Patents by Inventor Chan Son

Chan Son 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: 11333565
    Abstract: An embodiment may provide a sensing device comprising: a rotor; a stator disposed outside the rotor; and a sensor module disposed outside the stator, wherein the rotor includes a rotor holder, and a magnet and a sleeve which are coupled to the rotor holder, wherein the magnet includes a first body and a first protrusion protruding in an axis direction from the first body, the sleeve includes a second body and a second protrusion protruding outward from the second body, and the rotor holder includes a first groove in which the first protrusion is disposed.
    Type: Grant
    Filed: November 12, 2018
    Date of Patent: May 17, 2022
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Ho Chan Son, Se Ho Kim
  • Publication number: 20220130612
    Abstract: A multilayer capacitor includes a body including a multilayer structure in which a plurality of dielectric layers are stacked, and further including a plurality of internal electrodes having a dielectric layer interposed therebetween and external electrodes disposed on external surfaces of the body and connected to the internal electrodes. The body further includes an active portion in which the plurality of internal electrodes are located to form capacitance and a side margin portion covering a first surface and a second surface of the active portion opposing each other. An average grain size of a dielectric layer included in the active portion is different from an average grain size of a dielectric layer included in the margin portion. The side margin portion includes an extending portion extending between the external electrodes and the internal electrodes to cover a portion of the internal electrodes.
    Type: Application
    Filed: April 5, 2021
    Publication date: April 28, 2022
    Inventors: Jong Ho LEE, Chang Ho SEO, Eun Jung LEE, Myung Chan SON, Jung Tae PARK, Chang Soo PARK, Min Woo KIM
  • Publication number: 20220115181
    Abstract: A multilayer capacitor includes a body including dielectric layers and internal electrodes and external electrodes disposed on an external surface of the body and connected to the internal electrodes. The body includes a first surface and a second surface to which the internal electrodes are exposed, the first surface and the second surface opposing each other in a first direction, a third surface and a fourth surface opposing each other in a second direction which is a direction in which the dielectric layers are stacked, and a fifth surface and a sixth surface opposing each other in a third direction. At least one of the internal electrodes include a first bottleneck structure having a first directional length of a third-directional outer region smaller than an inner region thereof and a second bottleneck structure having a third directional length of a first directional outer region smaller than an inner region thereof.
    Type: Application
    Filed: March 18, 2021
    Publication date: April 14, 2022
    Inventors: Jong Ho Lee, Myung Chan Son, Sim Chung Kang, Eun Jin Shim, Sun Hwa Kim, Byung Soo Kim
  • Publication number: 20220033495
    Abstract: The present specification provides an antibody for pure isolation of vascular endothelial cells and a preparation method thereof, the antibody comprising: a heavy chain variable domain and a light chain variable domain which specifically bind to an extracellular matrix domain of PECAM1 having an amino acid sequence of SEQ ID NO: 1; or a heavy chain variable domain and a light chain variable domain which specifically bind to an extracellular matrix domain of CDH5 having an amino acid sequence of SEQ ID NO: 2.
    Type: Application
    Filed: August 20, 2019
    Publication date: February 3, 2022
    Applicant: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY
    Inventors: Young Sup YOON, Shin Jeong LEE, Dong Chan SON
  • Patent number: 11214570
    Abstract: Provided is a novel pyrrolopyridine compound represented by Chemical Formula I, a racemate or a stereoisomer thereof, or a pharmaceutically acceptable salt thereof; and to a method for preparing the same. A compound represented by Chemical Formula I shows high selectivity and antiviral activity against human immunodeficiency virus (HIV), with low toxicity; therefore, it is useful as a therapeutic agent for viral infection, in particular, HIV infection.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: January 4, 2022
    Assignee: ST PHARM CO., LTD.
    Inventors: Bong Jin Kim, Ill Young Lee, Jae Hak Kim, Hong Suk Shin, Jong Chan Son, Chong-Kyo Lee, Kyungjin Kim, Uk-Il Kim, Hwa Jung Nam
  • Publication number: 20210239550
    Abstract: An embodiment relates to a sensing device comprising: a housing; a stator disposed within the housing; and a rotor disposed within the stator, wherein the stator comprises a body and a stator tooth coupled to the body, the housing comprises a first surface corresponding to a bottom surface of the stator tooth, and the first surface comprises a curved surface protruding toward the stator tooth. Accordingly, noise can be reduced by reducing the amount of contact between the stator and the housing.
    Type: Application
    Filed: December 21, 2018
    Publication date: August 5, 2021
    Applicant: LG INNOTEK CO., LTD.
    Inventors: Su Hyoung LEE, Ho Chan SON
  • Publication number: 20210016828
    Abstract: The present invention may provide a torque sensor comprising, a rotor, a stator disposed outside the rotor; a sensor assembly configured to measure a magnetic field generated between the rotor and the stator; and a housing, the rotor and the stator are disposed outside the housing, the sensor assembly is disposed inside the housing, wherein the housing includes a protrusion which faces the stator, wherein the stator includes a groove, wherein the protrusion is disposed in the groove.
