Patents by Inventor Kyung-Wook Park
Kyung-Wook Park 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: 20250026997Abstract: A method of producing a lube base oil mixture includes providing a waste lubricant-derived refined oil fraction derived from a waste lubricant containing a lube base oil of API Group I or II. The waste lubricant-derived refined oil fraction contains an ionic refined oil, a first regenerated base oil, or a combination thereof, dewaxing the waste lubricant-derived refined oil fraction to produce a second regenerated base oil, and blending the second regenerated base oil with a separate lube base oil to produce a lube base oil mixture of Group III or higher. The method has an economical advantage because low-quality waste lubricant is used as a feedstock for the production of higher quality lube base oils. In addition, the method is advantageous in an environmentally friendly aspect because waste lubricant is reused rather than being disposed of.Type: ApplicationFiled: March 25, 2024Publication date: January 23, 2025Inventors: Young Wook JEON, Jun Soo PARK, Kyung Seok NOH
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Publication number: 20250026992Abstract: A method of recycling waste lubricant. The method includes providing a waste lubricant-derived oil fraction, pretreating the waste lubricant-derived oil fraction, and hydrocracking the pretreated waste lubricant-derived oil fraction. The method has economic advantages in that waste lubricant can be recycled into fuel oil and high-grade lube base oil with a relatively high yield compared to a lube base oil manufacturing process utilizing only unconverted oil as a feedstock.Type: ApplicationFiled: March 21, 2024Publication date: January 23, 2025Inventors: Young Wook JEON, Jun Soo PARK, Eun Kyoung KIM, Kyung Seok NOH
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Publication number: 20250026996Abstract: A method of recycling waste lubricant, the method including providing a waste lubricant-derived oil fraction, pretreating the waste lubricant-derived oil fraction, and hydrocracking the pretreated waste lubricant-derived oil fraction. The method recycles waste lubricant into fuel oil and high-grade lube base oil. According to the above method, high-quality lubricating base oil can be produced from waste lubricating oil, which is advantageous in economic terms.Type: ApplicationFiled: March 21, 2024Publication date: January 23, 2025Inventors: Young Wook JEON, Jun Soo PARK, Kyung Seok NOH
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Patent number: 11840760Abstract: In a layer deposition method, a substrate is loaded into a process chamber. A gas filling tank is charged with a gas to a predetermined charge pressure. The pressure of the gas is elevated to a pressure greater than the predetermined charge pressure. The gas is introduced into the process chamber.Type: GrantFiled: December 3, 2018Date of Patent: December 12, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Shin-Jae Kang, Dong-Hoon Han, Do-Hyung Kim, Kyung-Wook Park, Kevin Bae, Sun-Soo Lee, In-Jae Lee, Jeon-Il Lee, Chae-Mook Lim
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Publication number: 20190301016Abstract: In a layer deposition method, a substrate is loaded into a process chamber. A gas filling tank is charged with a gas to a predetermined charge pressure. The pressure of the gas is elevated to a pressure greater than the predetermined charge pressure. The gas is introduced into the process chamber.Type: ApplicationFiled: December 3, 2018Publication date: October 3, 2019Inventors: SHIN-JAE KANG, Dong-Hoon HAN, Do-Hyung KIM, Kyung-Wook PARK, Kevin BAE, Sun-Soo LEE, In-Jae LEE, Jeon-II LEE, Chae-Mook LIM
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Patent number: 9960373Abstract: The present invention relates to a substrate for a photoelectric device and a photoelectric device comprising the same and, more specifically, to a substrate for a photoelectric device and a photoelectric device comprising the same capable of guaranteeing the flatness of thin-films forming the photoelectric device and the structural stability of a functional thin-film formed to improve the characteristics of the photoelectric device, thereby maintaining the function of the functional thin-film. To this end, the present invention provides a substrate for a photoelectric device and a photoelectric device comprising the same, the substrate comprising: a base substrate; a concave-convex structure formed on the base substrate, in which the surface of the concave-convex structure forms a concave-convex pattern; and a planarization layer formed on the concave-convex structure, the planarization layer being formed of a 2-dimensional material.Type: GrantFiled: July 2, 2014Date of Patent: May 1, 2018Assignee: Corning Precision Materials Co., Ltd.Inventors: Hong Yoon, Soon Geun Kwon, Yoon Young Kwon, Kyung Wook Park, Hyun Hee Lee
