Patents by Inventor Yong Ham
Yong Ham 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).
-
Publication number: 20240093066Abstract: The present invention provides a specific acrylate compound component for a pressure-sensitive adhesive composition where it has excellent wettability, light resistance, and heat resistance. Moreover, it provides the pressure-sensitive adhesive composition which can cover step differences and defects and can minimize air bubbles or liftings between laminated layers while satisfying fundamentally required physical properties such as durability and pressure-sensitive adhesive. Especially, it provides the pressure-sensitive adhesive composition capable of minimizing air bubbles or liftings between laminated layers while satisfying fundamentally required physical properties such as durability and pressure-sensitive adhesive even when left at high temperature for a long time. It also provides an optical pressure-sensitive adhesive product which can cover defects located between laminated layers for a display module or a transparent electrode product.Type: ApplicationFiled: August 8, 2023Publication date: March 21, 2024Inventors: Moon Ho HAM, Hong JANG, Ye Pil KWON, Jang Hee CHO, Seong Yong YOON, Jee Hong MIN
-
Publication number: 20230041426Abstract: In a soft actuator, a soft actuator assembly having the soft actuator, and a wearable robot having the soft actuator or the soft actuator assembly, the soft actuator includes a first spring bundle, a first conductive pad and a second conductive pad. The first spring bundle has a plurality of fine wires, and is configured to be capable of being changed between a contraction state and a relaxation state according to a change of temperature. The first conductive pad has a first connector electrically connected to a first end of the first spring bundle. The second conductive pad has a second connector electrically connected to a second end of the first spring bundle. The first connector is fixed between the first conductive pad and the first spring bundle, and the second connector is fixed between the second conductive pad and the first spring bundle.Type: ApplicationFiled: December 7, 2020Publication date: February 9, 2023Inventors: Cheol-hoon PARK, Seyoung KIM, Sung-Hyuk SONG, Hyunuk SEO, Sang-Yong HAM, Hyun Mok JUNG, Byung In KIM, Seongjun PARK, Kyungjun CHOI
-
Publication number: 20220213875Abstract: In a soft actuator having a cooler, a wearable robot having the soft actuator, a massage device having the soft actuator, and a method for controlling the soft actuator, the soft actuator includes a heat reaction member, a cooling part and a controller. The heat reaction member is configured to be contracted or relaxed according to a temperature change. The cooling part includes a cooling surface disposed at the heat reaction member, and a heating surface disposed opposite to the cooling surface. The controller is configured to control a power supply part so that a power is blocked to be supplied to the heat reaction member and the power is supplied to the cooling part, when the heat reaction member is changed to be a relaxation state.Type: ApplicationFiled: March 25, 2020Publication date: July 7, 2022Inventors: Cheol-Hoon PARK, Seyoung KIM, Sung-Hyuk SONG, Hyunuk SEO, Young-Su SON, Sang-Yong HAM, Byungin KIM, Hyunmok JUNG, Seongjun PARK, Kyungjun CHOI
-
Patent number: 10792806Abstract: In a driving device of an artificial muscle module and a driving method thereof, the driving device includes a fluid tank unit, a fluid providing line, a fluid collecting line, a circulation pump unit, a temp control unit and a fluid distributing unit. The fluid providing line includes high temp and low temp water tanks. The fluid providing line connects a first side of the artificial muscle module to the fluid tank unit. The fluid collecting line connects a second side of the artificial muscle module to the fluid tank unit. The circulation pump unit is positioned at least one of the fluid providing line and the fluid collecting line. The temp control unit controls temperature of the fluid. The fluid distributing unit is positioned at the fluid collecting line, and distributes the fluid in the fluid collecting line.Type: GrantFiled: November 30, 2017Date of Patent: October 6, 2020Assignee: KOREA INSTITUTE OF MACHINERY & MATERIALSInventors: Cheol-hoon Park, Young-su Son, Sang-yong Ham, Sang-kyu Choi, Doo-euy Hong, Kyung-jun Choi, Seong-joon Park
-
