Patents by Inventor Hyun-je Cho
Hyun-je Cho 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: 9192041Abstract: The present invention is to solve the problems described above and to provide the plasma torch nozzle of graphite material coupled to the front electrode of the plasma torch by bolts. To achieve the object of the invention, the plasma torch nozzle according to this invention is characterized by that the torch nozzle is fixedly coupled to the front electrode of the plasma torch by one or more bolts.Type: GrantFiled: December 18, 2013Date of Patent: November 17, 2015Assignee: Korea Hydro & Nuclear Power Co., Ltd.Inventors: Hyun Je Cho, Cheon Woo Kim, Young Il Kim, Sang Woo Lee, Seung Chul Park, Jong Gil Park, Tae Won Hwang
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Patent number: 9183958Abstract: Provided is a vitrification process method of aluminum and filter radioactive wastes to produce high quality of glass solidification fit for legislations and rules as vitrification final product, comprising developing frit composition needed in vitrifying the aluminum and filter radioactive wastes, suitably mixing the aluminum and filter radioactive wastes with the frit and producing glass solidification having composition range of oxides of aluminum and filter radioactive wastes to maintain lower than 100 poise viscosity which is operating parameter of a melting furnace. The vitrification process method of aluminum and filter radioactive wastes comprise mixing the aluminum and filter radioactive wastes with the frit in an induction heating low temperature melting furnace and meting it at the temperature of 1,100˜1,200° C. to produce glass solidification.Type: GrantFiled: November 5, 2013Date of Patent: November 10, 2015Assignee: Korea Hydro & Nuclear Power Co., Ltd.Inventors: Hyun Je Cho, Young Il Kim, Hyun Jun Jo, Cheon Woo Kim
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Publication number: 20150126795Abstract: Provided is a vitrification process method of aluminum and filter radioactive wastes to produce high quality of glass solidification fit for legislations and rules as vitrification final product, comprising developing frit composition needed in vitrifying the aluminum and filter radioactive wastes, suitably mixing the aluminum and filter radioactive wastes with the frit and producing glass solidification having composition range of oxides of aluminum and filter radioactive wastes to maintain lower than 100 poise viscosity which is operating parameter of a melting furnace. The vitrification process method of aluminum and filter radioactive wastes comprise mixing the aluminum and filter radioactive wastes with the frit in an induction heating low temperature melting furnace and meting it at the temperature of 1,100˜1,200° C. to produce glass solidification.Type: ApplicationFiled: November 5, 2013Publication date: May 7, 2015Applicant: KOREA HYDRO & NUCLEAR POWER CO., LTD.Inventors: Hyun Je CHO, Young II KIM, Hyun Jun JO, Cheon Woo KIM
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Publication number: 20150102019Abstract: The present invention is to solve the problems described above and to provide the plasma torch nozzle of graphite material coupled to the front electrode of the plasma torch by bolts. To achieve the object of the invention, the plasma torch nozzle according to this invention is characterized by that the torch nozzle is fixedly coupled to the front electrode of the plasma torch by one or more bolts.Type: ApplicationFiled: December 18, 2013Publication date: April 16, 2015Applicant: KOREA HYDRO & NUCLEAR POWER CO., LTD.Inventors: Hyun Je CHO, Cheon Woo KIM, Young Il KIM, Sang Woo LEE, Seung Chul PARK, Jong Gil PARK, Tae Won HWANG
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Publication number: 20150098484Abstract: A tapping device and method using induction heat for melt comprises melting furnace made of steel; heating unit disposed in the upper part in the melting furnace and made of graphite material; induction coil wound around the heating unit; insulator disposed adjacent to the bottom surface of the lower part of the melting furnace; supporter disposed outside the insulator; and firebricks disposed on the bottom surface of melting furnace and outside the supporter.Type: ApplicationFiled: December 30, 2013Publication date: April 9, 2015Applicant: KOREA HYDRO & NUCLEAR POWER CO., LTD.Inventors: Hyun Je CHO, Cheon Woo KIM, Young Il KIM, Sang Woo LEE, Seung Chul PARK, Jong Gil PARK, Tae Won HWANG
