Patents by Inventor Seung-Chan Baek
Seung-Chan Baek 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: 11577277Abstract: The present invention provides a glass wool cutting device. The device includes a cutting section housing that has a cutting section chamber, a feed port that is connected to the cutting section chamber, and a discharge port that is connected to the cutting section chamber. A stationary knife is disposed on the cutting section housing to protrude into the cutting section chamber and a movable cutter that has a rotary support body is disposed in the cutting section chamber and a movable knife is supported on the rotary support body to apply a shearing force to the glass wool together with the stationary knife. Additionally, a cutter actuator provides a driving force to the rotary support body.Type: GrantFiled: October 19, 2018Date of Patent: February 14, 2023Assignees: Hyundai Motor Company, Kia Motors Corporation, Dae Ha Co., LTD.Inventors: Han Ki Lee, Mun Gyu Bak, Hak Soo Kim, Ju Seong Park, A Rom Oh, Seung Chan Baek, Song Woo Nam, Ju Hong Kim
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Publication number: 20200384478Abstract: The present invention relates to a document shredding apparatus having a document management apparatus. The present invention relates to a document shredder (10) comprising: a document feeder (121) formed on an upper portion of a case (120); a shredding portion (12) positioned below the document feeder (121) in the case (120) for shredding documents fed from the document feeder (121); and a collection box (125) for receiving waste paper shreds shredded by the shredding portion (12), wherein at least one document shredder (10) includes a server (20) which is located in a terminal for managing documents and networked to the document shredder (10) to manage the documents, wherein the server (20) is configured to store information and images of documents requested to be shredded from the document shredder (10), thereby safely managing discarded documents.Type: ApplicationFiled: April 16, 2018Publication date: December 10, 2020Applicant: WOWSOFT CO., LTD.Inventors: Jong Sang BAE, Tae Kyou YOUN, Seung Chan BAEK
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Publication number: 20190292091Abstract: The present invention provides a glass wool cutting device. The device includes a cutting section housing that has a cutting section chamber, a feed port that is connected to the cutting section chamber, and a discharge port that is connected to the cutting section chamber. A stationary knife is disposed on the cutting section housing to protrude into the cutting section chamber and a movable cutter that has a rotary support body is disposed in the cutting section chamber and a movable knife is supported on the rotary support body to apply a shearing force to the glass wool together with the stationary knife. Additionally, a cutter actuator provides a driving force to the rotary support body.Type: ApplicationFiled: October 19, 2018Publication date: September 26, 2019Inventors: Han Ki Lee, Mun Gyu Bak, Hak Soo Kim, Ju Seong Park, A Rom Oh, Seung Chan Baek, Song Woo Nam, Ju Hong Kim
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Patent number: 10127851Abstract: Disclosed is an image processing method for reducing power consumption of an OLED display device. A method of the present invention comprises the steps of: receiving image data; determining whether a frequency of a predetermined area of the image data is lower than a predetermined reference; deciding a minimum value among a plurality of blue data values of the predetermined area when the frequency of the predetermined area is lower than the reference as a result of the determination; and changing blue data of the predetermined area on the basis of the determined minimum value.Type: GrantFiled: January 28, 2015Date of Patent: November 13, 2018Assignee: LG ELECTRONICS INC.Inventors: Jung Hwan Kim, Seung Hyun Lee, Myung Jin Park, Seung Chan Baek, Seong Hak Moon
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Publication number: 20170069242Abstract: Disclosed is an image processing method for reducing power consumption of an OLED display device. A method of the present invention comprises the steps of: receiving image data; determining whether a frequency of a predetermined area of the image data is lower than a predetermined reference; deciding a minimum value among a plurality of blue data values of the predetermined area when the frequency of the predetermined area is lower than the reference as a result of the determination; and changing blue data of the predetermined area on the basis of the determined minimum value.Type: ApplicationFiled: January 28, 2015Publication date: March 9, 2017Applicant: LG ELECTRONICS INC.Inventors: Jung Hwan KIM, Seung Hyun LEE, Myung Jin PARK, Seung Chan BAEK, Seong Hak MOON
