Patents by Inventor Il Seon Yoo

Il Seon 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: 10128778
    Abstract: An energy harvester is provided. The energy harvester includes a housing, a permanent magnet that is disposed within the housing, and a mass body that has a relative position to the permanent magnet changed by a translational motion within the housing by vibration energy from the exterior and that is formed of a magnetic substance. Further, a piezoelectric body generates electricity while elastically supporting vibration with respect to the housing of the permanent magnet by the translational motion of the mass body and an induction coil is disposed within the housing to generate induction electricity based on the vibration of the permanent magnet.
    Type: Grant
    Filed: March 28, 2016
    Date of Patent: November 13, 2018
    Assignee: Hyundai Motor Company
    Inventor: Il Seon Yoo
  • Patent number: 10048286
    Abstract: A MEMS sensor and a manufacturing method thereof is provided: forming a lower electrode layer wherein a metal is deposited on a portion of a lower glass substrate; forming a structural layer by etching according to a pattern which is formed on an upper surface of a silicon wafer and then further etching to the same thickness as the metal which is formed on a portion of the lower electrode layer; anodic bonding the structural layer to an upper portion of the lower electrode layer formed; forming a sensing part in the structural layer by etching according to a pattern which is formed on an opposite surface of the structural layer which is not etched; and forming an upper electrode layer by depositing a metal on an upper wafer and eutectic bonding the upper electrode layer to the structural layer on which the sensing part is formed.
    Type: Grant
    Filed: August 18, 2014
    Date of Patent: August 14, 2018
    Assignee: Hyundai Motor Company
    Inventors: Il Seon Yoo, Hi Won Lee, Soon Myung Kwon, Hyun Soo Kim
  • Publication number: 20170163179
    Abstract: An energy harvester is provided. The energy harvester includes a housing, a permanent magnet that is disposed within the housing, and a mass body that has a relative position to the permanent magnet changed by a translational motion within the housing by vibration energy from the exterior and that is formed of a magnetic substance. Further, a piezoelectric body generates electricity while elastically supporting vibration with respect to the housing of the permanent magnet by the translational motion of the mass body and an induction coil is disposed within the housing to generate induction electricity based on the vibration of the permanent magnet.
    Type: Application
    Filed: March 28, 2016
    Publication date: June 8, 2017
    Inventor: Il Seon Yoo
  • Publication number: 20150166328
    Abstract: A MEMS sensor and a manufacturing method thereof is provided: forming a lower electrode layer wherein a metal is deposited on a portion of a lower glass substrate; forming a structural layer by etching according to a pattern which is formed on an upper surface of a silicon wafer and then further etching to the same thickness as the metal which is formed on a portion of the lower electrode layer; anodic bonding the structural layer to an upper portion of the lower electrode layer formed; forming a sensing part in the structural layer by etching according to a pattern which is formed on an opposite surface of the structural layer which is not etched; and forming an upper electrode layer by depositing a metal on an upper wafer and eutectic bonding the upper electrode layer to the structural layer on which the sensing part is formed.
    Type: Application
    Filed: August 18, 2014
    Publication date: June 18, 2015
    Inventors: Il Seon Yoo, Hi Won Lee, Soon Myung Kwon, Hyun Soo Kim