Patents by Inventor Seong Hoon Lee

Seong Hoon 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).

  • SHIELD APPARATUS FOR HEAD LAMP
    Publication number: 20150167916
    Abstract: A shield apparatus for a head lamp may include a shield with a plurality of divided shields each having a rotating shaft and an actuator providing power to rotate the plurality of divided shields. The plurality of divided shields may be disposed on a shield body one above the other and may be rotatably coupled to each other via the rotating shafts. The plurality of divided shields may have vertical lengths that are gradually increased in a direction from an uppermost divided shield to a lowermost divided shield.
    Type: Application
    Filed: May 13, 2014
    Publication date: June 18, 2015
    Applicant: Hyundai Motor Company
    Inventor: Seong-Hoon Lee
  • SHIELD APPARATUS FOR LOW-BEAM HEAD LAMP
    Publication number: 20150167914
    Abstract: A shield apparatus for a low-beam head lamp may include a projection reflector equipped with a light source therein, a shield body having a through hole being formed in the shield body towards a lens, wherein the shield body may be coupled to a front surface of the projection reflector, and wherein the through hole includes a high beam distribution area and a lower beam distribution area, and a plurality of blind shields coupled to the shield body to cover the low-beam distribution area of the through hole and arranged one above another other, wherein the blind shields may be inclined at a predetermined angle to guide an irradiation direction of light outputted from the light source towards the low-beam distribution area.
    Type: Application
    Filed: July 16, 2014
    Publication date: June 18, 2015
    Applicant: Hyundai Motor Company
    Inventor: Seong Hoon Lee
  • CURRENT SENSE AMPLIFIERS, MEMORY DEVICES AND METHODS
    Publication number: 20150131359
    Abstract: A current sense amplifier may include one or more clamping circuits coupled between differential output nodes of the amplifier. The clamping circuits may be enabled during at least a portion of the time that the sense amplifier is sensing the state of a memory cell coupled to a differential input of the sense amplifier. The clamping circuits may be disabled during the time that the sense amplifier is sensing the state of a memory cell at different times in a staggered manner. The clamping circuits may be effecting in making the current sense amplifier less sensitive to noise signals.
    Type: Application
    Filed: January 21, 2015
    Publication date: May 14, 2015
    Inventors: ONEGYUN NA, JONGTAE KWAK, SEONG-HOON LEE, HOON CHOI
  • Organic nanofiber structure based on self-assembled organogel, organic nanofiber transistor using the same, and method of manufacturing the organic nanofiber transistor
    Patent number: 9029840
    Abstract: An organic nanofiber including a gelled organic semiconductor compound. Also disclosed is an organic semiconductor transistor and a method of manufacturing an organic semiconductor transistor.
    Type: Grant
    Filed: November 7, 2012
    Date of Patent: May 12, 2015
    Assignees: Samsung Electronics Co., Ltd., Seoul National University R&DB Foundation
    Inventors: Jong-in Hong, Myoung-chul Um, Jung-pyo Hong, Seong-hoon Lee
  • Sense amplifier having loop gain control
    Patent number: 9013942
    Abstract: Memories, sense amplifiers, and methods for amplifying a current input are disclosed, including a sense amplifier including a bias circuit configured to provide a bias voltage having a magnitude responsive to maintaining a substantially constant loop gain, and further including an amplifier stage coupled to the bias circuit to receive the bias voltage and configured to amplify a input current at an input-output node, a loop gain of the current amplifier stage is controlled at least in part to the bias voltage.
    Type: Grant
    Filed: February 24, 2014
    Date of Patent: April 21, 2015
    Assignee: Micron Technology, Inc.
    Inventor: Seong-Hoon Lee
  • ELECTRIC CART APPARATUS
    Publication number: 20150097358
    Abstract: An electric cart apparatus includes a basket in which objects are to be held. A plurality of front and rear legs is erected downward from the basket. First ends of oblique links are coupled with the basket. Second ends of the oblique links are coupled with lower sections of the front legs. Each of the oblique links is divided into an upper link and a lower link. The lower link has a sliding slot which extends in a lengthwise direction. The upper link has a link engagement portion which is to move along the sliding slot. First ends of auxiliary links are coupled with link coupling portions of the oblique links. Second ends of the auxiliary links are coupled with central portions of the rear legs. Wheels are coupled with lower ends of the front and rear legs.
    Type: Application
    Filed: September 4, 2014
    Publication date: April 9, 2015
    Inventor: Seong Hoon Lee
  • COATING MATERIAL FOR ALUMINUM DIE CASTING AND METHOD FOR COATING THE SAME
    Publication number: 20150072123
    Abstract: Disclosed is a coating material for aluminum die casting and a method for coating the same, the coating material including: a CrN adhesion layer formed on a surface of a base material; a TrAlN/CrN support layer formed on a surface of the CrN adhesion layer; and a TiAl(CrSi)VCN functional layer formed on a surface of the TiAlN/CrN support layer. The present coating material solves the hot stamping and sticking problem of a conventional aluminum die casting mold and the like, enhances thermal resistance, and further has enhanced thermal resistance, high-temperature wear resistance, sticking resistance and thermal impact resistance compared to that of a conventional coating material.
