Patents by Inventor In Seong Ju

In Seong Ju 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).

  • METHOD FOR FABRICATING TRANSFER PRINTING SUBSTRATE USING CONCAVE-CONVEX STRUCTURE, TRANSFER PRINTING SUBSTRATE FABRICATED THEREBY AND APPLICATION THEREOF
    Publication number: 20150174940
    Abstract: The present disclosure provides a method for fabricating a substrate for transfer printing using a concave-convex structure and a substrate for transfer printing fabricated thereby. The method includes preparing a handling substrate having a concave-convex structure formed thereon; forming a sacrificial layer along the concave-convex structure on the handling substrate; coating a polymer on the handling substrate having the sacrificial layer formed thereon to form a polymer substrate having bumps filling a concave portion of the concave-convex structure; and removing the sacrificial layer from the handling to substrate. The substrate for transfer printing includes a handling substrate having a concave-convex structure formed thereon; and a polymer substrate placed on the concave-convex structure and having bumps filling a concave portion of the concave-convex structure of the handling substrate.
    Type: Application
    Filed: March 10, 2015
    Publication date: June 25, 2015
    Inventors: Heung Cho KO, Seok Ho KIM, Jongwon YOON, Young Kyu HWANG, Su Ok YUN, Hun Soo JANG, Seong-Ju PARK, Hyun-A CHO, Byeong-Il NOH, Jaeyi CHUN
  • Wheel assembly of mobile robot
    Patent number: 9033079
    Abstract: The present invention relates to a mobile robot, in which a wheel is mounted on a robot body in an elevatable structure.
    Type: Grant
    Filed: July 9, 2012
    Date of Patent: May 19, 2015
    Assignee: Yujin Robot Co., Ltd.
    Inventors: Kyung Chul Shin, Seong Ju Park, No Soo Lee
  • ZnO film structure and method of forming the same
    Patent number: 9018626
    Abstract: Disclosed herein are a ZnO film structure and a method of forming the same. Dislocation density of a ZnO film grown through epitaxial lateral overgrowth (ELOG) is minimized. In order to block a chemical reaction between the ZnO film and a mask layer at the time of performing the ELOG, a material of the mask layer is AlF3, NaF2, SrF, or MgF2. Therefore, the chemical reaction between ZnO and the mask layer is blocked and a transfer of dislocation from a substrate is also blocked.
    Type: Grant
    Filed: December 26, 2013
    Date of Patent: April 28, 2015
    Assignee: Gwangju Institute of Science and Technology
    Inventors: Seong-Ju Park, Yong Seok Choi, Jang-Won Kang, Byeong Hyeok Kim
  • Method and apparatus of supporting wireless femtocell clusters
    Patent number: 9019942
    Abstract: A method of operating a femtocell network cluster is disclosed. One example method of operating the femtocell network cluster may include certain operations, such as, selecting a master femtocell access point among various femtocell access points operating on the femtocell network cluster and updating a master table to include the master femtocell access point in the master table neighbor list. Other operations may include transmitting the master table to each of the femtocell access points informing them of the identity of the master femtocell access point. The tables may be maintained by all of the femtocell access points operating on the network.
    Type: Grant
    Filed: January 25, 2011
    Date of Patent: April 28, 2015
    Assignee: Ubeeairwalk
    Inventors: Christopher Martin Edward Osborn, Seong Ju Seo, Kyungsik Choi
  • Method for fabricating transfer printing substrate using concave-convex structure, transfer printing substrate fabricated thereby and application thereof
    Patent number: 9005709
    Abstract: A method for fabricating a substrate for transfer printing using a concave-convex structure and a substrate for transfer printing fabricated thereby. The method includes preparing a handling substrate having a concave-convex structure formed thereon; forming a sacrificial layer along the concave-convex structure on the handling substrate; coating a polymer on the handling substrate having the sacrificial layer formed thereon to form a polymer substrate having bumps filling a concave portion of the concave-convex structure; and removing the sacrificial layer from the handling substrate. The substrate includes a handling substrate having a concave-convex structure formed thereon; and a polymer substrate placed on the concave-convex structure and having bumps filling a concave portion of the concave-convex structure of the handling substrate.