    Type: Application
    Filed: September 24, 2020
    Publication date: January 21, 2021
    Applicant: LG INNOTEK CO., LTD.
    Inventors: Jong Yeop YANG, Ho Chan SON, Ye Won KWON
  • Publication number: 20200378795
    Abstract: The present invention provides a sensor device comprising a rotor, a stator disposed outside the rotor and a sensor module disposed outside the stator, wherein the rotor includes a sleeve and a magnet coupled to the sleeve, the magnet is disposed inside the sleeve, and the sleeve includes a fixing part which protrudes from an end of the sleeve and is in contact with the magnet, wherein the sleeve includes a second body, and a third body, wherein the second body is disposed to cover an upper surface of the magnet, the third body is disposed to cover an outer circumferential surface of the magnet, wherein the magnet is disposed between the shaft and the third body, thereby providing an advantageous effect of increasing a coupling force between the magnet of the rotor and a yoke.
    Type: Application
    Filed: August 20, 2020
    Publication date: December 3, 2020
    Inventor: Ho Chan SON
  • Publication number: 20200377498
    Abstract: Provided is a novel pyrrolopyridine compound represented by Chemical Formula I, a racemate or a stereoisomer thereof, or a pharmaceutically acceptable salt thereof; and to a method for preparing the same. A compound represented by Chemical Formula I shows high selectivity and antiviral activity against human immunodeficiency virus (HIV), with low toxicity; therefore, it is useful as a therapeutic agent for viral infection, in particular, HIV infection.
    Type: Application
    Filed: March 24, 2017
    Publication date: December 3, 2020
    Applicant: ST PHARM CO., LTD.
    Inventors: Bong Jin KIM, Ill Young LEE, Jae Hak KIM, Hong Suk SHIN, Jong Chan SON, Chong-Kyo LEE, Kyungjin KIM, Uk-Il KIM, Hwa Jung NAM
  • Publication number: 20200348196
    Abstract: An embodiment may provide a sensing device comprising: a rotor; a stator disposed outside the rotor; and a sensor module disposed outside the stator, wherein the rotor includes a rotor holder, and a magnet and a sleeve which are coupled to the rotor holder, wherein the magnet includes a first body and a first protrusion protruding in an axis direction from the first body, the sleeve includes a second body and a second protrusion protruding outward from the second body, and the rotor holder includes a first groove in which the first protrusion is disposed.
    Type: Application
    Filed: November 12, 2018
    Publication date: November 5, 2020
    Applicant: LG INNOTEK CO., LTD.
    Inventors: Ho Chan SON, Se Ho KIM
  • Patent number: 10814909
    Abstract: The present invention may provide a torque sensor including: a rotor; a stator disposed outside the rotor; a sensor assembly configured to measure a magnetic field generated between the rotor and the stator, and a housing; the rotor and the stator are disposed outside the housing, the sensor assembly is disposed inside the housing and includes an alignment means configured to align a position of the housing with a position of the stator in a direction of an axis of the rotor, and the alignment means is disposed on at least one of the housing and the stator.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: October 27, 2020
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Jong Yeop Yang, Ho Chan Son, Ye Won Kwon
  • Publication number: 20200313586
    Abstract: A method of controlling an interior permanent magnet (IPM) motor includes receiving a motor torque command, and selecting a nominal d-axis current and a nominal q-axis current stored in a first lookup table. The nominal d-axis current and the nominal q-axis current correspond with a predetermined efficiency of the IPM motor at a nominal temperature and are based on at least the motor torque command and magnetic flux at a nominal temperature of the IPM motor. A d-axis adjustment current and a q-axis adjustment current are then selected from a stored second lookup table. The adjustment currents correspond with the predetermined efficiency of the IPM motor and are based at least on the magnetic flux and an operating temperature of the IPM motor. A corrected d-axis current and a corrected q-axis current are commanded. The corrected currents are the sum of the respective nominal current and adjustment current.
    Type: Application
    Filed: March 26, 2019
    Publication date: October 1, 2020
    Applicant: GM Global Technology Operations LLC
    Inventors: Suresh Gopalakrishnan, Anno Yoo, Wesley G. Zanardelli, Yo Chan Son
  • Patent number: 10782151
    Abstract: The present invention provides a sensor device including a rotor, a stator disposed outside the rotor, and a sensor module disposed outside the stator, wherein the rotor includes a sleeve and a magnet coupled to the sleeve, the magnet is disposed inside the sleeve, and the sleeve includes a fixing part which protrudes from a lower end of the sleeve and is in contact with the magnet, thereby providing an advantageous effect of increasing a coupling force between the magnet of the rotor and a yoke.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: September 22, 2020
    Assignee: LG INNOTEK CO., LTD.
    Inventor: Ho Chan Son
  • Publication number: 20200228049
    Abstract: An electric motor control system of a vehicle includes a temperature module configured to, based on a motor torque request, (i) determine a plurality of stator current values based on a plurality of temperatures and (ii) generate a maximum stator current based on a lowest value of the plurality of stator current values. A torque module configured to, based on the maximum stator current, the motor torque request, and a maximum allowable flux, generate a maximum torque output. A current command module configured to, based on a speed of a rotor of the electric motor and the maximum torque output, generate a d-axis current adjustment and a q-axis current adjustment. A switching control module configured to, based on the d- and q-axis current adjustments, control switching of an inverter module and apply power to stator windings of the electric motor from an energy storage device.