Publication number: 20190152052Abstract: In a driving device of an artificial muscle module and a driving method thereof, the driving device includes a fluid tank unit, a fluid providing line, a fluid collecting line, a circulation pump unit, a temp control unit and a fluid distributing unit. The fluid providing line includes high temp and low temp water tanks. The fluid providing line connects a first side of the artificial muscle module to the fluid tank unit. The fluid collecting line connects a second side of the artificial muscle module to the fluid tank unit. The circulation pump unit is positioned at least one of the fluid providing line and the fluid collecting line. The temp control unit controls temperature of the fluid. The fluid distributing unit is positioned at the fluid collecting line, and distributes the fluid in the fluid collecting line.Type: ApplicationFiled: November 30, 2017Publication date: May 23, 2019Inventors: Cheol-hoon PARK, Young-su SON, Sang-yong HAM, Sang-kyu CHOI, Doo-euy HONG, Kyung-jun CHOI, Seong-joon PARK
-
Patent number: 10001165Abstract: The present invention relates to a thrust magnetic bearing for bias compensation, and more particularly, to a thrust magnetic bearing for bias compensation in which annular permanent magnets and electromagnets are disposed to face each other with respect to a levitated member and the permanent magnets are formed to be asymmetrical in lengths thereof in an axial direction to thus exert an attractive force for compensating for a bias by the difference in the lengths of the permanent magnets in the axial direction to compensate for the bias, and a current supply for bias magnetic flux is not required, saving energy.Type: GrantFiled: March 31, 2015Date of Patent: June 19, 2018Assignee: KOREA INSTITUTE OF MACHINERY & MATERIALSInventors: Cheol-hoon Park, Sang-Kyu Choi, Sang-Yong Ham
-
Patent number: 9273723Abstract: The present invention relates to a composite magnetic bearing having an auxiliary bearing coupled thereto, which has an improved structure for minimizing a length of a rotor and a system volume. The composite magnetic bearing of a radial type provided around a rotor having an auxiliary bearing coupled thereto for reducing friction, includes a magnetic bearing, and an auxiliary bearing fixed in the empty space in an inside of the stator cores on an inner side of a position the coils and the permanent magnets are provided thereto.Type: GrantFiled: June 17, 2013Date of Patent: March 1, 2016Assignee: KOREA INSTITUTE OF MACHINERY & MATERIALSInventors: Cheol-Hoon Park, Sang-Kyu Choi, Sang-Yong Ham, Doo Euy Hong, Tae Gwang Yoon
-
Publication number: 20150342411Abstract: The present invention relates to a dual content mixing container, and the dual content mixing container according to the present invention is constituted in such a way that a second content substance housed in a storage chamber is mixed with a first content substance housed in a main container body by moving a hermetically sealing member downwards by means of action whereby a rotating cap is rotated, and thus the invention affords convenience to the user as the first and second content substances can be mixed by means of a simple action.Type: ApplicationFiled: January 6, 2014Publication date: December 3, 2015Inventors: Su-Jin Son, Ki-Yong Ham, You-Seob Kim
-
Patent number: 9181977Abstract: The present invention provides an air-foil bearing including a damper body, a front welding plate, and a front top foil for increasing durability, and which has a first bending mode. The damper body includes a front body portion, a rear body portion, and a front protruded portion protruded upward from the front body portion to have a flat protruded surface, and the front welding plate includes a front first contact portion in surface contact with a top surface of the front protruded portion and a front second contact portion which is a portion that is bent from the front first contact portion in surface contact with the front welding plate.Type: GrantFiled: September 18, 2014Date of Patent: November 10, 2015Assignee: KOREA INSTITUTE OF MACHINERY & MATERIALSInventors: Cheol-hoon Park, Sang-Kyu Choi, Doo Euy Hong, Tae Gwang Yoon, Sung Hwi Lee, Sang-Yong Ham
-
Publication number: 20150316097Abstract: The present invention relates to a thrust magnetic bearing for bias compensation, and more particularly, to a thrust magnetic bearing for bias compensation in which annular permanent magnets and electromagnets are disposed to face each other with respect to a levitated member and the permanent magnets are formed to be asymmetrical in lengths thereof in an axial direction to thus exert an attractive force for compensating for a bias by the difference in the lengths of the permanent magnets in the axial direction to compensate for the bias, and a current supply for bias magnetic flux is not required, saving energy.Type: ApplicationFiled: March 31, 2015Publication date: November 5, 2015Inventors: Cheol-hoon PARK, Sang-Kyu Choi, Sang-Yong Ham
-
