Patents by Inventor Sang Oeb Na
Sang Oeb Na 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: 9718719Abstract: Disclosed is a float bath which allows easy temperature control according to an internal position, and a glass manufacturing apparatus and glass manufacturing method including the float bath. The float bath includes a plurality of heaters provided at an upper portion of the float bath to supply heat into the float bath, and a shield provided between predetermined heaters among the plurality of heaters to block heat transfer therebetween.Type: GrantFiled: February 25, 2014Date of Patent: August 1, 2017Assignee: LG CHEM, LTD.Inventors: Kyoung-Hoon Min, Ye-Hoon Im, Su-Chan Park, Sang-Oeb Na, Won-Jae Moon
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Patent number: 8894733Abstract: Disclosed is a method for recycling a cerium oxide abrasive. The method may include adding a strong alkali solution to a slurry waste of the cerium oxide abrasive, adding sodium fluoride to the slurry waste, and separating a cerium oxide particle included in the slurry waste from other kinds of particles.Type: GrantFiled: March 11, 2011Date of Patent: November 25, 2014Assignee: LG Chem, Ltd.Inventors: Won-Jae Moon, Sang-Oeb Na, Hyung-Young Oh
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Patent number: 8863554Abstract: A float bath for manufacturing a float glass includes a brick assembly composed of a plurality of bricks storing a molten metal so that a float glass is capable of moving forward while floating on the molten metal, a bottom casing for forming an outer side of the brick assembly, and an air blower installed away from the bottom casing to supply a cooling air toward the bottom casing. The air blower includes a plurality of nozzles having a diameter of about 30 mm and arranged with a pitch of about 250 mm to about 300 mm in order to cool the bottom casing to a predetermined temperature.Type: GrantFiled: August 11, 2011Date of Patent: October 21, 2014Assignee: LG Chem, Ltd.Inventors: Won-Jae Moon, Yang-Han Kim, Sang-Oeb Na, Jeong-Deok Kim, Heui-Joon Park, Jin Han, Woo-Hyun Kim, Dong-Shin Shin, Jae-Han Jun
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Publication number: 20140260429Abstract: An annealing apparatus for a float glass continuously anneals a glass ribbon molded in a float bath. The annealing apparatus includes a lehr housing having an inlet and an outlet for the glass ribbon, a plurality of lehr rolls rotatably installed to the lehr housing in a width direction of the lehr housing, and labyrinth seals installed between the lehr rolls and sidewalls of the lehr housing, respectively, to prevent sulfurous acid gas supplied into the lehr housing from discharging out.Type: ApplicationFiled: May 29, 2014Publication date: September 18, 2014Applicant: LG CHEM, LTD.Inventors: Woo-Hyun KIM, Sang-Oeb NA, Yang-Han KIM, Kil-Ho KIM, Heui-Joon PARK, Jin HAN, Dong-Shin SHIN
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Patent number: 8813521Abstract: A float bath for manufacturing glass includes a slot formed in a bottom block of the float bath in which a molten metal is to be filled, a barrier member capable of being inserted into the slot, a receiving portion formed in at least one side block that connects with the bottom block so as to communicate with the slot, and a placing member placed in the receiving portion to be connected to one end of the barrier member.Type: GrantFiled: March 26, 2012Date of Patent: August 26, 2014Assignee: LG Chem, Ltd.Inventors: Woo-Hyun Kim, Sang-Oeb Na, Won-Jae Moon, Jeong-Deok Kim, Kil-Ho Kim, Heui-Joon Park, Jin Han, Dong-Shin Shin
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Patent number: 8806898Abstract: An layout for a glass manufacturing system may include a hot process part having a batch plant for storing a glass raw material, a tank for melting the raw material and storing a molten glass, a float bath for forming the molten glass into a glass of a ribbon shape, an annealing lehr for cooling the glass ribbon, and a cold end connected to the annealing lehr, and an etching process part having a final cutting sector for cutting the glass provided from the cold end into sheet glasses of a preset final size, a beveling and etching sector for bevel the edges of the cut sheet glasses and etching the beveled sheet glasses, and a first inspection sector for inspecting the etched sheet glasses, and the hot process part and the etching process part may be connected by a single conveyor to form a continuous line.Type: GrantFiled: February 7, 2011Date of Patent: August 19, 2014Assignee: LG Chem, Ltd.Inventors: Jin Han, Sang-Oeb Na, Yang-Han Kim, Woo-Hyun Kim, Heui-Joon Park
