Patents by Inventor Tae Kang

Tae Kang 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).

  • MICRO X-RAY TUBE
    Publication number: 20160148778
    Abstract: The present disclosure may provide a micro X-ray tube with a filter tube to filter X-rays and at the same time to serve as an insulator. For this, the X-ray tube may include a filter tube between a second electrode and a gate electrode, hence separating from each other. The second electrode may have a target and the gate electrode may accelerate an electron-beam to collide with the target. The filter tube includes an alumina (Al2O3). The target is inclined to allow the X-rays to be directed toward the filter tube.
    Type: Application
    Filed: November 17, 2015
    Publication date: May 26, 2016
    Inventors: Jun Tae KANG, Yoon Ho SONG, Jin Woo JEONG
  • FIELD EMISSION DEVICE
    Publication number: 20160148776
    Abstract: Provided herein is a field emission device. The field emission device includes a cathode which is connected to a negative power supply and emits electrons, an anode which is connected to a positive power supply and includes a target material receiving the electrons emitted from the cathode, and a ground electrode which is formed to face the anode and has an opening through which the electrons emitted from the cathode pass. The ground electrode is grounded so that when an arc discharge occurs due to high voltage operation of the anode, electric charge produced by the arc discharge is emitted to a ground.
    Type: Application
    Filed: November 17, 2015
    Publication date: May 26, 2016
    Inventors: Jin Woo JEONG, Yoon Ho SONG, Jun Tae KANG, Jae Woo KIM
  • Multi-electrode field emission device having single power source and method of driving same
    Patent number: 9351350
    Abstract: A field emission device and a method of driving the multi-electrode field emission device having a single driving power source are disclosed. The field emission device includes a cathode electrode, one or more gate electrodes, a voltage division unit, and a power source unit. The cathode electrode is figured such that at least one emitter is formed thereon. The gate electrodes are disposed between an anode electrode and the cathode electrode, and each have one or more openings through which electrons emitted from the emitter can pass. The voltage division unit has one or more divider resistors, and divides a voltage applied from the power source unit using the divider resistors and then applies partial voltages to the one or more gate electrodes. The power source unit includes a single power source, and applies the voltage to the voltage division unit.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: May 24, 2016
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jin-Woo Jeong, Yoon-Ho Song, Jae-Woo Kim, Jun-Tae Kang
  • SEMICONDUCTOR LIGHT-EMITTING DEVICES AND SEMICONDUCTOR LIGHT-EMITTING DEVICE PACKAGES
    Publication number: 20160133788
    Abstract: Semiconductor light-emitting devices, and semiconductor light-emitting packages, include at least one light-emitting structure including a first conductivity-type semiconductor layer, an active layer, and a second conductivity-type semiconductor layer sequentially stacked on a substrate, the at least one light-emitting structure having a first region and a second region delimiting the first region. The light-emitting device includes a groove in the second region, and the groove is adjacent to an edge of the substrate and extends parallel to the edge of the substrate.
    Type: Application
    Filed: July 1, 2015
    Publication date: May 12, 2016
    Inventors: Tae Hun KIM, Myong Soo CHO, Yeon Ji KIM, Yong Seok KIM, Tae Kang KIM, Jae Ho HAN
  • CLOCK SIGNAL PROCESSOR AND NON-VOLATILE MEMORY DEVICE INCLUDING THE SAME
    Publication number: 20160104520
    Abstract: A clock signal processor includes a duty cycle corrector, a switch point calculator, and a multiplexer. The duty cycle corrector generates a second clock signal by modifying a duty cycle of a first clock signal. The switch point calculator activates a switch signal at an end of a latency period in which a read command is provided to a non-volatile memory device and an invalid data is read from the non-volatile memory device. The multiplexer outputs one of the first and second clock signals as a third clock signal based on the switch signal.
    Type: Application
    Filed: July 20, 2015
    Publication date: April 14, 2016
    Inventors: Kyoung-Tae Kang, Sang-Lok Kim, Dae-Hoon Na
  • Test apparatus and method of controlling the same
    Patent number: 9310387
    Abstract: A test apparatus, which may compare detection data of a detector with reference data and correct a positional error in the detector due to the failing of a motor, and a method of controlling the same are provided. The test apparatus includes a detector configured to irradiate light to a plurality of chambers of a reaction device and detect a detection target, a motor configured to move the detector such that light is irradiated to the plurality of chambers, and a controller configured to compare detection data of the detector regarding the reaction device with reference data, determine a positional error in the detector, and correct the positional error.
    Type: Grant
    Filed: April 11, 2014
    Date of Patent: April 12, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Se Do Gwon, Kyu Tae Kang
  • Input buffer for semiconductor memory device and flash memory device including the same
    Patent number: 9311973
    Abstract: An input buffer includes an amplifier circuit configured to amplify an input signal and output an amplified signal to a first output node. The input signal is amplified according to a first bias voltage set, at a bias node, to a first level based on a power supply voltage and a reference voltage. The input buffer includes an output circuit configured to receive and buffer the amplified signal and output an output signal to a second output node. The input buffer includes a dynamic bias voltage generator configured to change the first bias voltage to a second level in response to a transition of the output signal.
