Patents by Inventor Ju-hyung An

Ju-hyung An 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).

  • Patent number: 10566475
    Abstract: The present invention relates to a photoelectric element and a method for manufacturing the same, and the photoelectric element according to the present invention includes: a semiconductor substrate; and transparent conductor pattern portions formed on a surface of the semiconductor substrate to be connected to each other with a specific cycle such that incident light is concentrated in a specific area of the semiconductor substrate.
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: February 18, 2020
    Assignee: Icheon University Industry Academic Cooperation Foundation
    Inventors: Joondong Kim, Ju-Hyung Yun
  • Patent number: 10478275
    Abstract: A medical diagnostic apparatus having a height-adjustable table for animals according to an embodiment of the present invention includes: a table where an animal is placed; a support stand supporting the table such that the table vertically moves and adjusting height of the table to move the table close to a floor; an X-ray detector disposed under the table and coupled to the support stand to move with the table; and an imaging stand spaced from the table, connected to the support stand, and having an X-ray tube for radiating X-rays to the X-ray detector.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: November 19, 2019
    Inventor: Ju-Hyung Kim
  • Patent number: 10418514
    Abstract: Exemplary embodiments of the present invention disclose a light emitting diode including an n-type contact layer doped with silicon, a p-type contact layer, an active region disposed between the n-type contact layer and the p-type contact layer, a superlattice layer disposed between the n-type contact layer and the active region, the superlattice layer including a plurality of layers, an undoped intermediate layer disposed between the superlattice layer and the n-type contact layer, and an electron reinforcing layer disposed between the undoped intermediate layer and the superlattice layer. Only a final layer of the superlattice layer closest to the active region is doped with silicon, and the silicon doping concentration of the final layer is higher than that of the n-type contact layer.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: September 17, 2019
    Assignee: SEOUL VIOSYS CO., LTD.
    Inventors: Kwang Joong Kim, Chang Suk Han, Kyung Hee Ye, Seung Kyu Choi, Ki Bum Nam, Nam Yoon Kim, Kyung Hae Kim, Ju Hyung Yoon
  • Publication number: 20190260091
    Abstract: Provided are an electrode capable of preventing separation of a short-circuit prevention layer since the short-circuit prevention layer, which is made of a heat-resistant polymer fiber, can be attached with high binding force when formed on the surface of the electrode, in the case that an active material layer includes a predetermined amount of polyvinylidene fluoride (PVdF) as a binder; a secondary battery using the same; and a method of manufacturing the electrode. The electrode includes: an electrode current collector; an active material layer formed on the electrode current collector; and a short-circuit prevention layer formed on the active material layer, wherein the short-circuit prevention layer includes a porous polymer fiber web having a plurality of pores through accumulation of ultrafine fibers of a heat-resistant polymer material, and the active material layer includes PVdF as a binder.
    Type: Application
    Filed: September 19, 2017
    Publication date: August 22, 2019
    Applicant: AMOGREENTECH CO., LTD.
    Inventors: Seung Yun RHO, In Yong SEO, Ju Hyung KIM, Su Yeon LEE, Seung Gon PARK, Dong Woo KIM
  • Patent number: 10323452
    Abstract: Technologies are generally described for activation of actuators based on sensed user characteristics, such as orientation. In some examples, an access control system may be configured to activate an actuator upon determining that an activation device is both in proximity to and has a similar orientation to the actuator. The access control system may be configured to determine orientation similarity by determining an orientation associated with the activation device, determining an orientation associated with the actuator, and comparing a difference between the two orientations to an activation threshold. The actuator may be associated with an entryway such as a building doorway, a room doorway, or a vehicle door, or may be associated with a container such as a safe or vehicle trunk.
    Type: Grant
    Filed: July 25, 2016
    Date of Patent: June 18, 2019
    Assignee: Empire Technology Development LLC
    Inventors: Jin Sam Kwak, Geonjung Ko, Min Seok Noh, Hyun Oh Oh, Ju Hyung Son
  • Patent number: 10295649
    Abstract: Technologies are generally described for identifying whether a propagation path between a mobile device and an access point is line-of-sight. In some examples, a method performed under control of a mobile device may include receiving, from an access point, a first signal transmitted at a first frequency band; receiving, from the access point, a second signal transmitted at a second frequency band; measuring a difference value between propagation properties of the first signal and the second signal; and identifying whether a propagation path between the mobile device and the access point is line-of-sight or non-line-of-sight based at least in part on the difference value.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: May 21, 2019
    Assignee: Empire Technology Development LLC
    Inventors: Jin Sam Kwak, Hyun Oh Oh, Ju Hyung Son
  • Patent number: 10252706
    Abstract: A master cylinder includes: a cylinder housing; a piston which is movably disposed in the cylinder housing so as to form a pressure chamber and a hydraulic fluid supplying chamber; and a sealing member which is interposed between the cylinder housing and the piston. An indentation portion is provided on an outer circumferential surface of the piston, wherein a rear wall of the indentation portion is formed as a slanted surface. A plurality of first communication holes are formed on a bottom surface of the indentation portion and a second communication hole is formed on the rear wall of the indentation portion.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: April 9, 2019
    Assignee: ERAE AMS CO., LTD.