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Patent number: 9865778Abstract: A light-emitting device discloses a light emitting structure layer including an active layer between first and second conductive semiconductor layers, a first electrode electrically connected to the first conductive semiconductor layer, a contact layer disposed under the second conductive semiconductor layer, a reflective layer disposed under the contact layer, a capping layer disposed under the reflective layer, and a conductive supporting member disposed under the capping layer. The reflective layer comprises a thickness that is greater than the thickness of the second conductive semiconductor layer and 90 or more times greater than the thickness of the contact layer.Type: GrantFiled: April 2, 2015Date of Patent: January 9, 2018Assignee: LG INNOTEK CO., LTD.Inventors: Woong Sun Yum, Ji Hyun Koo, Hyun Ju Kim, Kyung Wook Park, Sung Ho Choo
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Patent number: 9830074Abstract: A method of controlling a mobile terminal, and which includes displaying a touch keypad on a touch screen of the mobile terminal, the touch keypad including character input regions, at least one specific character input region including a first character symbol and a second character symbol; displaying an output window above the touch keypad, the output window displaying character symbols touched on the character input regions; receiving a touch selection signal indicating a touch selection of the specific character input region; as long as the received touch selection signal is received, displaying the keypad and a new character input region with the second character symbol being displayed larger than the second character symbol displayed in the specific character input region; and displaying the second character symbol in the output window when the touch selection is released from the new character input region.Type: GrantFiled: November 17, 2014Date of Patent: November 28, 2017Assignee: LG ELECTRONICS INC.Inventors: U-Beom Heo, Jeong-Hee Ahn, Joo-Ho Lee, Kyung-Wook Park
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Publication number: 20170125638Abstract: A light-emitting device discloses a light emitting structure layer including an active layer between first and second conductive semiconductor layers, a first electrode electrically connected to the first conductive semiconductor layer, a contact layer disposed under the second conductive semiconductor layer, a reflective layer disposed under the contact layer, a capping layer disposed under the reflective layer, and a conductive supporting member disposed under the capping layer. The reflective layer comprises a thickness that is greater than the thickness of the second conductive semiconductor layer and 90 or more times greater than the thickness of the contact layer.Type: ApplicationFiled: April 2, 2015Publication date: May 4, 2017Applicant: LG INNOTEK CO., LTD.Inventors: Woong Sun YUM, Ji Hyun KOO, Hyun Ju KIM, Kyung Wook PARK, Sung Ho CHOO
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Patent number: 9537056Abstract: Provided is a light emitting device. In one embodiment, a light emitting device including: a support member; a light emitting structure on the support member, the light emitting structure comprising a first conductive type semiconductor layer, a second conductive type semiconductor layer, and an active layer between the first conductive type semiconductor layer and the second conductive type semiconductor layer; a protective member at a peripheral region of an upper surface of the support member; an electrode including an upper portion being on the first conductive type semiconductor layer, a side portion extended from the upper portion and being on a side surface of the light emitting structure, and an extended portion extended from the side portion and being on the protective member; and an insulation layer between the side surface of the light emitting structure and the electrode.Type: GrantFiled: April 10, 2014Date of Patent: January 3, 2017Assignee: LG INNOTEK CO., LTD.Inventors: Jung Hyeok Bae, Young Kyu Jeong, Kyung Wook Park, Duk Hyun Park
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Publication number: 20160301022Abstract: The present invention relates to a substrate for a photoelectric device and a photoelectric device comprising the same and, more specifically, to a substrate for a photoelectric device and a photoelectric device comprising the same capable of guaranteeing the flatness of thin-films forming the photoelectric device and the structural stability of a functional thin-film formed to improve the characteristics of the photoelectric device, thereby maintaining the function of the functional thin-film. To this end, the present invention provides a substrate for a photoelectric device and a photoelectric device comprising the same, the substrate comprising: a base substrate; a concave-convex structure formed on the base substrate, in which the surface of the concave-convex structure forms a concave-convex pattern; and a planarization layer formed on the concave-convex structure, the planarization layer being formed of a 2-dimensional material.Type: ApplicationFiled: July 2, 2014Publication date: October 13, 2016Applicant: Corning Precision Materials Co., Ltd.Inventors: Hong Yoon, Soon Geun Kwon, Yoon Young Kwon, Kyung Wook Park, Hyun Hee Lee
