Patents by Inventor Myung Keun Yoo

Myung Keun Yoo 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: 10274243
    Abstract: A refrigerator of the present invention comprises: an evaporator; a shroud provided with a suction hole for sucking the air heat-exchanged with the evaporator; a fan motor unit provided to the shroud; a discharge panel provided with a discharge hole for discharging, to a storage chamber, the air flowing by the fan motor unit; and a door for opening and closing the storage chamber, wherein the shroud is provided with a fan motor unit provision part at the surface facing the discharge panel so as to provide the fan motor unit thereto, and the fan motor unit enables the air to flow at a position between the shroud and the discharge panel so as to minimize the passage resistance of the air, which is sucked through the suction hole, and minimize noise.
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: April 30, 2019
    Assignee: LG Electronics Inc.
    Inventors: Myung Keun Yoo, Ho Hyun Son, Hyun Sook Song
  • Publication number: 20180231297
    Abstract: A refrigerator of the present invention comprises: an evaporator; a shroud provided with a suction hole for sucking the air heat-exchanged with the evaporator; a fan motor unit provided to the shroud; a discharge panel provided with a discharge hole for discharging, to a storage chamber, the air flowing by the fan motor unit; and a door for opening and closing the storage chamber, wherein the shroud is provided with a fan motor unit provision part at the surface facing the discharge panel so as to provide the fan motor unit thereto, and the fan motor unit enables the air to flow at a position between the shroud and the discharge panel so as to minimize the passage resistance of the air, which is sucked through the suction hole, and minimize noise.
    Type: Application
    Filed: March 5, 2013
    Publication date: August 16, 2018
    Inventors: Myung Keun YOO, Ho Hyun SON, Hyun Sook SONG
  • Patent number: 9657980
    Abstract: The present invention relates to a motor driving apparatus and a refrigerator including the same. A motor driving apparatus according to an embodiment of the present invention comprises: a signal delay unit for delaying an input speed order signal; an inverter control unit for outputting an inverter switching control signal, on the basis of the speed order signal delayed by the signal delay unit; and an inverter for converting an input operation direct current power into a predetermined alternating current power, on the basis of a switching operation according to the inverter switching control signal, and driving a motor using the converted alternating current power. Therefore, it is possible to prevent starting failure and reduce noise.
    Type: Grant
    Filed: April 11, 2013
    Date of Patent: May 23, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Hyun Sook Song, Ho Hyun Son, Myung Keun Yoo
  • Publication number: 20160061506
    Abstract: The present invention relates to a motor driving apparatus and a refrigerator including the same. A motor driving apparatus according to an embodiment of the present invention comprises: a signal delay unit for delaying an input speed order signal; an inverter control unit for outputting an inverter switching control signal, on the basis of the speed order signal delayed by the signal delay unit; and an inverter for converting an input operation direct current power into a predetermined alternating current power, on the basis of a switching operation according to the inverter switching control signal, and driving a motor using the converted alternating current power. Therefore, it is possible to prevent starting failure and reduce noise.
    Type: Application
    Filed: April 11, 2013
    Publication date: March 3, 2016
    Inventors: Hyun Sook SONG, Ho Hyun SON, Myung Keun YOO
  • Patent number: 8573954
    Abstract: A fan assembly including a rotation shaft, a permanent magnet having a receiving space therein and rotatable around a central axis of the rotation shaft, a fan including a hub having a receiving space therein with one side open and disposed outside the permanent magnet, the fan being rotatable around the central axis of the rotation shaft, a stator disposed inside the permanent magnet, and a blocking portion disposed at the open side of the hub in an axial direction, the combination configured to block an introduction of foreign materials into the fan assembly and to reduce the size of the fan assembly.
    Type: Grant
    Filed: December 17, 2008
    Date of Patent: November 5, 2013
    Assignee: LG Electronics Inc.
    Inventors: Myung-Keun Yoo, Hyoun-Jeong Shin
  • Patent number: 8562087
    Abstract: A refrigerator and a method for controlling such a refrigerator is provided in which a receiving box may be automatically drawn in and out together with a door that forms a front face thereof in response to a command input at an input unit, thereby increasing user convenience.
    Type: Grant
    Filed: March 16, 2010
    Date of Patent: October 22, 2013
    Assignee: LG Electronics Inc.
    Inventors: Yong Hwan Eom, Myung Keun Yoo, Hyoun Jeong Shin, Ok Sun Yu, Young Jin Kim, Seung Do Han
  • Patent number: 8497644
    Abstract: A refrigerator and a method for controlling the same are provided. With the refrigerator and the method for controlling the refrigerator, a receiving box may be automatically drawn in and out together with a door when a user operates an input device that inputs door drawing in and out instructions, thereby increasing use convenience of children and older people.
