Patents by Inventor Tong-jin Park
Tong-jin 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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Patent number: 9782861Abstract: A metal sheet holding device for manufacturing a pattern mask used in manufacturing processes of a flat panel displays include a first holder and second holder. The first holder includes an adhesive layer contacting edge portions of a metal sheet, and a first frame supporting the metal sheet using the adhesive layer. The second holder includes a second frame below the first frame, a supported plate positioned at the center of the second frame, and an adhered unit positioned between the central portion of a metal sheet and the supported plate. The adhered unit generates an electrostatic force or a magnetic force to hold the central portion of the metal sheet.Type: GrantFiled: October 1, 2013Date of Patent: October 10, 2017Assignee: Samsung Display Co., Ltd.Inventors: Choong-Ho Lee, Sung-Sik Yun, Tong-Jin Park, Doh-Hyoung Lee
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Patent number: 9656291Abstract: Disclosed is a method of manufacturing a metal mask. A method of manufacturing a metal mask in accordance with an exemplary embodiment of the present invention includes forming through holes in a plate using a laser, by scanning the laser onto sequentially smaller overlapping portions of the plate.Type: GrantFiled: September 4, 2014Date of Patent: May 23, 2017Assignee: Samsung Display Co., Ltd.Inventors: Choong Ho Lee, Tong-Jin Park, Doh-Hyoung Lee, Sung Sik Yun, Da Hee Jeong, Jun Ho Jo
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Patent number: 9643280Abstract: A laser processing apparatus includes: a laser generator that generates a laser beam, a diffractive optical element that divides the laser beam generated by the laser generator into a plurality of sub-laser beams, and a beam gap adjustor that adjusts a gap between neighboring ones of the plurality of sub-laser beams. Therefore, by installing a diffractive optical element that divides a laser beam that is generated by the laser generator into the plurality of sub-laser beams and a beam gap adjustor to adjust a gap between a plurality of sub-laser beams, the laser processing apparatus can form a processing pattern of various resolutions in a shadow mask while improving a processing speed of the shadow mask.Type: GrantFiled: November 20, 2013Date of Patent: May 9, 2017Assignees: Samsung Display Co., Ltd., FRAUNHOFER-GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG E.V.Inventors: Doh-Hyoung Lee, Choong-Ho Lee, Sung-Sik Yun, Tong-Jin Park, Arnold Gillner, Nelli Hambach, Stephan Eifel, Jens Holtkamp, Lasse Büsing, Alexander Gatej
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Patent number: 9592570Abstract: A laser processing apparatus includes a laser generator for generating laser beams, a diffraction optic element for dividing the laser beam generated by the laser generator into a plurality of sub-laser beams, and a beam number controller for controlling the number of the plurality of sub-laser beams. Accordingly, the diffractive optic element that splits a laser beam generated by the laser beam generator into a plurality of sub-laser beams and the beam number controller that controls the number of sub-laser beams are provided so that the processing speed of a processing target can be improved and, at the same time, the number of laser beams can be promptly controlled, thereby promptly forming various patterns of the processing target.Type: GrantFiled: June 17, 2013Date of Patent: March 14, 2017Assignees: Samsung Display Co., Ltd., FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.Inventors: Doh-Hyoung Lee, Choong-Ho Lee, Sung-Sik Yun, Tong-Jin Park, Arnold Gillner, Nelli Hambach, Stephan Eifel, Jens Holtkamp, Lasse Büsing, Alexander Gatej
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Patent number: 9502478Abstract: An organic material deposition device configured to sense a deposition amount of an organic material deposited in a vacuum chamber by detecting a back propagation characteristic variation of a passive radio frequency identification (RFID) sensor. The organic material deposition device includes: a chamber configured to perform an organic material deposition process therein; a deposition source mounted in the chamber to vaporize an organic material; a deposition mask mounted to face the deposition source and configured to bond a substrate at an opposite side to the deposition source; an antenna mounted in the chamber to receive back propagation from a radio frequency identification (RFID) sensor; and a radio frequency (RF) reader connected to the antenna to measure an organic material deposition amount from a variation of the back propagation.Type: GrantFiled: May 16, 2014Date of Patent: November 22, 2016Assignee: Samsung Display Co., Ltd.Inventors: Tong-Jin Park, Joo Hwa Lee
