Patents by Inventor Sang-Hoon Chae
Sang-Hoon Chae 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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Publication number: 20240093407Abstract: Systems and methods for generating one or more single crystal monolayers from two-dimensional van der Waals crystals are disclosed herein. Example methods include providing a bulk material including a plurality of van der Waals crystal layers, and exfoliating one or more single crystal monolayers of van der Waals crystal from the bulk material by applying a flexible and flat metal tape to a surface of the bulk material. In certain embodiments, the one or more single crystal monolayers can be assembled into an artificial lattice. The present disclosure also provides techniques for manufacturing flexible and flat metal tape for generating one or more single crystal monolayers from two-dimensional van der Waals crystals. The present disclosure also provides compositions for creating a macroscopic artificial lattice.Type: ApplicationFiled: November 29, 2023Publication date: March 21, 2024Applicant: THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORKInventors: Fang Liu, Xiaoyang Zhu, James Hone, Sang Hoon Chae
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Patent number: 11866847Abstract: Systems and methods for generating one or more single crystal monolayers from two-dimensional van der Waals crystals are disclosed herein. Example methods include providing a bulk material including a plurality of van der Waals crystal layers, and exfoliating one or more single crystal monolayers of van der Waals crystal from the bulk material by applying a flexible and flat metal tape to a surface of the bulk material. In certain embodiments, the one or more single crystal monolayers can be assembled into an artificial lattice. The present disclosure also provides techniques for manufacturing flexible and flat metal tape for generating one or more single crystal monolayers from two-dimensional van der Waals crystals. The present disclosure also provides compositions for creating a macroscopic artificial lattice.Type: GrantFiled: November 25, 2020Date of Patent: January 9, 2024Assignee: THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORKInventors: Fang Liu, Xiaoyang Zhu, James Hone, Sang Hoon Chae
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Publication number: 20230296956Abstract: Methods and systems are described for modulating optical signals. An example method may comprise supplying, via a waveguide, an optical signal to a resonator optically coupled to the waveguide. The method may comprise modulating a phase of the optical signal based on at least one layer comprising an electro-optic material having an electro-refractive property and an electro-absorptive property. The modulating of the phase may be based on using the at least one layer to tune a coupling of the waveguide and the resonator between being under-coupled and being over-coupled. The method may comprise outputting, via the waveguide, the modulated optical signal.Type: ApplicationFiled: December 8, 2022Publication date: September 21, 2023Inventors: Ipshita Datta, Michal Lipson, Sang Hoon Chae, James Hone
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Patent number: 11710759Abstract: One or more systems and/or methods are disclosed for building a relief print generator with no bezel. An electrode layer having more than one electrode can be used in an electrode-based, electro-luminescence component of the relief print generator. The respective electrodes may be connected to power sources with different voltage phases. An electrical circuit can be created between a biometric object and more than one electrode in the electrode layer when the biometric object contacts a surface of the generator. The electro-luminescent component can be activated by electrical charge and emit light indicative of a relief print of the biometric object. A contact electrode outside the electrode layer may not be used, which may allow for the removal of a bezel from an example device.Type: GrantFiled: December 23, 2019Date of Patent: July 25, 2023Assignee: Integrated Biometrics, LLCInventors: David A. Hardinger, Spencer R. Canizales, Sang Hoon Chae, Frederick Frye, Dong Hyuk Jang, Robert A. Kimball
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Publication number: 20210193729Abstract: One or more systems and/or methods are disclosed for building a relief print generator with no bezel. An electrode layer having more than one electrode can be used in an electrode-based, electro-luminescence component of the relief print generator. The respective electrodes may be connected to power sources with different voltage phases. An electrical circuit can be created between a biometric object and more than one electrode in the electrode layer when the biometric object contacts a surface of the generator. The electro-luminescent component can be activated by electrical charge and emit light indicative of a relief print of the biometric object. A contact electrode outside the electrode layer may not be used, which may allow for the removal of a bezel from an example device.Type: ApplicationFiled: December 23, 2019Publication date: June 24, 2021Applicant: Integrated Biometrics, LLCInventors: David A. Hardinger, Spencer R. Canizales, Sang Hoon Chae, Frederick Frye, Dong Hyuk Jang, Robert A. Kimball
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Patent number: 11034390Abstract: Disclosed is a reinforcing member for improving durability of a structure which receives an external force. The reinforcing member includes a reinforcing portion for improving the durability of the structure and a restricting portion which is fixed, in position, to the structure while restricting a shift in position of the reinforcing portion such that the reinforcing portion is located in a predetermined position on the basis of the structure.Type: GrantFiled: June 25, 2019Date of Patent: June 15, 2021Assignee: SHIN YOUNG CO., LTD.Inventors: Sang Hoon Chae, Jeong Pil Choi
