Patents by Inventor Hyong Do Chung

Hyong Do Chung 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).

  • INTAKE FILTER FOR VEHICLE AND MANUFACTURING METHOD THEREOF
    Publication number: 20230356124
    Abstract: A shaped cross-section composite fiber for an intake filter is manufactured from a single material of polypropylene, without separate binder processing by using the single material of polypropylene as a filter material. The shaped cross-section composite fiber includes: a sheath comprising a reformed polypropylene resin; and a core comprising a polypropylene resin, where the sheath and the core are combined to provide a sheath-core structure.
    Type: Application
    Filed: July 20, 2023
    Publication date: November 9, 2023
    Inventors: Yong Gyo Seo, Yong Seok Jang, Sang Jun Ahn, Jung Wu Jung, Hyong Do Chung, Young Hae Kim, Kyung Ho Hwang, Soo Hyun Kim, Dong Eun Kim, Nam Hoon Kim
  • Intake apparatus for internal combustion engines
    Patent number: 11415090
    Abstract: An intake apparatus for an internal combustion engine may include: an air duct coupled to a front of an engine compartment, and having a first inlet and a second inlet formed on an outer side of the air duct and a passage space defined therein; and an integrated valve coupled to the air duct to selectively open and close the first inlet or the second inlet.
    Type: Grant
    Filed: January 23, 2020
    Date of Patent: August 16, 2022
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Jung-Wu Jung, Hyong-Do Chung, Sang-Jun Ahn
  • INTAKE APPARATUS FOR INTERNAL COMBUSTION ENGINES
    Publication number: 20210079875
    Abstract: An intake apparatus for an internal combustion engine may include: an air duct coupled to a front of an engine compartment, and having a first inlet and a second inlet formed on an outer side of the air duct and a passage space defined therein; and an integrated valve coupled to the air duct to selectively open and close the first inlet or the second inlet.
    Type: Application
    Filed: January 23, 2020
    Publication date: March 18, 2021
    Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Jung-Wu JUNG, Hyong-Do CHUNG, Sang-Jun AHN
  • INTAKE FILTER FOR VEHICLE AND MANUFACTURING METHOD THEREOF
    Publication number: 20210008476
    Abstract: A shaped cross-section composite fiber for an intake filter is manufactured from a single material of polypropylene, without separate binder processing by using the single material of polypropylene as a filter material. The shaped cross-section composite fiber includes: a sheath comprising a reformed polypropylene resin; and a core comprising a polypropylene resin, where the sheath and the core are combined to provide a sheath-core structure.
    Type: Application
    Filed: November 25, 2019
    Publication date: January 14, 2021
    Inventors: Yong Gyo Seo, Yong Seok Jang, Sang Jun Ahn, Jung Wu Jung, Hyong Do Chung, Young Hae Kim, Kyung Ho Hwang, Soo Hyun Kim, Dong Eun Kim, Nam Hoon Kim
  • Sound generator for vehicle
    Patent number: 10699693
    Abstract: A sound generator for a vehicle includes: a resonator chamber configured to contact and expand in a longitudinal direction; a membrane disposed on a front open part of the resonator chamber; a cover disposed on a rear open part of the resonator chamber; a connecting pipe connected between the cover and an engine intake system; a magnet disposed on an inner surface of the cover; a coil disposed in a front end part of the resonator chamber; and a sound controller configured to apply an electric current to the coil.
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: June 30, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Hyong Do Chung, Jung Wu Jung, Sang Jun Ahn