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Patent number: 8946498Abstract: An apparatus and method for the granulation of radioactive waste in which a preprocessing method for the vitrification of radioactive waste is simplified to conform to onsite conditions of a nuclear power plant, additives are improved, and pellets suitable for vitrification are manufactured. The apparatus for the granulation of radioactive waste includes: a body frame having an inlet and an outlet; a hopper supplying the radioactive waste to be transferred and fed through the inlet; a feeder transferring/supplying the radioactive waste supplied to a specific position and in a certain quantity; a stirrer pulverizing/mixing lumps of the radioactive waste supplied; an additive supply part supplying a lubricant to the radioactive waste fed into the stirrer; and a pellet press pressing the radioactive waste fed through the feeder into a pellet shape and discharging the pellet through the outlet.Type: GrantFiled: September 27, 2010Date of Patent: February 3, 2015Assignee: Korea Hydro Nuclear Power Co., LtdInventors: Hyun-je Cho, Deuk-man Kim, Cheon-woo Kim, Jong-kil Park, Young-bu Choi
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Patent number: 8770118Abstract: An oxygen supplying apparatus of a melting furnace, in which waste contained within the melting furnace is stirred by using an oxygen supplying member of the melting furnace, includes an air cooling member provided in a through hole formed on the melting furnace and mounted on the oxygen supplying member to allow an outside air to enter thereto.Type: GrantFiled: May 8, 2012Date of Patent: July 8, 2014Assignee: Korea Hydro & Nuclear Power Co., Ltd.Inventors: Hyun Je Cho, Deuk Man Kim, Seok Mo Choi, Cheon Woo Kim, Tae Won Hwang
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Patent number: 8767794Abstract: A low temperature melting furnace using an external cooling passage includes a wall including a plurality of metal sectors, each metal sector including a cooling passage formed along a longitudinal direction thereof, and an extension tube provided outwardly from the wall and connected to the cooling passage.Type: GrantFiled: May 10, 2012Date of Patent: July 1, 2014Assignee: Korea Hydro & Nuclear Power Co., Ltd.Inventors: Hyun Je Cho, Deuk Man Kim, Seok Mo Choi, Cheon Woo Kim, Jung Kwon Son, Tae Won Hwang
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Patent number: 8718114Abstract: An induction melting furnace having an asymmetrical sloping bottom. The melting furnace includes: an induction coil member provided on the melting furnace so as to melt waste contained in the furnace by vitrification; a bottom unit provided in a lower part of the melting furnace, the bottom unit asymmetrically sloping downward in a direction toward a glass discharge port that is formed through the bottom unit; and a cooling member integrated with the bottom unit. Due to the asymmetrical sloping bottom of the furnace, waste in the furnace can be completely melted and can be easily discharged to the outside and, accordingly, the time and cost required to treat the waste are reduced and this improves work efficiency when treating the waste. Further, due to the insulation material, the melting furnace can be protected from electric damage that may be caused by electric arc.Type: GrantFiled: February 15, 2012Date of Patent: May 6, 2014Assignee: Korea Hydro & Nuclear Power Co., Ltd.Inventors: Hyun Jun Jo, Deuk Man Kim, Seok Mo Choi, Hyun Je Cho, Seung Chul Park, Cheon Woo Kim, Tae Won Hwang
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Publication number: 20130283862Abstract: A molten glass discharging device provided in the bottom of a melting furnace of a waste vitrification apparatus so that the device can control the melting or cooling of a molten material. The molten glass discharging device, which is provided in the bottom of the furnace and controls discharging of a molten material, includes: an induction heating unit (110) having a discharging passage (10) along a discharging port formed in the bottom of the melting furnace; an induction coil (120) provided outside the induction heating unit (110); and a cooling unit (130) supporting the induction heating unit (110) and having a cooling conduit through which a cooling fluid circulates. The device can realize repeated discharging of the molten material by induction heating or cooling of the induction heating unit. Further, even when glass is adhered to the discharging port, the adhered glass can be easily discharged from the furnace.Type: ApplicationFiled: February 15, 2012Publication date: October 31, 2013Applicant: Korea Hydro & Nuclear Power Co., Ltd.Inventors: Deuk Man Kim, Seok Mo Choi, Hyun Jun Jo, Hyun Je Cho, Seung Chul Park, Cheon Woo Kim, Tae Won Hwang
