Patents by Inventor Doo Sun Choi
Doo Sun Choi 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: 9342200Abstract: Disclosed is a touch panel including a cover window including an active area and an unactive area, and a first sensor part provided on the unactive area to control movement of a cursor on the active area.Type: GrantFiled: December 23, 2013Date of Patent: May 17, 2016Assignee: LG INNOTEK CO., LTD.Inventors: Kyung Nam Lee, Doo Sun Choi
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Patent number: 9324509Abstract: Disclosed is a touch panel. The touch panel includes an insulating layer, first sensing electrode patterns provided on one surface of the insulating layer, and second sensing electrode patterns provided on another surface opposite to the one surface of the insulating layer such that the second sensing electrode patterns are insulated from the first sensing electrode patterns. A bridge electrode is prevented from being viewed by the eyes of a user by removing the bridge electrode from the touch panel. The touch panel is constructed in a simpler structure, so that the production cost of the touch panel is reduced.Type: GrantFiled: May 31, 2013Date of Patent: April 26, 2016Assignee: LG INNOTEK CO., LTD.Inventors: Doo Sun Choi, Hyun Min Nah
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Patent number: 9287551Abstract: The present invention relates to an apparatus and method for manufacturing a battery terminal plate, and more particularly relates to an apparatus and method for manufacturing a battery terminal plate, in which a terminal plate for a secondary battery, such as a middle or large sized Lithium ion battery, which is applied to electric vehicles, hybrid vehicles, plug-in hybrid vehicles, solar cells, electric tools and so on, is processed by not pressing but forging, a shifting and supplying apparatus for shifting a material to be processed in each forming and processing step may be moved by the shortest distance through a shift-return method (one step shift-return), the material is previously processed by punching so as not to satisfy a standard of a design, and the firstly processed material is secondly processed to satisfy the standard.Type: GrantFiled: February 24, 2012Date of Patent: March 15, 2016Inventors: Tae In Kang, Young Su Kim, Doo Sun Choi
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Publication number: 20160059190Abstract: A liquid filtering structure having high filtering efficiency, excellent transparency, and excellent durability can be provided. The liquid filtering structure includes a filtering layer, wherein the filtering layer includes a nanopore structure unit including a plurality of nanopores and a functional group-containing compound including functional groups at one end, and has selectivity with respect to liquid molecules to be filtered, for example, water molecules, and effectively filter liquid, particularly water by preventing ions or compounds from being passed.Type: ApplicationFiled: January 30, 2015Publication date: March 3, 2016Inventors: Yeong-Eun Yoo, Jaesung Yoon, Jeong Hwan Kim, Doo-Sun Choi, Kyung-Hyun Whang, Nowon Kim, Yun Jung Lee, Seung Hyun Kim, Tae-Joon Jeon, Sun Min Kim, Young-Ho Seo, Daejoong Kim, Moon Ki Kim, Young-Rok Kim
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Patent number: 9211575Abstract: A method of manufacturing a roll for roll printing/roll imprinting is provided. The method includes preparing an exterior on one surface of which a printed pattern of a predetermined shape is formed and that has magnetic power and having the other surface of the exterior contact an external surface of a central roll so that the exterior is attached to the central roll having magnetic power by magnetic power. Therefore, the method of manufacturing a roll for roll printing/roll imprinting capable of reducing production cost to massively manufacture the roll for roll printing/roll imprinting is provided.Type: GrantFiled: December 9, 2011Date of Patent: December 15, 2015Assignee: KOREA INSTITUTE OF MACHINERY & MATERIALSInventors: Sung Hwan Chang, Jae Gu Kim, Jae-Sung Yoon, Yeong-Eun Yoo, Doo-Sun Choi
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Patent number: 8951782Abstract: An apparatus for separating cells using magnetic force includes: a separation channel portion including ferromagnetic particles, and provided with a flow path through which a cell fluid containing a plurality of cells having at least one of diamagnetic and paramagnetic properties; and a magnetic field controller that generates a magnetic field within the flow path so that the cells in the cell fluid flow within the flow path and are separated by height by a magnetic field. Accordingly, there are provided an apparatus for separating cells using magnetic force and a cell separation method using the same, by which cells can be easily separated using magnetic force.Type: GrantFiled: July 11, 2012Date of Patent: February 10, 2015Assignee: Korea Institute of Machinery & MaterialsInventors: Sung Hwan Chang, Yeong-Eun Yoo, Doo-Sun Choi, Kyung-Hyun Whang
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Publication number: 20140176831Abstract: Disclosed is a touch panel including a cover window including an active area and an unactive area, and a first sensor part provided on the unactive area to control movement of a cursor on the active area.Type: ApplicationFiled: December 23, 2013Publication date: June 26, 2014Applicant: LG INNOTEK CO., LTD.Inventors: Kyung Nam LEE, Doo Sun CHOI
