Patents by Inventor Sun-Woo Lee

Sun-Woo 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: 20150186624
    Abstract: A system and a method for managing a personal content copyright using a context-based search engine is provided. The system is connected to a copyright owner terminal through a communication network and includes a web server and a database server. The web server receives contents as contents to be managed and policy information, from the copyright owner terminal, extracts a feature point of the contents to be managed, according to a type of the contents to be managed, and registers the feature point of the contents to be managed. The database server stores the feature point of the contents to be managed and the policy information.
    Type: Application
    Filed: December 29, 2014
    Publication date: July 2, 2015
    Inventors: Min-Sup LEE, Sun-Woo LEE
  • Publication number: 20150002491
    Abstract: According to an exemplary embodiment of the present invention, the gap between a display panel and a driving circuit is maintained by an insulating side wall that covers the sides of conductors provided on a drive pad and that is higher than the surface of the conductors without adding a photolithography process. Even when, as the resolution of the display device is increased, the gap between two adjacent conductors is reduced, the two adjacent conductors may be prevented from being shorted.
    Type: Application
    Filed: June 27, 2014
    Publication date: January 1, 2015
    Inventors: Sun-Woo Lee, Jin-Hee Jeong
  • Patent number: 8922146
    Abstract: An apparatus for estimating rotor time constant of induction motor, the apparatus being such that d-axis and q-axis current commands are received to output q-axis voltage command, to output q-axis voltage estimate, to output a changed value of rotor time constant, which is a difference between the q-axis voltage command and the q-axis voltage estimate, and to add the changed value of the rotor time constant to a rotor time constant, whereby the changed rotor time constant is outputted.
    Type: Grant
    Filed: October 26, 2012
    Date of Patent: December 30, 2014
    Assignee: LSIS Co., Ltd.
    Inventor: Sun Woo Lee
  • Publication number: 20140340019
    Abstract: An inverter is provided. The inverter includes a current providing unit providing a first axis current and a second axis current to an induction motor; a revolutions per minute (RPM) measuring unit measuring the RPM of the induction motor; and a control unit changing the second axis current according to the measured RPM.
    Type: Application
    Filed: March 25, 2014
    Publication date: November 20, 2014
    Applicant: LSIS CO., LTD.
    Inventors: BYUNG WOON JANG, CHUN SUK YANG, JAE HOON JANG, JOONG KI JUNG, SUN WOO LEE
  • Patent number: 8867940
    Abstract: An image forming apparatus including a transfer unit that transfers onto a transfer medium an image that is formed on a photosensitive medium; a power supply unit that provides a transfer power to the transfer unit; and a transfer power control unit that controls the transfer power that is provided to the transfer unit by the power supply unit. The transfer power control unit sets as a target voltage an output voltage of the power supply unit that is measured by supplying an initial transfer current to the transfer unit in a predetermined certain period before an image is transferred onto the transfer medium and controls the power supply unit to apply the set target voltage to the transfer unit while an image is being transferred onto the transfer medium.
    Type: Grant
    Filed: January 3, 2012
    Date of Patent: October 21, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sun-woo Lee, Shinich Hisatomi, Byung-kyu Kim
  • Publication number: 20140255762
    Abstract: Disclosed is a secondary battery including a plurality of electrode assemblies. The secondary battery includes a first electrode assembly including a first cathode, a first separator and a first anode, and a second electrode assembly including a second cathode, a second separator and a second anode, wherein, When an electrode plate area of the second electrode assembly is smaller than that of the first electrode assembly, a cross-sectional thickness of the second electrode assembly is larger than that of the first electrode assembly.
    Type: Application
    Filed: May 21, 2014
    Publication date: September 11, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Sun Woo LEE, Hyun Jong YANG, Jae Dong CHANG
  • Patent number: 8508162
    Abstract: Disclosed is a system and a method for controlling torque of induction motor in electric vehicle. The system and method for controlling torque of induction motor in electric vehicle according to the present disclosure has an advantageous effect in that torque control problems caused by saturation of magnetic flux, parameters of induction motor and changes in battery voltages during control of torque in the induction motor can be solved using a look-up table (a type of data table), thereby enhancing accuracy in torque control and improving travel performance and fuel efficiency of the electric vehicle.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: August 13, 2013
    Assignee: LSIS Co., Ltd.
    Inventors: Gi Young Choi, Sun Woo Lee
  • Publication number: 20130181352
    Abstract: Provided are a method of growing carbon nanotubes laterally, including forming catalyst dots to grow carbon nanotubes on a substrate, forming a sacrificial layer including a plurality of nanochannels including regions having the catalyst dots formed therein, and growing carbon nanotubes through the nanochannels, and a field effect transistor using the method.