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Patent number: 9012352Abstract: The present invention relates to a catalyst for Fischer-Tropsch synthesis which has excellent heat transfer capability. This catalyst contains (1) central core particle or particles made of a heat transfer material (HTM) selected from the group consisting of a metal, a metal oxide, a ceramic, and a mixture thereof; and (2) outer particle layer which surrounds the central core particles and is attached to the surfaces of the central core particles by a binder material layer. The outer particle layer has a support and catalyst particles in a powder form containing metal particles disposed on the support. The catalyst having such a dual particle structure shows excellent heat transfer capability and, thus, exhibits high selectivity to a target hydrocarbon. Therefore, the catalyst of the present invention is useful in a fixed-bed reactor for Fischer-Tropsch synthesis for producing hydrocarbons from synthetic gas.Type: GrantFiled: April 25, 2012Date of Patent: April 21, 2015Assignee: Korea Research Institute of Chemical TechnologyInventors: Kyoung Su Ha, Joo Young Cheon, Yun Jo Lee, Seung-Chan Baek, Geun Jae Kwak, Seon Ju Park, Ki Won Jun
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Publication number: 20140038813Abstract: The present invention relates to a catalyst for Fischer-Tropsch synthesis which has excellent heat transfer capability. This catalyst contains (1) central core particle or particles made of a heat transfer material (HTM) selected from the group consisting of a metal, a metal oxide, a ceramic, and a mixture thereof; and (2) outer particle layer which surrounds the central core particles and is attached to the surfaces of the central core particles by a binder material layer. The outer particle layer has a support and catalyst particles in a powder form containing metal particles disposed on the support. The catalyst having such a dual particle structure shows excellent heat transfer capability and, thus, exhibits high selectivity to a target hydrocarbon. Therefore, the catalyst of the present invention is useful in a fixed-bed reactor for Fischer-Tropsch synthesis for producing hydrocarbons from synthetic gas.Type: ApplicationFiled: April 25, 2012Publication date: February 6, 2014Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGYInventors: Kyoung Su Ha, Joo Young Cheon, Yun Jo Lee, Seung-Chan Baek, Geun Jae Kwak, Seon Ju Park, Ki Won Jun
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Patent number: 8524119Abstract: Disclosed are a catalyst for preparing synthesis gas from natural gas and carbon dioxide, and a method for preparing the same. More particularly, a combined reforming process is performed as an economical way of using carbon dioxide, wherein steam reforming of natural gas is carried out simultaneously with carbon dioxide reforming of methane in such a manner that a predetermined ratio of carbon monoxide/carbon dioxide/hydrogen (H2/(2CO+3CO2)=0.85-1.15) is maintained. In this manner, the catalyst is used to prepare synthesis gas suitable for methanol synthesis and Fischer-Tropsch synthesis. Disclosed also is a method for preparing synthesis gas on a specific catalyst consisting of Ni/Ce/MgAlOx or Ni/Ce-Zr/MgAlOx. The catalyst is inhibited from deactivation caused by generation of cokes during the reaction as well as deactivation caused by reoxidation of nickel with water added during the reaction. Therefore, the catalyst shows excellent activity as compared to other catalysts for use in combined reforming.Type: GrantFiled: July 30, 2009Date of Patent: September 3, 2013Assignees: Hyundai Heavy Industries Co., Ltd., Korea Research Institute of Chemical TechnologyInventors: Ki Won Jun, Seung-Chan Baek, Jong Wook Bae, Keh-Sik Min, Seok-Lyong Song, Tae-Young Oh