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Patent number: 9452493Abstract: A laser processing apparatus includes a laser generator for generating laser beams, a diffraction optic element for dividing the laser beam generated by the laser generator into a plurality of sub-laser beams, and a beam number controller for controlling the number of the plurality of sub-laser beams. Accordingly, the diffractive optic element that splits a laser beam generated by the laser beam generator into a plurality of sub-laser beams and the beam number controller that controls the number of sub-laser beams are provided so that the processing speed of a processing target can be improved and, at the same time, the number of laser beams can be promptly controlled, thereby promptly forming various patterns of the processing target.Type: GrantFiled: June 17, 2013Date of Patent: September 27, 2016Assignees: Samsung Display Co., Ltd., FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.Inventors: Doh-Hyoung Lee, Choong-Ho Lee, Sung-Sik Yun, Tong-Jin Park
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Patent number: 9399305Abstract: A sheet cutting apparatus and a sheet cutting method using the same are disclosed. In one aspect, the sheet cutting apparatus includes a holder for rotatably supporting a sheet roll, a lamination unit for pulling and unwinding a front end of the sheet unwound from the sheet roll, a table on which the sheet unwound by the lamination parts is attached, and a tension unit for giving tension to the sheet attached on the table. Since the sheet cutting apparatus may cut the sheet consistently and stably, product quality and production efficiency should increase.Type: GrantFiled: August 27, 2013Date of Patent: July 26, 2016Assignee: Samsung Display Co., Ltd.Inventors: Sung-Sik Yun, Choong-Ho Lee, Tong-Jin Park, Doh-Hyoung Lee
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Publication number: 20150084011Abstract: An organic material deposition device configured to sense a deposition amount of an organic material deposited in a vacuum chamber by detecting a back propagation characteristic variation of a passive radio frequency identification (RFID) sensor. The organic material deposition device includes: a chamber configured to perform an organic material deposition process therein; a deposition source mounted in the chamber to vaporize an organic material; a deposition mask mounted to face the deposition source and configured to bond a substrate at an opposite side to the deposition source; an antenna mounted in the chamber to receive back propagation from a radio frequency identification (RFID) sensor; and a radio frequency (RF) reader connected to the antenna to measure an organic material deposition amount from a variation of the back propagation.Type: ApplicationFiled: May 16, 2014Publication date: March 26, 2015Applicant: Samsung Display Co., Ltd.Inventors: Tong-Jin PARK, Joo Hwa Lee
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Publication number: 20150068455Abstract: Disclosed is a method of manufacturing a metal mask. A method of manufacturing a metal mask in accordance with an exemplary embodiment of the present invention includes forming through holes in a plate using a laser, by scanning the laser onto sequentially smaller overlapping portions of the plate.Type: ApplicationFiled: September 4, 2014Publication date: March 12, 2015Inventors: Choong Ho LEE, Tong-Jin Park, Doh-Hyoung Lee, Sung Sik Yun, Da Hee Jeong, Jun Ho Jo
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Publication number: 20140312546Abstract: A metal sheet holding device for manufacturing a pattern mask used in manufacturing processes of a flat panel displays include a first holder and second holder. The first holder includes an adhesive layer contacting edge portions of a metal sheet, and a first frame supporting the metal sheet using the adhesive layer. The second holder includes a second frame below the first frame, a supported plate positioned at the center of the second frame, and an adhered unit positioned between the central portion of a metal sheet and the supported plate. The adhered unit generates an electrostatic force or a magnetic force to hold the central portion of the metal sheet.Type: ApplicationFiled: October 1, 2013Publication date: October 23, 2014Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Choong-Ho Lee, Sung-Sik Yun, Tong-Jin Park, Doh-Hyoung Lee
