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).

  • Publication number: 20240161588
    Abstract: An apparatus for providing haptic stimulation includes an ultrasonic actuator configured to provide haptic stimulation to a part of a body located at a target location by generating an ultrasonic signal, and forming sound pressure at the target location via the generated ultrasonic signal; an object sensor provided around the ultrasonic actuator and configured to detect an object within a region between the ultrasonic actuator and the target location; and a control module configured to stop operation of the ultrasonic actuator based on detecting the object within the region is sensed.
    Type: Application
    Filed: April 21, 2023
    Publication date: May 16, 2024
    Inventors: Jang Hyeon Lee, Il Seon Yoo, Dae Sung Kwon, Dong Gu Kim, Hyun Soo Kim
  • Patent number: 11981236
    Abstract: A convertible seat for a vehicle includes a base frame having a predetermined dimension of storage space, a plurality of individual blocks disposed to be ascendable and descendable in the storage space of the base frame and configured to serve as a seatback and a seat cushion, and a raising and lowering drive device installed in each of the individual blocks and configured to raise or lower a corresponding one of the individual blocks so that a seat position can be changed into various forms.
    Type: Grant
    Filed: October 19, 2022
    Date of Patent: May 14, 2024
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Jang Hyeon Lee, Dae Sung Kwon, Dong Gu Kim, Il Seon Yoo
  • Publication number: 20240014752
    Abstract: An energy harvester includes an electrode part including a plurality of partition walls spaced apart from one another in a horizontal direction, and spaces defined between the plurality of partition walls, and a cantilever part including a cantilever member having at least a partial region provided in the space defined in the electrode part, the cantilever member includes a plurality of cantilever members, each of the plurality of cantilever members having a first end and a second end, wherein the first end is positioned in the space defined in the electrode part, and wherein the second end is fixedly coupled to a housing, and in which a natural frequency of at least one of the plurality of cantilever members is different from a natural frequency of each of the remaining cantilever members.
    Type: Application
    Filed: December 6, 2022
    Publication date: January 11, 2024
    Inventors: Dae Sung Kwon, Il Seon Yoo, Jang Hyeon Lee, Dong Gu Kim, Hyun Soo Kim
  • Publication number: 20230221271
    Abstract: An embodiment catalytic combustion type hydrogen sensor includes a protective thin film disposed on an upper surface of a silicon substrate, the protective thin film including an oxide film and a nitride film sequentially laminated, a heater coupled to an upper surface of the nitride film, an anti-icing film disposed on an upper surface of the protective thin film and covering the heater, the anti-icing film including micro-protrusions disposed on an outer surface thereof, and a catalyst layer deposited on an upper surface of the anti-icing film and coated along surfaces of the micro-protrusions of the anti-icing film, wherein the catalyst layer is configured to be heated by the heater to perform a hydrogen reaction for oxidizing hydrogen and to coat the surfaces of the micro-protrusions to prevent water generated through the hydrogen reaction from freezing.
    Type: Application
    Filed: August 3, 2022
    Publication date: July 13, 2023
    Inventors: Dae Sung Kwon, Il Seon Yoo, Jang Hyeon Lee, Dong Gu Kim, Hyun Soo Kim
  • Publication number: 20230194494
    Abstract: A hydrogen sensor includes a substrate, an insulating part formed on the substrate and provided with a plurality of holes, a first catalyst part formed on an upper end of the insulating part to accelerate the reaction between hydrogen and oxygen, a second catalyst part formed on a surface of the holes to accelerate the reaction between hydrogen and oxygen, and a heater part disposed inside the insulating part to heat the first catalyst part and the second catalyst part, and having an temperature increased by reaction heat generated by the reaction between hydrogen and oxygen.
    Type: Application
    Filed: October 10, 2022
    Publication date: June 22, 2023
    Inventors: Il Seon Yoo, Hyun Soo Kim, Jang Hyeon Lee, Dong Gu Kim, Dae Sung Kwon
  • Publication number: 20230159322
    Abstract: The present disclosure relates to a microelectromechanical systems (MEMS) device and method for manufacturing the same for improving the uniformity of temperature distribution in a heater unit, and the present disclosure discloses a MEMS device and method for manufacturing the same, including a heater unit that is formed on a substrate, and a dummy pattern unit that is formed in a remaining portion except for a portion where the heater unit is formed so as not to be electrically connected to the heater unit.
    Type: Application
    Filed: July 22, 2022
    Publication date: May 25, 2023
    Inventors: Dae Sung Kwon, Il Seon Yoo, Jang Hyeon Lee, Dong Gu Kim, Hyun Soo Kim
  • Publication number: 20230150404
    Abstract: A convertible seat for a vehicle includes a base frame having a predetermined dimension of storage space, a plurality of individual blocks disposed to be ascendable and descendable in the storage space of the base frame and configured to serve as a seatback and a seat cushion, and a raising and lowering drive device installed in each of the individual blocks and configured to raise or lower a corresponding one of the individual blocks so that a seat position can be changed into various forms.
    Type: Application
    Filed: October 19, 2022
    Publication date: May 18, 2023
    Applicants: HYUNDAI MOTOR COMPANY, Kia Corporation
    Inventors: Jang Hyeon Lee, Dae Sung Kwon, Dong Gu Kim, Il Seon Yoo
  • Publication number: 20230130510
    Abstract: Disclosed herein is a method for manufacturing a hydrogen sensor, the method comprising the steps of: disposing a thin film made of a transition metal or an alloy thereof on a surface of elastic substrate; applying a tensile force in a repetitive manner to the elastic substrate to form a nanocrack on the thin film disposed on the surface of the elastic substrate; and injecting hydrogen gas into the formed nanocrack and then removing the hydrogen gas to form a nanogap, wherein the tensile force in the step of forming a nanocrack is applied to an extent that the elastic substrate has a tensile strain of 25% to 100%.
