Patents by Inventor Taikjin Lee

Taikjin Lee 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: 20200346128
    Abstract: An assembly unit includes side plate having first coupling member on first side, second coupling member on second side, and third coupling member on each of third and fourth sides, top plate including fourth coupling member and top stud, and bottom plate including fifth coupling member and bottom stud. The first coupling member is engaged with the second coupling member of neighboring side plate. The fourth coupling member is engaged with the third coupling member. The fifth coupling member is engaged with the third coupling member. The first coupling member includes protrusion. The second coupling member includes groove. The protrusion is fitted into the groove of the neighboring side plate. The third coupling member includes thread. Each of the fourth and fifth coupling members includes thread. The fourth and fifth coupling members are engaged with the third coupling member in a screwed manner using the threads.
    Type: Application
    Filed: July 21, 2020
    Publication date: November 5, 2020
    Inventors: Seok LEE, Taikjin LEE, Jeong Hun SHIN, Won Kyo JEONG, Sun Ho KIM, Hyunsoo CHUNG, Hyunduk KIM, Yong-Joon PARK, Deokha WOO
  • Patent number: 10804674
    Abstract: Provided are a saturable absorber including at least one material selected from a group of MXenes, and a Q-switching and mode-locked pulsed laser system using the same.
    Type: Grant
    Filed: October 6, 2017
    Date of Patent: October 13, 2020
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Young Min Jhon, Young In Jhon, Byunghyuck Moon, Minah Seo, Taikjin Lee, Jae Hun Kim, Young Tae Byun, Seok Lee
  • Publication number: 20200274048
    Abstract: According to one aspect of the present invention, a switching device using an electron shuttle includes a substrate, a center portion fixed onto the substrate, a first wing portion extending from the center portion in a first direction and spaced apart from the substrate, a second wing portion extending from the center portion in a second direction and spaced apart from the substrate, a conductive first electron shuttle connected to the first wing portion and disposed to be spaced apart from the substrate, and a conductive second electron shuttle connected to the second wing portion and disposed to be spaced apart from the substrate.
    Type: Application
    Filed: October 29, 2019
    Publication date: August 27, 2020
    Inventors: Chulki KIM, Jae Hun KIM, Taikjin LEE, Minah SEO, Donggeun LEE
  • Patent number: 10746847
    Abstract: The present invention relates to wireless localization method and apparatus of high accuracy, and measures strength of at least one signal that is transmitted from at least one fixed node, estimates a relative position of a moving node, generates a change pattern of at least one signal strength according to relative changes in positions of the moving node over a plurality of time points from at least one signal strength and the relative position of the moving node, and estimates an absolute position of the moving node, based on a comparison between the change pattern of the at least one signal strength and a map of a distribution pattern shape of signal strength in a region where the moving node is located. Accordingly, it is possible to accurately estimate a position of a moving node using a radio signal which not only accurately estimates the position of the moving node even in a change of wireless environment but also has almost no change in signal strength over a wide region.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: August 18, 2020
    Assignee: Korea Institute of Science and Technology
    Inventors: Taikjin Lee, Youngmin Jhon, Jaehun Kim, Boseon Yu, Beomju Shin, Jaewon Bang
  • Patent number: 10737190
    Abstract: A smart toy platform includes a body including a top part, a bottom part, and a plurality of side parts, a function unit coupled to at least one of the plurality of side parts an application unit arranged in the body and to control an operation of the function unit, a base unit arranged in the body and to provide an application support function to the application unit, and a power supply unit configured to supply electric power to at least one of the function unit, the application unit, or the base unit. The function unit is coupled to the at least one of the plurality of side parts on an inner side or an outer side, across the inner side and the outer side, or an integrate manner.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: August 11, 2020
    Assignee: CREAMO INC.
