Patents by Inventor Hyun-jun Cho
Hyun-jun 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: 11111347Abstract: A method for manufacturing an organic light emitting device includes: forming an organic light emitting display panel including a substrate provided on a support substrate, an organic light emitting element on the substrate, and a thin film encapsulating film covering the organic light emitting element; detaching the support substrate from the organic light emitting display panel; attaching a bottom protecting film to a bottom of the organic light emitting display panel, the bottom protecting film comprising a first electricity removing layer configured to remove static electricity; and cutting the organic light emitting display panel into a plurality of organic light emitting devices.Type: GrantFiled: April 9, 2020Date of Patent: September 7, 2021Assignee: Samsung Display Co., Ltd.Inventors: Hyo-Young Mun, Young-Gu Kim, Young-Ji Kim, Hyun-Jun Cho
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Publication number: 20200235347Abstract: A method for manufacturing an organic light emitting device includes: forming an organic light emitting display panel including a substrate provided on a support substrate, an organic light emitting element on the substrate, and a thin film encapsulating film covering the organic light emitting element; detaching the support substrate from the organic light emitting display panel; attaching a bottom protecting film to a bottom of the organic light emitting display panel, the bottom protecting film comprising a first electricity removing layer configured to remove static electricity; and cutting the organic light emitting display panel into a plurality of organic light emitting devices.Type: ApplicationFiled: April 9, 2020Publication date: July 23, 2020Inventors: Hyo-Young Mun, Young-Gu Kim, Young-Ji Kim, Hyun-Jun Cho
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Patent number: 10658626Abstract: A method for manufacturing an organic light emitting device includes: forming an organic light emitting display panel including a substrate provided on a support substrate, an organic light emitting element on the substrate, and a thin film encapsulating film covering the organic light emitting element; detaching the support substrate from the organic light emitting display panel; attaching a bottom protecting film to a bottom of the organic light emitting display panel, the bottom protecting film comprising a first electricity removing layer configured to remove static electricity; and cutting the organic light emitting display panel into a plurality of organic light emitting devices.Type: GrantFiled: August 18, 2017Date of Patent: May 19, 2020Assignee: Samsung Display Co., Ltd.Inventors: Hyo-Young Mun, Young-Gu Kim, Young-Ji Kim, Hyun-Jun Cho
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Publication number: 20170346045Abstract: A method for manufacturing an organic light emitting device includes: forming an organic light emitting display panel including a substrate provided on a support substrate, an organic light emitting element on the substrate, and a thin film encapsulating film covering the organic light emitting element; detaching the support substrate from the organic light emitting display panel; attaching a bottom protecting film to a bottom of the organic light emitting display panel, the bottom protecting film comprising a first electricity removing layer configured to remove static electricity; and cutting the organic light emitting display panel into a plurality of organic light emitting devices.Type: ApplicationFiled: August 18, 2017Publication date: November 30, 2017Inventors: Hyo-Young Mun, Young-Gu Kim, Young-Ji Kim, Hyun-Jun Cho
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Patent number: 9673014Abstract: A method of manufacturing a display panel includes forming a mother panel on a base substrate, attaching an upper passivation film to the mother panel, detaching the base substrate from the mother panel, attaching a lower film to the mother panel, and cutting the mother panel to which the upper passivation film and the lower film are attached to form the display panel, the display panel being in a form of a cell unit. The display panel includes a display substrate, a display device layer, and a thin film encapsulation layer.Type: GrantFiled: June 28, 2013Date of Patent: June 6, 2017Assignee: Samsung Display Co., Ltd.Inventors: Young-Ji Kim, Young-Gu Kim, Hyun-Jun Cho, Hyo-Young Mun
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Patent number: 8895765Abstract: A method for preparing fatty acid alkyl ester for bio-diesel fuel is disclosed wherein fatty acid, specifically fatty acid distillate reacts with alcohol. The method does not require the glycerin purification process, and has the superior conversion ratio of fatty acid. The method for preparing fatty acid alkyl ester for bio-diesel fuel comprises the step of carrying out a counter current type esterification reaction of fatty acid and alcohol in each tray of a counter current column reactor at a temperature of 200 to 350° C. and a pressure of 1 to 35 bar. Here the raw material of the fatty acid is fed to an upper part of the counter current column reactor and the alcohol is fed to a lower part of the counter current column reactor. The counter current column reactor has a number of trays which are installed horizontally to have a number of vertical compartments. Each of the number of trays has an opening part at one end thereof to communicate one compartment with an adjoining compartment.Type: GrantFiled: September 22, 2009Date of Patent: November 25, 2014Assignee: SK Chemicals Co., Ltd.Inventors: Soo-Hyun Kim, Hyun-Jun Cho, Chan-Woo Moon, Byoung-Kyung Ham, Jae-Bong Lim