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: April 14, 2015
    Assignee: Gwangju Institute of Science and Technology
    Inventors: Heung Cho Ko, Seok Ho Kim, Jongwon Yoon, Young Kyu Hwang, Su Ok Yun, Hun Soo Jang, Seong-Ju Park, Hyun-A Cho, Byeong-Il Noh, Jaeyi Chun
  • LIGHT EMITTING DIODE HAVING MAGNETIC STRUCTURE AND METHOD OF FABRICATING THE SAME
    Publication number: 20150097205
    Abstract: A light emitting diode including a magnetic structure and a method of fabricating the same are disclosed. The magnetic structure composed of passivation layers and a magnetic layer is disposed inside a luminous structure composed of an active layer and a semiconductor layer. In the light emitting diode, the magnetic structure including the magnetic layer is disposed on a side surface of the active layer to improve recombination rate of charge carriers for light emission by increasing influence of a magnetic field applied to the active layer. In addition, the light emitting diode according to the present invention allows change in position of the magnetic structure including the magnetic layer depending upon an etched shape of the luminous structure, thereby realizing various magnetic field distributions.
    Type: Application
    Filed: October 6, 2014
    Publication date: April 9, 2015
    Inventors: Seong-Ju PARK, Youngchul LEEM, Jae-Joon KIM
  • High manganese steel strips with excellent coatability and superior surface property, coated steel strips using steel strips and method for manufacturing the steel strips
    Patent number: 8999085
    Abstract: A high-ductility, high-strength and high Mn steel strip used for steel strips of automobiles requiring superior formability and high strength, a plated steel strip produced by using the same, and a manufacturing method thereof are disclosed. The high Mn steel strip comprises, by weight %, 0.2˜1.5% of C, 10˜25% of Mn, 0.01˜3.0% of Al, 0.005˜2.0% of Si, 0.03% or less of P, 0.03% or less of S, 0.040% or less of N, and the balance of Fe and other unavoidable impurities. The high-ductility, high-strength and high Mn steel strip, and the plated steel strip produced by using the same have superior surface properties and plating characteristics.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: April 7, 2015
    Assignee: Posco
    Inventors: Seong-Ju Kim, Kwang-Geun Chin, Hyun-Gyu Hwang, Sung-Kyu Kim, Il-Ryoung Sohn, Young-Kook Lee, Oh-Yeon Lee
  • LIGHT EMITTING DIODE
    Publication number: 20150091036
    Abstract: Disclosed herein is a light emitting diode. The light emitting diode includes a substrate, an n-type semiconductor layer placed on the substrate, an active layer placed on the n-type semiconductor layer, a p-type semiconductor layer placed on the active layer, a reflective layer placed on the p-type semiconductor layer, an n-type electrode electrically connected to the n-type semiconductor layer, a p-type electrode placed on the reflective layer; and a first patterned magnetic structure placed on the reflective layer, and separated from the p-type electrode. The light emitting diode can provide improved internal quantum efficiency using the patterned magnetic structure.
    Type: Application
    Filed: September 30, 2014
    Publication date: April 2, 2015
    Inventors: Seong-Ju PARK, Jae-Joon KIM, Youngchul LEEM
  • ZnO FILM STRUCTURE AND METHOD OF FORMING THE SAME
    Publication number: 20140361288
    Abstract: Disclosed herein are a ZnO film structure and a method of forming the same. Dislocation density of a ZnO film grown through epitaxial lateral overgrowth (ELOG) is minimized. In order to block a chemical reaction between the ZnO film and a mask layer at the time of performing the ELOG, a material of the mask layer is AlF3, NaF2, SrF, or MgF2. Therefore, the chemical reaction between ZnO and the mask layer is blocked and a transfer of dislocation from a substrate is also blocked.
    Type: Application
    Filed: December 26, 2013
    Publication date: December 11, 2014
    Applicant: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Seong-Ju PARK, Yong Seok CHOI, Jang-Won KANG, Byeong Hyeok KIM
  • SEMICONDUCTOR LIGHT EMITTING DEVICE
    Publication number: 20140346437
    Abstract: A semiconductor light emitting device is provided including a first conductivity-type semiconductor layer, an active layer including at least one quantum barrier layer made of InxGa(1-x)N, wherein 0?x<y, and at least one quantum well layer made of InyGa(1-y)N, wherein 0<y?1, disposed therein, and a second conductivity-type semiconductor layer, wherein the quantum barrier layer includes first and second graded layers disposed in order toward the first conductivity-type semiconductor layer. The first graded layer contains indium whose content increases in a direction towards the second conductivity-type semiconductor layer, and the second graded layer contains indium whose content decreased in a direction toward the second conductivity-type semiconductor layer.