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Publication number: 20140001017Abstract: Disclosed is a touch panel. The touch panel includes an insulating layer, first sensing electrode patterns provided on one surface of the insulating layer, and second sensing electrode patterns provided on another surface opposite to the one surface of the insulating layer such that the second sensing electrode patterns are insulated from the first sensing electrode patterns. A bridge electrode is prevented from being viewed by the eyes of a user by removing the bridge electrode from the touch panel. The touch panel is constructed in a simpler structure, so that the production cost of the touch panel is reduced.Type: ApplicationFiled: May 31, 2013Publication date: January 2, 2014Inventors: Doo Sun CHOI, Hyun Min NAH
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Publication number: 20130288226Abstract: An apparatus for separating cells using magnetic force includes: a separation channel portion including ferromagnetic particles, and provided with a flow path through which a cell fluid containing a plurality of cells having at least one of diamagnetic and paramagnetic properties; and a magnetic field controller that generates a magnetic field within the flow path so that the cells in the cell fluid flow within the flow path and are separated by height by a magnetic field. Accordingly, there are provided an apparatus for separating cells using magnetic force and a cell separation method using the same, by which cells can be easily separated using magnetic force.Type: ApplicationFiled: July 11, 2012Publication date: October 31, 2013Applicant: KOREA INSTITUTE OF MACHINERY & MATERIALSInventors: Sung Hwan Chang, Yeong-Eun Yoo, Doo-Sun Choi, Kyung-Hyun Whang
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Publication number: 20130263453Abstract: A method of manufacturing a roll for roll printing/roll imprinting is provided. The method includes preparing an exterior on one surface of which a printed pattern of a predetermined shape is formed and that has magnetic power and having the other surface of the exterior contact an external surface of a central roll so that the exterior is attached to the central roll having magnetic power by magnetic power. Therefore, the method of manufacturing a roll for roll printing/roll imprinting capable of reducing production cost to massively manufacture the roll for roll printing/roll imprinting is provided.Type: ApplicationFiled: December 9, 2011Publication date: October 10, 2013Applicant: KOREA INSTITUTE OF MACHINERY & MATERIALSInventors: Sung Hwan Chang, Jae Gu Kim, Jae-Sung Yoon, Yeong-Eun Yoo, Doo-Sun Choi
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Publication number: 20110223335Abstract: A device for forming a surface pattern of fluid includes: fluid that can be hardened under a predetermined condition; a base unit to which the fluid is applied; and a vibration unit for vibrating the applied fluid to form a waveform on a surface of the fluid. A method for forming a surface pattern of fluid includes: a fluid receiving stage for applying fluid to a base unit; a vibration stage for vibrating the fluid applied to the base unit to form a waveform on a surface of the fluid; and a hardening stage for hardening the fluid on which the waveform is formed. The disclosed device for forming a surface pattern of fluid and the forming method thereof have an advantage of easily forming various waveform patterns on the surface of the fluid by a vibration unit for vibrating the fluid with various waveforms, frequencies, and amplitudes.Type: ApplicationFiled: February 10, 2009Publication date: September 15, 2011Inventors: Jae-Sung Yoon, Doo-Sun Choi, Yeong-Eun Yoo
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Patent number: 7988785Abstract: The present invention provides a printing head for nano patterning including a manifold for accommodating a liquid printing material, a cartridge with an injection chamber communicating with the manifold, and a sample holder for patterning installed outside the injection chamber of the cartridge.Type: GrantFiled: March 30, 2010Date of Patent: August 2, 2011Assignee: Korea Institute of Machinery & MaterialsInventors: Dong-Soo Kim, Won-Hee Lee, Taek-Min Lee, Doo-Sun Choi, Byung-Oh Choi
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Patent number: 7981345Abstract: Disclosed is a fabrication method of products with closed channels by injection molding, which includes: a channel substrate mounting step of mounting a channel substrate comprising a plurality of opened micro-channels thereon to a mold; and a substrate cover molding step of molding a substrate cover by the injection molding on an upper surface of the channel substrate mounted to the mold, the substrate cover being coupled to the channel substrate while being molded. With this, the products with the closed channels can be fabricated without any additional coupling process between the channel substrate having the opened channels and the substrate cover, thereby simplifying a fabrication process and enhancing work efficiency.Type: GrantFiled: February 12, 2009Date of Patent: July 19, 2011Assignee: Korea Institute of Machinery and MaterialsInventors: Yeong-Eun Yoo, Doo-Sun Choi, Young-Ho Seo, Tae-Hoon Kim
