Patents by Inventor Chul Ryu

Chul Ryu 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: 20180128538
    Abstract: A refrigerator which allows a height of a shelf to be adjusted without detaching the shelf from a hanger. The refrigerator includes a main body, a storage compartment provided in the main body, a shelf hanger provided at an inner side of the storage compartment, a moving unit coupled to the shelf hanger to be movable in a vertical direction, and a shelf supported by the moving unit. The shelf includes a first shelf detachably coupled to the moving unit, a second shelf slidably coupled to the first shelf, a latch device configured to allow the second shelf to be fixed to or unfixed from the first shelf, and a first elastic member providing an elastic force to allow the second shelf to be withdrawn from the first shelf.
    Type: Application
    Filed: November 3, 2017
    Publication date: May 10, 2018
    Inventors: Myoung Jin Jang, Sang Chul Ryu, Jin Kyu Seon, Jae Bok Lee
  • Publication number: 20180116399
    Abstract: A storage container having a storage space, includes a partition member configured to divide the storage space of the storage container, the partition member having a first partition member movable in a first direction in the storage space, and a second partition member movable in a second direction in the storage space while crossing the first partition member, and a moving guide provided in an intersection between the first partition member and the second partition member and configured to guide a movement of the first partition member and a movement of the second partition member and to fix the first partition member and the second partition member so as not to move, the storage container may be configured to move a partition fixing portion disposed in the moving guide in a direction to contact the partition member according to the rotation of the upper portion of the moving guide.
    Type: Application
    Filed: October 31, 2017
    Publication date: May 3, 2018
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae Bok LEE, Myoung Jin JANG, Sang Chul RYU, Kyoung-Sun PARK, Sang Gyu JUNG, In-Sung HWANG
  • Publication number: 20180024927
    Abstract: A data storage device and a data processing system having the same are disclosed. The data storage device includes a nonvolatile memory and a controller, coupled to the nonvolatile memory, configured to receive first and second commands generated by a host and control an operation of the nonvolatile memory in response to the first command. The controller includes a core configured to receive and process the first command, a trace circuit corresponding to the core and configured to generate and output first data, based on pieces of information generated while the core processes the first command, and a trace controller configured to control output of the first data and second data differing from the first data, based on a result of performing at least one authentication control operation corresponding to the second command.
    Type: Application
    Filed: July 20, 2017
    Publication date: January 25, 2018
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Seung Chul RYU, Bum Seok YU, Chan Ho YOON
  • Patent number: 9831772
    Abstract: A system includes an inductance, a sensing circuit, a filter circuit, and a switch. The inductance includes a first terminal connected to (i) an output of a power supply supplying a DC voltage and (ii) a load, and a second terminal connected to a node. The sensing circuit is configured to sense voltage at the node. The filter circuit is configured to filter the voltage at the node, and output a filtered voltage. The switch is configured to communicate with the node, and control current through the load based on the filtered voltage.
    Type: Grant
    Filed: March 11, 2015
    Date of Patent: November 28, 2017
    Assignee: Marvell International LTD.
    Inventors: Jinho Choi, Young Chul Ryu, Wanfeng Zhang, Chang Qian
  • Patent number: 9696398
    Abstract: Provided is a magnetic resonance imaging and positron emission tomography (MRI-PET) system. The MRI-PET system includes a PET unit and a radiofrequency (RF) coil disposed within a gradient coil assembly.
    Type: Grant
    Filed: November 5, 2013
    Date of Patent: July 4, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yeun-chul Ryu, Tae-yong Song, Young-beom Kim, Jae-mock Yi, Seong-deok Lee
  • Patent number: 9696395
    Abstract: Provided are apparatuses and methods for magnetic resonance imaging (MRI). The magnetic resonance imaging (MRI) method includes applying radio frequency (RF) pulses to an object in a magnetic field, the RF pulses having different frequency bands for each of at least two types of nucleus in the object; applying predetermined pulse sequences for each type of nucleus to the object; receiving magnetic resonance signals emitted by each nucleus in response to the RF pulses and the predetermined pulse sequences; and generating an image of the object based on the received magnetic resonance signals.