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Patent number: 8794037Abstract: A float bath for manufacturing glass includes a slot formed in a bottom block of the float bath in which a molten metal is to be filled, a barrier member capable of being inserted into the slot, a receiving portion formed in at least one side block that connects with the bottom block so as to communicate with the slot, and a placing member placed in the receiving portion to be connected to one end of the barrier member.Type: GrantFiled: April 19, 2011Date of Patent: August 5, 2014Assignee: LG Chem, Ltd.Inventors: Woo-Hyun Kim, Sang-Oeb Na, Won-Jae Moon, Jeong-Deok Kim, Kil-Ho Kim, Heui-Joon Park, Jin Han, Dong-Shin Shin
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Patent number: 8769994Abstract: An annealing apparatus for a float glass continuously anneals a glass ribbon molded in a float bath. The annealing apparatus includes a lehr housing having an inlet and an outlet for the glass ribbon, a plurality of lehr rolls rotatably installed to the lehr housing in a width direction of the lehr housing, and labyrinth seals installed between the lehr rolls and sidewalls of the lehr housing, respectively, to prevent sulfurous acid gas supplied into the lehr housing from discharging out.Type: GrantFiled: May 31, 2011Date of Patent: July 8, 2014Assignee: LG Chem, Ltd.Inventors: Woo-Hyun Kim, Sang-Oeb Na, Yang-Han Kim, Kil-Ho Kim, Heui-Joon Park, Jin Han, Dong-Shin Shin
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Publication number: 20140174130Abstract: Disclosed is a float bath which allows easy temperature control according to an internal position, and a glass manufacturing apparatus and glass manufacturing method including the float bath. The float bath includes a plurality of heaters provided at an upper portion of the float bath to supply heat into the float bath, and a shield provided between predetermined heaters among the plurality of heaters to block heat transfer therebetween.Type: ApplicationFiled: February 25, 2014Publication date: June 26, 2014Applicant: LG CHEM, LTD.Inventors: Kyoung-Hoon MIN, Ye-Hoon IM, Su-Chan PARK, Sang-Oeb NA, Won-Jae MOON
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Patent number: 8758096Abstract: A glass setting plate for a glass polishing system supports a lower surface of a glass in a glass polishing system for polishing a glass used for liquid crystal displays. The glass setting plate is made of a composite material obtained by molding and curing a mixture of granite particles and thermosetting resin.Type: GrantFiled: October 7, 2010Date of Patent: June 24, 2014Assignee: LG Chem, Ltd.Inventors: Won-Jae Moon, Sang-Oeb Na, Hyung-Young Oh
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Patent number: 8656739Abstract: The present invention provides a method for manufacturing a float glass by floating the glass on a molten tin that is contained in a molten tin bath, which includes the steps of a) discharging a portion of the molten tin in the molten tin bath to the outside of the molten tin bath; b) removing oxygen dissolved in the molten tin that is discharged from the molten tin bath by injecting an oxygen stripping gas that contains hydrogen into the molten tin; and c) returning the molten tin from which oxygen is removed to the molten tin bath, and an apparatus for manufacturing the same.Type: GrantFiled: October 1, 2009Date of Patent: February 25, 2014Assignee: LG Chem, Ltd.Inventors: Sang-Oeb Na, Kil-Ho Kim, Yang-Han Kim, Hyung-Young Oh, Young-Sik Kim, Won-Jae Moon
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Patent number: 8616022Abstract: An apparatus for manufacturing a float glass includes a bottom block in which molten metal is stored and floats, a loop block which covers the bottom block and has at least one hole formed therethrough, a heater installed through the hole, and a fragment intercepting member for preventing fragments generated at the loop block from falling onto the bottom block through the hole.Type: GrantFiled: May 31, 2011Date of Patent: December 31, 2013Assignee: LG Chem, Ltd.Inventors: Woo-Hyun Kim, Sang-Oeb Na, Won-Jae Moon, Jeong-Deok Kim, Kil-Ho Kim, Heui-Joon Park, Jin Han, Dong-Shin Shin
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Patent number: 8602848Abstract: A system for polishing a float glass used for liquid crystal displays includes a lower unit configured to rotate a float glass to be polished, a head assembly configured to be rotatable in contact with the float glass, and a moving unit configured to move the head assembly in a horizontal direction, wherein the head assembly includes at least two heads that are rotatable, respectively.Type: GrantFiled: October 7, 2010Date of Patent: December 10, 2013Assignee: LG Chem, Ltd.Inventors: Won-Jae Moon, Hyung-Young Oh, Sang-Oeb Na
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Patent number: 8448469Abstract: The present invention provides a method for manufacturing a float glass by floating the glass on a molten tin that is contained in a molten tin bath, which includes the steps of a) discharging a portion of the molten tin in the molten tin bath to the outside of the molten tin bath; b) removing oxygen dissolved in the molten tin that is discharged from the molten tin bath by injecting an oxygen stripping gas that contains hydrogen into the molten tin; and c) returning the molten tin from which oxygen is removed to the molten tin bath, and an apparatus for manufacturing the same.Type: GrantFiled: January 24, 2012Date of Patent: May 28, 2013Assignee: LG Chem, Ltd.Inventors: Sang-Oeb Na, Kil-Ho Kim, Yang-Han Kim, Hyung-Young Oh, Young-Sik Kim, Won-Jae Moon