    Type: Application
    Filed: January 11, 2019
    Publication date: July 16, 2020
    Applicant: GM Global Technology Operations LLC
    Inventors: Anno Yoo, Yo Chan Son, Dwarakanath V. Simili
  • Patent number: 10700632
    Abstract: An electric motor control system of a vehicle includes a temperature module configured to, based on a motor torque request, (i) determine a plurality of stator current values based on a plurality of temperatures and (ii) generate a maximum stator current based on a lowest value of the plurality of stator current values. A torque module configured to, based on the maximum stator current, the motor torque request, and a maximum allowable flux, generate a maximum torque output. A current command module configured to, based on a speed of a rotor of the electric motor and the maximum torque output, generate a d-axis current adjustment and a q-axis current adjustment. A switching control module configured to, based on the B- and q-axis current adjustments, control switching of an inverter module and apply power to stator windings of the electric motor from an energy storage device.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: June 30, 2020
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Anno Yoo, Yo Chan Son, Dwarakanath V. Simili
  • Publication number: 20200127588
    Abstract: A control system for controlling operation of an asymmetric motor to operate as a symmetric motor is provided and includes first and second summers, a proportional flux error-to-voltage converter, a complex integration module, and a control module. The first summer determines a flux error for d and q axes of the asymmetric motor based on a commanded flux value and a feedback flux value. The proportional flux error-to-voltage converter converts the flux error to a proportional voltage term. The complex integration module, based on a time constant, a synchronous angular velocity, and a sampling period, calculates an integral voltage term. The second summer sums the proportional voltage term, the integral voltage term, and a damping resistance voltage to generate a voltage command signal. The damping resistance voltage is based on first and second damping resistances. The control module controls operation of the asymmetric motor based on the voltage command signal.
    Type: Application
    Filed: October 19, 2018
    Publication date: April 23, 2020
    Applicant: GM Global Technology Operations LLC
    Inventors: Caleb W. SECREST, Dwarakanath V . SIMILI, Yo Chan SON
  • Patent number: 10614833
    Abstract: According to an embodiment, a headshell connecting a cartridge and a tonearm of an audio turntable includes a first part connected with the cartridge, a second part connected with the tonearm, and a joint axially and pivotally coupling the first part and the second part. The second part includes a first tension adjusting assembly of a first ball, a first spring, and a first tension adjuster and a second tension adjusting assembly of a second ball, a second spring, and a second tension adjuster, wherein the first tension adjusting assembly and the second tension adjusting assembly are formed in the second part and in parallel with each other.
    Type: Grant
    Filed: October 11, 2019
    Date of Patent: April 7, 2020
    Inventor: Dong-Chan Son
  • Patent number: 10598732
    Abstract: A method and system for detecting a fault in a permanent magnet synchronous motor (PMSM), operably connected to a controller. The method includes receiving at a controller a stator voltages and currents for the PMSM, computing a negative sequence current and a negative sequence voltage for the PMSM; and determining if conditions are satisfied for monitoring for a fault of the PMSM. The method also includes ascertaining a change in the negative sequence current and a change in the negative sequence voltage for a selected time duration, calculating a ratio of the change in the negative sequence current and the negative sequence voltage corresponding to a negative sequence admittance for the PMSM, determining if the negative sequence admittance differs from a nominal value in excess of a threshold; and identifying the stator winding as faulted if the ratio exceeds the threshold.
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: March 24, 2020
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Azeem Sarwar, Madi Zholbaryssov, Wesley G. Zanardelli, Yo Chan Son, Ethan M. Blakley
  • Publication number: 20200043520
    Abstract: According to an embodiment, a headshell connecting a cartridge and a tonearm of an audio turntable includes a first part connected with the cartridge, a second part connected with the tonearm, and a joint axially and pivotally coupling the first part and the second part. The second part includes a first tension adjusting assembly of a first ball, a first spring, and a first tension adjuster and a second tension adjusting assembly of a second ball, a second spring, and a second tension adjuster, wherein the first tension adjusting assembly and the second tension adjusting assembly are formed in the second part and in parallel with each other.
    Type: Application
    Filed: October 11, 2019
    Publication date: February 6, 2020
    Inventor: Dong-Chan SON
  • Patent number: 10554504
    Abstract: A non-transitory computer-readable medium comprises computer readable instructions, which when executed, cause at least one processor of a mobile device of a user to (a) identify at least one communication device within a predetermined distance from the mobile device as a target to perform a specific interaction to change user-originating information, (b) establish a communication channel with the communication device, when a specified touch gesture is detected in the mobile device, (c) receive, from the communication device, data related to the specific interaction; and (d) transmit, to a server, the data related to the specific interaction.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: February 4, 2020
    Assignee: IPNOLOGY LTD.
    Inventors: Byoung Chan Son, Byeong Ho Na