    Inventors: Seok Lee, Taikjin Lee, Hyunduk Kim, Jeong Hun Shin, Won Kyo Jeong, Soo Jung Hur, Yong-Joon Park, Deokha Woo
  • Patent number: 10737191
    Abstract: An assembly unit includes side plate having first coupling member on first side, second coupling member on second side, and third coupling member on each of third and fourth sides, top plate including fourth coupling member and top stud, and bottom plate including fifth coupling member and bottom stud. The first coupling member is engaged with the second coupling member of neighboring side plate. The fourth coupling member is engaged with the third coupling member. The fifth coupling member is engaged with the third coupling member. The first coupling member includes protrusion. The second coupling member includes groove. The protrusion is fitted into the groove of the neighboring side plate. The third coupling member includes thread. Each of the fourth and fifth coupling members includes thread. The fourth and fifth coupling members are engaged with the third coupling member in a screwed manner using the threads.
    Type: Grant
    Filed: October 4, 2018
    Date of Patent: August 11, 2020
    Assignee: CREAMO INC.
    Inventors: Seok Lee, Taikjin Lee, Jeong Hun Shin, Won Kyo Jeong, Sun Ho Kim, Hyunsoo Chung, Hyunduk Kim, Yong-Joon Park, Deokha Woo
  • Patent number: 10723456
    Abstract: The present invention relates to an unmanned aerial vehicle system having a multi-rotor type rotary wing. The unmanned aerial vehicle system having a multi-rotor type rotary wing includes a first unmanned aerial vehicle, at least one second unmanned aerial vehicle, and a bridge that connects the first unmanned aerial vehicle and the at least one second unmanned aerial vehicle to be separable from each other, wherein the at least one second unmanned aerial vehicle is moveable by the first unmanned aerial vehicle in a state where the at least one second unmanned aerial vehicle is coupled to the first unmanned aerial vehicle by the bridge without being driven, and the at least one second unmanned aerial vehicle is separable from the first unmanned aerial vehicle which is in flight.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: July 28, 2020
    Assignee: Korea Institute of Science and Technology
    Inventors: Taikjin Lee, Suk Woo Nam, Chang Won Yoon, Hyun Seo Park, Young Min Jhon, Seok Lee, Min-Jun Choi
  • Patent number: 10690582
    Abstract: An apparatus for sensing biomolecules includes: a storage in which a solution containing a target material is received; a sensor configured to sense the target material; and a flow controller connected between the storage and the sensor to supply the solution to the sensor, wherein the flow controller controls a solution flow to supply the solution containing the target material and the solution containing no target material in an alternating manner. According to the apparatus for sensing biomolecules, the sensing device always achieves a sensing offset, and consequently, long-term continuous measurement is enabled, leading to the maximized usage efficiency of the sensor, and the value of quantitative measurement can be obtained with high precision.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: June 23, 2020
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jaebin Choi, Chulki Kim, Sang Kyung Kim, Seok Lee, Chaehyun Lim, Jae Hun Kim, Taikjin Lee, Minah Seo
  • Patent number: 10656082
    Abstract: A system for adjusting transmittance, according to the present disclosure, includes a sensing device configured to amplify electromagnetic waves of a specific frequency and a squeegee configured to concentrate a target material inside a slot formed in the sensing device. A transmittance of the sensing device is adjusted according to concentration of the target material concentrated inside the slot by the squeegee.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: May 19, 2020
    Assignee: Korea Institute of Science and Technology
    Inventors: Minah Seo, Yongsang Ryu, Young Min Jhon, Jaehun Kim, Taikjin Lee, Chulki Kim
  • Patent number: 10630045
    Abstract: The present disclosure discloses a double trigger type single pulse laser apparatus configured to suppress additional pulses to increase single pulse energy and improve stability of output as compared to a conventional single trigger type single pulse laser apparatus. According to the present invention, there is provided a single pulse laser apparatus including a resonator which has a first mirror, a second mirror, a gain medium, an electro-optic modulator and an acousto-optic modulator configured to respectively perform Q-switching and mode-locking, the single pulse laser apparatus including a first photodiode configured to measure a laser beam oscillated by the resonator.
