Patents by Inventor Yoon-Sun Lee

Yoon-Sun 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).

  • Patent number: 10403698
    Abstract: A flexible display device includes a substrate, a light emitting layer, a first insulating layer, and a conductive layer. The substrate includes a bent region and a non-bent region. The light emitting layer overlaps the non-bent region. The first insulating layer is disposed on the substrate. The conductive layer is disposed on the first insulating layer. A sidewall of the first insulating layer includes a first tapered surface. The first tapered surface includes at least three curved surface portions continuously arranged with one another.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: September 3, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ki Hyun Cho, Yong Jae Park, Sang Jo Lee, Won Suk Choi, Yoon Sun Choi
  • Patent number: 10367050
    Abstract: A display device includes a display panel includes a display area in which an image is displayed and a first non-display area in which a pad portion is located. The display panel includes a first bending portion in the display area, the first bending portion being bent at a first curvature radius, and a second bending portion in the first non-display area, the second bending portion being bent at a second curvature radius that is smaller than the first curvature radius.
    Type: Grant
    Filed: January 30, 2017
    Date of Patent: July 30, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yoon Sun Choi, Sang Jo Lee, Yong Jae Park, Mi Jin Yoon
  • Publication number: 20190218517
    Abstract: Disclosed is a method for culturing mesenchymal stem cells, comprising culturing mesenchymal stem cells in a medium containing calcium in a concentration of from 2.1 to 3.8 mM and magnesium in a concentration of from 1.0 to 3.0 mM under a hypoxic condition of 2 to 5% oxygen. The culturing method can increase the population of mesenchymal stem cells even with a small number of passages by improving mesenchymal stem cells in proliferative capacity and viability. In addition, the mesenchymal stem cells prepared by the culturing method are effectively used to treat or improve a pulmonary disease.
    Type: Application
    Filed: March 29, 2019
    Publication date: July 18, 2019
    Applicant: MEDIPOST CO., LTD.
    Inventors: Yoon-Sun Yang, Won II Oh, Sun Jae Kwon, Mi Yeon Lee, Hong Bae Jeon
  • Publication number: 20190175601
    Abstract: Provided is a composition for inhibiting or alleviating itching, which includes riboflavin or riboflavin analog. The riboflavin or riboflavin analog are very effective in inhibiting or alleviating itching, scalp itching, or allergic itching by inhibiting itching information transmission through blocking of a current generated by histamine, which is a major factor of itching.
    Type: Application
    Filed: February 18, 2019
    Publication date: June 13, 2019
    Inventors: Sung Jun JUNG, Yoon Hee KANG, Pyung-sun CHO, Han Kyu LEE
  • Patent number: 10318802
    Abstract: The present disclosure relates to a worn banknote identification method and an ATM (Automated Teller Machine) using the same, and more particularly, to a worn banknote identification method which acquires an image of a banknote inserted into an ATM, divides pixels of the acquired banknote image into a bright region and dark region depending on a brightness distribution of the banknote image, determines the wear level of the banknote by comparing a difference between the average brightness values of the two regions to a preset reference value, and separately stores the inserted banknote into a reject box depending on the wear level of the banknote, and an ATM using the same.
    Type: Grant
    Filed: July 24, 2017
    Date of Patent: June 11, 2019
    Assignees: HYOSUNG TNS INC., INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY
    Inventors: Eui Sun Choi, Yoon Kill Baek, Sang Wook Baek, Sang Hun Lee, Chul Hee Lee
  • Patent number: 10304890
    Abstract: Various aspects of the present disclosure provide a semiconductor device, for example comprising a finger print sensor, and a method for manufacturing thereof. Various aspects of the present disclosure may, for example, provide an ultra-slim finger print sensor having a thickness of 500 ?m or less that does not include a separate printed circuit board (PCB), and a method for manufacturing thereof.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: May 28, 2019
    Assignee: Amkor Technology, Inc.
