Patents by Inventor Young-Chae HER

Young-Chae HER 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: 10421444
    Abstract: Disclosed is a brake system. The brake system includes a pulsation attenuation device configured to attenuate pressure pulsation of brake oil discharged from a pump, wherein the pulsation attenuation device includes a first damping device, wherein the first damping device includes: a first damping member inserted into a first bore in communication with an in-port through which brake oil is introduced and an out-port through which brake oil is discharged and having a hollow formed therein; a second damping member inserted into the hollow to form a damping space between the second damping member and an inner circumferential surface of the first damping member; and a sealing member coupled to the first damping member and configured to seal the first bore, wherein the damping space is formed by a plurality of grooves formed in the hollow.
    Type: Grant
    Filed: January 16, 2017
    Date of Patent: September 24, 2019
    Assignee: MANDO CORPORATION
    Inventors: I-Jin Yang, Young-Chae Her
  • Patent number: 10011254
    Abstract: Disclosed herein is a pulsation damping device of a hydraulic brake system. The pulsation damping device of a hydraulic brake system which attenuates a pressure pulsation of brake oil discharged from a pump, the device comprises a damping portion installed to be inserted into a bore in communication with an inport into which the brake oil flows and an outport through which the brake oil is discharged, and a cap coupled to one end of the bore to block the one end, wherein a flow path is formed on an outer circumferential surface of the damping portion to guide the brake oil introduced into the inport to be discharged through the outport, and the flow path is formed in a longitudinal direction of the damping portion to be continuously connected from the inport to the outport.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: July 3, 2018
    Assignee: MANDO CORPORATION
    Inventor: Young-Chae Her
  • Patent number: 9896075
    Abstract: Disclosed herein is a pulsation damping device of a hydraulic brake system. The pulsation damping device of a hydraulic brake system which attenuates a pressure pulsation of brake oil discharged from a pump comprise a sleeve inserted into a bore which communicates with an inport into which the brake oil is introduced and an outport through which the brake oil is discharged, wherein one end of the sleeve is open and the other end is closed, a damping member accommodated in the sleeve and hollowed to form a damping space therein, and a stopper member configured to block one open end of the bore and coupled to an opening of the sleeve.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: February 20, 2018
    Assignee: MANDO CORPORATION
    Inventors: Young-Chae Her, Jae-Young Jeon
  • Publication number: 20170217416
    Abstract: Disclosed is a brake system. The brake system includes a pulsation attenuation device configured to attenuate pressure pulsation of brake oil discharged from a pump, wherein the pulsation attenuation device includes a first damping device, wherein the first damping device includes: a first damping member inserted into a first bore in communication with an in-port through which brake oil is introduced and an out-port through which brake oil is discharged and having a hollow formed therein; a second damping member inserted into the hollow to form a damping space between the second damping member and an inner circumferential surface of the first damping member; and a sealing member coupled to the first damping member and configured to seal the first bore, wherein the damping space is formed by a plurality of grooves formed in the hollow.
    Type: Application
    Filed: January 16, 2017
    Publication date: August 3, 2017
    Inventors: I-Jin YANG, Young-Chae HER
  • Publication number: 20170066423
    Abstract: Disclosed herein is a pulsation damping device of a hydraulic brake system. The pulsation damping device of a hydraulic brake system which attenuates a pressure pulsation of brake oil discharged from a pump, the device comprises a damping portion installed to be inserted into a bore in communication with an inport into which the brake oil flows and an outport through which the brake oil is discharged, and a cap coupled to one end of the bore to block the one end, wherein a flow path is formed on an outer circumferential surface of the damping portion to guide the brake oil introduced into the inport to be discharged through the outport, and the flow path is formed in a longitudinal direction of the damping portion to be continuously connected from the inport to the outport.
    Type: Application
    Filed: September 7, 2016
    Publication date: March 9, 2017
    Inventor: Young-Chae HER
  • Publication number: 20170057478
    Abstract: Disclosed herein is a pulsation damping device of a hydraulic brake system. The pulsation damping device of a hydraulic brake system which attenuates a pressure pulsation of brake oil discharged from a pump comprise a sleeve inserted into a bore which communicates with an inport into which the brake oil is introduced and an outport through which the brake oil is discharged, wherein one end of the sleeve is open and the other end is closed, a damping member accommodated in the sleeve and hollowed to form a damping space therein, and a stopper member configured to block one open end of the bore and coupled to an opening of the sleeve.
    Type: Application
    Filed: September 1, 2016
    Publication date: March 2, 2017
    Inventors: Young-Chae HER, Jae-Young JEON