    Type: Grant
    Filed: December 2, 2014
    Date of Patent: April 12, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Kyoung-tae Kang
  • Method to determine presence of rotator and method to adjust optimal gain
    Patent number: 9305589
    Abstract: A rotation driving system and a method to determine the presence of a rotator on a turntable are provided. The rotation driving system includes an encoder to detect rotation information of a motor, and a controller to determine whether or not a rotator is present on a turntable and also, to adjust a gain of the motor according to moment of inertia of the rotator.
    Type: Grant
    Filed: July 18, 2011
    Date of Patent: April 5, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Kyu Tae Kang
  • SUPER JUNCTION SEMICONDUCTOR DEVICE
    Publication number: 20160020273
    Abstract: Provided is a super junction semiconductor device. The super junction semiconductor device includes a vertical pillar region located in an active region and horizontal pillar regions located in a termination region that are connected with each other while simultaneously not floating the entire pillar region in the termination region. Thus, a charge compensation difference, generated among pillar regions, is caused to be offset, although the length of the termination region is relatively short.
    Type: Application
    Filed: July 14, 2015
    Publication date: January 21, 2016
    Applicant: MAGNACHIP SEMICONDUCTOR, LTD.
    Inventors: Hyuk WOO, Dae Byung KIM, Chang Yong CHOI, Ki Tae KANG, Kwang Yeon JUN, Moon Soo CHO, Soon Tak KWON
  • PHOTOCATHODE COUPLED X-RAY TUBE
    Publication number: 20160005565
    Abstract: Provided is an X-ray tube including an anode, a target on the anode, a cathode disposed separate from the target and the anode and comprising an emitter providing an electron beam to the target, and a side wall disposed between the cathode and the anode, and surrounding the target and the emitter. The side wall reflects a light generated by collision of the electron beam with the target to the cathode, and electrically insulates the cathode from the anode.
    Type: Application
    Filed: January 26, 2015
    Publication date: January 7, 2016
    Inventors: Jun Tae KANG, Yoon-Ho SONG
  • LED LAMP
    Publication number: 20150354757
    Abstract: The present invention relates to an LED lamp having improved directivity, which includes: a substrate having light emitting sources mounted on the front surface thereof; an inner cover, which is disposed to cover the substrate and a space to the front of the substrate and which includes a penetration area allowing the penetration of light and a reflection area reflecting light, so that a part of the light emitted from the light emitting sources is reflected by the reflection area and directed toward the sides or the back of the substrate; and an outer cover which is disposed to cover the inner cover and a space to the outside of the inner cover and which allows light to penetrate therethrough.
    Type: Application
    Filed: January 22, 2014
    Publication date: December 10, 2015
    Inventors: Jin Wook Lee, Ki Tae Kang
  • METHOD AND APPARATUS FOR PROCESSING A TRANSMISSION SIGNAL IN COMMUNICATION SYSTEM
    Publication number: 20150333944
    Abstract: Disclosed are a method and apparatus for processing a transmission signal using a window function that changes a spectrum characteristic of a symbol. A transmission apparatus includes a symbol generator that generate a plurality of consecutive symbols, and a symbol windowing processor that is coupled with the symbol generator. The symbol windowing processor applies a first window function and a third window function that uses a difference between the first window and a second window, and changes a spectrum characteristic of each of the plurality of consecutive symbols, and processes neighboring symbols from among the plurality of consecutive symbols of which spectrum characteristics are changed, such that the symbols partially overlap one another.
    Type: Application
    Filed: May 14, 2015
    Publication date: November 19, 2015
    Inventors: Jung-Hwa BAE, In-Tae KANG, Hae-Dong YEON
  • Manufacturing method of CNT emitter with density controlled carbon nanotube
    Patent number: 9156686
    Abstract: Provided is a manufacturing method of a CNT emitter with density controlled CNT, comprising: (i) fabricating a CNT paste by dispersing a carbon nanotube (CNT) powder, two kinds or more of inorganic fillers which have a lower melting temperature than the CNT and different oxidation degrees of the CNT, and an organic binder in a solvent; (ii) coating the CNT paste on an electrode formed above a substrate; (iii) sintering the substrate coated with the CNT paste to selectively oxidize the CNT around one kind of inorganic filler among two kinds or more of the inorganic fillers; and (iv) treating the surface of the CNT paste so that the surface of the CNT paste is activated.
    Type: Grant
    Filed: May 30, 2012
    Date of Patent: October 13, 2015
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jin Woo Jeong, Jun Tae Kang, Yoon Ho Song, Jae Woo Kim
  • X-ray tube
    Patent number: 9153407
    Abstract: An X-ray tube is provided. The X-ray tube includes a first housing including an X-ray window formed therein, a second housing being rotatable about a rotational shaft installed within the first housing, an anode installed on the rotational shaft within the second housing and positioned in one side of the rotational shaft in an extending direction of the rotational shaft, an emitter installed on the rotational shaft within the second housing, positioned in the other side of the rotational shaft in the extending direction of the rotational shaft, and emitting electron beams, a lens unit installed between the anode and the emitter and focusing the electron beams emitted from the emitter to the anode, and an electron beam deflection unit installed on the rotational shaft to deflect an angle of electron beams moving toward the anode from the lens unit.