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Patent number: 7887635Abstract: The present invention provides a printing head for nano patterning including a manifold for accommodating a liquid printing material, a cartridge with an injection chamber communicating with the manifold, and a sample holder for patterning installed outside the injection chamber of the cartridge.Type: GrantFiled: May 4, 2006Date of Patent: February 15, 2011Assignee: Korea Institute of Machinery & MaterialsInventors: Dong-Soo Kim, Won-Hee Lee, Taek-Min Lee, Doo-Sun Choi, Byung-Oh Choi
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Publication number: 20100201028Abstract: Disclosed is a fabrication method of products with closed channels by injection molding, which includes: a channel substrate mounting step of mounting a channel substrate comprising a plurality of opened micro-channels thereon to a mold; and a substrate cover molding step of molding a substrate cover by the injection molding on an upper surface of the channel substrate mounted to the mold, the substrate cover being coupled to the channel substrate while being molded. With this, the products with the closed channels can be fabricated without any additional coupling process between the channel substrate having the opened channels and the substrate cover, thereby simplifying a fabrication process and enhancing work efficiency.Type: ApplicationFiled: February 12, 2009Publication date: August 12, 2010Inventors: Yeong-Eun Yoo, Doo-Sun Choi, Young-Ho Seo, Tae-Hoon Kim
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Publication number: 20100188449Abstract: The present invention provides a printing head for nano patterning including a manifold for accommodating a liquid printing material, a cartridge with an injection chamber communicating with the manifold, and a sample holder for patterning installed outside the injection chamber of the cartridge.Type: ApplicationFiled: March 30, 2010Publication date: July 29, 2010Applicant: KOREA INSTITUTE OF MACHINERY & MATERIALSInventors: Dong-Soo KIM, Won-Hee LEE, Taek-Min LEE, Doo-Sun CHOI, Byung-Oh CHOI
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Publication number: 20090302506Abstract: Provided are ultra water repellent film manufacturing equipment capable of continuous manufacturing of an ultra water repellent film through casting and separating a hydrophilic or hydrophobic polymer on an outer surface of a rotating belt, and an ultra water repellent film manufacturing method using the equipment. The equipment includes the rotating belt wound around rollers to continuously rotate, a polymer supplying member (120) containing a liquid polymer (M) to supply onto the rotating belt (110), a thickness controlling member (130) for controlling the supplied liquid polymer in thickness, a polymer drying member (140) for drying the liquid polymer controlled in thickness, a film separating member (150) for separating an ultra water repellent film (F) from the rotating belt, a rotating belt cleaning member (160) for cleaning an outer surface of the rotating belt after film separation, and a surface reforming member (170) for reforming the outer surface of the cleaned rotating belt.Type: ApplicationFiled: December 19, 2008Publication date: December 10, 2009Inventors: Jong Joo Rha, Gun Hwan Lee, Kyung Hyun Hwang, Doo Sun Choi
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Patent number: 7138748Abstract: The present invention relates to a method of enlarging a travel of a piezoelectric sensor and a MEMS switch employing an enlarging means employing the leverage theory. In accordance with the present invention, there is provided a MEMS switch capable of using a relatively low voltage, less than 5V, lowering power consumption isolation and insertion loss, and having application to a wide range of wireless communication systems such as PCS and wireless LAN.Type: GrantFiled: March 30, 2004Date of Patent: November 21, 2006Assignee: Korea Institute of Machinery & MaterialsInventors: Doo Sun Choi, Taik Min Lee, Tae Jin Jae, Kyung Hyun Hwang
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Publication number: 20060201355Abstract: The present invention provides a printing head for nano patterning including a manifold for accommodating a liquid printing material, a cartridge with an injection chamber communicating with the manifold, and a sample holder for patterning installed outside the injection chamber of the cartridge.Type: ApplicationFiled: May 4, 2006Publication date: September 14, 2006Applicant: Korea Institute of Machinery & MaterialsInventors: Dong-Soo Kim, Won-Hee Lee, Taek-Min Lee, Doo-Sun Choi, Byung-Oh Choi
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Publication number: 20040264878Abstract: The present invention relates to a method of enlarging a travel of piezoelectric sensor and a MEMS switch employing the enlarged travel of piezoelectric sensor. The MEMS switch provided with an enlarging means employing the leverage theory. In accordance with the present invention, there is provided a MEMS switch capable of using a relatively low voltage less than 5V, lowering a power consumption, isolation and insertion loss, and applying to wide range of wireless communication such as PCS, wireless LAN etc.Type: ApplicationFiled: March 30, 2004Publication date: December 30, 2004Inventors: Doo Sun Choi, Taik Min Lee, Tae Jin Jae, Kyung Hyun Hwang