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: 20240093066
    Abstract: 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: Application
    Filed: August 8, 2023
    Publication date: March 21, 2024
    Inventors: Moon Ho HAM, Hong JANG, Ye Pil KWON, Jang Hee CHO, Seong Yong YOON, Jee Hong MIN
  • Publication number: 20230041426
    Abstract: 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: Application
    Filed: December 7, 2020
    Publication date: February 9, 2023
    Inventors: 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: 20220213875
    Abstract: 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: Application
    Filed: March 25, 2020
    Publication date: July 7, 2022
    Inventors: 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: 10792806
    Abstract: 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: Grant
    Filed: November 30, 2017
    Date of Patent: October 6, 2020
    Assignee: KOREA INSTITUTE OF MACHINERY & MATERIALS
    Inventors: Cheol-hoon Park, Young-su Son, Sang-yong Ham, Sang-kyu Choi, Doo-euy Hong, Kyung-jun Choi, Seong-joon Park
  • Publication number: 20190152052
    Abstract: 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: Application
    Filed: November 30, 2017
    Publication date: May 23, 2019
    Inventors: Cheol-hoon PARK, Young-su SON, Sang-yong HAM, Sang-kyu CHOI, Doo-euy HONG, Kyung-jun CHOI, Seong-joon PARK
  • Patent number: 10001165
    Abstract: 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: Grant
    Filed: March 31, 2015
    Date of Patent: June 19, 2018
    Assignee: KOREA INSTITUTE OF MACHINERY & MATERIALS
    Inventors: Cheol-hoon Park, Sang-Kyu Choi, Sang-Yong Ham
  • Patent number: 9273723
    Abstract: 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: Grant
    Filed: June 17, 2013
    Date of Patent: March 1, 2016
    Assignee: KOREA INSTITUTE OF MACHINERY & MATERIALS
    Inventors: Cheol-Hoon Park, Sang-Kyu Choi, Sang-Yong Ham, Doo Euy Hong, Tae Gwang Yoon
  • Publication number: 20150342411
    Abstract: 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: Application
    Filed: January 6, 2014
    Publication date: December 3, 2015
    Inventors: Su-Jin Son, Ki-Yong Ham, You-Seob Kim
  • Patent number: 9181977
    Abstract: 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: Grant
    Filed: September 18, 2014
    Date of Patent: November 10, 2015
    Assignee: KOREA INSTITUTE OF MACHINERY & MATERIALS
    Inventors: Cheol-hoon Park, Sang-Kyu Choi, Doo Euy Hong, Tae Gwang Yoon, Sung Hwi Lee, Sang-Yong Ham
  • Publication number: 20150316097
    Abstract: 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: Application
    Filed: March 31, 2015
    Publication date: November 5, 2015
    Inventors: Cheol-hoon PARK, Sang-Kyu Choi, Sang-Yong Ham
  • Patent number: 9041266
    Abstract: 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: Grant
    Filed: March 10, 2011
    Date of Patent: May 26, 2015
    Assignee: KOREA INSTITUTE OF MACHINERY & MATERIALS
    Inventors: Cheol Hoon Park, Sang-Kyu Choi, Sang Yong Ham, Dong-Won Yun
  • Patent number: 8998493
    Abstract: 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: Grant
    Filed: April 29, 2014
    Date of Patent: April 7, 2015
    Assignee: Korea Institute of Machinery & Materials
    Inventors: Cheol-hoon Park, Sang-Kyu Choi, Sung Hwi Lee, Sang-Yong Ham, Doo Euy Hong, Tae Gwang Yoon
  • Publication number: 20150086141
    Abstract: 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: Application
    Filed: September 18, 2014
    Publication date: March 26, 2015
    Inventors: Cheol-hoon PARK, Sang-Kyu Choi, Doo Euy Hong, Tae Gwang Yoon, Sung Hwi Lee, Sang-Yong Ham
  • Publication number: 20140361651
    Abstract: 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: Application
    Filed: June 17, 2013
    Publication date: December 11, 2014
    Inventors: Cheol-Hoon Park, Sang-Kyu Choi, Sang-Yong Ham, Doo Euy Hong, Tae Gwang Yoon
  • Publication number: 20140321779
    Abstract: 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 installed
    Type: Application
    Filed: April 29, 2014
    Publication date: October 30, 2014
    Applicant: KOREA INSTITUTE OF MACHINERY & MATERIALS
    Inventors: Cheol-hoon PARK, Sang-Kyu CHOI, Sung Hwi LEE, Sang-Yong HAM, Doo Euy HONG, Tae Gwang YOON
  • Publication number: 20130009501
    Abstract: 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: Application
    Filed: March 10, 2011
    Publication date: January 10, 2013
    Applicant: KOREA INSTITUTE OF MACHINERY & MATERIALS
    Inventors: Cheol Hoon Park, Sang-Kyu Chol, Sang Yong Ham, Dong-Won Yun
  • Patent number: 8160597
    Abstract: 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: Grant
    Filed: October 12, 2007
    Date of Patent: April 17, 2012
    Assignees: Samsung Electronics Co., Ltd, Korea Advanced Institute of Science and Technology
    Inventors: Ki-Won Sung, Chae-Young Lee, Seung-Yong Ham, Ho-Dong Kim, Sang-Min Oh
  • Patent number: 7945268
    Abstract: 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: Grant
    Filed: October 12, 2007
    Date of Patent: May 17, 2011
    Assignees: Samsung Electronics Co., Ltd, Korea Advanced Institute of Science and Technology
    Inventors: Ki-Won Sung, Chae-Young Lee, Seung-Yong Ham, Ho-Dong Kim, Sang-Min Oh
  • Publication number: 20080088828
    Abstract: 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: Application
    Filed: June 29, 2007
    Publication date: April 17, 2008
    Applicant: LG.PHILIPS LCD CO., LTD.
    Inventors: Yong Ham, Jong Moon, Jin Jeong
  • Publication number: 20080090577
    Abstract: 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: Application
    Filed: October 12, 2007
    Publication date: April 17, 2008
    Applicants: SAMSUNG ELECTRONICS CO., LTD., KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Ki-Won Sung, Chae-Young Lee, Seung-Yong Ham, Ho-Dong Kim, Sang-Min Oh