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Publication number: 20140091288Abstract: An organic light emitting diode (OLED) display includes a display panel including a flexible substrate and a thin film encapsulation (TFE) for covering and protecting an organic light emitting element formed on the flexible substrate, a first protective film arranged on the TFE to be opposite to the TFE, a second protective film arranged on the flexible substrate to be opposite to the flexible substrate, a first adhesive disposed between the TFE and the first protective film, a second adhesive disposed between the flexible substrate and the second protective film, a third protective film arranged on the second protective film to be opposite to the second protective film, and a third adhesive disposed between the second protective film and the third protective film.Type: ApplicationFiled: September 18, 2013Publication date: April 3, 2014Inventors: Keun-Soo Lee, Seong-Jun Lee, Young-Gu Kim, Jung-Ju Yu, Yun Jeong, Hyo-Young Mun, Ha-Gyeong Song, Hyun-Jun Cho, Young-Ji Kim, Dong-Un Jin
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Publication number: 20140061610Abstract: A method for manufacturing an organic light emitting device includes: forming an organic light emitting display panel including a substrate provided on a support substrate, an organic light emitting element on the substrate, and a thin film encapsulating film covering the organic light emitting element; detaching the support substrate from the organic light emitting display panel; attaching a bottom protecting film to a bottom of the organic light emitting display panel, the bottom protecting film comprising a first electricity removing layer configured to remove static electricity; and cutting the organic light emitting display panel into a plurality of organic light emitting devices.Type: ApplicationFiled: July 12, 2013Publication date: March 6, 2014Inventors: Hyo-Young Mun, Young-Gu Kim, Young-Ji Kim, Hyun-Jun Cho
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Publication number: 20140017967Abstract: A method of manufacturing a display panel includes forming a mother panel on a base substrate, attaching an upper passivation film to the mother panel, detaching the base substrate from the mother panel, attaching a lower film to the mother panel, and cutting the mother panel to which the upper passivation film and the lower film are attached to form the display panel, the display panel being in a form of a cell unit. The display panel includes a display substrate, a display device layer, and a thin film encapsulation layer.Type: ApplicationFiled: June 28, 2013Publication date: January 16, 2014Inventors: Young-Ji KIM, Young-Gu KIM, Hyun-Jun CHO, Hyo-Young MUN
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Patent number: 8530684Abstract: A method for preparing fatty acid alkyl ester for bio-diesels is disclosed, wherein fatty acid, specifically fatty acid distillate reacts with alcohol in the presence of metal catalyst instead of conventional acid or solid acid catalyst. The method does not require the glycerin purification process, and has the superior conversion ratio of fatty acid. The method for preparing fatty acid alkyl ester comprises the step of carrying out an esterification reaction of fatty acid raw material with alcohol in the presence of metal catalyst. Preferably, the esterification reaction is carried out at the temperature of 200 to 350° C. and the pressure of atmospheric pressure to 10 bar, and the metal catalyst is a compound containing metal selected from the group consisting of cobalt, iron, manganese, zinc, titanium and mixture thereof.Type: GrantFiled: April 1, 2008Date of Patent: September 10, 2013Assignee: SK Chemicals Co., Ltd.Inventors: Hyun-Jun Cho, Byung-Hui Kim, Soo-Hyun Kim, Yong-Jun Shin, Shin-ho Chun
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Publication number: 20110218355Abstract: A method for preparing fatty acid alkyl ester for bio-diesel fuel is disclosed, wherein fatty acid, specifically fatty acid distillate reacts with alcohol. The method does not require the glycerin purification process, and has the superior conversion ratio of fatty acid. The method for preparing fatty acid alkyl ester for bio-diesel fuel comprises the step of carrying out a counter current type esterification reaction of fatty acid and alcohol in each tray of a counter current column reactor at a temperature of 200 to 350 and a pressure of 1 to 35 bar. Here the raw material of the fatty acid is fed to an upper part of the counter current column reactor and the alcohol is fed to a lower part of the counter current column reactor. The counter current column reactor has a number of trays which are installed horizontally to have a number of vertical compartments. Each of the number of trays has an opening part at one end thereof to communicate one compartment with an adjoining compartment.Type: ApplicationFiled: September 22, 2009Publication date: September 8, 2011Inventors: Soo-Hyun Kim, Hyun-Jun Cho, Chan-Woo Moon, Byoung-Kyung Ham, Jae-Bong Lim
