Patents by Inventor Chang-Hee Choi
Chang-Hee Choi 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: 20240149498Abstract: An apparatus for molding a pouch includes: a die assembly with a die; a stripper assembly to press and fix both sides of a pouch film disposed on the die; and a punch assembly with a punch to mold an electrode assembly accommodation part in the pouch film. The stripper assembly includes: a stripper disposed at a punch assembly lower portion to press and fix the pouch film; a stripper driving piece at a punch assembly upper portion to provide force so that the stripper presses the pouch film; and a connection part to connect the stripper driving piece to the stripper to transmit the force. The connection part includes: two or more connection rods coupled to the stripper; a connection bar coupled to the stripper driving piece; and a connection piece to connect one or more of the connection rods to the connection bar to transmit the force.Type: ApplicationFiled: November 10, 2021Publication date: May 9, 2024Applicant: LG Energy Solution, Ltd.Inventors: Shin Chul Kim, Kwang Hee Choi, Chang Min Han
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Publication number: 20240120276Abstract: A three-dimensional semiconductor integrated circuit device including an inter-die interface is provided. The device includes a top die including a plurality of micro cells provided on a top surface of the top die, a plurality of micro bumps provided on a bottom surface of the top die, and wiring patterns connecting the plurality of micro cells to the plurality of micro bumps; and a bottom die including a plurality of macro cells provided on a top surface thereof, wherein the plurality of macro cells are electrically connected to the plurality of micro bumps, respectively, wherein a size of a region in which the plurality of micro cells are provided is smaller than a size of a region in which the plurality of micro bumps are provided.Type: ApplicationFiled: July 27, 2023Publication date: April 11, 2024Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jae Seung CHOI, Byung-Su KIM, Bong Il PARK, Chang Seok KWAK, Sun Hee PARK, Sang Joon CHEON
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Publication number: 20240074258Abstract: An electronic device includes a display device, which may be fabricated using a described method. The display device includes a glass substrate including a first surface, a second surface opposite the first surface, and a side surface between the first surface and the second surface, an outermost structure on the first surface of the glass substrate and located adjacent to an edge of one side of the glass substrate, and a display area including a plurality of light emitting areas on the first surface of the glass substrate and located farther from the edge of the one side of the glass substrate than the outermost structure is. A minimum distance from the side surface of the glass substrate to the outermost structure is equal to 130 ?m or less.Type: ApplicationFiled: May 5, 2023Publication date: February 29, 2024Inventors: Wan Jung KIM, Dong Jo KIM, Sun Hwa KIM, Young Ji KIM, Chang Sik KIM, Kyung Ah NAM, Hyo Young MUN, Yong Seung PARK, Yi Seul UM, Dae Sang YUN, Kwan Hee LEE, So Young LEE, Young Hoon LEE, Young Seo CHOI, Sun Young KIM, Ji Won SOHN, Do Young LEE, Seung Hoon LEE
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Publication number: 20240019893Abstract: A bendable display device includes a display module; and a bending system on a rear surface of the display module and configured to change the display module between a flat mode and a bended mode, wherein the bending system includes a fixed plate, a rotating plate, and first and second horizontal bars, wherein the rotating plate has a pinion portion, and wherein the first and second horizontal bars have first and second rack portions engaged with the pinion portion at one ends thereof, respectively.Type: ApplicationFiled: July 7, 2023Publication date: January 18, 2024Inventors: Yong-Ik HWANG, Chang-Hee CHOI
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Publication number: 20230308462Abstract: Provided is a method for training an attack prediction model, including obtaining an attack dataset including at least one attack datum, analyzing the attack dataset based on tactics and techniques, generating a sequence for the at least one attack datum based on the analysis, and training the attack prediction model based on the sequence, and provided is a device for training the digital attack prediction model.Type: ApplicationFiled: March 24, 2023Publication date: September 28, 2023Inventors: Chang Hee CHOI, Chan Ho SHIN, Sung Uk SHIN, Seong Yun SEO, In Seop LEE
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Patent number: 11731203Abstract: A cutting insert and a cutting tool assembly for cutting a workpiece. The cutting tool assembly includes a cutting insert having an upper surface that has a quadrilateral shape so as to include first to fourth insert corner portions, and a shim configured to support the insert. The insert includes an upper surface and a lower surface on which first to sixth inclined mounting portions are respectively formed. The shim simultaneously supports the first to third inclined mounting portions, or simultaneously supports the fourth to sixth inclined mounting portions.Type: GrantFiled: March 26, 2019Date of Patent: August 22, 2023Assignee: TaeguTec Ltd.Inventors: Chang Hee Choi, Chang Won Jeong
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Patent number: 11717895Abstract: Embodiments of a cutting insert are provided. The cutting insert includes an upper surface, a lower surface, a plurality of side surfaces extending between the upper surface and the lower surface, an insert hole extending through the upper surface and the lower surface, and a corner portion provided with a cutting edge. At least one of the upper surface and the lower surface has a plurality of recesses extending between the insert hole and the corner portion. The plurality of recesses includes a first recess into which one portion of the mounting portion is inserted when the cutting insert is supported by the mounting portion, and a second recess into which another portion of the mounting portion is inserted when the cutting insert is supported by the mounting portion. The second recess has a side wall spaced apart from another portion of the mounting portion.Type: GrantFiled: May 21, 2021Date of Patent: August 8, 2023Assignee: TaeguTec Ltd.Inventors: Chang Hee Choi, Chang Won Jeong
