Patents by Inventor Dae Jun Chang
Dae Jun Chang 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: 11978602Abstract: A switch apparatus, includes: a base module including a base case, and a moving magnet movably mounted in the base case; and a manipulation module including a manipulation case, and a first magnet fixedly mounted in the manipulation case, wherein the moving magnet moves between a hold position and a releasable position, the hold position refers to a position in which the manipulation module is held onto the base module as an attractive force acts between the moving magnet and the first magnet, and the releasable position refers to a position in which the manipulation module is releasable from the base module as a repulsive force acts between the moving magnet and the first magnet.Type: GrantFiled: June 21, 2022Date of Patent: May 7, 2024Assignees: Hyundai Motor Company, Kia Corporation, NOVATECH CO., LTD, ALPS ELECTRIC KOREA CO., LTD.Inventors: Sang Hoon Shin, Hoo Sang Lee, Jong Hyun Choi, Dae Woo Park, Youn Tak Kim, Nam I Jo, Choon Teak Oh, Hong Jun Choi, Kon Hee Chang, Woo Joo Ahn
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Publication number: 20240145118Abstract: A transparent conductor according to an exemplary embodiment of the present invention includes a transparent substrate, and a transparent conductive pattern formed on the transparent substrate, and the transparent conductor includes a nanostructure on an upper surface of at least one of the transparent substrate and the transparent conductive pattern.Type: ApplicationFiled: March 17, 2021Publication date: May 2, 2024Inventors: Dae-Guen CHOI, Hyuk Jun KANG, Ji Hye LEE, Junhyuk CHOI, Won Seok CHANG, Joo Yun JUNG, Jun-ho JEONG
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Publication number: 20240035622Abstract: A cryogenic liquid storage apparatus includes an inner container configured to store a cryogenic liquid, an inner holder disposed at the inner container, an outer container that surrounds the inner container, an outer holder disposed at the outer container, and a support wire that is a single body defining a closed-loop shape passing through the outer holder and the inner holder. The support wire is configured to support the inner container with respect to the outer container.Type: ApplicationFiled: December 14, 2022Publication date: February 1, 2024Inventors: Kwi Seong JEONG, Se Kwon JUNG, Dae Jun CHANG, Hyun Jun PARK, Se Hoon KIM
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Patent number: 10429008Abstract: Provided is a pressure tank having a lattice structure, including: a tank body that has a high-pressure fluid accommodated therein and is manufactured to have a prismatic shape; and cell structures that are disposed in the prismatic tank body, are manufactured in a lattice form, arrive from one side wall of the tank body to the other side wall thereof facing it, and are orthogonally arranged regularly.Type: GrantFiled: August 17, 2016Date of Patent: October 1, 2019Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Dae Jun Chang, Pal G Bergan
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Patent number: 10145508Abstract: A fluid storage tank according to an embodiment of the present invention comprises: a first outer wall section that forms a front face in the length direction, the width direction and the height direction so as to form a space portion in which a fluid is stored; a plurality of partition plates arranged along the length direction of the first outer wall portion to divide the space portion into the plurality of sub-space portions; and an end portion located between the outermost partition plate of the plurality of partition plates and the first outer wall portion, wherein each of the partition plates is formed with a fluid through hole comprising: a gas through hole located on the top of the partition plate; and a liquid through hole located on the bottom of the partition plate so that fluids between the sub-pace portions are in communication with each other.Type: GrantFiled: December 22, 2014Date of Patent: December 4, 2018Assignees: POSCO, Korea Advanced Institute of Science and TechnologyInventors: Ki-Hwan Kim, Sung-Jin Lee, Do-Won Seo, Hyung-Jin Kim, Dae-Jun Chang, Pal G. Bergan
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Patent number: 9851051Abstract: Provided is an X-beam structure including: a plurality of beams extending in X-axis, Y-axis, and Z-axis directions and formed in a lattice pattern and a plurality of cross intersections at which an X-axis beam, a Y-axis beam, and a Z-axis beam meet one another, wherein in the X-beam structure in which a cross section of each beam has the geometry of a right-angled X, and the beam intersections are formed with one continuous beam and the two other joining beams are attached and welded onto the continuous beam.Type: GrantFiled: November 8, 2012Date of Patent: December 26, 2017Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Dae Jun Chang, Pal G Bergan