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Patent number: 9123904Abstract: In one example embodiment, a light emitting device includes a transparent substrate and a transparent electrode on the transparent substrate, the transparent electrode comprising at least two transparent electrode layers, the at least two transparent electrode layers being successively stacked and having different refractive indices, the refractive index of one of the at least two transparent electrode layers that is closer to the transparent substrate being higher than the refractive index of the other one of the at least two transparent electrode layers. The light emitting device further includes a light emission layer on the transparent electrode and a reflective electrode on the light emission layer.Type: GrantFiled: January 2, 2014Date of Patent: September 1, 2015Assignees: Samsung Electronics Co., Ltd., Samsung Corning Precision Materials Co., Ltd.Inventors: Gae-hwang Lee, Jeong-woo Park, Yoon-young Kwon, Kyung-wook Park, Mi-jeong Song, Young-Zo Yoo, Yong-wan Jin
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Patent number: 9076947Abstract: Provided is a light emitting device. The light emitting device comprises: In one embodiment, a light emitting device includes: a light emitting structure comprising a first conductive type semiconductor layer, a second conductive type semiconductor layer, and an active layer between the first conductive type semiconductor layer and the second conductive type semiconductor layer; and a conductive support member under the light emitting structure. The conductive support member comprises a first conductive support member and a second conductive support member. The second conductive support member has a thermal conductivity higher than that of the first conductive support member.Type: GrantFiled: March 31, 2014Date of Patent: July 7, 2015Assignee: LG Innotek Co., Ltd.Inventors: Jung Hyeok Bae, Young Kyu Jeong, Kyung Wook Park, Duk Hyun Park
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Patent number: 9041028Abstract: Provided are a light emitting device, a method for fabricating the light emitting device, and a light emitting device package. The light emitting device includes a light emitting structure including a first conductive type semiconductor layer, an active layer under the first conductive type semiconductor layer, and a second conductive type semiconductor layer under the active layer, a conductive support member, and a protection member on the light emitting structure. The light emitting structure has a first width and a second width. A difference between the first width and the second width defines a stepped structure or an inclined structure. The protection member is disposed on the stepped or the inclined structure defined by the difference between the first and second widths of the light emitting structure.Type: GrantFiled: February 23, 2011Date of Patent: May 26, 2015Assignee: LG INNOTEK CO., LTD.Inventors: Jung Hyeok Bae, Byung Hak Jeong, Kyung Wook Park, Chung Song Kim
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Patent number: 8987767Abstract: According to example embodiments, a light emitting device includes a transparent substrate, a transparent electrode on a transparent substrate, a transparent light extraction layer at least partially on the transparent electrode, a light emitting layer on the transparent electrode, and a reflective electrode on the light extraction layer and the light emitting layer. The light extraction layer and the light emitting layer may be alternately and repeatedly arranged between the transparent electrode and the reflective electrode.Type: GrantFiled: December 6, 2013Date of Patent: March 24, 2015Assignees: Samsung Electronics Co., Ltd., Corning Precision Materials Co., Ltd.Inventors: Gae-hwang Lee, Kyung-wook Park, Yoon-young Kwon, Jeong-woo Park, Mi-jeong Song, Yong-wan Jin