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Publication number: 20110114892Abstract: Disclosed are a catalyst for preparing synthesis gas from natural gas and carbon dioxide, and a method for preparing the same. More particularly, a combined reforming process is performed as an economical way of using carbon dioxide, wherein steam reforming of natural gas is carried out simultaneously with carbon dioxide reforming of methane in such a manner that a predetermined ratio of carbon monoxide/carbon dioxide/hydrogen (H2/(2CO+3CO2)=0.85-1.15) is maintained. In this manner, the catalyst is used to prepare synthesis gas suitable for methanol synthesis and Fischer-Tropsch synthesis. Disclosed also is a method for preparing synthesis gas on a specific catalyst consisting of Ni/Ce/MgAlOx or Ni/Ce—Zr/MgAlOx. The catalyst is inhibited from deactivation caused by generation of cokes during the reaction as well as deactivation caused by reoxidation of nickel with water added during the reaction. Therefore, the catalyst shows excellent activity as compared to other catalysts for use in combined reforming.Type: ApplicationFiled: July 30, 2009Publication date: May 19, 2011Inventors: Ki Won Jun, Seung-Chan Baek, Jong Wook Bae, Keh-Sik Min, Seok-Lyong Song, Tae-Young Oh
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Patent number: 7649510Abstract: The present invention relates to a plasma display apparatus and an image processing method thereof, and more particularly, the present invention relates to an improved plasma display apparatus and an image processing method thereof which can enhance a gray level representation capability.Type: GrantFiled: July 8, 2005Date of Patent: January 19, 2010Assignee: LG Electronics Inc.Inventor: Seung Chan Baek
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Patent number: 7633468Abstract: This document relates to a display apparatus, and more particularly, to an image processing apparatus and method of a plasma display panel. An image processing apparatus of a plasma display panel according to an embodiment of the present invention comprises an inverse gamma correction unit that gamma-corrects an image signal through previous stored gamma data, a half-toning unit that adds an error diffusion error value (Ei) of neighboring pixels to a noise value (n(i, j)) of a predetermined pattern and diffuses the added result into the inverse gamma corrected image signal, and a sub-field mapping unit that maps the half-toned image signal to a sub-field mapping table.Type: GrantFiled: December 29, 2005Date of Patent: December 15, 2009Assignee: LG Electronics Inc.Inventor: Seung Chan Baek
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Patent number: 7397445Abstract: The present invention relates to a plasma display panel, and more particularly, to a method of displaying the gray scale in a plasma display panel. According to the present invention, a method of displaying gray scales in a plasma display panel having an inverse gamma correction unit that operates using gamma tables includes the steps of allowing the inverse gamma correction unit to match picture signals, which corresponds to an n number of frames (n is a natural number) respectively, to an n number of previously stored gamma tables, allowing the inverse gamma correction unit to perform an inverse gamma process on the picture signals received according to the matched gamma tables to produce real gray scales every frame, and allowing the inverse gamma correction unit to divide the real gray scales every frame by n and then to produce last real gray scales. More fine gray scales can be represented by extending the number of real gray scales. It is thus possible to remove noise and provide a much smooth image.Type: GrantFiled: December 28, 2004Date of Patent: July 8, 2008Assignee: LG Electronics Inc.Inventor: Seung Chan Baek
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Publication number: 20080018561Abstract: A driving device of a plasma display panel and a method of driving the plasma display panel are disclosed. A method of driving a plasma display panel receiving a video signal and displaying an image on the screen includes performing an inverse-gamma correction process on the video signal, calculating an occupation proportion of a maximum gray level of the video signal in a histogram of the video signal using location information of an object displayed on the screen, calculating a motion proportion of the video signal, and calculating an average picture level (APL) of the video signal.Type: ApplicationFiled: July 20, 2007Publication date: January 24, 2008Inventors: Byungsoo Song, Seung Chan Baek, Tae-Ok Ha, Seonghak Moon
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Publication number: 20050206587Abstract: The present invention relates to a plasma display apparatus, and more particularly, to a plasma display apparatus for expressing images by processing input image signals and an image processing method thereof. The plasma display apparatus for expressing images by processing image signals comprises: an inverse gamma correction unit linearly transforming a luminance value depending on the gray scale of an image signal by inverse gamma correction of input image signal data; and a halftoning unit masking at least two dither mask patterns in random order with respect to the inverse gamma corrected image signal data.Type: ApplicationFiled: March 15, 2005Publication date: September 22, 2005Inventor: Seung Chan Baek