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Patent number: 9683702Abstract: The present invention relates to an apparatus for pressurizing delivery of a low-temperature liquefied material, and more particularly, to an apparatus for pressurizing delivery of a low-temperature liquefied material, which can convert the low-temperature liquefied material into a high-pressure gas and easily deliver the gas without causing changes in a composition and flashing phenomenon.Type: GrantFiled: November 30, 2011Date of Patent: June 20, 2017Assignee: Korea Advanced Institute of Science and TechnologyInventors: Dae Jun Chang, Su Won Seo, Jun Young Kim
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Publication number: 20160356420Abstract: Provided is a pressure tank having a lattice structure, including: a tank body that has a high-pressure fluid accommodated therein and is manufactured to have a prismatic shape; and cell structures that are disposed in the prismatic tank body, are manufactured in a lattice form, arrive from one side wall of the tank body to the other side wall thereof facing it, and are orthogonally arranged regularly.Type: ApplicationFiled: August 17, 2016Publication date: December 8, 2016Inventors: Dae Jun CHANG, Pal, G BERGAN
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Publication number: 20160319992Abstract: A fluid storage tank according to an embodiment of the present invention comprises: a first outer wall section that forms a front face in the length direction, the width direction and the height direction so as to form a space portion in which a fluid is stored; a plurality of partition plates arranged along the length direction of the first outer wall portion to divide the space portion into the plurality of sub-space portions; and an end portion located between the outermost partition plate of the plurality of partition plates and the first outer wall portion, wherein each of the partition plates is formed with a fluid through hole comprising: a gas through hole located on the top of the partition plate; and a liquid through hole located on the bottom of the partition plate so that fluids between the sub-pace portions are in communication with each other.Type: ApplicationFiled: December 22, 2014Publication date: November 3, 2016Inventors: Ki-Hwan KIM, Sung-Jin LEE, Do-Won SEO, Hyung-Jin KIM, Dae-Jun CHANG, Pal G. BERGAN
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Publication number: 20160123531Abstract: Provided is a boil-off gas temporary storage system and, more particularly, is a boil-off gas temporary storage system which compresses boil-off gas at high pressure, temporarily stores the compressed boil-off gas in a boil-off gas absorbing tank, supplies the stored boil-off gas to a high-pressure gas transmission part and a high-pressure liquefied natural gas transmission part to recycle the boil-off gas, controls the pressure of a low-pressure liquefied natural gas cargo tank and a fuel liquefied natural gas tank of a ship to be filled with gas, and removes the necessity of a complicated and high-priced re-liquefaction device, in a method for removing the boil-off gas to depressurize the fuel liquefied natural gas tank of a ship to be filled with gas in the relatively high-pressure state before supplying the liquefied natural gas to a ship to be filled with gas.Type: ApplicationFiled: May 2, 2014Publication date: May 5, 2016Applicant: Korea Advanced Institute of Science and TechnologyInventor: Dae Jun Chang
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Publication number: 20150260339Abstract: Provided is an X-beam structure including: a plurality of beams extending in X-axis, Y-axis, and Z-axis directions and formed in a lattice pattern and a plurality of cross intersections at which an X-axis beam, a Y-axis beam, and a Z-axis beam meet one another, wherein in the X-beam structure in which a cross section of each beam has the geometry of a right-angled X, and the beam intersections are formed with one continuous beam and the two other joining beams are attached and welded onto the continuous beam.Type: ApplicationFiled: November 8, 2012Publication date: September 17, 2015Inventors: Dae Jun Chang, Pal G Bergan
