula 1 or 2: wherein: R1 to R4 are each independently hydrogen or deuterium; n1 to n4 are an integer of 1 to 4; L1 and L2 are each independently a direct bond or a substituted or unsubstituted C6-60 arylene; and Ar1 and Ar2 are each independently a substituent of Chemical Formula 3: wherein X1 to X5 are each independently N or C(R5), wherein at least two of X1 to X5 are N; and each R5 is independently hydrogen, deuterium, a substituted or unsubstituted C1-20 alkyl, a substituted or unsubstituted C6-60 aryl, or a substituted or unsubstituted C2-60 heteroaryl containing at least one of N, O and S, or two adjacent R5s combine to form a benzene ring; and an organic light emitting device including the same. The device exhibits significantly superior efficiency and lifespan.Type: ApplicationFiled: February 28, 2022Publication date: April 25, 2024Inventors: Dong Uk HEO, Heekyung YUN, Miyeon HAN, Jae Tak LEE, Jung Min YOON, Hoyoon PARK, Sung Kil HONG
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Patent number: 11738600Abstract: The steel wire for the steel cord of the present invention includes a plating layer of Cu-M-Zn (M is one or two elements of Co, Ni, Cr, Mo, Al, In, or Sn) and has a concentration gradient in which the M content ratio in a region from the surface to ¼ of the plating layer is 40% or more compared with the M content ratio in the entire region of the plating layer, and the steel cord for rubber reinforcement is obtained by a manufacturing method comprising: performing sequential plating on a surface of a steel wire in the order of Cu?M?Zn; performing a primary diffusion, for concentration gradient of M, by subjecting the sequentially plated steel wire to high-frequency induction heating using 1-500 MHz; and performing a secondary diffusion, following the primary diffusion, by medium-frequency induction heating using 10-500 KHz.Type: GrantFiled: April 25, 2019Date of Patent: August 29, 2023Assignee: Trefil Arbed Korea Co. LTDInventors: Pyeong Yeol Park, Hong Ki Kim, Dong Kil Lee, Sang Ho Kim
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Patent number: 11446755Abstract: According to an embodiment, an object tracking device in a welding process tracks and outputs a predetermined object in a welding image. The object tracking device comprises a camera device capturing the welding image including a base material and a welding torch for welding the base material, a controller receiving a plurality of camera control parameter-varied images from the camera device, identifying the predetermined object in the received images, and generating an object tracking image, the plurality of camera control parameter-varied images having varied camera control parameters of the camera device, and an output device outputting the welding image captured by the camera device, the plurality of images received by the controller, or the object tracking image generated by the controller.Type: GrantFiled: November 18, 2020Date of Patent: September 20, 2022Inventors: Hoe Min Kim, Sung Kuk Chun, Dong Kil Lee, Kwang Hoon Lee, Seon Man Kim
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Publication number: 20210237513Abstract: The present invention relates to a steel cord for rubber reinforcement wherein a steel wire for steel cord has a plating layer of a ternary or quaternary alloy. The steel wire for the steel cord of the present invention comprises a plating layer of Cu-M-Zn (M is one or two elements of Co, Ni, Cr, Mo, Al, In, or Sn) and has a concentration gradient in which the M content ratio in a region from the surface to ¼ of the plating layer is 40% or more compared with the M content ratio in the entire region of the plating layer, and the steel cord for rubber reinforcement is obtained by a manufacturing method comprising: performing sequential plating on a surface of a steel wire in the order of Cu?M?Zn; performing a primary diffusion, for concentration gradient of M, by subjecting the sequentially plated steel wire to high-frequency induction heating using 1-500 MHz; and performing a secondary diffusion, following the primary diffusion, by medium-frequency induction heating using 10-500 KHz.Type: ApplicationFiled: April 25, 2019Publication date: August 5, 2021Inventors: Pyeong Yeol Park, Hong Ki Kim, Dong Kil Lee, Sang Ho Kim