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Publication number: 20220371101Abstract: Embodiments of a cutting insert are provided. The cutting insert includes an upper surface, a lower surface, a plurality of side surfaces extending between the upper surface and the lower surface, an insert hole extending through the upper surface and the lower surface, and a corner portion provided with a cutting edge. At least one of the upper surface and the lower surface has a plurality of recesses extending between the insert hole and the corner portion. The plurality of recesses includes a first recess into which one portion of the mounting portion is inserted when the cutting insert is supported by the mounting portion, and a second recess into which another portion of the mounting portion is inserted when the cutting insert is supported by the mounting portion. The second recess has a side wall spaced apart from another portion of the mounting portion.Type: ApplicationFiled: May 21, 2021Publication date: November 24, 2022Applicant: TAEGUTEC LTD.Inventors: CHANG HEE CHOI, CHANG WON JEONG
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Publication number: 20210114118Abstract: A cutting insert and a cutting tool assembly for cutting a workpiece. The cutting tool assembly includes a cutting insert having an upper surface that has a quadrilateral shape so as to include first to fourth insert corner portions, and a shim configured to support the insert. The insert includes an upper surface and a lower surface on which first to sixth inclined mounting portions are respectively formed. The shim simultaneously supports the first to third inclined mounting portions, or simultaneously supports the fourth to sixth inclined mounting portions.Type: ApplicationFiled: March 26, 2019Publication date: April 22, 2021Inventors: CHang Hee CHOI, Chang Won JEONG
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Patent number: 10743429Abstract: The present invention relates to a rollable display device. A rollable display device includes a display module including a flexible display panel; and a support unit disposed at a rear surface of the display module and including a bar-shaped rigid plate and a cover configured to fix the rigid plate to the rear surface of the display module, wherein the bar-shaped rigid plate has a first hardness, and wherein the bar-shaped rigid plate is in close contact with and fixed to the cover having a second hardness lower than the first hardness, so that the bar-shaped rigid plate is free from the display module. The rollable display device may have improved rigidity in an unrolled state.Type: GrantFiled: September 19, 2019Date of Patent: August 11, 2020Assignee: LG Display Co., Ltd.Inventor: Chang-Hee Choi
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Publication number: 20200100371Abstract: The present invention relates to a rollable display device. A rollable display device includes a display module including a flexible display panel; and a support unit disposed at a rear surface of the display module and including a bar-shaped rigid plate and a cover configured to fix the rigid plate to the rear surface of the display module, wherein the bar-shaped rigid plate has a first hardness, and wherein the bar-shaped rigid plate is in close contact with and fixed to the cover having a second hardness lower than the first hardness, so that the bar-shaped rigid plate is free from the display module. The rollable display device may have improved rigidity in an unrolled state.Type: ApplicationFiled: September 19, 2019Publication date: March 26, 2020Applicant: LG Display Co., Ltd.Inventor: Chang-Hee CHOI
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Patent number: 10391567Abstract: A rotary cutting tool for slotting and a cutting insert replaceably mounted to such a rotary cutting tool. The cutting insert is mounted to an insert pocket of a tool body of the rotary cutting tool and is pressed by an elastic pressure portion provided in the tool body. The cutting insert has an upper surface, a lower surface and four peripheral side surfaces. The top and lower surfaces have an inclined surface pressed by the elastic pressure portion. When the cutting insert is mounted to the insert pocket, the inclined surface of the upper surface is pressed by the elastic pressure portion. The inclined surface is inclined with respect to a cross section of the cutting insert such that the lower surface and two peripheral side surfaces of the cutting insert are contacted with the insert pocket by pressure of the elastic pressure portion.Type: GrantFiled: December 7, 2015Date of Patent: August 27, 2019Assignee: TaeguTec Ltd.Inventors: Chang Hee Choi, Chang Gyu Park, Su Jin Ryu
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Patent number: 10097569Abstract: An attack tracking system includes multiple hosts in which first event data concerning object behavior are collected and pieces of host-based event information are created therefrom; a tracking information database server storing the pieces of host-based event information; a tracking information analysis server creating behavior events by defining malware behavior from the pieces of host-based event information, retrieving targets to be analyzed from the pieces of host-based event information and the behavior events based on a preset input value, creating first tracking contexts for identifying the malware behavior by analyzing the relationship between the pieces of host-based event information and the relationship between a set of the pieces of host-based event information and a set of the behavior events, and creating second tracking contexts tracking malware routes and behavior events between the multiple hosts by analyzing the correlation between the first tracking contexts.Type: GrantFiled: September 23, 2016Date of Patent: October 9, 2018Assignee: AGENCY FOR DEFENSE DEVELOPMENTInventors: Il-Hoon Jeong, Hwa-Seong Lee, Chang-Hee Choi, Ho-Sang Yun