    Inventors: Jin Young Kim, No Sun Park, Yoon Joo Kim, Seung Jae Lee, Se Woong Cha, Sung Kyu Kim, Ju Hoon Yoon
  • Patent number: 10294456
    Abstract: Disclosed is a method for culturing mesenchymal stem cells, comprising culturing mesenchymal stem cells in a medium containing calcium in a concentration of from 2.1 to 3.8 mM and magnesium in a concentration of from 1.0 to 3.0 mM under a hypoxic condition of 2 to 5% oxygen. The culturing method can increase the population of mesenchymal stem cells even with a small number of passages by improving mesenchymal stem cells in proliferative capacity and viability. In addition, the mesenchymal stem cells prepared by the culturing method are effectively used not only as a safe cell therapeutic agent due to their lacking immunogenicity, but also as a cartilage regenerating medicine owing to their excellent secretion of cytokines.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: May 21, 2019
    Assignee: MEDIPOST CO., LTD
    Inventors: Yoon-Sun Yang, Won Il Oh, Sun Jae Kwon, Mi Yeon Lee, Hong Bae Jeon
  • Publication number: 20120120547
    Abstract: There is provided a ceramic electronic component and a method of manufacturing the same. The method of manufacturing the ceramic electronic component includes: forming a fluorine coating layer on a ceramic sintered body, the fluorine coating layer having wettability of an external electrode paste lower than that of the external electrode paste on the ceramic sintered body and including carbon; and forming an external electrode by applying the external electrode paste on a surface of the ceramic sintered body.
    Type: Application
    Filed: February 10, 2011
    Publication date: May 17, 2012
    Inventors: Chi Hyoun RO, Yoon Sun Lee, Myung Jun Park
  • Patent number: 8036188
    Abstract: Disclosed is a frame structure in a high-speed wireless personal area network (WPAN) and a message transmitting method thereof which enable communications among devices existing in different piconets by using a device that provides a bridging function in the IEEE 802.15.3 WPAN. In a high-speed WPAN system which includes a parent piconet having a plurality of devices and a child piconet using time slots allocated by the devices located in the parent piconet, and a bridge device located in the child piconet, that broadcasts information about the devices of the parent piconet and information about the devices of the child piconet to the devices included in the high-speed WPAN, and operates to perform a data transfer between a first specified device in the child piconet and a second specified device in the parent piconet.
    Type: Grant
    Filed: April 3, 2007
    Date of Patent: October 11, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seo-Won Kwon, Se-Youn Lim, Jin-Hee Kim, Jae-Yeon Song, Yoon-Sun Lee, Jong-Hwa Lee
  • Patent number: 7570945
    Abstract: A home network system for supporting continuity of data transfer destined for an MS (Mobile Station) when the MS moves between wireless nodes, comprising a server for storing multimedia data and a network connecting the server to the MS via the wireless nodes. A first wireless node, while transferring predetermined data from the server to the MS, senses that a connection with the MS is cut off. The predetermined data to be transferred to the MS is then buffered in one or more of the wireless nodes at a time point of disconnection with the MS, and the first wireless node maintains a connection with the server. A second wireless node in the home network system establishes a connection with the MS and, in response a data transfer request from the MS, provides the buffered data to the MS.
    Type: Grant
    Filed: May 25, 2005
    Date of Patent: August 4, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yoon-Sun Lee, Jae-Yeon Song, Se-Youn Lim, Seo-Won Kwon, Ji-Eun Keum, Jong-Hwa Lee, Jeong-Min You
  • Patent number: 7535930
    Abstract: An optical network terminal (ONT) management control protocol of gigabit-capable passive optical network. A gigabit-capable passive optical network encapsulation method (GEM) frame structure that supports delivery of ONT management control information for an optical network unit (ONU) using a GEM and a method for processing data using the GEM frame structure. The GEM frame structure includes in the GEM header a payload type of the GEM header frame, and is used for a gigabit-capable passive optical network (GPON), wherein payload type information, which represents a data type of a payload portion of the GEM frame, is displayed in a header of the GEM frame, in order to provide a GEM control frame which delivers management control information transferred from an OLT (Optical Line Termination).