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Publication number: 20130266037Abstract: An induction melting furnace having an asymmetrical sloping bottom. The melting furnace includes: an induction coil member provided on the melting furnace so as to melt waste contained in the furnace by vitrification; a bottom unit provided in a lower part of the melting furnace, the bottom unit asymmetrically sloping downward in a direction toward a glass discharge port that is formed through the bottom unit; and a cooling member integrated with the bottom unit. Due to the asymmetrical sloping bottom of the furnace, waste in the furnace can be completely melted and can be easily discharged to the outside and, accordingly, the time and cost required to treat the waste are reduced and this improves work efficiency when treating the waste. Further, due to the insulation material, the melting furnace can be protected from electric damage that may be caused by electric arc.Type: ApplicationFiled: February 15, 2012Publication date: October 10, 2013Applicant: KOREA HYDRO & NUCLEAR POWER CO., LTD.Inventors: Hyun Jun Jo, Deuk Man Kim, Seok Mo Choi, Hyun Je Cho, Seung Chul Park, Cheon Woo Kim, Tae Won Hwang
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Publication number: 20130235896Abstract: The present invention provides a metal sector and a cold crucible induction melter having the same. The cold crucible induction melter includes a wall formed of a plurality of metal sectors insulated by an insulator. Each metal sector includes an outer curved portion which forms an outer surface of the wall and is convex outward relative to the wall, an inner planar portion which forms an inner surface of the wall, and a side planar portion which connects the outer curved portion to the inner planar portion.Type: ApplicationFiled: September 26, 2011Publication date: September 12, 2013Applicant: KOREA HYDRO & NUCLEAR POWER CO., LTD.Inventors: Cheon Woo Kim, Deuk Man Kim, Seok Mo Choi, Hyun Jun Jo, Hyun Je Cho, Seung Chul Park, Tae Won Hwang
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Publication number: 20130223471Abstract: The present invention provides a metal sector and a cold crucible induction melter having the same. The cold crucible induction melter includes a wall formed of a plurality of metal sectors insulated by an insulator. Each metal sector includes an inner curved portion which forms an inner surface of the wall and is convex inward relative to the wall, an outer planar portion which forms an outer surface of the wall, and a side planar portion which connects the inner curved portion to the outer planar portion.Type: ApplicationFiled: September 26, 2011Publication date: August 29, 2013Applicant: KOREA HYDRO & NUCLEAR POWER CO., LTD.Inventors: Cheon Woo Kim, Deuk Man Kim, Seok Mo Choi, Hyun Jun Jo, Hyun Je Cho, Seung Chul Park, Tae Won Hwang
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Publication number: 20130208756Abstract: A low temperature melting furnace having improved cooling flow includes a wall including a plurality of metal sectors, wherein a metal sector includes a first metal sector and a second metal sector, which are formed in one unit, and a cooling passage through which a cooling water flows is formed in each of the first metal sector and the second metal sector, the first metal sector and the second metal sector being connected to each other through a connection unit.Type: ApplicationFiled: May 10, 2012Publication date: August 15, 2013Applicant: KOREA HYDRO & NUCLEAR POWER CO., LTD.Inventors: Hyun Je CHO, Deuk Man KIM, Seok Mo CHOI, Cheon Woo KIM, Jung Kwon SON, Tae Won HWANG
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Publication number: 20130208757Abstract: A low temperature melting furnace using an external cooling passage includes a wall including a plurality of metal sectors, each metal sector including a cooling passage formed along a longitudinal direction thereof, and an extension tube provided outwardly from the wall and connected to the cooling passage.Type: ApplicationFiled: May 10, 2012Publication date: August 15, 2013Applicant: KOREA HYDRO & NUCLEAR POWER CO., LTD.Inventors: Hyun Je CHO, Deuk Man KIM, Seok Mo CHOI, Cheon Woo KIM, Jung Kwon SON, Tae Won HWANG