    Type: Grant
    Filed: February 20, 2019
    Date of Patent: April 21, 2020
    Assignee: Korea Institute of Science and Technology
    Inventors: Young Min Jhon, Hui Dong Yang, Byunghyuck Moon, Minah Seo, Chulki Kim, Taikjin Lee, Yongsang Ryu, Hyunseok Song, Jaehun Kim
  • Patent number: 10620343
    Abstract: A metamaterial for an electromagnetic wave filter includes a substrate; and a film disposed on the substrate and having a set of slots arranged to form a rotationally symmetric pattern, which is patterned in an intaglio shape, or a set of structures arranged to form a rotationally symmetric pattern, which is patterned in an embossed shape, to control a transmission rate according to polarization of an electromagnetic wave incident on the film. The set of slots or the set of structures have an array angle that is determined such that the transmission rate and a reflectivity thereof have constant values according to the polarization of the electromagnetic wave incident on the film, and have a chloroplast molecular structure pattern in which the set of slots or the set of structures are arranged in pentagonal and hexagonal shapes.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: April 14, 2020
    Assignee: Korea Institute of Science and Technology
    Inventors: Minah Seo, Sanghun Lee, Deokha Woo, Jaehun Kim, Taikjin Lee, Jaebin Choi, Chulki Kim, Joo-Hiuk Son, Young Min Jhon
  • Publication number: 20200033463
    Abstract: The present invention relates to SLAM (simultaneous localization and mapping) method and apparatus robust to a wireless environment change.
    Type: Application
    Filed: December 28, 2017
    Publication date: January 30, 2020
    Applicant: Korea Institute of Science and Technology
    Inventors: Taikjin LEE, Youngmin JHON, Jaehun KIM, Minah SEO, Beomju SHIN
  • Publication number: 20190383922
    Abstract: The present invention relates to integrated localization method and apparatus of high accuracy, and estimates a relative position of a moving node, based on motion sensing of the moving node, estimates an absolute position of the moving node, based on a change pattern of at least one signal strength received from at least one fixed node over a plurality of time points, calculates accuracy of the absolute position of the moving node that changes along a movement route of the moving node, and determines a current position of the moving node from at least one of the relative position and the absolute position estimated as such in accordance with the accuracy of the absolute position of the moving node. Accordingly, it is possible to accurately estimate a position of a moving node using a radio signal which not only accurately estimates the position of the moving node even in a change of wireless environment or various route changes but also has almost no change in signal strength over a wide region.
    Type: Application
    Filed: December 28, 2017
    Publication date: December 19, 2019
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Taikjin LEE, Chulki KIM, Yongsang RYU, Beomju SHIN
  • Publication number: 20190369205
    Abstract: The present invention relates to wireless localization method and apparatus of high accuracy, and measures strength of at least one signal that is transmitted from at least one fixed node, estimates a relative position of a moving node, generates a change pattern of at least one signal strength according to relative changes in positions of the moving node over a plurality of time points from at least one signal strength and the relative position of the moving node, and estimates an absolute position of the moving node, based on a comparison between the change pattern of the at least one signal strength and a map of a distribution pattern shape of signal strength in a region where the moving node is located. Accordingly, it is possible to accurately estimate a position of a moving node using a radio signal which not only accurately estimates the position of the moving node even in a change of wireless environment but also has almost no change in signal strength over a wide region.
    Type: Application
    Filed: December 28, 2017
    Publication date: December 5, 2019
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Taikjin LEE, Youngmin JHON, Jaehun KIM, Boseon YU, Beomju SHIN, Jaewon BANG
  • Publication number: 20190299113
    Abstract: A smart toy platform includes a body including a top part, a bottom part, and a plurality of side parts, a function unit coupled to at least one of the plurality of side parts an application unit arranged in the body and to control an operation of the function unit, a base unit arranged in the body and to provide an application support function to the application unit, and a power supply unit configured to supply electric power to at least one of the function unit, the application unit, or the base unit. The function unit is coupled to the at least one of the plurality of side parts on an inner side or an outer side, across the inner side and the outer side, or an integrate manner.
    Type: Application
    Filed: April 3, 2018
    Publication date: October 3, 2019
    Applicant: CREAMO Inc.