    Type: Grant
    Filed: March 15, 2004
    Date of Patent: May 19, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Se-Youn Lim, Jong-Hwa Lee, Yoon-Sun Lee, Seo-Won Kwon, Jae-Yeon Song, Jin-Hee Kim
  • Patent number: 7515571
    Abstract: Disclosed is a frame structure in a high-speed wireless personal area network (WPAN) and a message transmitting method thereof which enable communications among devices existing in different piconets by using a device that provides a bridging function in the IEEE 802.15.3 WPAN. In a high-speed WPAN system which includes a parent piconet having a plurality of devices and a child piconet using time slots allocated by the devices located in the parent piconet, and a bridge device located in the child piconet, that broadcasts information about the devices of the parent piconet and information about the devices of the child piconet to the devices included in the high-speed WPAN, and operates to perform a data transfer between a first specified device in the child piconet and a second specified device in the parent piconet.
    Type: Grant
    Filed: July 15, 2004
    Date of Patent: April 7, 2009
    Assignee: Samsung Electronics, Co., Ltd.
    Inventors: Seo-Won Kwon, Se-Youn Lim, Jin-Hee Kim, Jae-Yeon Song, Yoon-Sun Lee, Jong-Hwa Lee
  • Patent number: 7450551
    Abstract: A multicast transmission method in GEM mode in Gigabit-capable passive optical network and a method of processing frames. The multicast transmission method includes the steps of: (a) setting a multicast connection; and (b) transmitting multicast messages in a GEM mode, wherein said step (a) includes a first sub step (i), in which predetermined ONTs are registered to a multicast group by means of IGMP frames in the first step, and a second sub step (11), in which an OLT assigns a multicast port ID to the multicast group and the ONTs registered to the multicast group. In addition, step (b) includes a first substep (i), in which the OLT assigns a multicast port ID to a message transmitted from a router to the multicast group, and transmits the message, and a second sub-step (ii), in which an ONT, which belongs to the OLT, filters the message, to which the multicast port ID is assigned, by means of a port ID assigned to the ONT.
    Type: Grant
    Filed: June 16, 2004
    Date of Patent: November 11, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Se-Youn Lim, Jae-Yeon Song, Jin-Hee Kim, Seo-Won Kwon, Yoon-Sun Lee, Jong-Hwa Lee
  • Patent number: 7450515
    Abstract: A GEM OAM frame transmission method used in a Gigabit-capable passive optical network is provided. The method defines an OAM frame structure in a GEM mode of the Gigabit-capable passive optical network and enables an OAM to be achieved even when the GEM mode is operated. The method comprises the steps of: constructing a GEM OAM frame including a GEM header field and a GEM payload field, the GEM header field containing OAM representation information indicating that the GEM OAM frame contains the OAM information, the GEM payload field containing the OAM information; and transmitting the constructed GEM OAM frame in order to enable the ONU/ONT to perform an operation according to the OAM information.
    Type: Grant
    Filed: April 5, 2004
    Date of Patent: November 11, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae-Yeon Song, Se-Youn Lim, Jin-Hee Kim, Seo-Won Kwon, Yoon-Sun Lee, Jong-Hwa Lee
  • Patent number: 7440775
    Abstract: A method for controlling a local printer connected to a PC (Personal Computer) using a portable terminal for mobile communication in a home network system. The method controls the printer serving as a local device not included in the home network system by means of the portable terminal for mobile communication serving as a home networking device. In the home network system including the portable terminal and the PC, the portable terminal is connected to the PC by means of home networking. Content within the PC is searched for and selected using the portable terminal. The portable terminal sends a print request message to the PC so that the local printer can print the selected content. In response to the print request message, the PC creates a print job and transfers the selected content to the local printer so that the local printer can print the transferred content. The portable terminal receives a result of the print job from the local printer through the PC.