    Type: Application
    Filed: March 1, 2012
    Publication date: July 18, 2013
    Applicant: Industry-Academic Cooperation Foundation at NamSeoul Unversity
    Inventors: Sun-Woo Lee, Boong-Joo Lee
  • Publication number: 20120177391
    Abstract: An image forming apparatus including a transfer unit that transfers onto a transfer medium an image that is formed on a photosensitive medium; a power supply unit that provides a transfer power to the transfer unit; and a transfer power control unit that controls the transfer power that is provided to the transfer unit by the power supply unit. The transfer power control unit sets as a target voltage an output voltage of the power supply unit that is measured by supplying an initial transfer current to the transfer unit in a predetermined certain period before an image is transferred onto the transfer medium and controls the power supply unit to apply the set target voltage to the transfer unit while an image is being transferred onto the transfer medium.
    Type: Application
    Filed: January 3, 2012
    Publication date: July 12, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sun-woo Lee, Shinich Hisatomi, Byung-kyu Kim
  • Publication number: 20120169268
    Abstract: Disclosed is a system and a method for controlling torque of induction motor in electric vehicle. The system and method for controlling torque of induction motor in electric vehicle according to the present disclosure has an advantageous effect in that torque control problems caused by saturation of magnetic flux, parameters of induction motor and changes in battery voltages during control of torque in the induction motor can be solved using a look-up table (a type of data table), thereby enhancing accuracy in torque control and improving travel performance and fuel efficiency of the electric vehicle.
    Type: Application
    Filed: December 22, 2011
    Publication date: July 5, 2012
    Applicant: LSIS CO., LTD
    Inventors: Gi Young CHOI, Sun Woo LEE
  • Patent number: 8160483
    Abstract: An image forming apparatus may include: a plurality of image bearing members; an exposure unit; a developing unit; a transfer unit including a plurality of transfer rollers and a plurality of erasers each disposed between the transfer rollers; and a fixing unit. The eraser may be disposed in a zone Z1 satisfying the following formula: D1?Z1?D?D3; D1=4.5 mm; D3=4.5 mm; and 9.0 mm<D Here, D1 may be an allowable minimum distance between an end part of the eraser and a center of a first transfer nip between a first image bearing member and a first transfer roller; D3 may be an allowable minimum distance between the end part of the eraser and a center of a second transfer nip between a second image bearing member and a second transfer roller; and D may be a distance between the centers of the transfer nips.
    Type: Grant
    Filed: July 23, 2009
    Date of Patent: April 17, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sun-woo Lee, Won-chul Jung, Myung-ho Kyung
  • Publication number: 20120064692
    Abstract: A method of manufacturing a memory device having a carbon nanotube can be provided by forming a lower electrode on a substrate and forming an insulating interlayer on the lower electrode. An upper electrode including a diode can be formed on the insulating interlayer, where the upper electrode can have a first void exposing a sidewall of the diode and a portion of the insulating interlayer. A portion of the insulating interlayer can be partially removed to form an insulating interlayer pattern having a second void that exposes a portion of the lower electrode, where the second void can be connected with the first void. A carbon nanotube wiring can be formed from the lower electrode through the second and first voids, where the carbon nanotube wiring may be capable of being electrically connected with the diode of the upper electrode by a voltage applied to the lower electrode.
    Type: Application
    Filed: September 16, 2011
    Publication date: March 15, 2012
    Inventors: Seong-Ho MOON, Hong-Sik Yoon, Subramanya Mayya, Sun-Woo Lee, Dong-Woo Kim, Xiaofeng Wang
  • Publication number: 20110303971
    Abstract: A method for manufacturing a three-dimensional semiconductor memory includes forming a plurality of stacked structures disposed on a substrate to be spaced apart from each other, each of the stacked structures including a plurality of dielectric patterns and a plurality of polysilicon patterns alternately stacked, forming a metal layer to cover sidewalls of the stacked structures and a top surface of the substrate exposed between the stacked structures, and forming stacked gate electrodes on the substrate and a conductive line in the substrate by performing a silicidation process between the metal layer and each of the polysilicon patterns and the substrate.
    Type: Application
    Filed: June 10, 2011
    Publication date: December 15, 2011
    Inventors: Changwon Lee, Kihyun Hwang, Hanmei Choi, Sun Woo Lee, Junkyu Yang, Sunggil Kim, Jeonggil Lee, Seon-Ho Jo
  • Patent number: 8039919
    Abstract: In a memory device having a carbon nanotube and a method of manufacturing the same, the memory device includes a lower electrode, an upper electrode having a first void exposing a sidewall of a diode therein, an insulating interlayer pattern having a second void exposing a portion of the lower electrode between the lower electrode and the upper electrode, and a carbon nanotube wiring capable of being electrically connected with the diode of the upper electrode by a voltage applied to the lower electrode. The memory device may reduce generation of a leakage current in a cross-bar memory.