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Publication number: 20210172087Abstract: Systems and methods for generating one or more single crystal monolayers from two-dimensional van der Waals crystals are disclosed herein. Example methods include providing a bulk material including a plurality of van der Waals crystal layers, and exfoliating one or more single crystal monolayers of van der Waals crystal from the bulk material by applying a flexible and flat metal tape to a surface of the bulk material. In certain embodiments, the one or more single crystal monolayers can be assembled into an artificial lattice. The present disclosure also provides techniques for manufacturing flexible and flat metal tape for generating one or more single crystal monolayers from two-dimensional van der Waals crystals. The present disclosure also provides compositions for creating a macroscopic artificial lattice.Type: ApplicationFiled: November 25, 2020Publication date: June 10, 2021Applicant: THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORKInventors: James Hone, Fang Liu, Xiaoyang Zhu, Sang Hoon Chae
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Publication number: 20200391808Abstract: Disclosed is a reinforcing member for improving durability of a structure which receives an external force. The reinforcing member includes a reinforcing portion for improving the durability of the structure and a restricting portion which is fixed, in position, to the structure while restricting a shift in position of the reinforcing portion such that the reinforcing portion is located in a predetermined position on the basis of the structure.Type: ApplicationFiled: June 25, 2019Publication date: December 17, 2020Inventors: Sang Hoon CHAE, Jeong Pil CHOI
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Patent number: 9610978Abstract: A method of assembling a sub-frame of a vehicle with the front side member of the vehicle includes integrally forming a supporting end of a mounting nut that protrudes in a radial direction in a center of an external circumference of the mounting nut, forming a through hole in a lower surface of the front side member, forming a seat as a groove in an internal surface of the through hole, inserting a lower end of the mounting nut into the through hole so that the supporting end is supported by a circumference of the through hole, settling a head of the mounting nut in the seat, and welding the supporting end and the head along the circumference of the through hole and a side of the seat to assemble the sub-frame to the front side member.Type: GrantFiled: December 6, 2013Date of Patent: April 4, 2017Assignees: HYUNDAI MOTOR COMPANY, KIA MOTOR COMPANY, SHIN YOUNG CO., LTD., SUNGWOO HITECH CO., LTD., MS AUTOTECH CO., LTD.Inventors: Dae Seung Kim, Chang Wook Park, Heui Won Yang, Log Won Do, Sang Hoon Chae, Jang-Su Kim, Sang-Lae Lee, Mun Yong Lee, Daeho Yang, Sungyong Park, Dae Keun Kim
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Patent number: 8899670Abstract: A roof side rail is connected to a roof panel and includes a multi-sectional rail having a plurality of integrally formed ribs and bent along a shape of an upper portion of a side surface of a vehicle body, and a reinforcement rail that is combined with an inner side surface of the rail, an upper side flange is connected to the roof panel, and a lower side flange is engaged with a weather strip.Type: GrantFiled: December 6, 2013Date of Patent: December 2, 2014Assignees: Hyundai Motor Company, Kia Motors Corporation, Shin Young Co., Ltd., Sungwoo Hitech Co., Ltd., MS Autotech Co., Ltd.Inventors: Dae Seung Kim, Chang Wook Park, Log Won Do, Sang Hoon Chae, Jang-Su Kim, Sang-Lae Lee, Mun Yong Lee, Sungyong Park, Dae-Ho Yang, Dae Keun Kim
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Patent number: 8888134Abstract: A mounting unit for a sub-frame of a vehicle is provided. The mounting unit is used for engaging a front side member with the vehicle's sub-frame. The mounting unit includes a welding seat that is formed as a groove on a lower side of the front side member. The mounting unit further includes a mounting nut assembled with the front side member, a welding flange integrated with an external circumference and a head of the mounting nut and inserted into the welding seat to be combined with the welding seat, and a member seat that is formed outside the welding flange and with which a fender upper connecting member is combined.Type: GrantFiled: October 30, 2013Date of Patent: November 18, 2014Assignees: Hyundai Motor Company, Kia Motors Corporation, Shin Young Co., Ltd., Sungwoo Hitech Co., Ltd., MS Autotech Co., Ltd.Inventors: Dae Seung Kim, Chang Wook Park, Jang-Su Kim, Mun Yong Lee, Sungyong Park, Daeho Yang, Dae Keun Kim, Sang Hoon Chae, Sang-Lae Lee
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Publication number: 20140159432Abstract: A roof side rail is connected to a roof panel and includes a multi-sectional rail having a plurality of integrally formed ribs and bent along a shape of an upper portion of a side surface of a vehicle body, and a reinforcement rail that is combined with an inner side surface of the rail, an upper side flange is connected to the roof panel, and a lower side flange is engaged with a weather strip.Type: ApplicationFiled: December 6, 2013Publication date: June 12, 2014Applicants: Hyundai Motor Company, Kia Motors Corporation, MS AUTOTECH CO., LTD., SUNGWOO HITECH CO., LTD., SHIN YOUNG CO., LTD.Inventors: Dae Seung KIM, Chang Wook PARK, Log Won DO, Sang Hoon CHAE, Jang-Su KIM, Sang-Lae LEE, Mun Yong LEE, Sungyong PARK, Dae-Ho YANG, Dae Keun KIM