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Patent number: 6808652Abstract: A modified ⊖-Al2O3-supported nickel reforming catalyst and its use for producing synthesis gas from natural gas, more specifically to a nickel reforming catalyst expressed by the following formula 1, having improved coke resistance, high-temperature catalysis stability and catalytic activity, which is prepared by coating nickel or mixture of nickel and cocatalyst (M1-M2-Ni) on a Al2O3 support modified with metal (M3-M4-ZrO2/⊖-Al2O3), and its use for producing synthesis gas from natural gas through steam reforming, oxygen reforming or steam-oxygen reforming, M1-M2-Ni/M3-M4-ZrO2/⊖-Al2O3 (1) wherein M1 is an alkali metal; each of M2 and M3 is an alkaline earth metal; and M4 is a IIIB element or a lanthanide.Type: GrantFiled: January 5, 2004Date of Patent: October 26, 2004Assignees: Korea Research Institute of Chemical Technology, Korea Gas Corporation, Kyoungdong Citygas Co., Ltd.Inventors: Sang-Eon Park, Ki-Won Jun, Hyun-Seog Roh, Seung-Chan Baek, Young-Sam Oh, Young-Soon Baek, Ri-Sang Choi, Taek-Yong Song
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Publication number: 20040142817Abstract: The present invention relates to a modified &thgr;-Al2O3-supported nickel reforming catalyst and its use for producing synthesis gas from natural gas, more specifically to a nickel reforming catalyst expressed by the following formula 1, having improved coke resistance, high-temperature catalysis stability and catalytic activity, which is prepared by coating nickel or mixture of nickel and cocatalyst (M1-M2-Ni) on a &thgr;-Al2O3 support modified with metal (M3-M4-ZrO2/&thgr;-Al2O3), and its use for producing synthesis gas from natural gas through steam reforming, oxygen reforming, or steam-oxygen reforming,Type: ApplicationFiled: January 5, 2004Publication date: July 22, 2004Applicants: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY, KOREA GAS CORPORATION, KYUNGDONG CITYGAS CO., LTD.Inventors: Sang-Eon Park, Ki-Won Jun, Hyun-Seog Roh, Seung-Chan Baek, Young-Sam Oh, Young-Soon Baek, Ri-Sang Choi, Taek-Yong Song
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Patent number: 6693060Abstract: A modified &thgr;-Al2O3-supported nickel reforming catalyst and its use for producing synthesis gas from natural gas, more specifically to a nickel reforming catalyst expressed by the following formula 1, having improved coke resistance, high-temperature catalysis stability and catalytic activity, which is prepared by coating nickel or mixture of nickel and cocatalyst (M1—M2—Ni) on a &thgr;-Al2O3 support modified with metal (M3—M4—ZrO2/&thgr;-Al2O3), and its use for producing synthesis gas from natural gas through steam reforming, oxygen reforming or steam-oxygen reforming, M1—M2—Ni/M3—M4—ZrO2/&thgr;-Al2O3 (1) wherein M1 is an alkali metal, each of M2 and M3 is an alkaline earth metal; and M4 is a IIIB element or a lanthanide.Type: GrantFiled: May 13, 2002Date of Patent: February 17, 2004Assignees: Korea Research Institute of Chemical Technology, Korea Gas Corporation, Kyungdong City Gas Co., Ltd.Inventors: Sang-Eon Park, Ki-Won Jun, Hyun-Seog Roh, Seung-Chan Baek, Young-Sam Oh, Young-Soon Baek, Ri-Sang Choi, Taek-Yong Song
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Publication number: 20030032554Abstract: The present invention relates to a modified &thgr;-Al2O3-supported nickel reforming catalyst and its use for producing synthesis gas from natural gas, more specifically to a nickel reforming catalyst expressed by the following formula 1, having improved coke resistance, high-temperature catalysis stability and catalytic activity, which is prepared by coating nickel or mixture of nickel and cocatalyst (M1—M2—Ni) on a &thgr;m-Al2O3 support modified with metal (M3—M4—ZrO2/&thgr;-Al2O3), and its use for producing synthesis gas from natural gas through steam reforming, oxygen reforming or steam-oxygen reforming,Type: ApplicationFiled: May 13, 2002Publication date: February 13, 2003Applicant: Korea Research Institute Of Chemical TechnologyInventors: Sang-Eon Park, Ki-Won Jun, Hyun-Seog Roh, Seung-Chan Baek, Young-Sam Oh, Young-Soon Baek, Ri-Sang Choi, Taek-Yong Song