    Type: Grant
    Filed: May 20, 2009
    Date of Patent: October 18, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seong-Ho Moon, Hong-Sik Yoon, Subramanya Mayya, Sun-Woo Lee, Dong-Woo Kim, Xiaofeng Wang
  • Patent number: 8032040
    Abstract: An image forming apparatus includes a static electricity eliminator to remove residual charge from a printing medium. A selector is provided to connect the static electricity eliminator to ground through a selected resistance, and a controller is provided to control the selector depending on printing medium characteristics. The resistance in the ground path connected to the static electricity eliminator is changed according to printing medium characteristics such that elimination of residual charge is effective over a range of printing media having different printing medium characteristics.
    Type: Grant
    Filed: January 9, 2008
    Date of Patent: October 4, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Sun-woo Lee
  • Patent number: 8007875
    Abstract: In a method of forming carbon nano-tubes, a catalytic film is formed on a substrate. The catalytic film is then transformed into preliminary catalytic particles. Thereafter, the preliminary catalytic particles are transformed into catalytic particles. Carbon nano-tubes then grow from the catalytic particles. The carbon nano-tubes have relatively high conductivity and high number density.
    Type: Grant
    Filed: August 1, 2007
    Date of Patent: August 30, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hong-Sik Yoon, Young-Moon Choi, Sun-Woo Lee
  • Publication number: 20110189846
    Abstract: A method of manufacturing a non-volatile memory device including a tunnel oxide layer, a preliminary charge storing layer and a dielectric layer on a semiconductor layer is disclosed. A first polysilicon layer is formed on the dielectric layer. A barrier layer and a second polysilicon layer are formed on the first polysilicon layer. The second polysilicon layer, the barrier layer, the first polysilicon layer, the dielectric layer, the preliminary charge storing layer and the tunnel oxide layer are patterned to form a tunnel layer pattern, a charge storing layer pattern, a dielectric layer pattern, a first control gate pattern, a barrier layer pattern and a second polysilicon pattern. A nickel layer is formed on the second polysilicon layer. Heat treatment is performed with respect to the second polysilicon pattern and the nickel layer to form a second control gate pattern including NiSi on the barrier layer pattern.
    Type: Application
    Filed: February 4, 2011
    Publication date: August 4, 2011
    Inventors: Jeong Gil Lee, Chang-Won Lee, Sang-Woo Lee, Sun-Woo Lee, Ki-Hyun Hwang, Jae-Hwa Park, Eun-Ji Jung
  • Patent number: 7982318
    Abstract: A device includes an insulating layer on a substrate having a lower conductive pattern, the insulating layer having a contact hole that penetrates the insulating layer and exposes a portion of the lower conductive pattern, a catalytic pattern having a first portion on the exposed portion of the lower conductive pattern and a second portion on a sidewall of the contact hole, a spacer on the sidewall of the contact hole, wherein the second portion of the catalytic pattern is disposed between the spacer and the sidewall, and a contact plug in the contact hole and contacting the catalytic pattern, the contact plug being a carbon nanotube material.
    Type: Grant
    Filed: January 19, 2007
    Date of Patent: July 19, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jang-Eun Heo, Young-Moon Choi, Sun-Woo Lee, Hong-Sik Yoon, Kyung-Rae Byun
  • Patent number: 7918606
    Abstract: A rolling bearing assembly has an inner race, an outer race and a plurality of rolling elements interposed between respective raceway surfaces of the inner and outer races. A stationary raceway member, which is one of the inner and outer races that are a raceway member and which is non-rotatable, is provided with a stepped face continued with the corresponding raceway surface and located in a direction away from the rolling elements, and is also provided with a gap defining piece having a tip held in face-to-face relation to the stepped face with a gap intervening between it and the stepped face and defining a flow path between a peripheral wall thereof and the stationary raceway member; there being provided a grease reservoir communicated with the flow path.
    Type: Grant
    Filed: October 7, 2005
    Date of Patent: April 5, 2011
    Assignee: NTN Corporation
    Inventors: Yoshinobu Akamatsu, Masatsugu Mori, Takuji Kobayashi, Sun-Woo Lee
  • Patent number: 7877865
    Abstract: In a method of forming a wiring having a carbon nanotube, a lower wiring is formed on a substrate, and a catalyst layer is formed on the lower wiring. An insulating interlayer is formed on the substrate to cover the catalyst layer, and an opening is formed through the insulating interlayer to expose an upper face of the catalyst layer. A carbon nanotube wiring is formed in the opening, and an upper wiring is formed on the carbon nanotube wiring and the insulating interlayer to be electrically connected to the carbon nanotube wiring. A thermal stress is generated between the carbon nanotube wiring and the upper wiring to produce a dielectric breakdown of a native oxide layer formed on a surface of the carbon nanotube wiring. A wiring having a reduced electrical resistance between the carbon nanotube wiring and the upper wiring may be obtained.
    Type: Grant
    Filed: April 29, 2009
    Date of Patent: February 1, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sun-Woo Lee, Seong-Ho Moon, Dong-Woo Kim, Jung-Hyeon Kim, Hong-Sik Yoon