    Inventors: Ju-Hyung Jo, Dong-Hyun Lee
  • Patent number: 10234931
    Abstract: Technologies are generally described for selectively charging a capacitor coupled to a memory. Example electronic devices described herein may include a memory; a capacitor coupled to the memory; a power supply configured to supply power at least to the capacitor; a switch coupled between the power supply and the capacitor; and a switch controller coupled to the switch and configured to: determine whether the electronic device is in a safety mode or in a normal mode, and control an operation of the switch, based on the determination. So, the supply of the power from the power supply to the capacitor is selectively controlled.
    Type: Grant
    Filed: May 5, 2014
    Date of Patent: March 19, 2019
    Assignee: Empire Technology Development LLC
    Inventors: Hyun Oh Oh, Jin Sam Kwak, Ju Hyung Son
  • Patent number: 10215817
    Abstract: An RF coil has an improved structure to prevent an excessive heat from being transferred to an object, and a magnetic resonance imaging apparatus includes the same. The MRI apparatus includes an RF coil configured to receive an RF signal, wherein the RF coil may include a first cover configured to allow thermal insulation material to be injected into the inside thereof, a second cover configured to allow thermal insulation material to be injected into the inside thereof and detachably coupled to the first cover to form an inner space with the first cover, and at least one circuit board disposed in the inner space and on which a circuit element configured to receive the RF signal is mounted.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: February 26, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyung Moo Choi, Hae-Gweon Park, Ju Hyung Lee
  • Patent number: 10206129
    Abstract: Technologies generally described herein relate to connection of a mobile device to a base station in a wireless communication system. Example mobile devices may include a receiver, a data communication module, a switch module, and a signal consolidator. The receiver may be configured to receive, from a base station through a cellular band, a first control signal including control information regarding the base station. The data communication module may be configured to communicate with the base station through a non-cellular band. The switch module may be coupled to the receiver and to the data communication module, and configured to determine that a power level of the first control signal is higher than a first threshold value and activate the data communication module in response to the determination. The data communication module may be further configured to receive a second control signal including the control information from the base station through the non-cellular band.
    Type: Grant
    Filed: September 16, 2014
    Date of Patent: February 12, 2019
    Assignee: Empire Technology Development LLC
    Inventors: Jin Sam Kwak, Hyun Oh Oh, Ju Hyung Son
  • Patent number: 10201108
    Abstract: The present disclosure relates to an electronic control apparatus for a vehicle, and the electronic control apparatus of the present disclosure includes: an electronic control element which includes a printed circuit board (PCB) and electronic components installed on a surface of the PCB; a cover and a base which accommodate the electronic control element; and a connector which is coupled to the electronic control element, wherein a front end portion having a protrusion is formed at an edge of the cover so that the PCB is inserted and mounted between the protrusion of the cover and an edge of the base, a projection portion is formed at a rear end portion of the edge of the base where the cover and the base come into contact with each other, and the cover and the projection portion of the base come into contact with each other so as to form a predetermined space between the front end portion and the rear end portion so that a sealing member is inserted into the predetermined space.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: February 5, 2019
    Assignee: Hyundai Autron Co., Ltd.
    Inventors: Jun Ho Lee, Hyung Joon Moon, Seung Mok Song, Ju Hyung Lee, Sun Jae Yang
  • Patent number: 10196092
    Abstract: The present invention is a structure for fixing a roof module of a vehicle, which is improved to insert and fix a polymer panel for a joining between a vehicle body structure as a steel structure and a component made of a material other than steel. The present invention provides a structure for fixing a roof module of a vehicle, comprising: a roof rail of a vehicle; a roof panel made of a material different from that of the roof rail, which is fixed at the roof rail; a polymer member coupled between the roof rail and the roof panel; and a joint member which joins the roof rail, the roof panel, and the polymer member.