    Type: Grant
    Filed: October 28, 2013
    Date of Patent: July 4, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-beom Kim, Yeun-chul Ryu, Jae-mock Yi
  • Patent number: 9692316
    Abstract: Power converters having bleeder circuits are disclosed. For example, in an embodiment, a power converter can include a controllable TRIAC in series with a rectifier that together produces a controllable rectified voltage at a first node, a first inductor having a first end and a second end, the first inductor being electrically connected to the first node at the first end, and electrically connected to a first power lead of a transistor and an anode of a diode at the second end, a load capacitor having a first end and a second end, the load capacitor being electrically coupled to the first node at the first end of the load capacitor, and electrically coupled to a cathode of the diode at the second end the load capacitor, control circuitry to control switching of the transistor, and a bleeder circuit coupled to the second end of the inductor, the bleeder circuit including a resistor in series with a coupling capacitor.
    Type: Grant
    Filed: July 14, 2014
    Date of Patent: June 27, 2017
    Assignee: Marvell International Ltd.
    Inventors: Young Chul Ryu, Chang Qian, Wanfeng Zhang
  • Publication number: 20170120209
    Abstract: Disclosed herein is a carbonated water producing apparatus which guides a replacement of a cylinder using sound generated when carbon dioxide is supplied from the cylinder, and a refrigerator having the same.
    Type: Application
    Filed: November 3, 2016
    Publication date: May 4, 2017
    Inventors: Dae Sung Kim, Sang Chul Ryu
  • Patent number: 9625555
    Abstract: A method of shimming a magnetic field, includes applying radio frequency (RF) signals to an object, using a transceiver coil, and calibrating phase offsets of magnetic resonance signals acquired from the object through a receiver coil. The method further includes generating RF signals to be applied through the transceiver coil based on magnetic resonance signals acquired from the object through the transceiver coil and the calibrated magnetic resonance signals.
    Type: Grant
    Filed: August 21, 2013
    Date of Patent: April 18, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yeun-chul Ryu, Young-beom Kim, Seong-deok Lee, Jae-mock Yi
  • Patent number: 9612302
    Abstract: Provided is a magnetic resonance imaging (MRI) apparatus. The MRI apparatus includes a magnet configured to generate a magnetic field; a magnetic field coil configured to generate a gradient magnetic field and the magnetic field coil is disposed inside the magnet; and a radio-frequency (RF) coil unit comprising RF coil elements and the RF coil unit is disposed inside the magnetic field coil.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: April 4, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yeun-chul Ryu, Jae-mock Yi
  • Patent number: 9373429
    Abstract: According to an aspect of an exemplary embodiment, there is provided a method of obtaining graphene, the method comprising: preparing a graphene forming structure of which a first graphene is formed on one surface and a second graphene is formed on another surface, and that comprises at least one metal catalyst member; disposing a first carrier and a second carrier on the first graphene and the second graphene, respectively; and removing the metal catalyst member by applying an etchant to a side surface of the graphene forming structure while winding up the first carrier and the second carrier by respectively rotating a pair of rolls formed to face each other.
    Type: Grant
    Filed: October 18, 2012
    Date of Patent: June 21, 2016
    Assignee: Hanwha Techwin Co., Ltd.
    Inventors: Na-young Kim, Jae-Chul Ryu
  • Patent number: 9308677
    Abstract: In a refrigerator door in which a decoration member is mounted to a door frame using a foam material, the foam material fills a space formed between the decoration member mounted to a front side of the door frame and a rear panel mounted to a rear side of the door frame. Accordingly, the decoration member can be fixed to the door frame through direct contact with the foam material.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: April 12, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jeong Wook Lee, Sang Chul Ryu
  • Patent number: 9179523
    Abstract: A controller, which may be a controller for solid-state lighting, includes a transformer, and a control circuit having a bias voltage input. The control circuit activates when voltage applied to the bias voltage input reaches a threshold. The transformer has a feedback output to the bias voltage input. The controller also has a bias voltage circuit including a resonant circuit providing a resonant current, and a bias capacitor charged by the resonant current, applying start-up bias voltage to the bias voltage input. The controller further has a cutoff to shut down the resonant current when the transformer feedback output is above the threshold. A method of operating the a controller includes providing a resonant current to charge a start-up bias capacitor. The method also includes automatically cutting off the resonant current when the transformer feedback output is above the threshold. This may be determined by monitoring the bias voltage input.
    Type: Grant
    Filed: September 4, 2014
    Date of Patent: November 3, 2015
    Assignee: Marvell International Ltd.