    Type: Application
    Filed: April 17, 2014
    Publication date: November 27, 2014
    Applicants: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY, SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Eun Deok SIM, Sang Jo KIM, Sung Tae KIM, Young Sun KIM, Seong Ju PARK, Suk Ho YOON, Sang Jun LEE
  • SEPARATE BILLING SYSTEM FOR BYOD SERVICE AND SEPARATE BILLING METHOD FOR DATA SERVICE
    Publication number: 20140341083
    Abstract: A separate billing system for BYOD service includes a business service server configured to provide a business service, a terminal configured to request a business service from the business service server, a billing policy server configured to store billing policy information, a BYOD service gateway configured to control the terminal to transmit and receive data with the business service server via an access device, and generate billing data according to the transmission and reception, and a separate billing server configured to analyze the billing data based on the billing policy information, and generate separate billing information.
    Type: Application
    Filed: May 14, 2014
    Publication date: November 20, 2014
    Applicant: nTels Co., Ltd.
    Inventors: Jae Hee SHIM, Chong Wook KWON, Seong Ju KIM, Yae Ho KIM
  • APPARATUS AND METHOD FOR MEASURING BENDING AND TOUCH USING OPTICAL WAVEGUIDE
    Publication number: 20140334767
    Abstract: An apparatus and method for measuring bending of an object, a position of an item touching the object, and a shearing force of the item using an optical waveguide may include a frequency measurer to measure a frequency of light reflected from a grating of an optical waveguide, and a bending measurer to determine bending of an object to which the optical waveguide is attached using the frequency.
    Type: Application
    Filed: March 6, 2014
    Publication date: November 13, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Soo Chul LIM, Joon Ah PARK, Hyun Jeong LEE, Seong Ju HAN, Kyung Won MOON
  • NITRIDE SEMICONDUCTOR LIGHT EMITTING DEVICE
    Publication number: 20140319454
    Abstract: The present invention discloses a nitride semiconductor light emitting device with improved light efficiency. The nitride semiconductor light emitting device includes a n-type nitride layer and p-type nitride layer, an active layer disposed between the n-type and p-type nitride layers and with a multiple quantum well structure wherein a plurality of quantum well layers and a plurality of quantum barrier layers are stacked alternatively in the active layer, and a superlattice layer between the active layer and the p-type nitride layer with asymmetric structure. Herein, a thickness of a well layers gradually increases from the p-type nitride layer to the active layer and the height of the barrier layers gradually increases from the active layer to the p-type nitride layer and therefore, an injection efficiency of a hole supplied from p-type nitride layer to an active layer is increased.
    Type: Application
    Filed: March 26, 2014
    Publication date: October 30, 2014
    Applicant: INTELLECTUAL DISCOVERY CO., LTD.
    Inventors: Seong-Ju PARK, Sang-Jun LEE, Sang-Hyun HONG, Sang-Jo KIM
  • Slip detection apparatus and method for a mobile robot
    Patent number: 8873832
    Abstract: The present invention relates to a slip detection apparatus and method for a mobile robot, and more particularly, to a slip detection apparatus and method for a mobile robot, which not only use a plurality of rotation detection sensors to detect a lateral slip angle and lateral slip direction, but also analyze the amount of change in an image and detect the blocked degree of an image input unit to determine the quality of an input image, and detect the occurrence of a frontal slip to precisely detect the type of slip, direction of the slip, and the rotation angle, and, on the basis of the latter, to enable the mobile robot to move away from and avoid slip regions, and to reassume the precise position thereof.
    Type: Grant
    Filed: October 30, 2009
    Date of Patent: October 28, 2014
    Assignee: Yujin Robot Co., Ltd.
    Inventors: Kyung Chul Shin, Seong Ju Park, Hee Kong Lee, Jae Young Lee, Hyung O Kim, James Stonier Daniel
  • COMBINED BASE TRANSCEIVER STATION AND BASE STATION CONTROLLER
    Publication number: 20140302861
    Abstract: A combined base station controller (12) and base transceiver station (14) comprises a selector distribution unit (SDU, 20), a main call control (MCC, 22) coupled to the SDU, a radio call control (RCC, 18) coupled to the MCC, and a channel element control (CEC, 16) coupled to the RCC.