    Type: Application
    Filed: December 29, 2013
    Publication date: March 12, 2015
    Applicant: HYUNDAI MOTOR COMPANY
    Inventors: Sung-Chul Cha, Seong-Jin Kim, Seong-Hoon Lee
  • OPTICAL FILM, BACKLIGHT UNIT COMPRISING SAME, AND LIQUID DISPLAY DEVICE COMPRISING OPTICAL FILM
    Publication number: 20150062485
    Abstract: The present invention relates to an optical film, a backlight unit comprising same, and a liquid crystal display comprising an optical film, and more specifically, to an optical film, a backlight unit comprising same, and a liquid crystal display comprising an optical film for enhancing luminance and external characteristics.
    Type: Application
    Filed: December 12, 2012
    Publication date: March 5, 2015
    Inventors: Seong Hoon Lee, Sang Cheon Park, Seong Joo Min
  • Current sense amplifiers, memory devices and methods
    Patent number: 8947964
    Abstract: A current sense amplifier may include one or more clamping circuits coupled between differential output nodes of the amplifier. The clamping circuits may be enabled during at least a portion of the time that the sense amplifier is sensing the state of a memory cell coupled to a differential input of the sense amplifier. The clamping circuits may be disabled during the time that the sense amplifier is sensing the state of a memory cell at different times in a staggered manner. The clamping circuits may be effecting in making the current sense amplifier less sensitive to noise signals.
    Type: Grant
    Filed: June 21, 2010
    Date of Patent: February 3, 2015
    Assignee: Micro Technology, Inc.
    Inventors: Onegyun Na, Jongtae Kwak, Seong-Hoon Lee, Hoon Choi
  • SENSE AMPLIFIERS INCLUDING BIAS CIRCUITS
    Publication number: 20140354361
    Abstract: Sense amplifiers including bias circuits axe described. Examples include bias circuits having an adjustable width transistor. A loop gain of the bias circuit may be determined in part by the adjustable width of the transistor. Examples of sense amplifiers including amplifier stages configured to bias an input/output node to a reference voltage.
    Type: Application
    Filed: August 18, 2014
    Publication date: December 4, 2014
    Inventor: SEONG-HOON LEE
  • Variable differential mount apparatus using magnetorheological elastomer
    Patent number: 8844914
    Abstract: Disclosed is a variable differential mount apparatus using a Magnetorheological Elastomer (MRE). The apparatus includes a core, a coil, a plurality of MRE supports, and a magnetic path formation member. The core has a plurality of arms disposed thereon. The coil is wound on the plurality of arms, respectively. The plurality of MRE supports are disposed to face the plurality of arms, respectively. The magnetic path formation member is disposed outside the plurality of MRE supports. More specifically, a current is applied to coil to vary the degree of stiffness of the variable differential mount based on a particular driving condition to allow for increased handling and comfort.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: September 30, 2014
    Assignees: Hyundai Motor Company, IUCF-HYU (Industry-University Cooperation Foundation Hanyang University)
    Inventors: Min Soo Kim, Kyung Mo Yang, Seong Hoon Lee, Ji Hyun Yoon, Un Chang Jeong, In Hyung Yang, Jae Eung Oh
  • Quantum dots having composition gradient shell structure and manufacturing method thereof
    Patent number: 8847201
    Abstract: Provided are quantum dots having a gradual composition gradient shell structure which have an improved luminous efficiency and optical stability, and a method of manufacturing the quantum dots in a short amount of time at low cost. In the method, the quantum dots can be manufactured in a short amount of time at low cost using a reactivity difference between semiconductor precursors, unlike in uneconomical and inefficient conventional methods where shells are formed after forming cores and performing cleaning and redispersion processes. Also, formation of the cores is followed by formation of shells having a composition gradient.
    Type: Grant
    Filed: August 20, 2012
    Date of Patent: September 30, 2014
    Assignee: SNU R&DB Foundation
    Inventors: Kookheon Char, Seong Hoon Lee, Wan Ki Bae, Hyuck Hur
  • Memory device and signal driving device thereof
    Patent number: 8830769
    Abstract: A signal driving device includes a constant current circuit configured to provide a constant current, a first mirror circuit configured to generate a mirror current from the constant current and provide a voltage according to the mirror current of the constant current, a circuit comprising a switch device and configured to provide a driver current, a second mirror circuit configured to generate a mirror current of the driver current and output a voltage that includes a voltage drop caused when the mirror current of the driver current flows through a replica switch device, and a differential amplifier configured to receive the voltage from the first mirror circuit and the voltage from the second mirror circuit to provide a biased voltage for the bias circuit and thereby induce the driver current.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: September 9, 2014
    Assignee: Nanya Technology Corporation
    Inventor: Seong Hoon Lee
  • Sense amplifiers including bias circuits
    Patent number: 8810281
    Abstract: Sense amplifiers including bias circuits are described. Examples include bias circuits having an adjustable width transistor. A loop gain of the bias circuit may be determined in part by the adjustable width of the transistor. Examples of sense amplifiers including amplifier stages configured to bias an input/output node to a reference voltage.