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Patent number: 9868157Abstract: A cutting tool assembly has a cutter body, a clamp pin, a cutting insert and a set screw. The clamp pin is inserted to the cutter body to secure the cutting insert to an insert pocket. The set screw is fastened to a threaded hole of the cutter body to press the clamp pin toward the insert pocket. A side surface of the cutting insert contacts a side wall of the insert pocket at a first contact portion. A head of the clamp pin contact an inner peripheral surface of a bore of the cutting insert at a second contact portion. The first and second contact portions are located such that a moment acts on the cutting insert toward the base wall of the insert pocket around the first contact portion.Type: GrantFiled: August 6, 2013Date of Patent: January 16, 2018Assignee: TAEGUTEC LTD.Inventors: Chang Hee Choi, Chang Gyu Park
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Publication number: 20170374086Abstract: An attack tracking system includes multiple hosts in which first event data concerning object behavior are collected and pieces of host-based event information are created therefrom; a tracking information database server storing the pieces of host-based event information; a tracking information analysis server creating behavior events by defining malware behavior from the pieces of host-based event information, retrieving targets to be analyzed from the pieces of host-based event information and the behavior events based on a preset input value, creating first tracking contexts for identifying the malware behavior by analyzing the relationship between the pieces of host-based event information and the relationship between a set of the pieces of host-based event information and a set of the behavior events, and creating second tracking contexts tracking malware routes and behavior events between the multiple hosts by analyzing the correlation between the first tracking contexts.Type: ApplicationFiled: September 23, 2016Publication date: December 28, 2017Inventors: Il-Hoon JEONG, Hwa-Seong LEE, Chang-Hee CHOI, Ho-Sang YUN
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Publication number: 20170368617Abstract: A rotary cutting tool for slotting and a cutting insert replaceably mounted to such a rotary cutting tool. The cutting insert is mounted to an insert pocket of a tool body of the rotary cutting tool and is pressed by an elastic pressure portion provided in the tool body. The cutting insert has an upper surface, a lower surface and four peripheral side surfaces. The top and lower surfaces have an inclined surface pressed by the elastic pressure portion. When the cutting insert is mounted to the insert pocket, the inclined surface of the upper surface is pressed by the elastic pressure portion. The inclined surface is inclined with respect to a cross section of the cutting insert such that the lower surface and two peripheral side surfaces of the cutting insert are contacted with the insert pocket by pressure of the elastic pressure portion.Type: ApplicationFiled: December 7, 2015Publication date: December 28, 2017Applicant: TaeguTec, Ltd.Inventors: Chang Hee CHOI, Chang Gyu PARK, Su Jin RYU
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Patent number: 9682433Abstract: A cutting insert mountable in an insert pocket of a milling cutter and capable of effectively absorbing a radially outward force during high speed machining and high ramp machining. The cutting insert has a top surface, a bottom surface, peripheral surfaces extending between the top and bottom surfaces, a mounting hole extending through the top surface and the bottom surface, a protrusion portion protruding from the bottom surface, and a pair of lower inclined abutment surfaces formed at opposite edges of the bottom surface. The lower inclined abutment surfaces are inclined in opposite directions toward a pair of opposing peripheral surfaces, outwardly and upwardly relative to the protrusion portion. The protrusion portion extends across the mounting hole and has a lateral surface facing radially outwardly of the milling cutter. The lateral surface selectively contacts or does not contact the insert pocket depending on a revolution speed of the milling cutter.Type: GrantFiled: December 20, 2013Date of Patent: June 20, 2017Assignee: TAEGUTEC LTD.Inventors: Chang Hee Choi, Su Jin Ryu
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Patent number: 9237299Abstract: Discussed is a display apparatus which facilitates to minimize a thickness by innovatively removing a case and some portions of a set cover, which have been regarded as indispensible structures for the display apparatus, and simultaneously facilitates to realize a good sense of beauty in the display apparatus by a novel design, wherein the display apparatus comprises a set cover which has a space prepared by a sidewall; a display panel which includes lower and upper substrates bonded to each other; and a guide frame which supports the display panel, and seals a gap between a sidewall of the set cover and a lateral side of the display panel, wherein the guide frame is provided in the set cover.Type: GrantFiled: December 19, 2011Date of Patent: January 12, 2016Assignee: LG DISPLAY CO., LTD.Inventors: Kyoung Sang Yoon, Kyung Jae Park, Chang Hee Choi
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Patent number: D812116Type: GrantFiled: December 22, 2016Date of Patent: March 6, 2018Assignee: TaeguTec Ltd.Inventors: Chang-Hee Choi, Hee-Yun Son
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Patent number: D922459Type: GrantFiled: April 25, 2018Date of Patent: June 15, 2021Assignee: TaeguTec Ltd.Inventors: Chang-Hee Choi, Su-Jin Ryu