Patent number: 9041266Abstract: Disclosed is a magnetic bearing structure including a permanent magnet, levitating a rotation body without a bias current, and easily magnetizing the permanent magnet. The magnetic bearing structure includes a ring-shaped permanent magnet provided on a side of a rotation shaft and magnetized in a direction parallel with a shaft direction of the rotation shaft, a coil installed on a side of the permanent magnet, and a conductor installed on an external side of the coil and used to form a magnetic field path. According to the configuration, when an additional bias current is not supplied to the coil installed in the magnetic bearing, a rotation body levitates according to the magnetic field caused by the permanent magnet, and a magnetized direction of the permanent magnet is in parallel with a shaft direction of the rotation shaft thereby allowing easy magnetization and increasing productivity of the magnetic bearing.Type: GrantFiled: March 10, 2011Date of Patent: May 26, 2015Assignee: KOREA INSTITUTE OF MACHINERY & MATERIALSInventors: Cheol Hoon Park, Sang-Kyu Choi, Sang Yong Ham, Dong-Won Yun
-
Patent number: 8998493Abstract: A split combo bearing including a damper body that has a through-hole through which a rotor shaft passes, a cover that covers both axial sides of the damper body and a predetermined area of the outer circumference of the damper body, a thrust bump that is fixed to the side of the cover, which is in contact with the impeller on a rotor shaft, and is arranged circumferentially around the through-hole, a thrust top foil that is axially fixed to the outermost side of the thrust bump, and a radial top foil that is formed to cover the rotor shaft, and is disposed between the outer side of the rotor shaft and the inner side of the through-hole of the damper body.Type: GrantFiled: April 29, 2014Date of Patent: April 7, 2015Assignee: Korea Institute of Machinery & MaterialsInventors: Cheol-hoon Park, Sang-Kyu Choi, Sung Hwi Lee, Sang-Yong Ham, Doo Euy Hong, Tae Gwang Yoon
-
Publication number: 20150086141Abstract: The present invention provides an air-foil bearing including a damper body, a front welding plate, and a front top foil for increasing durability, and which has a first bending mode. The damper body includes a front body portion, a rear body portion, and a front protruded portion protruded upward from the front body portion to have a flat protruded surface, and the front welding plate includes a front first contact portion in surface contact with a top surface of the front protruded portion and a front second contact portion which is a portion that is bent from the front first contact portion in surface contact with the front welding plate.Type: ApplicationFiled: September 18, 2014Publication date: March 26, 2015Inventors: Cheol-hoon PARK, Sang-Kyu Choi, Doo Euy Hong, Tae Gwang Yoon, Sung Hwi Lee, Sang-Yong Ham
-
Publication number: 20140361651Abstract: The present invention relates to a composite magnetic bearing having an auxiliary bearing coupled thereto, which has an improved structure for minimizing a length of a rotor and a system volume. The composite magnetic bearing of a radial type provided around a rotor having an auxiliary bearing coupled thereto for reducing friction, includes a magnetic bearing, and an auxiliary bearing fixed in the empty space in an inside of the stator cores on an inner side of a position the coils and the permanent magnets are provided thereto.Type: ApplicationFiled: June 17, 2013Publication date: December 11, 2014Inventors: Cheol-Hoon Park, Sang-Kyu Choi, Sang-Yong Ham, Doo Euy Hong, Tae Gwang Yoon
-
Publication number: 20140321779Abstract: The present invention provides a split combo bearing including: a damper body that has a through-hole through which a rotor shaft passes and is composed of two or more first separate bodies that are axially separated; a cover that covers both axial sides of the damper body and a predetermined area of the outer circumference of the damper body and is composed of two or more second separate bodies that are radially separated to correspond to the first separate bodies; a thrust bump that is fixed to the side of the cover, which faces an impeller on a rotor shaft, is arranged circumferentially around the through-hole, and is formed by bending a thin plate with a wavy surface; a thrust top foil that is axially fixed to the outermost side of the thrust bump and is formed by bending a thin plate; and a radial top foil that is formed to cover the rotor shaft, is disposed between the outer side of the rotor shaft and the inner side of the through-hole of the damper body, has an insertion of which one end is installedType: ApplicationFiled: April 29, 2014Publication date: October 30, 2014Applicant: KOREA INSTITUTE OF MACHINERY & MATERIALSInventors: Cheol-hoon PARK, Sang-Kyu CHOI, Sung Hwi LEE, Sang-Yong HAM, Doo Euy HONG, Tae Gwang YOON
-