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Patent number: 8449355Abstract: A glass polishing system includes a lower unit capable of rotating a glass placed at a fixed position, an upper unit contacting with the glass and capable of being passively rotated due to the rotation of the glass, a moving unit for moving the upper unit in a horizontal or vertical direction, and a polishing slurry supply unit for supplying a polishing slurry to the glass through the upper unit.Type: GrantFiled: March 5, 2010Date of Patent: May 28, 2013Assignee: LG Chem, Ltd.Inventors: Won-Jae Moon, Sang-Oeb Na, Hyung-Young Oh, Yang-Han Kim, Young-Sik Kim, Kil-Ho Kim, Heui-Joon Park, Chang-Hee Lee
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Patent number: 8449351Abstract: A lower unit for a glass polishing system includes a support installed to a rotatable turntable, and a carrier having a supporting part for supporting a glass to be polished, and a placing part formed in a surface opposite to the supporting part and fixed and placed to the support.Type: GrantFiled: March 5, 2010Date of Patent: May 28, 2013Assignee: LG Chem, Ltd.Inventors: Won-Jae Moon, Sang-Oeb Na, Hyung-Young Oh, Yang-Han Kim, Young-Sik Kim, Kil-Ho Kim, Heui-Joon Park, Chang-Hee Lee, Dae-Yeon Lee, Jae-Ik Song, Wook Jeong, Young-Kuk Kim, Kyu-Chul Chung, Hyun-Chul Chung
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Patent number: 8297078Abstract: A float bath for manufacturing a float glass includes a brick assembly composed of a plurality of bricks to store a molten metal so that a float glass is capable of moving forward while floating on the molten metal, a bottom casing for forming an outer side of the brick assembly, and an air blower installed away from the bottom casing to supply a cooling air toward the bottom casing. The air blower is disposed so that the cooling air is injected toward gaps between the bricks.Type: GrantFiled: August 10, 2011Date of Patent: October 30, 2012Assignee: LG Chem, Ltd.Inventors: Won-Jae Moon, Yang-Han Kim, Sang-Oeb Na, Jeong-Deok Kim, Heui-Joon Park, Jin Han, Woo-Hyun Kim, Dong-Shin Shin, Jae-Han Jun
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Patent number: 8266925Abstract: An apparatus for manufacturing a float glass, including a float bath for storing a molten metal on which a molten glass flows, wherein the molten metal flows in the float bath, comprises an discharge opening formed through a wall of a downstream end of the float bath at the center of the wall to discharge a molten metal crashing against the wall and dross floating on the molten metal; and a pair of side channels formed inside of the wall and communicated with the discharge opening and both sides of the float bath.Type: GrantFiled: February 12, 2010Date of Patent: September 18, 2012Assignee: LG Chem, Ltd.Inventors: Sang-Oeb Na, Yang-Han Kim, Hyung-Young Oh, Young-Sik Kim, Won-Jae Moon, Kil-Ho Kim, Heui-Joon Park, Chang-Hee Lee
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Patent number: 8262437Abstract: A glass polishing system includes a lower unit capable of rotating a glass placed at a fixed position, an upper unit capable of contacting with the glass and being passively rotated due to the rotation of the glass, and a moving unit for moving the upper unit in a horizontal and/or vertical direction. The upper unit includes a platter installed to a spindle of the moving unit, a separative platter separatably installed to the platter and having a polishing pad contacting with the glass, and a vacuum chuck for fixing the separative platter with respect to the platter by means of vacuum.Type: GrantFiled: March 5, 2010Date of Patent: September 11, 2012Assignee: LG Chem Ltd.Inventors: Won-Jae Moon, Sang-Oeb Na, Hyung-Young Oh, Yang-Han Kim, Young-Sik Kim, Kil-Ho Kim, Heui-Joon Park, Chang-Hee Lee
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Publication number: 20120184427Abstract: An apparatus for manufacturing a float glass includes a float bath in which a molten glass moves on a surface of a floatable molten metal to form a glass ribbon, a casing deformation preventing member for allowing an inert gas to flow around an end casing at an outlet of the float bath to prevent the end casing from deforming, a dross box disposed adjacent to a downstream end of the float bath and having lift-out rollers for drawing the glass ribbon, an introduction member for introducing an inert gas into the dross box, and a recycling path for supplying an inert gas, which discharges from the casing deformation preventing member, to the introducing member.Type: ApplicationFiled: March 27, 2012Publication date: July 19, 2012Inventors: Woo-Hyun Kim, Sang-Oeb Na, Won-Jae Moon, Jeong-Deok Kim, Kil-Ho Kim, Heui-Joon Park, Jin Han, Dong-Shin Shin