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Patent number: 7951967Abstract: A method and an apparatus for preparing fatty acid alkyl ester for bio-diesels are disclosed, wherein fatty acid, specifically fatty acid distillate reacts with alcohol, without a catalyst. The method does not require the purification process of the catalyst and glycerin, and has the superior conversion ratio of fatty acid. The method for preparing fatty acid alkyl ester for bio-diesel fuels comprises the step of esterifying fatty acid raw material with alcohol, under a temperature of 200 to 350° C. and a pressure of atmospheric pressure to 10 bar. The apparatus for preparing fatty acid alkyl ester for bio-diesel fuels, comprises: the first reactor for esterifying fatty acid raw material with alcohol under a temperature of 200° C. to 350° C. and a pressure of atmospheric pressure to 10 bar and for converting 80 to 90% of total fatty acid into fatty acid alkyl ester; and the second reactor for converting remaining fatty acid unconverted at the first reactor into fatty acid alkyl ester.Type: GrantFiled: April 28, 2006Date of Patent: May 31, 2011Assignee: SK Chemicals Co., Ltd.Inventors: Shin-ho Chun, Hyun-Jun Cho, Hang-Duk Roh, Jae-Bong Lim, Jong-In Lee, Chan-Woo Moon, Byung-Hui Kim
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Publication number: 20110028747Abstract: A method for preparing fatty acid alkyl ester for bio-diesels is disclosed, wherein fatty acid, specifically fatty acid distillate reacts with alcohol in the presence of metal catalyst instead of conventional acid or solid acid catalyst. The method does not require the glycerin purification process, and has the superior conversion ratio of fatty acid. The method for preparing fatty acid alkyl ester comprises the step of carrying out an esterification reaction of fatty acid raw material with alcohol in the presence of metal catalyst. Preferably, the esterification reaction is carried out at the temperature of 200 to 350° C. and the pressure of atmospheric pressure to 10 bar, and the metal catalyst is a compound containing metal selected from the group consisting of cobalt, iron, manganese, zinc, titanium and mixture thereof.Type: ApplicationFiled: April 1, 2008Publication date: February 3, 2011Inventors: Hyun-Jun Cho, Byung-Hui Kim, Soo-Hyun Kim, Yong-Jun Shin, Shin-ho Chun
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Publication number: 20100228042Abstract: A method and an apparatus for preparing fatty acid alkyl ester for bio-diesels are disclosed, wherein fatty acid, specifically fatty acid distillate reacts with alcohol, without a catalyst. The method does not require the purification process of the catalyst and glycerin, and has the superior conversion ratio of fatty acid. The method for preparing fatty acid alkyl ester for bio-diesel fuels comprises the step of esterifying fatty acid raw material with alcohol, under a temperature of 200 to 35O0 C and a pressure of atmospheric pressure to 10 bar.Type: ApplicationFiled: April 28, 2006Publication date: September 9, 2010Inventors: Shin-ho Chun, Hyun-Jun Cho, Hang-Duk Roh, Jae-Bong Lim, Jong-In Lee, Chan-Woo Moon, Byung-Hui Kim
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Patent number: 7715890Abstract: A magnetic levitation sliding structure is provided for a portable electronic device. The sliding structure includes a first slider member with a guide portion, a second slider member with a receiving portion that mates with the guide portion, a first magnet coupled with the guide portion and having magnetic poles arranged in a direction perpendicular to a sliding direction, and a spaced-apart pair of second magnets coupled with the receiving portion. The first magnet is configured between the spaced-apart pair of second magnets for facilitating relative sliding movement of the first and second slider members. A portable electronic device including the magnetic levitation sliding structure is also provided.Type: GrantFiled: August 1, 2007Date of Patent: May 11, 2010Assignee: Samsung Techwin Co., Ltd.Inventors: Jong-soon Kim, Hyun-jun Cho, Young-han Chin
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Publication number: 20080061914Abstract: A magnetic levitation sliding structure is provided for a portable electronic device. The sliding structure includes a first slider member with a guide portion, a second slider member with a receiving portion that mates with the guide portion, a first magnet coupled with the guide portion and having magnetic poles arranged in a direction perpendicular to a sliding direction, and a spaced-apart pair of second magnets coupled with the receiving portion. The first magnet is configured between the spaced-apart pair of second magnets for facilitating relative sliding movement of the first and second slider members. A portable electronic device including the magnetic levitation sliding structure is also provided.Type: ApplicationFiled: August 1, 2007Publication date: March 13, 2008Applicant: Samsung Techwin Co., Ltd.Inventors: Jong-soon Kim, Hyun-jun Cho, Young-han Chin