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Patent number: 10871098Abstract: Disclosed are a thermoelectric generation apparatus, a heat generation apparatus for fuel storage tanks, and a waste heat recovery system. The thermoelectric generation apparatus according to an embodiment of this disclosure includes a first piping through which a fluid flows, a second piping through which a cooling medium of a lower temperature than the fluid flows so as to radiate the heat of the fluid, a plurality of first radiating fins having one side in contact with air of a lower temperature than the fluid so as to radiate the heat of the fluid and the other side in contact with the second piping, and a thermoelectric generation module provided between the first piping and the second piping to produce electricity through a temperature difference between the first piping and the second piping.Type: GrantFiled: August 6, 2015Date of Patent: December 22, 2020Assignee: SAMSUNG HEAVY IND. CO., LTD.Inventors: Jae-Gwan Kim, Yong-Kyu Kim, Dong-Kil Lee, Ho-Ki Lee
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Patent number: 10432923Abstract: A unit light source module configured as a 3D display system includes a light emitting unit including a plurality of point light sources corresponding to a number of viewpoints and a light collecting unit disposed a predetermined distance apart from the light emitting unit and collecting and outputting the light source outputted from the plurality of point light sources.Type: GrantFiled: April 23, 2015Date of Patent: October 1, 2019Assignee: KOREA PHOTONICS TECHNOLOGY INSTITUTEInventors: Kwang Hoon Lee, Dong Kil Lee, Yang Gyu Kim
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Publication number: 20190024561Abstract: Disclosed are a thermoelectric generation apparatus, a heat generation apparatus for fuel storage tanks, and a waste heat recovery system. The thermoelectric generation apparatus according to an embodiment of this disclosure includes a first piping through which a fluid flows, a second piping through which a cooling medium of a lower temperature than the fluid flows so as to radiate the heat of the fluid, a plurality of first radiating fins having one side in contact with air of a lower temperature than the fluid so as to radiate the heat of the fluid and the other side in contact with the second piping, and a thermoelectric generation module provided between the first piping and the second piping to produce electricity through a temperature difference between the first piping and the second piping.Type: ApplicationFiled: August 6, 2015Publication date: January 24, 2019Inventors: Jae-Gwan KIM, Yong-Kyu KIM, Dong-Kil LEE, Ho-Ki LEE
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Publication number: 20180363852Abstract: Provided are a thermoelectric power generation module, a thermoelectric power generation apparatus including the same, an anti-icing vaporization device including the same, and an apparatus for a vaporized fuel gas liquefaction process including the same. The thermoelectric power generation module includes: a pipe through which a fluid flows; and a thermoelectric power generator configured to surround the pipe and to produce power due to a temperature difference between the fluid and outside air.Type: ApplicationFiled: August 20, 2015Publication date: December 20, 2018Inventors: Yong Kyu KIM, Jae-Gwan KIM, Dong Kil LEE, Ho-Ki LEE
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Publication number: 20170041599Abstract: A unit light source module configured as a 3D display system includes a light emitting unit including a plurality of point light sources corresponding to a number of viewpoints and a light collecting unit disposed a predetermined distance apart from the light emitting unit and collecting and outputting the light source outputted from the plurality of point light sources.Type: ApplicationFiled: April 23, 2015Publication date: February 9, 2017Applicant: Korea Photonics Technology InstituteInventors: Kwang Hoon Lee, Dong Kil Lee, Yang Gyu Kim
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Patent number: 9376904Abstract: Provided are an apparatus and method for solution mining using cycling process in which a solvent is injected into underground useful ores to dissolve the useful ores and then collected again to obtain the useful ores. The cycling solution mining method includes a boring process for excavating the underground up to an ore deposit, a fracturing process to generate cracks in the ore deposit, an injection process for inserting a mining apparatus including an insertion rod having a pipe shape up to a lower portion of the well to inject a solvent that dissolves the useful ores into the ore deposit through the insertion rod, wherein a rotation force is applied to the solvent discharged from the insertion rod to increase a diffusion force of the solvent, and a production process for collecting the solvent, in which the useful ores are dissolved, again.Type: GrantFiled: June 18, 2014Date of Patent: June 28, 2016Assignee: KOREA INSTITUTE OF GEOSCIENCE AND MINERAL RESOURCES (KIGAM)Inventor: Dong-kil Lee