    Type: Grant
    Filed: July 26, 2011
    Date of Patent: August 19, 2014
    Assignee: Micron Technology, Inc.
    Inventor: Seong-Hoon Lee
  • CURRENT MODE SENSE AMPLIFIER WITH PASSIVE LOAD
    Publication number: 20140226425
    Abstract: Memories, current mode sense amplifiers, and methods for operating the same are disclosed, including a current mode sense amplifier including cross-coupled p-channel transistors and a load circuit coupled to the cross-coupled p-channel transistors. The load circuit is configured to provide a resistance to control at least in part the loop gain of the current mode sense amplifier, the load circuit including at least passive resistance.
    Type: Application
    Filed: April 22, 2014
    Publication date: August 14, 2014
    Applicant: MICRON TECHNOLOGY, INC.
    Inventors: SEONG-HOON LEE, ONEGYUN NA, JONGTAE KWAK
  • Fighter robot system
    Patent number: 8758077
    Abstract: A fighter robot system that supplies power to two fighter robots, which have a match against each other, through respective power lines and prevents the power lines from becoming entangled even when the robots are moving. The fighter robot system includes two fighter robots, a power supply providing power to the fighter robots, and a rotary member located above or below the fighter robots, the rotary member having a predetermined length and rotatable around a central axis formed at a predetermined portion. The power supply provides the power to the fighter robots through power lines. Each power line starts from the power supply, extends from the central axis to either end of the rotary member in the lengthwise direction, and is connected at that end to each fighter robot. The rotary member rotates around the central axis following the movement of the fighter robots.
    Type: Grant
    Filed: June 7, 2010
    Date of Patent: June 24, 2014
    Assignee: Robobuilder Co., Ltd.
    Inventors: Hong-Min Jang, Seong-Hoon Lee
  • SENSE AMPLIFIER HAVING LOOP GAIN CONTROL
    Publication number: 20140167848
    Abstract: Memories, sense amplifiers, and methods for amplifying a current input are disclosed, including a sense amplifier including a bias circuit configured to provide a bias voltage having a magnitude responsive to maintaining a substantially constant loop gain, and further including an amplifier stage coupled to the bias circuit to receive the bias voltage and configured to amplify a input current at an input-output node, a loop gain of the current amplifier stage is controlled at least in part to the bias voltage.
    Type: Application
    Filed: February 24, 2014
    Publication date: June 19, 2014
    Applicant: Micron Technology, Inc.
    Inventor: Seong-Hoon Lee
  • Data serializers, output buffers, memory devices and methods of serializing
    Patent number: 8743642
    Abstract: Data serializers, output buffers, memory devices and methods for serializing are provided, including a data serializer that may convert digits of parallel data to a stream of corresponding digits of serial data digits. One such data serializer may include a logic system receiving the parallel data digits and clock signals having phases that are equally phased apart from each other. Such a data serializer may use the clock signals to generate data sample signals having a value corresponding to the value of a respective one of the parallel data digits and a timing corresponding to a respective one of the clock signals. The data sample signals may be applied to a switching circuit that includes a plurality of switches, such as respective transistors, coupled to each other in parallel between an output node and a first voltage.
    Type: Grant
    Filed: June 7, 2012
    Date of Patent: June 3, 2014
    Assignee: Micron Technology, Inc.
    Inventor: Seong-Hoon Lee
  • Current mode sense amplifier with passive load
    Patent number: 8705304
    Abstract: Memories, current mode sense amplifiers, and methods for operating the same are disclosed, including a current mode sense amplifier including cross-coupled p-channel transistors and a load circuit coupled to the cross-coupled p-channel transistors. The load circuit is configured to provide a resistance to control at least in part the loop gain of the current mode sense amplifier, the load circuit including at least passive resistance.
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: April 22, 2014
    Assignee: Micron Technology, Inc.
    Inventors: Seong-Hoon Lee, Onegyun Na, Jongtae Kwak
  • SIGNAL DRIVER CIRCUIT HAVING ADJUSTABLE OUTPUT VOLTAGE FOR A HIGH LOGIC LEVEL OUTPUT SIGNAL
    Publication number: 20140062531
    Abstract: A signal driver circuit having an adjustable output voltage for a high-logic level output signal. The signal driver circuit includes a signal driver configured to output a first logic level signal having a first voltage and output a second logic level signal having a second voltage according to an input signal. A voltage controlled voltage supply coupled to the signal driver provides the first voltage for the first logic level signal. The magnitude of the first voltage provided by the voltage controlled voltage supply is based on a bias voltage. A bias voltage generator can be coupled to the voltage controlled voltage supply to provide the bias voltage.
    Type: Application
    Filed: November 11, 2013
    Publication date: March 6, 2014
    Applicant: Micron Technology, Inc.
    Inventor: Seong-Hoon Lee