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Publication number: 20150246770Abstract: Provided are a subsea storage tank for fluids and a method for building and installing the same. An exemplary embodiment of the present invention provides a subsea storage tank, including: a body having a storage space therein and formed of light weight concrete inner and outer sides of which are watertight coated or plated; a ballast placed on the body of the subsea tank; and a separation unit disposed inside the body and partitioning the storage space upper and lower, the separation unit being movable vertically in the storage space in accordance with the degree of storage fluid filling.Type: ApplicationFiled: October 18, 2012Publication date: September 3, 2015Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Dae Jun Chang, Pal G. Bergan
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Patent number: 9068315Abstract: The present invention relates to an oil fence and to a method for storing same. The oil fence includes: a vertical support part on which an air chamber, a water chamber, and a ballast are successively disposed in the lengthwise direction thereof; a curtain part connected between the vertical support parts disposed parallel to and spaced a predetermined distance from each other in the widthwise direction thereof; and attenuation bags disposed on the upper and lower portions of the curtain part. Thus, the oil fence may prevent seawater containing oil from overflowing in spite of high waves. Also, the oil fence may stably float on the sea in spite of poor weather conditions and high waves and may be easily stored and unfolded.Type: GrantFiled: November 16, 2011Date of Patent: June 30, 2015Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Dae Jun Chang, Pal G Bergan, Hyun Chung, Jeong Min Kwak
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Publication number: 20140034653Abstract: Provided is a pressure tank having a lattice structure, including: a tank body that has a high-pressure fluid accommodated therein and is manufactured to have a prismatic shape; and cell structures that are disposed in the prismatic tank body, are manufactured in a lattice form, arrive from one side wall of the tank body to the other side wall thereof facing it, and are orthogonally arranged regularly.Type: ApplicationFiled: April 25, 2012Publication date: February 6, 2014Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Dae Jun Chang, Pal, G Bergan
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Publication number: 20130343820Abstract: The present invention relates to an oil fence and to a method for storing same. The oil fence includes: a vertical support part on which an air chamber, a water chamber, and a ballast are successively disposed in the lengthwise direction thereof; a curtain part connected between the vertical support parts disposed parallel to and spaced a predetermined distance from each other in the widthwise direction thereof; and attenuation bags disposed on the upper and lower portions of the curtain part. Thus, the oil fence may prevent seawater containing oil from overflowing in spite of high waves. Also, the oil fence may stably float on the sea in spite of poor weather conditions and high waves and may be easily stored and unfolded.Type: ApplicationFiled: November 16, 2011Publication date: December 26, 2013Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Dae Jun Chang, Pal G Bergan, Hyun Chung, Jeong Min Kwak
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Publication number: 20130333799Abstract: Provided is an LNG refueling system which can deliver LNG to an LNG-fueled ship and an LNG-refueled ship or can introduce the LNG from an LNG carrier, and more particularly, an LNG refueling system which separately has a low-temperature LNG tank and a high-temperature LNG tank such that both a low-temperature LNG and a high-temperature LNG can be handled, prevents an increase in pressure in the low-temperature LNG tank, and increases stability, and includes a flashing drum to change a high-temperature LNG to a low-temperature LNG such that both the high-temperature LNG and the low-temperature LNG can be supplied. Further, the present invention relates to an LNG refueling system including a boil-off gas treatment system to facilitate treatment of boil-off gas and a boil-off gas treatment method.Type: ApplicationFiled: February 28, 2012Publication date: December 19, 2013Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Dae Jun Chang, Su Won Seo, Jiheon Ryu
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Publication number: 20130327421Abstract: The present invention relates to an apparatus for pressurizing delivery of a low-temperature liquefied material, and more particularly, to an apparatus for pressurizing delivery of a low-temperature liquefied material, which can convert the low-temperature liquefied material into a high-pressure gas and easily deliver the gas without causing changes in a composition and flashing phenomenon.Type: ApplicationFiled: November 30, 2011Publication date: December 12, 2013Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Dae Jun Chang, Su Won Seo, Jun Young Kim