    Type: Grant
    Filed: March 18, 2010
    Date of Patent: July 30, 2013
    Assignee: LG Electronics Inc.
    Inventors: Yong Hwan Eom, Myung Keun Yoo, Hyoun Jeong Shin, Ok Sun Yu, Young Jin Kim, Seung Do Han
  • Patent number: 8476858
    Abstract: A refrigerator and a method for controlling the same are provided. In this refrigerator and control method, a receiving box may be automatically drawn in and out together with a door based on a movement command received at an input unit, thus enhancing user convenience and satisfaction.
    Type: Grant
    Filed: March 16, 2010
    Date of Patent: July 2, 2013
    Assignee: LG Electronics Inc.
    Inventors: Yong Hwan Eom, Myung Keun Yoo, Hyoun Jeong Shin, Ok Sun Yu, Young Jin Kim, Seung Do Han
  • Patent number: 8395334
    Abstract: A refrigerator includes a drawer having a door and a receiving box attached thereto. The drawer may be automatically moved in forward and backward directions. A supply of standby voltage may be intercepted by a drawer driving mechanism when the door is closed so as to reduce power consumption and improve response time to drawer opening and closing commands.
    Type: Grant
    Filed: March 16, 2010
    Date of Patent: March 12, 2013
    Assignee: LG Electronics Inc.
    Inventors: Yong Hwan Eom, Myung Keun Yoo, Hyoun Jeong Shin, Ok Sun Yu, Young Jin Kim, Seung Do Han
  • Patent number: 8376709
    Abstract: Disclosed are an impeller of a suction-enforced type, and a fan-motor for a vacuum cleaner having the same. The fan-motor having the impeller of the suction-enforced type includes: a motor housing; a motor installed in the motor housing; an impeller casing coupled to the upper portion of the motor housing; the impeller of the suction-enforced type installed in the impeller casing and connected to a rotation shaft of the motor; and a guide vane installed at the lower portion of the impeller of the suction-enforced type, for guiding the air sucked into the impeller casing to the motor side. As a result, suction efficiency of the impeller is improved, and thus efficiency of the fan-motor for the vacuum cleaner is improved.
    Type: Grant
    Filed: October 20, 2006
    Date of Patent: February 19, 2013
    Assignee: LG Electronics Inc.
    Inventors: Myung-Keun Yoo, Jun-Young Lim
  • Patent number: 8337155
    Abstract: A fan assembly is provided. The fan assembly includes a fan, and a shroud having a motor mounting portion on which a fan motor of the fan is mounted. One or more coupling units are provided at a lower side of the shroud, and on a planar surface of an apparatus, and one or more vibration preventing members are interposed between the coupling units. Because the fan and the motor mounted thereto cause vibration and noise to the fan assembly in the apparatus, the vibration preventing members are interposed between the coupling units of the shroud and the apparatus to reduce the amount of vibration and noise transmitted from the fan and the motor to the apparatus.
    Type: Grant
    Filed: December 3, 2008
    Date of Patent: December 25, 2012
    Assignee: LG Electronics Inc.
    Inventors: Myung-Keun Yoo, Hyoun-Jeong Shin
  • Patent number: 8274251
    Abstract: A system and method for driving a drawer of a refrigerator and a refrigerator employing this system is provided. This system and method allows the drawer to substantially immediately and automatically stop when the drawer encounters an obstacle. This type of automatic control of the drawer may enhance the safe operation of the drawer, prevent injuries to users, and prevent overload and subsequent malfunction of a drive motor used to move the drawer.
    Type: Grant
    Filed: February 23, 2009
    Date of Patent: September 25, 2012
    Assignee: LG Electronics Inc.
    Inventors: Myung Keun Yoo, Yong Hwan Eom, Hyoun Jeong Shin
  • Patent number: 8217613
    Abstract: A system and method for driving a drawer of a refrigerator and a refrigerator employing this system is provided. This system and method allows the drawer to substantially immediately and automatically stop when the drawer encounters an obstacle. This type of automatic control of the drawer may enhance the safe operation of the drawer, prevent injuries to users, and prevent overload and subsequent malfunction of a drive motor used to move the drawer.
    Type: Grant
    Filed: July 28, 2009
    Date of Patent: July 10, 2012
    Assignee: LG Electronics Inc.
    Inventors: Myung Keun Yoo, Yong Hwan Eom, Hyoun Jeong Shin
  • Patent number: 8167582
    Abstract: A fan assembly. The fan assembly includes a rotation shaft, a rotor coupled to the rotation shaft, a stator disposed inside the rotor, and a fan including a hub having a receiving space therein, and a plurality of blades disposed at a circumference of the hub, and coupled to the rotation shaft such that the rotor is spaced from an inner surface of the hub respectively in axial and radial directions, thereby preventing a transfer of vibration of a permanent magnet to the outside, and thus reducing the generation of noise due to the vibration.