    Type: Application
    Filed: October 7, 2013
    Publication date: October 9, 2014
    Applicant: UBEEAIRWALK, INC.
    Inventors: Wonjun Cho, Joem Sik Kim, Myoung Chul Choi, Hyunyung Cha, Jefferson K. Kim, Hyeon Bong Park, Jae Hong Park, Seong Ju Seo, Jae Kyu Yoo, Jake J. Han
  • Map generating and updating method for mobile robot position recognition
    Patent number: 8849036
    Abstract: The present invention relates to a map generating and updating method for mobile robot position recognition, and more specifically relates to a map generating and updating method for mobile robot position recognition, whereby position recognition error can be minimized by registering landmarks extracted during map generation and landmarks extracted on the basis of the probable error in inferred landmarks, calculating the accuracy of landmarks pre-registered during map generation, and adjusting the level of landmarks of low accuracy or removing landmarks which have been registered erroneously.
    Type: Grant
    Filed: October 30, 2009
    Date of Patent: September 30, 2014
    Assignee: Yujin Robot Co., Ltd.
    Inventors: Kyung Chul Shin, Seong Ju Park, Hee Kong Lee, Jae Young Lee, Hyung O Kim, James Stonier Daniel
  • Light emitting diode having metal nanoparticle layered graphene
    Patent number: 8779411
    Abstract: The present disclosure provides a light emitting diode and a method of manufacturing the same. The light emitting diode includes a graphene layer on a second conductive semiconductor layer and a plurality of metal nanoparticles formed on some region of the graphene layer, whereby adhesion between the second conductive semiconductor layer comprised of an inorganic material and the graphene layer is enhanced, thereby securing stability and reliability of the light emitting diode. In addition, the light emitting diode allows uniform spreading of electric current, thereby allowing stable emission of light through a surface area of the light emitting diode.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: July 15, 2014
    Assignee: Gwanju Institute of Science and Technology
    Inventors: Dong Seon Lee, Jae Phil Shim, Seong Ju Park, Min Hyeok Choe, Do Hyung Kim, Tak Hee Lee
  • SEMICONDUCTOR LIGHT-EMITTING DEVICE
    Publication number: 20140191192
    Abstract: There is provided a semiconductor light emitting device having improved light emitting efficiency by increasing an inflow of holes into an active layer while preventing an overflow of electrons. The semiconductor light emitting device includes an n-type semiconductor layer; an active layer formed on the n-type semiconductor layer and including at least one quantum well layer and at least one quantum barrier layer alternately stacked therein; an electron blocking layer formed on the active layer and having at least one multilayer structure including three layers having different energy band gaps stacked therein, a layer adjacent to the active layer among the three layers having an inclined energy band structure; and a p-type semiconductor layer formed on the electron blocking layer.
    Type: Application
    Filed: July 29, 2011
    Publication date: July 10, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang Heon Han, Hyun Wook Shim, Je Won Kim, Chu Young Cho, Seong Ju Park, Sung Tae Kim, Jin Tae Kim, Yong Chun Kim, Sang Jun Lee
  • Method of forming p-type ZnO film
    Patent number: 8772150
    Abstract: Disclosed herein is a method of forming a p-type zinc oxide thin film. A zinc oxide layer and an antimony oxide layer are alternately stacked one above another on a substrate, forming a superlattice layer. The superlattice layer is modified into a p-type zinc oxide thin film by annealing. Upon annealing, zinc atoms of the zinc oxide layer are diffused into the antimony oxide layer and antimony atoms of the antimony oxide layer are diffused into the zinc oxide layer.
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: July 8, 2014
    Assignee: Gwangju Institute of Science and Technology
    Inventors: Seong Ju Park, Yong Seok Choi, Jang Won Kang
  • Control method for localization and navigation of mobile robot and mobile robot using the same
    Patent number: 8744665
    Abstract: The present invention relates to a control method for the localization and navigation of a mobile robot and a mobile robot using the same. More specifically, the localization and navigation of a mobile robot are controlled using inertial sensors and images, wherein local direction descriptors are employed, the mobile robot is changed in the driving mode thereof according to the conditions of the mobile robot, and errors in localization may be minimized.
    Type: Grant
    Filed: July 28, 2009
    Date of Patent: June 3, 2014
    Assignee: Yujin Robot Co., Ltd.
    Inventors: Kyung Chul Shin, Seong Ju Park, Hee Kong Lee, Jae Young Lee, Hyung O Kim