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Patent number: 8498320Abstract: A melting furnace includes a gas supplying unit configured to protrude inwardly of the melting furnace to supply a gas to the melting furnace, the gas supplying unit including a gas supplying pipe configured to penetrate the melting furnace to protrude inwardly of the melting furnace and configured to have a nozzle hole formed at a front end thereof; and a cooling passage pipe provided outside the gas supplying pipe to include a second cooling passage through which a cooling liquid flows, the second cooling passage being directly connected to a first cooling passage through which the cooling liquid is circulated along a wall of the melting furnace.Type: GrantFiled: May 8, 2012Date of Patent: July 30, 2013Assignee: Korea Hydro & Nuclear Power Co., Ltd.Inventors: Deuk Man Kim, Hyun Je Cho, Seok Mo Choi, Cheon Woo Kim, Tae Won Hwang
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Publication number: 20130178685Abstract: An apparatus and method for the granulation of radioactive waste in which a preprocessing method for the vitrification of radioactive waste is simplified to conform to onsite conditions of a nuclear power plant, additives are improved, and pellets suitable for vitrification are manufactured. The apparatus for the granulation of radioactive waste includes: a body frame having an inlet and an outlet; a hopper supplying the radioactive waste to be transferred and fed through the inlet; a feeder transferring/supplying the radioactive waste supplied to a specific position and in a certain quantity; a stirrer pulverizing/mixing lumps of the radioactive waste supplied; an additive supply part supplying a lubricant to the radioactive waste fed into the stirrer; and a pellet press pressing the radioactive waste fed through the feeder into a pellet shape and discharging the pellet through the outlet.Type: ApplicationFiled: September 27, 2010Publication date: July 11, 2013Inventors: Hyun-je Cho, Deuk-man Kim, Cheon-woo Kim, Jong-kil Park, Young-bu Choi
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Publication number: 20130068420Abstract: An oxygen supplying apparatus of a melting furnace, in which waste contained within the melting furnace is stirred by using an oxygen supplying member of the melting furnace, includes an air cooling member provided in a through hole formed on the melting furnace and mounted on the oxygen supplying member to allow an outside air to enter thereto.Type: ApplicationFiled: May 8, 2012Publication date: March 21, 2013Applicant: KOREA HYDRO & NUCLEAR POWER CO., LTD.Inventors: Hyun Je CHO, Deuk Man Kim, Seok Mo Choi, Cheon Woo Kim, Tae Won Hwang
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Publication number: 20130070803Abstract: A melting furnace includes a gas supplying unit configured to protrude inwardly of the melting furnace to supply a gas to the melting furnace, the gas supplying unit including a gas supplying pipe configured to penetrate the melting furnace to protrude inwardly of the melting furnace and configured to have a nozzle hole formed at a front end thereof; and a cooling passage pipe provided outside the gas supplying pipe to include a second cooling passage through which a cooling liquid flows, the second cooling passage being directly connected to a first cooling passage through which the cooling liquid is circulated along a wall of the melting furnace.Type: ApplicationFiled: May 8, 2012Publication date: March 21, 2013Applicant: KOREA HYDRO & NUCLEAR POWER CO., LTD.Inventors: Deuk Man KIM, Hyun Je Cho, Seok Mo Choi, Cheon Woo Kim, Tae Won Hwang
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Patent number: 7453689Abstract: The present general inventive concept relates to a portable computer including a computer main body, a display main body coupled with the computer main body, a main board provided in the computer main body, a keyboard provided in the computer main body and disposed in parallel with the main board without overlapping with the main board, and an auxiliary memory provided in the computer main body and disposed in parallel with the main board and the keyboard without overlapping with the main board and the keyboard. Thus, the present general inventive concept provides a portable computer having an improved structure to minimize its thickness.Type: GrantFiled: November 1, 2005Date of Patent: November 18, 2008Assignee: Samsung Electronics Co., LtdInventors: Yong-duck Kim, Hyun-je Cho, Jong-ho Song