    Inventors: Young Chul Ryu, Jinho Choi, Wanfeng Zhang, Chang Qian
  • Patent number: 9116268
    Abstract: A backlight unit according to an embodiment includes: a light guide plate; a light emitting diode (LED) assembly supplying a light to the light guide plate; and a reflecting plate under the light guide plate, wherein the LED assembly includes: an LED printed circuit board (PCB) disposed at a side of the light guide plate; a plurality of LED chips over the LED PCB, the plurality of LED chips spaced apart from each other; a plurality of first lead frames electrically connecting the LED PCB and the plurality of LED chips; and an LED housing surrounding the plurality of LED chips and the plurality of first lead frames.
    Type: Grant
    Filed: December 2, 2013
    Date of Patent: August 25, 2015
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Hye-In Yun, Koo-Hwa Lee, Sang-Chul Ryu, Jun-Young Park
  • Publication number: 20150192347
    Abstract: A refrigerator reduces a quantity of deformation of a body by improving rigidity of the body using a reinforcement structure. The refrigerator may include an electric apparatus box in which electric apparatus components for controlling an operation of the refrigerator are accommodated. Electric apparatus components may be disposed in a hinge cover which is disposed in the front of the refrigerator to improve spatial utility and a reinforcement plate formed of a steel material may be disposed in the electric apparatus box to prevent a fire from spreading. A heating pipe fixed to a front edge of an inner case of the refrigerator prevents dew condensation in an outer case of the refrigerator. The heating pipe is mounted on a fixing groove formed in a mounting portion provided on the front edge of the inner case. The heating pipe is fixed to the mounting portion using a clip.
    Type: Application
    Filed: December 11, 2014
    Publication date: July 9, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byoung Jae CHO, Sang Chul Ryu, Sang Gyu Jung
  • Publication number: 20150189255
    Abstract: A stereo camera is provided. A stereo camera according to an embodiment of the invention includes a first camera, which includes an image sensor of red, green, and blue color channels, and a second camera, which includes an image sensor that has at least some of the channels from at least one of red, green, and blue color channels replaced with infrared (IR) channels.
    Type: Application
    Filed: December 30, 2014
    Publication date: July 2, 2015
    Inventors: Kwang-Hoon SOHN, Seung Chul RYU, Seung Ryong KIM, Jun Hyung KIM
  • Publication number: 20140246401
    Abstract: According to an aspect of an exemplary embodiment, there is provided a method of obtaining graphene, the method comprising: preparing a graphene forming structure of which a first graphene is formed on one surface and a second graphene is formed on another surface, and that comprises at least one metal catalyst member; disposing a first carrier and a second carrier on the first graphene and the second graphene, respectively; and removing the metal catalyst member by applying an etchant to a side surface of the graphene forming structure while winding up the first carrier and the second carrier by respectively rotating a pair of rolls formed to face each other.
    Type: Application
    Filed: October 18, 2012
    Publication date: September 4, 2014
    Applicant: SAMSUNG TECHWIN CO., LTD.
    Inventors: Na-young Kim, Jae-Chul Ryu
  • Publication number: 20140239952
    Abstract: Provided is a magnetic resonance imaging (MRI) apparatus. The MRI apparatus includes a magnet configured to generate a magnetic field; a magnetic field coil configured to generate a gradient magnetic field and the magnetic field coil is disposed inside the magnet; and a radio-frequency (RF) coil unit comprising RF coil elements and the RF coil unit is disposed inside the magnetic field coil.
    Type: Application
    Filed: December 17, 2013
    Publication date: August 28, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yeun-chul RYU, Jae-mock YI
  • Publication number: 20140232392
    Abstract: A method of shimming a magnetic field, includes applying radio frequency (RF) signals to an object, using a transceiver coil, and calibrating phase offsets of magnetic resonance signals acquired from the object through a receiver coil. The method further includes generating RF signals to be applied through the transceiver coil based on magnetic resonance signals acquired from the object through the transceiver coil and the calibrated magnetic resonance signals.
    Type: Application
    Filed: August 21, 2013
    Publication date: August 21, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Yeun-chul RYU, Young-beom KIM, Seong-deok LEE, Jae-mock YI
  • Publication number: 20140218033
    Abstract: A magnetic resonance imaging (MRI) system includes a main magnet configured to generate a static magnetic field, a gradient coil configured to generate a gradient magnetic field, and a radio frequency (RF) coil including a plurality of RF coils corresponding to volumes representing target regions of a subject.
    Type: Application
    Filed: February 3, 2014
    Publication date: August 7, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yeun-chul Ryu, Young-beom Kim, Jae-Mock Yi