Publication number: 20130009501Abstract: Disclosed is a magnetic bearing structure including a permanent magnet, levitating a rotation body without a bias current, and easily magnetizing the permanent magnet. The magnetic bearing structure includes a ring-shaped permanent magnet provided on a side of a rotation shaft and magnetized in a direction parallel with a shaft direction of the rotation shaft, a coil installed on a side of the permanent magnet, and a conductor installed on an external side of the coil and used to form a magnetic field path. According to the configuration, when an additional bias current is not supplied to the coil installed in the magnetic bearing, a rotation body levitates according to the magnetic field caused by the permanent magnet, and a magnetized direction of the permanent magnet is in parallel with a shaft direction of the rotation shaft thereby allowing easy magnetization and increasing productivity of the magnetic bearing.Type: ApplicationFiled: March 10, 2011Publication date: January 10, 2013Applicant: KOREA INSTITUTE OF MACHINERY & MATERIALSInventors: Cheol Hoon Park, Sang-Kyu Chol, Sang Yong Ham, Dong-Won Yun
-
Patent number: 8160597Abstract: An apparatus and method for allocations segments in a broadband wireless communication system is provided. Sector pairs are generated with respect to all sectors existing in different cells and the generated sector pairs are sorted according to priority based on a proximity. A sector pair having a top priority among unselected sector pairs is selected. Segments are allocated to all sectors of a cell including each sector of the selected sector pair. Accordingly, segments can be allocated to sectors while minimizing downlink throughput deterioration caused by segment duplication.Type: GrantFiled: October 12, 2007Date of Patent: April 17, 2012Assignees: Samsung Electronics Co., Ltd, Korea Advanced Institute of Science and TechnologyInventors: Ki-Won Sung, Chae-Young Lee, Seung-Yong Ham, Ho-Dong Kim, Sang-Min Oh
-
Patent number: 7945268Abstract: An apparatus and a method for allocating IDcells in a wireless communication system are provided, in which an initial IDcell allocation is performed by allocating entire sectors to elements of an N×M IDcell matrix, a sector pair with the highest proximity is selected for each IDcell in the initial allocation, an IDcell with a sector pair having the highest of the proximities of the selected sector pairs is determined as a target IDcell, one sector of the sector pair with the highest proximity for the target IDcell is selected as a target sector, a predetermined number of sectors are selected for each of the other IDcells except for the target IDcell, from among sectors to which the each of the other IDcells is allocated, and the IDcell of the target sector is swapped with the IDcell of a sector satisfying a first condition among the selected sectors.Type: GrantFiled: October 12, 2007Date of Patent: May 17, 2011Assignees: Samsung Electronics Co., Ltd, Korea Advanced Institute of Science and TechnologyInventors: Ki-Won Sung, Chae-Young Lee, Seung-Yong Ham, Ho-Dong Kim, Sang-Min Oh
-
Publication number: 20080088828Abstract: A polarization direction measuring apparatus includes: a first polarizing plate having an unknown polarization direction about a reference axis; a sample whose polarization direction is to be measured; a rotatable sample holder on which the sample is mounted in a first direction and a second direction opposite to the first direction, wherein the sample holder rotates the sample along a reference axis in the azimuth direction; a light source that generates light passing though the first polarizing plate and the sample; and a light detector detecting light generated by the light source that passes though the first polarizing plate and the sample.Type: ApplicationFiled: June 29, 2007Publication date: April 17, 2008Applicant: LG.PHILIPS LCD CO., LTD.Inventors: Yong Ham, Jong Moon, Jin Jeong
-
Publication number: 20080090577Abstract: An apparatus and a method for allocating IDcells in a wireless communication system are provided, in which an initial IDcell allocation is performed by allocating entire sectors to elements of an N×M IDcell matrix, a sector pair with the highest proximity is selected for each IDcell in the initial allocation, an IDcell with a sector pair having the highest of the proximities of the selected sector pairs is determined as a target IDcell, one sector of the sector pair with the highest proximity for the target IDcell is selected as a target sector, a predetermined number of sectors are selected for each of the other IDcells except for the target IDcell, from among sectors to which the each of the other IDcells is allocated, and the IDcell of the target sector is swapped with the IDcell of a sector satisfying a first condition among the selected sectors.Type: ApplicationFiled: October 12, 2007Publication date: April 17, 2008Applicants: SAMSUNG ELECTRONICS CO., LTD., KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Ki-Won Sung, Chae-Young Lee, Seung-Yong Ham, Ho-Dong Kim, Sang-Min Oh