    Type: Grant
    Filed: December 24, 2013
    Date of Patent: February 5, 2019
    Assignee: POSCO
    Inventors: Min-Hong Seo, Mok-Young Lee, Kanghwan Ahn, Ju-Hyung Kim
  • Patent number: 10134606
    Abstract: A method of forming patterns may use an organic reflection-preventing film including a polymer having an acid-liable group. A photoresist film is formed on the organic reflection-preventing film. A first area selected from the photoresist film is exposed to generate an acid in the first area. Hydrophilicity of a first surface of the organic reflection-preventing film facing the first area of the photoresist film may be increased. The photoresist film including the exposed first area is developed to remove a non-exposed area of the photoresist film. The organic reflection-preventing film and a target layer are anisotropically etched by using the first area of the photoresist film as an etch mask.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: November 20, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang-yoon Woo, Hyun-woo Kim, Ju-hyung An, Jin-young Yoon
  • Patent number: 10104497
    Abstract: Technologies are generally described for detecting proximity of a client device to a base station in a wireless communication system. Example base station may include a proximity detector and an operation mode controller. The proximity detector may analyze a property of a signal transmitted by a client device to detect an envelope of the signal including a buzz-type waveform. If the envelope of the signal is determined to include a buzz-type waveform, the client device is determined to be within communication range of the base station. Further, the operation mode controller may convert a current operation mode of the base station to a particular operation mode that enables the base station to support communication by the client device. In some embodiments, the buzz-type waveform may be a waveform of an uplink control signal that is transmitted by the client device when it is not actively engaged in communication.
    Type: Grant
    Filed: March 25, 2014
    Date of Patent: October 16, 2018
    Assignee: Empire Technology Development LLC
    Inventors: Jin Sam Kwak, Hyun Oh Oh, Ju Hyung Son
  • Publication number: 20180233648
    Abstract: The present invention relates to a flexible thermoelectric element and a production method therefor, the flexible thermoelectric element comprising: a thermoelectric material column array including one or more N-type thermoelectric material and one or more P-type thermoelectric material which are spaced apart from each other; an electrode configured to electrically connect the thermoelectric materials of the thermoelectric material column array; and a foam configured to fill in at least a void of the thermoelectric material column array.
    Type: Application
    Filed: October 26, 2016
    Publication date: August 16, 2018
    Inventors: Byung Jin CHO, Sun Jin KIM, Ji Seon SHIN, Sehwan YIM, Hyeong Do CHOI, Yongjun KIM, Choong Sun KIM, Ju Hyung WE
  • Publication number: 20180224522
    Abstract: Technologies are generally described for identifying whether a propagation path between a mobile device and an access point is line-of-sight. In some examples, a method performed under control of a mobile device may include receiving, from an access point, a first signal transmitted at a first frequency band; receiving, from the access point, a second signal transmitted at a second frequency band; measuring a difference value between propagation properties of the first signal and the second signal; and identifying whether a propagation path between the mobile device and the access point is line-of-sight or non-line-of-sight based at least in part on the difference value.
    Type: Application
    Filed: April 6, 2018
    Publication date: August 9, 2018
    Inventors: Jin Sam Kwak, Hyun Oh Oh, Ju Hyung Son
  • Patent number: 10037612
    Abstract: Technologies are generally described for phase measuring profilometry (PMP) using structured light patterns based on orthogonal frequency division multiplexing (OFDM). In some examples, a composite structured light pattern generated using OFDM may be used to illuminate a surface of interest. The surface may reflect a phase-distorted version of the structured light pattern, and the phase-distorted structured light pattern may be processed to recover image and/or height information about the surface. In some embodiments, fast Fourier transform schemes may be used to generate the composite structured light pattern and process the phase-distorted structured light pattern.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: July 31, 2018
    Assignee: EMPIRE TECHNOLOGY DEVELOPMENT LLC
    Inventors: Jin Sam Kwak, Geonjung Ko, Hyun Oh Oh, Ju Hyung Son
  • Publication number: 20180203302
    Abstract: A quantum dot sheet having a fibrous-web structure, including a quantum dot layer having a three-dimensional network structure formed by an aggregate of nanofibers. The nanofibers include quantum dots.
    Type: Application
    Filed: July 12, 2016
    Publication date: July 19, 2018
    Applicant: AMOGREENTECH CO., LTD.
    Inventor: Ju Hyung KIM
  • Patent number: 9996601
    Abstract: Technologies are generally described for a data synchronization scheme. In some examples, a method performed under control of a client device may include connecting to a server based at least in part on user account login information; receiving, from the server, a data file stored in connection with the user account; storing the received data file in a local data storage; receiving a request to logout the client device; determining that the client device is disconnected from the server and/or that the data file stored on the local data storage is not synchronized with the data file stored in connection with the user account; and encrypting the data file stored on the local data storage.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: June 12, 2018
    Assignee: EMPIRE TECHNOLOGY DEVELOPMENT LLC
    Inventors: Hyun-Oh Oh, Ju-Hyung Son, Jin-Sam Kwak
  • Publication number: 20180140408
    Abstract: A medical diagnostic apparatus having a height-adjustable table for animals according to an embodiment of the present invention includes: a table where an animal is placed; a support stand supporting the table such that the table vertically moves and adjusting height of the table to move the table close to a floor; an X-ray detector disposed under the table and coupled to the support stand to move with the table; and an imaging stand spaced from the table, connected to the support stand, and having an X-ray tube for radiating X-rays to the X-ray detector.
    Type: Application
    Filed: June 29, 2017
    Publication date: May 24, 2018
    Inventor: Ju-Hyung KIM