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Publication number: 20140177055Abstract: A laser processing apparatus includes: a laser generator that generates a laser beam, a diffractive optical element that divides the laser beam generated by the laser generator into a plurality of sub-laser beams, and a beam gap adjustor that adjusts a gap between neighboring ones of the plurality of sub-laser beams. Therefore, by installing a diffractive optical element that divides a laser beam that is generated by the laser generator into the plurality of sub-laser beams and a beam gap adjustor to adjust a gap between a plurality of sub-laser beams, the laser processing apparatus can form a processing pattern of various resolutions in a shadow mask while improving a processing speed of the shadow mask.Type: ApplicationFiled: November 20, 2013Publication date: June 26, 2014Inventors: Doh-Hyoung LEE, Choong-Ho LEE, Sung-Sik YUN, Tong-Jin PARK
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Publication number: 20140130647Abstract: A sheet cutting apparatus and a sheet cutting method using the same are disclosed. In one aspect, the sheet cutting apparatus includes a holder for rotatably supporting a sheet roll, a lamination unit for pulling and unwinding a front end of the sheet unwound from the sheet roll, a table on which the sheet unwound by the lamination parts is attached, and a tension unit for giving tension to the sheet attached on the table. Since the sheet cutting apparatus may cut the sheet consistently and stably, product quality and production efficiency should increase.Type: ApplicationFiled: August 27, 2013Publication date: May 15, 2014Applicant: Samsung Display Co., Ltd.Inventors: Sung-Sik Yun, Choong-Ho Lee, Tong-Jin Park, Doh-Hyoung Lee
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Publication number: 20140076869Abstract: A laser processing apparatus includes a laser generator for generating laser beams, a diffraction optic element for dividing the laser beam generated by the laser generator into a plurality of sub-laser beams, and a beam number controller for controlling the number of the plurality of sub-laser beams. Accordingly, the diffractive optic element that splits a laser beam generated by the laser beam generator into a plurality of sub-laser beams and the beam number controller that controls the number of sub-laser beams are provided so that the processing speed of a processing target can be improved and, at the same time, the number of laser beams can be promptly controlled, thereby promptly forming various patterns of the processing target.Type: ApplicationFiled: June 17, 2013Publication date: March 20, 2014Applicant: Samsung Display Co., Ltd.Inventors: Doh-Hyoung Lee, Choong-Ho Lee, Sung-Sik Yun, Tong-Jin Park
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Publication number: 20080233449Abstract: A fuel cell system possessing a mixing tank for recovering an unreacted fuel, the mixing tank being capable of effectively condensing a stack emission product without increasing its volume. The mixing tank includes a fuel supply port for supplying a concentrated fuel; a fluid inlet port for supplying a fluid discharged from an external fuel cell stack; a chamber for mixing the concentrated fuel with the fluid discharged from the fuel cell stack; a stack supply port for supplying a mixed fuel in the chamber to the fuel cell stack; and a chamber cooling member for cooling the chamber.Type: ApplicationFiled: February 27, 2008Publication date: September 25, 2008Inventors: Dae-ho Ko, Jung-kurn Park, Won-hyouk Jang, Ulrike Krewer, Dong-myung Suh, Tong-jin Park, Eun-suk Cho, Sang-jun Kong, Do-young Kim
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Publication number: 20080113249Abstract: Disclosed is a fuel cell system having a filter module that prevents the impurity contained in a fuel from entering into a fuel cell of the fuel cell system. The fuel cell system of the present invention includes a cartridge combination portion connected to a fuel cartridge and receiving a fuel from the cartridge, a pump receiving the fuel from the cartridge combination portion and transferring the fuel to the fuel cell, and a means for intercepting the impurity of the fuel and disposed between the cartridge combination and the pump.Type: ApplicationFiled: November 13, 2007Publication date: May 15, 2008Inventors: Joon-soo Bae, Tong-jin Park