    Inventors: Seok LEE, Taikjin LEE, Hyunduk KIM, Jeong Hun SHIN, Won Kyo JEONG, Soo Jung HUR, Yong-Joon PARK, Deokha WOO
  • Publication number: 20190240590
    Abstract: An assembly unit includes side plate having first coupling member on first side, second coupling member on second side, and third coupling member on each of third and fourth sides, top plate including fourth coupling member and top stud, and bottom plate including fifth coupling member and bottom stud. The first coupling member is engaged with the second coupling member of neighboring side plate. The fourth coupling member is engaged with the third coupling member. The fifth coupling member is engaged with the third coupling member. The first coupling member includes protrusion. The second coupling member includes groove. The protrusion is fitted into the groove of the neighboring side plate. The third coupling member includes thread. Each of the fourth and fifth coupling members includes thread. The fourth and fifth coupling members are engaged with the third coupling member in a screwed manner using the threads.
    Type: Application
    Filed: October 4, 2018
    Publication date: August 8, 2019
    Inventors: Seok LEE, Taikjin Lee, Jeong Hun Shin, Won Kyo JEONG, Sun Ho KIM, Hyunsoo CHUNG, Hyunduk Kim, Yong-Joon PARK, Deokha WOO
  • Publication number: 20190204215
    Abstract: A system for adjusting transmittance, according to the present disclosure, includes a sensing device configured to amplify electromagnetic waves of a specific frequency and a squeegee configured to concentrate a target material inside a slot formed in the sensing device. A transmittance of the sensing device is adjusted according to concentration of the target material concentrated inside the slot by the squeegee.
    Type: Application
    Filed: December 28, 2018
    Publication date: July 4, 2019
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Minah SEO, Yongsang RYU, Young Min JHON, Jaehun KIM, Taikjin LEE, Chulki KIM
  • Patent number: 10188961
    Abstract: An assembly unit includes a side plate having a plate shape and including a first coupling member on first side, a second coupling member on second side, and a third coupling member on each of third side and fourth side, a top plate having a plate shape and including a fourth coupling member on each side and a top stud on the top surface, and a bottom plate having a plate shape and including a fifth coupling member on each side and a bottom stud on the bottom surface. The first coupling member includes a protrusion. The second coupling member includes a groove. When the first coupling member of the side plate is engaged with the second coupling member of a neighboring side plate of the same type as the side plate, the protrusion of the side plate is fitted into the groove of the neighboring side plate.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: January 29, 2019
    Assignee: CREAMO INC.
    Inventors: Seok Lee, Taikjin Lee, Jeong Hun Shin, Won Kyo Jeong, Sun Ho Kim, Hyunsoo Chung, Hyunduk Kim, Yong-Joon Park, Deokha Woo
  • Patent number: 10170884
    Abstract: Disclosed herein is a single pulse laser apparatus which includes a first mirror and a second mirror disposed at both ends of the single pulse laser apparatus and having reflectivities of a predetermined level or more; a gain medium rotated at a predetermined angle and configured to oscillate a laser beam in a manual mode-locking state; a linear polarizer configured to output a beam having a specific polarized component of the oscillated laser beam; an etalon configured to adjust a pulse width of the oscillated laser beam; and an electro-optic modulator configured to perform Q-switching and single pulse switching.
    Type: Grant
    Filed: April 19, 2018
    Date of Patent: January 1, 2019
    Assignee: Korea Institute of Science and Technology
    Inventors: Young Min Jhon, Byunghyuck Moon, Young In John, Minah Seo, Jaehun Kim, Yongsang Ryu, Taikjin Lee, Seok Lee
  • Publication number: 20180309260
    Abstract: Disclosed herein is a single pulse laser apparatus which includes a first mirror and a second mirror disposed at both ends of the single pulse laser apparatus and having reflectivities of a predetermined level or more; a gain medium rotated at a predetermined angle and configured to oscillate a laser beam in a manual mode-locking state; a linear polarizer configured to output a beam having a specific polarized component of the oscillated laser beam; an etalon configured to adjust a pulse width of the oscillated laser beam; and an electro-optic modulator configured to perform Q-switching and single pulse switching.
    Type: Application
    Filed: April 19, 2018
    Publication date: October 25, 2018
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Young Min JHON, Byunghyuck MOON, Young In JOHN, Minah SEO, Jaehun KIM, Yongsang RYU, Taikjin LEE, Seok LEE