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Publication number: 20140157603Abstract: A method of assembling a sub-frame of a vehicle with the front side member of the vehicle includes integrally forming a supporting end of a mounting nut that protrudes in a radial direction in a center of an external circumference of the mounting nut, forming a through hole in a lower surface of the front side member, forming a seat as a groove in an internal surface of the through hole, inserting a lower end of the mounting nut into the through hole so that the supporting end is supported by a circumference of the through hole, settling a head of the mounting nut in the seat, and welding the supporting end and the head along the circumference of the through hole and a side of the seat to assemble the sub-frame to the front side member.Type: ApplicationFiled: December 6, 2013Publication date: June 12, 2014Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, MS AUTOTECH CO., LTD., SUNGWOO HITECH CO., LTD.Inventors: Dae Seung KIM, Chang Wook PARK, Heui Won YANG, Log Won DO, Sang Hoon CHAE, Jang-Soo KIM, Sang-Lae LEE, Mun Yong LEE, Daeho YANG, Sungyong PARK, Dae Keun KIM
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Publication number: 20140159411Abstract: A mounting unit for a sub-frame of a vehicle is provided. The mounting unit is used for engaging a front side member with the vehicle's sub-frame. The mounting unit includes a welding seat that is formed as a groove on a lower side of the front side member. The mounting unit further includes a mounting nut assembled with the front side member, a welding flange integrated with an external circumference and a head of the mounting nut and inserted into the welding seat to be combined with the welding seat, and a member seat that is formed outside the welding flange and with which a fender upper connecting member is combined.Type: ApplicationFiled: October 30, 2013Publication date: June 12, 2014Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, MS AUTOTECH CO., LTD., SUNGWOO HITECH CO., LTD., SHIN YOUNG CO., LTD.Inventors: Dae Seung KIM, Chang Wook PARK, Jang-Su KIM, Mun Yong LEE, Sungyong PARK, Daeho YANG, Dae Keun KIM, Sang Hoon CHAE, Sang-Lae LEE
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Patent number: 7590089Abstract: Disclosed is a method for selecting transport formats corresponding to transport channels in a wideband code division multiple access mobile communication system.Type: GrantFiled: November 15, 2004Date of Patent: September 15, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Sung-Wook Park, Kang-Gyu Lee, Sang-Hoon Chae, Jin-Young Oh
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Patent number: 7535886Abstract: A method for improving the data processing speed in a mobile communication system employing a High Speed Downlink Packet Access (HSDPA) is provided. A data unit for the HSDPA services is produced by inserting a header padding field into a header of the data unit, and transmitting the produced data unit.Type: GrantFiled: January 13, 2005Date of Patent: May 19, 2009Assignee: Samsung Electronics Co., LtdInventors: Kang-Gyu Lee, Sung-Wook Park, Sang-Hoon Chae, Jin-Young Oh, Sang-Jun Na
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Patent number: 7366122Abstract: Disclosed is a process for processing an MAC-hs PDU (Protocol Data Unit) in an HSDPA (High Speed Downlink Packet Access) communication system, transmitting at least one PDU (Protocol Data Unit) received over a physical (PHY) layer to an MAC (Media Access Control) layer in an HSDPA (High Speed Downlink Packet Access) communication system, includes an HS-DSCH (High Speed-Downlink Shared Channel) decoder for decoding the PDU at intervals of a first period during which the PDU is received from the PHY layer, and storing the decoded PDU in a first memory; a second memory for storing a control table containing position and number information of the PDU, and performing a reordering queue operation on the basis of the position and number information of the PDU; an HSDPA (High Speed Downlink Packet Access) controller for reading the PDU from the first memory, storing the read PDU in the second memory, monitoring the second memory during a second period which is longer than the first period, updating the number of PDUsType: GrantFiled: December 7, 2004Date of Patent: April 29, 2008Assignee: Samsung Electronics Co., LtdInventors: Kang-Gyu Lee, Sung-Wook Park, Sang-Hoon Chae, Jin-Young Oh
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Publication number: 20050185608Abstract: A method for improving the data processing speed in a mobile communication system employing a High Speed Downlink Packet Access (HSDPA) is provided. A data unit for the HSDPA services is generated by adding a field for identifying a destination logical channel to the header of the data unit and inserting a header padding field into the header, and transmitting the generated data unit.Type: ApplicationFiled: January 13, 2005Publication date: August 25, 2005Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Kang-Gyu Lee, Sung-Wook Park, Sang-Hoon Chae, Jin-Young Oh, Sang-Jun Na
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Publication number: 20050174985Abstract: A method for improving the data processing speed in a mobile communication system employing a High Speed Downlink Packet Access (HSDPA) is provided. A data unit for the HSDPA services is produced by inserting a header padding field into a header of the data unit, and transmitting the produced data unit.Type: ApplicationFiled: January 13, 2005Publication date: August 11, 2005Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Kang-Gyu Lee, Sung-Wook Park, Sang-Hoon Chae, Jin-Young Oh, Sang-Jun Na
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Publication number: 20050136919Abstract: Disclosed is a method for selecting transport formats corresponding to transport channels in a wideband code division multiple access mobile communication system.Type: ApplicationFiled: November 15, 2004Publication date: June 23, 2005Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sung-Wook Park, Kang-Gyu Lee, Sang-Hoon Chae, Jin-Young Oh