    Type: Grant
    Filed: December 6, 2013
    Date of Patent: October 6, 2015
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jin Woo Jeong, Yoon-Ho Song, Sungyoul Choi, Jun Tae Kang, Jae-woo Kim
  • NONVOLATILE MEMORY DEVICE AND METHOD OF OPERATING THE SAME
    Publication number: 20150270010
    Abstract: In a method of operating a nonvolatile memory device, an impedance calibration verifying operation is performed based on a data read command. The impedance calibration verifying operation ascertains whether an impedance calibration operation is normally performed for a data input/output (I/O) terminal of the nonvolatile memory device. A detection value is stored in a storage unit. The detection value indicates a result of the impedance calibration verifying operation. The detection value is output based on a first command received after the nonvolatile memory device receives the data read command. A data read operation or the impedance calibration operation is selectively performed based on the detection value.
    Type: Application
    Filed: January 12, 2015
    Publication date: September 24, 2015
    Inventor: KYOUNG-TAE KANG
  • Control method of diesel vehicle
    Patent number: 9140200
    Abstract: An idle throttle valve control method of a diesel vehicle, may include a first step of determining whether an idle entry condition of the vehicle may be satisfied, a second step of controlling a throttle valve based on an air amount map and controlling an exhaust gas recirculation (EGR) valve based on an EGR map, when the first step may be satisfied, a third step of determining whether an idle release condition may be satisfied during the second step, and a fourth step of determining whether an EGR return condition may be satisfied, when the idle release condition may be satisfied in the third step.
    Type: Grant
    Filed: December 8, 2011
    Date of Patent: September 22, 2015
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Heungseok Lee, Chang Kook Chae, Sukil Oh, Wan Soo Oh, Jin Hyun Kim, Koo Tae Kang, Kwang Min Won
  • Method for Manufacturing Bristles on Toothbrush and Toothbrush Using Same
    Publication number: 20150257525
    Abstract: A method for manufacturing bristles on a toothbrush and a toothbrush using the same are provided, in which the bristles on a toothbrush have a core-sheath double structure and various cross-sectional shapes, have uneven portions formed on a surface thereof by a tapering process while containing inorganic particles, and include inorganic or organic antimicrobial materials.
    Type: Application
    Filed: October 4, 2013
    Publication date: September 17, 2015
    Inventors: Ki-Tae Kang, Guihwan O, Yeon-Bok Kang
  • TEST APPARATUS AND CONTROL METHOD THEREOF
    Publication number: 20150244932
    Abstract: Disclosed herein are a test apparatus that photographs a home mark of a microfluidic apparatus by using a camera and determining a position of a home of the microfluidic apparatus by using the camera, and a control method thereof. The method of controlling a test apparatus includes photographing a microfluidic apparatus at a predetermined frame rate by using a camera of the test apparatus while the microfluidic apparatus is rotating at a predetermined speed, acquiring a capture image which includes a home mark of the microfluidic apparatus among a plurality of images acquired by the camera, and acquiring information which relates to an encoder of the test apparatus and which corresponds to the home mark of the capture image and determining a position of a home of the microfluidic apparatus based on the acquired information.
    Type: Application
    Filed: February 20, 2015
    Publication date: August 27, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyu Tae KANG, Se Do GWON
  • Thin film transistor substrate
    Patent number: 9111807
    Abstract: A thin film transistor substrate includes: pluralities of gate lines and data lines arranged to define a plurality of pixel regions, and a plurality of thin film transistors formed on the pixel regions in such a manner as to include first and second thin film transistors connected to the same gate line and the pixel regions adjacent to each other. Each of the first and second thin film transistors includes: a gate electrode connected to the gate line; a semiconductor layer formed on the gate line in an octagon shape; a source electrode connected to the data line; and a drain electrode formed in an opposite shape to the source electrode.
    Type: Grant
    Filed: November 19, 2013
    Date of Patent: August 18, 2015
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Hun Jang, Joon Young Yang, Gyu Tae Kang
  • X-ray tube and method of controlling X-ray focal spot using the same
    Patent number: 9099280
    Abstract: An X-ray tube is provided. The X-ray tube includes a cathode electrode which is disposed in one end of a vacuum container and includes an emitter emitting an electron; a gate electrode which is disposed in the vacuum container to be adjacent to the cathode electrode; an anode electrode which is disposed in the vacuum container of the other end of a direction in which the vacuum container extends and inclines with respect to the cathode electrode; and a focusing electrode which is disposed in the vacuum container along an inner circumference surface of the vacuum container between the gate electrode and the anode electrode. The focusing electrode has an opening of which a plan cross section has a maximum width and a minimum width different from each other.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: August 4, 2015
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jin Woo Jeong, Yoon-Ho Song, Sungyoul Choi, Jun Tae Kang, Jae-woo Kim