    Type: Grant
    Filed: April 27, 2005
    Date of Patent: October 21, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yoon-Sun Lee, Ki-Ho Jung, Jae-Yeon Song, Eun-Taek Lim
  • Patent number: 7406103
    Abstract: A method and apparatus for transmitting data from an optical network unit (ONU) to an optical line termination (OLT) in a Gigabit Ethernet passive optical network (GE-PON) on the basis of a time division multiple access (TDMA) scheme are provided. A measurement of a data transmission time when the data is transmitted to the OLT is obtained, and the measured data transmission time is compared with a predetermined normal transmission time. The transmission of the data is maintained if the measured data transmission time is determined to be less than or equal to the normal transmission time from the comparison result. However, if the measured data transmission time is determined to be greater than the normal transmission time, the transmission of the data is stopped.
    Type: Grant
    Filed: January 23, 2004
    Date of Patent: July 29, 2008
    Assignee: Samsung Electronics Co, Ltd.
    Inventors: Jae-Yeon Song, Jin-Hee Kim, Se-Youn Lim, Jong-Hwa Lee, Yoon-Sun Lee, Seo-Won Kwon, Jong-Ho Yoon
  • Patent number: 7376136
    Abstract: A GTC frame Structure and a method for transmission of ONT management control information in GPON. The method comprises the steps of: constructing a GTC frame which includes a PCBd portion having an OMCC field including either destination identifier information for supporting a GEM mode or destination identifier information for supporting a ATM mode, and a payload portion including data; and transmitting the GTC frame. The GTC frame structure for ONT management control information transmission can transmit the management control information to an ONT supporting either ATM mode or GEM mode.
    Type: Grant
    Filed: March 18, 2004
    Date of Patent: May 20, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae-Yeon Song, Se-Youn Lim, Jin-Hee Kim, Seo-Won Kwon, Yoon-Sun Lee, Jong-Hwa Lee
  • Patent number: 7340177
    Abstract: A device and method to monitor and temperature compensate change in wavelength within a WDM optical communication system is disclosed. The device includes a laser diode for generating an optical signal for temperature monitoring, a first fiber Fabry-Perot interferometer sensor unit for generating a first sensor signal according to temperature by means of the optical signal, and a processor for monitoring temperature by means of the first sensor signal and an externally provided second sensor signal and equalizing waveforms of the two sensor signals with each other. The externally provided second sensor signal is provided by a remote node that includes a second fiber Fabry-Perot interferometer sensor unit for receiving the optical signal for temperature monitoring to generate the second sensor signal according to temperature, and a waveguide grating router unit for transmitting the second sensor signal to the optical line terminal.
    Type: Grant
    Filed: June 7, 2004
    Date of Patent: March 4, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seo-Won Kwon, Kyung-Woo Lee, Jin-Hee Kim, Se-Youn Lim, Jong-Hwa Lee, Yoon-Sun Lee, Jae-Yeon Song
  • Patent number: 7310473
    Abstract: A light concentrator for an optical antenna gradually narrows from the light receiving end to the end in contact with a light detector, and has a refractive index that gradually increases from the first to the second end, to afford a greater acceptance angle for the incoming optical signal. The increase may occur in stages of corresponding layers of the light concentrator, the layers being arranged in order of increase in refractive index from the first end to the second end.
    Type: Grant
    Filed: July 20, 2004
    Date of Patent: December 18, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin-Hee Kim, Jong-Hwa Lee, Ji-Eun Keum, Jae-Yeon Song, Se-Youn Lim, Yoon-Sun Lee, Seo-Won Kwon
  • Publication number: 20070177570
    Abstract: Disclosed is a frame structure in a high-speed wireless personal area network (WPAN) and a message transmitting method thereof which enable communications among devices existing in different piconets by using a device that provides a bridging function in the IEEE 802.15.3 WPAN. In a high-speed WPAN system which includes a parent piconet having a plurality of devices and a child piconet using time slots allocated by the devices located in the parent piconet, and a bridge device located in the child piconet, that broadcasts information about the devices of the parent piconet and information about the devices of the child piconet to the devices included in the high-speed WPAN, and operates to perform a data transfer between a first specified device in the child piconet and a second specified device in the parent piconet.
    Type: Application
    Filed: April 3, 2007
    Publication date: August 2, 2007
    Inventors: Seo-Won Kwon, Se-Youn Lim, Jin-Hee Kim, Jae-Yeon Song, Yoon-Sun Lee, Jong-Hwa Lee