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Publication number: 20150068753Abstract: Provided are an apparatus and method for solution mining using cycling process in which a solvent is injected into underground useful ores to dissolve the useful ores and then collected again to obtain the useful ores. The cycling solution mining method includes a boring process for excavating the underground up to an ore deposit, a fracturing process to generate cracks in the ore deposit, an injection process for inserting a mining apparatus including an insertion rod having a pipe shape up to a lower portion of the well to inject a solvent that dissolves the useful ores into the ore deposit through the insertion rod, wherein a rotation force is applied to the solvent discharged from the insertion rod to increase a diffusion force of the solvent, and a production process for collecting the solvent, in which the useful ores are dissolved, again.Type: ApplicationFiled: June 18, 2014Publication date: March 12, 2015Inventor: Dong-kil LEE
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Publication number: 20130137995Abstract: A pulse diagnosis device which can detect the pulsation signal of a radial artery using an optical sensor comprising: a sensor module for sensing the pulsation signal by closely adhering thereto a prescribed body part; and a system control portion for operating the sensor module, and processing the optical signal sensed from the sensor module, wherein the sensor module comprises: an optical waveguide-type sensor which is placed on the bottom surface of the sensor module, and lets the optical signal to pass therethrough and detects the change in optical characteristics due to the change in the pressure; a light-source module which is connected on one side surface of the optical waveguide-type sensor, and inputs the optical signal into the optical waveguide-type sensor; and an optical detector module which is connected on one side surface of the optical waveguide-type sensor, and detects the optical signal delivered from the optical waveguide-type sensor.Type: ApplicationFiled: November 25, 2010Publication date: May 30, 2013Applicant: KOREA PHOTONICS TECHNOLOGY INSTITUTEInventors: Seon Hoon Kim, Doo-Gun Kim, Hyun-Chul Ki, Won-Gun Jang, Dong-Kil Lee, Hyo-Jin Kim, Myung-Soo Han, Hang-Ju Ko, Hwe Jong Kim, Byung-Teak Lee
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Publication number: 20120160752Abstract: Provided is an oxidation pond for treating acid mine drainage discharged from an abandoned mine. The oxidation pond comprises: an inlet into which mine drainage is introduced; a retention pond in which the mine drainage introduced into the inlet resides; and an outlet through which the mine drainage is discharged from the retention pond, so that iron in the mine drainage is oxidized and precipitated during residence of the mine drainage in the retention pond, wherein a neutralizing agent that increases the pH of the mine drainage to accelerate the iron precipitation reaction is placed in the retention pond.Type: ApplicationFiled: February 7, 2011Publication date: June 28, 2012Applicant: KOREA INSTITUTE OF GEOSCIENCE AND MINERAL RESOURCES(KIGAM)Inventors: Dong-Kil LEE, Gil-Jae YIM, Sang-Woo JI, Young-Wook CHEONG
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Publication number: 20120160751Abstract: Provided is an oxidation pond for treating acid mine drainage discharged from an abandoned mine. The oxidation pond comprises: an inlet into which mine drainage is introduced; a retention pond in which the mine drainage introduced into the inlet resides; and an outlet through which the mine drainage is discharged from the retention pond, so that iron in the mine drainage is oxidized and precipitated during residence of the mine drainage in the retention pond, wherein a neutralizing agent that increases the pH of the mine drainage to accelerate the iron precipitation reaction is placed in the retention pond.Type: ApplicationFiled: February 4, 2011Publication date: June 28, 2012Applicant: KOREA INSTITUTE OF GEOSCIENCE AND MINERAL RESOURCES(KIGAM)Inventors: Dong-Kil LEE, Gil-Jae YIM, Young-Wook CHEONG, Sang-Woo JI