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Publication number: 20150074587Abstract: A method of controlling a mobile terminal, and which includes displaying a touch keypad on a touch screen of the mobile terminal, the touch keypad including character input regions, at least one specific character input region including a first character symbol and a second character symbol; displaying an output window above the touch keypad, the output window displaying character symbols touched on the character input regions; receiving a touch selection signal indicating a touch selection of the specific character input region; as long as the received touch selection signal is received, displaying the keypad and a new character input region with the second character symbol being displayed larger than the second character symbol displayed in the specific character input region; and displaying the second character symbol in the output window when the touch selection is released from the new character input region.Type: ApplicationFiled: November 17, 2014Publication date: March 12, 2015Applicant: LG ELECTRONICS INC.Inventors: U-Beom HEO, Jeong-Hee AHN, Joo-Ho LEE, Kyung-Wook PARK
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Patent number: 8902169Abstract: A device, computer program product and method of inputting a character in a touch screen device, in which a touch area is partitioned into a plurality of array positions, and one or more letters are assigned to each of the partitioned array positions. The method comprises the steps of: partitioning a touch area of the touch panel into a plurality of array positions and assigning one or more characters to each of the partitioned array positions; sensing an expansion event of selecting one among the array positions; dividing the touch area into a plurality of selection positions and assigning the characters assigned to the array position selected by the expansion event to the respective selection positions; sensing a selection event of selecting one among the selection positions; and recognizing the character assigned to the selection position selected by the selection event as an input character.Type: GrantFiled: September 19, 2008Date of Patent: December 2, 2014Assignee: LG Electronics Inc.Inventors: U-Beom Heo, Jeong-Hee Ahn, Joo-Ho Lee, Kyung-Wook Park
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Publication number: 20140252394Abstract: Provided is a light emitting device. In one embodiment, a light emitting device including: a support member; a light emitting structure on the support member, the light emitting structure comprising a first conductive type semiconductor layer, a second conductive type semiconductor layer, and an active layer between the first conductive type semiconductor layer and the second conductive type semiconductor layer; a protective member at a peripheral region of an upper surface of the support member; an electrode including an upper portion being on the first conductive type semiconductor layer, a side portion extended from the upper portion and being on a side surface of the light emitting structure, and an extended portion extended from the side portion and being on the protective member; and an insulation layer between the side surface of the light emitting structure and the electrode.Type: ApplicationFiled: April 10, 2014Publication date: September 11, 2014Applicant: LG INNOTEK CO., LTD.Inventors: Jung Hyeok BAE, Young Kyu JEONG, Kyung Wook PARK, Duk Hyun PARK
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Publication number: 20140209965Abstract: Provided is a light emitting device. The light emitting device comprises: In one embodiment, a light emitting device includes: a light emitting structure comprising a first conductive type semiconductor layer, a second conductive type semiconductor layer, and an active layer between the first conductive type semiconductor layer and the second conductive type semiconductor layer; and a conductive support member under the light emitting structure. The conductive support member comprises a first conductive support member and a second conductive support member. The second conductive support member has a thermal conductivity higher than that of the first conductive support member.Type: ApplicationFiled: March 31, 2014Publication date: July 31, 2014Applicant: LG Innotek Co., Ltd.Inventors: Jung Hyeok BAE, Young Kyu Jeong, Kyung Wook Park, Duk Hyun Park
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Publication number: 20140191266Abstract: In one example embodiment, a light emitting device includes a transparent substrate and a transparent electrode on the transparent substrate, the transparent electrode comprising at least two transparent electrode layers, the at least two transparent electrode layers being successively stacked and having different refractive indices, the refractive index of one of the at least two transparent electrode layers that is closer to the transparent substrate being higher than the refractive index of the other one of the at least two transparent electrode layers. The light emitting device further includes a light emission layer on the transparent electrode and a reflective electrode on the light emission layer.Type: ApplicationFiled: January 2, 2014Publication date: July 10, 2014Applicants: Samsung Corning Precision Materials Co., Ltd., Samsung Electronics Co., Ltd.Inventors: Gae-hwang LEE, Jeong-woo PARK, Yoon-young KWON, Kyung-wook PARK, Mi-jeong SONG, Young-Zo YOO, Yong-wan JIN