    Type: Application
    Filed: June 21, 2022
    Publication date: April 27, 2023
    Inventors: Dong Gu Kim, Jang Hyeon Lee, Dae Sung Kwon, Hyun Soo Kim, Il Seon Yoo, Tae Ho Jeong, Woo Young Lee, Hyun Sook Lee, Se Young Park, Soo Min Lee, Jin Kyo Jeong, Hae Won Yoon
  • Publication number: 20230034945
    Abstract: An embodiment contact combustion type hydrogen sensor includes a substrate including silicon, lamination layers disposed over a top surface of the substrate and including a first thin oxide layer and a first thin nitride layer, a heater over the lamination layers, the heater including a connecting part electrically connected to a predetermined part and a heating part configured to be heated in response to power being applied, insulating layers covering a top surface of the heater and configured to perform an insulating operation, the insulating layers including a second thin oxide layer and a second thin nitride layer, a platinum catalyst over the insulating layers and configured to be heated by the heater to perform a hydrogen reaction, and a slit outside the heating part and passing through the substrate and the lamination layers.
    Type: Application
    Filed: May 12, 2022
    Publication date: February 2, 2023
    Applicants: Hyundai Motor Company, Kia Corporation
    Inventors: Il Seon Yoo, Hyun Soo Kim, Jang Hyeon Lee, Dong Gu Kim, Dae Sung Kwon
  • Publication number: 20230022835
    Abstract: A particulate matter sensing device includes an inlet through which air is introduced, a particle classifying unit classifying particles included in air introduced through the inlet, a corona discharging unit electrifying the particles passing through the particle classifying unit, and a sensing unit collecting the particles electrified by the corona discharging unit, in which the sensing unit includes an electrode having a plurality of intervals to collect the particles electrified by the sensing unit, and a control unit determining whether fine particles are detected, based on a result of monitoring an output signal change of the electrode.
    Type: Application
    Filed: April 26, 2022
    Publication date: January 26, 2023
    Inventors: Il Seon Yoo, Dae Sung Kwon, Dong Gu Kim, Hyun Soo Kim
  • Patent number: 11317179
    Abstract: A MEMS microphone and a manufacturing method thereof are provided. The MEMS microphone includes: a substrate configured to have a through portion formed in a central portion thereof; a vibration membrane configured to have an uneven structure formed on the through portion of the substrate; and a fixed membrane provided on an upper position spaced apart from the vibration membrane by a predetermined distance.
    Type: Grant
    Filed: October 13, 2020
    Date of Patent: April 26, 2022
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Il Seon Yoo, Sang Hyeok Yang, Hyun Soo Kim, Dong Gu Kim
  • Publication number: 20220074880
    Abstract: Embodiments of the present invention relate to a MEMS hydrogen sensor and a system including the same. An exemplary embodiment of the present invention provides a MEMS (micro electro-mechanical systems) hydrogen sensor including a sensing element configured to sense hydrogen gas, an anti-icing element configured to surround the sensing element, and a compensation element configured to have same resistance as that of the sensing element.
    Type: Application
    Filed: May 12, 2021
    Publication date: March 10, 2022
    Inventors: Dong Gu Kim, Hyun Soo Kim, Il Seon Yoo
  • Publication number: 20220046344
    Abstract: A MEMS microphone and a manufacturing method thereof are provided. The MEMS microphone includes: a substrate configured to have a through portion formed in a central portion thereof; a vibration membrane configured to have an uneven structure formed on the through portion of the substrate; and a fixed membrane provided on an upper position spaced apart from the vibration membrane by a predetermined distance.
    Type: Application
    Filed: October 13, 2020
    Publication date: February 10, 2022
    Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Il Seon YOO, Sang Hyeok YANG, Hyun Soo KIM, Dong Gu KIM
  • Patent number: 11034579
    Abstract: A microphone includes a substrate having a first sound hole formed therein, a sound-sensing module mounted on the substrate so as to be aligned with the first sound hole, a signal-processing chip mounted on the substrate so as to be electrically connected to the sound-sensing module, a cover mounted on the substrate so as to accommodate the sound-sensing module therein and including a filter accommodation portion having a second sound hole formed therein, and a sound delay filter elastically accommodated in the filter accommodation portion so as to be aligned with the second sound hole. The microphone has a simplified structure, and can be manufactured to as to improve the stability and reliability thereof.
    Type: Grant
    Filed: October 14, 2019
    Date of Patent: June 15, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Il Seon Yoo
  • Publication number: 20210031725
    Abstract: A rain sensor includes: a substrate, a first sensor that is disposed on a first surface of the substrate and that senses a sound signal; a second sensor disposed on a second surface of the substrate and attached to windshield glass of the vehicle to sense a capacitance change; and a processor that determines precipitation, based on at least one of the sound signal or the capacitance change.
    Type: Application
    Filed: January 14, 2020
    Publication date: February 4, 2021
    Inventor: Il Seon YOO
  • Publication number: 20210009407
    Abstract: A microphone includes a substrate having a first sound hole formed therein, a sound-sensing module mounted on the substrate so as to be aligned with the first sound hole, a signal-processing chip mounted on the substrate so as to be electrically connected to the sound-sensing module, a cover mounted on the substrate so as to accommodate the sound-sensing module therein and including a filter accommodation portion having a second sound hole formed therein, and a sound delay filter elastically accommodated in the filter accommodation portion so as to be aligned with the second sound hole. The microphone has a simplified structure, and can be manufactured to as to improve the stability and reliability thereof.
    Type: Application
    Filed: October 14, 2019
    Publication date: January 14, 2021
    Inventor: Il Seon Yoo
  • 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