    Type: Grant
    Filed: December 17, 2008
    Date of Patent: May 1, 2012
    Assignee: LG Electronics Inc.
    Inventors: Myung-Keun Yoo, Hyoun-Jeong Shin
  • Patent number: 8146199
    Abstract: A vacuum cleaner set includes a vacuum cleaner and a cleaner mount. The vacuum cleaner includes a main body that is detachably mounted on a mount having a cord reel, a motor and a battery that are provided in the main body, an AC power source that is provided in the main body and connected to a power outlet by the cord reel, a charging device receiving power from the AC power source and charging the battery, and a control unit selecting one of power output from the battery and power output from the AC power source.
    Type: Grant
    Filed: October 2, 2007
    Date of Patent: April 3, 2012
    Assignee: LG Electronics Inc.
    Inventors: Myung Keun Yoo, Sang Young Kim, Kwang Woon Ahn, Hyoun Jeong Shin
  • Patent number: 8148932
    Abstract: A system and method for driving a drawer of a refrigerator are provided. This system allows a drawer to be automatically withdrawn from and/or inserted into a main body of the refrigerator. This system also allows a drawer which has been stopped during the withdrawal process to be further withdrawn from the main body so as to complete action on a withdrawal command, or to be re-inserted into the main body, so as to reduce cool air loss.
    Type: Grant
    Filed: February 23, 2009
    Date of Patent: April 3, 2012
    Assignee: LG Electronics Inc.
    Inventors: Myung Keun Yoo, Yong Hwan Eom, Ok Sun Yu, Hyoun Jeong Shin
  • Patent number: 8142160
    Abstract: Disclosed is a high speed type impeller, including: a body having a shaft coupling hole into which a rotation shaft of a motor is coupled, the outer circumference of the body being widened from the top to bottom end in the insertion direction of the rotation shaft to form a bent surface, a step portion shadowed in the radial direction being formed on the top end of the body; a plurality of blades installed on the bent surface of the body to be bent at a predetermined angle to the rotation shaft direction; and an upper reinforcing ring installed at the step portion of the body. Even through the impeller is made of a low cost material, the reinforcing ring reinforces the weak portion of the impeller to improve durability. Reliability of the impeller is attained with high economical efficiency.
    Type: Grant
    Filed: October 24, 2006
    Date of Patent: March 27, 2012
    Assignee: LG Electronics Inc.
    Inventors: Myung-Keun Yoo, Jun-Young Lim
  • Patent number: 8076875
    Abstract: The present invention relates to a switched reluctance motor and a connection method for a sensor shutter thereof. The switched reluctance motor in accordance with the present invention includes a stator; a rotor rotating with respect to the stator centering around a rotational shaft; and a sensor shutter having a sensing part through which a light can be passed and connected to an end portion of the rotational shaft, and a stopping ring is connected to the end portion of the rotational shaft so as to prevent the sensor shutter from being separated. Accordingly, the sensor shutter can be quickly and easily connected and the length of the rotational shaft can be decreased.
    Type: Grant
    Filed: September 19, 2007
    Date of Patent: December 13, 2011
    Assignee: LG Electronics Inc.
    Inventors: Myung-Keun Yoo, Jun-Young Lim
  • Patent number: 8074468
    Abstract: A movement structure for a drawer of a refrigerator is provided that allows a storage box to be automatically withdrawn from or inserted into a main body of the refrigerator. The structure may include a rolling mechanism that rolls along a guide mechanism coupled to the storage box to facilitate and guide the movement of the storage box and maintain alignment relative to the main body of the refrigerator. A drive motor may provide a rotational force to the rolling mechanism to automate the movement of the storage box.
    Type: Grant
    Filed: February 23, 2009
    Date of Patent: December 13, 2011
    Assignee: LG Electronics Inc.
    Inventors: Myung Keun Yoo, Yong Hwan Eom, Ok Sun Yu, Hyoun Jeong Shin
  • Patent number: RE49754
    Abstract: A movement structure for a drawer of a refrigerator is provided that allows a storage box to be automatically withdrawn from or inserted into a main body of the refrigerator. The structure may include a rolling mechanism that rolls along a guide mechanism coupled to the storage box to facilitate and guide the movement of the storage box and maintain alignment relative to the main body of the refrigerator. A drive motor may provide a rotational force to the rolling mechanism to automate the movement of the storage box.
    Type: Grant
    Filed: March 19, 2021
    Date of Patent: December 12, 2023
    Assignee: LG Electronics Inc.
    Inventors: Myung Keun Yoo, Yong Hwan Eom, Ok Sun Yu, Hyoun Jeong Shin