Patents by Inventor Kum Kang HWANG

Kum Kang HWANG 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).

  • Hybrid cord and high-performance radial tire including the same
    Patent number: 10035379
    Abstract: A hybrid cord for a tire, a method of manufacturing the same, and a high-performance environment-friendly radial tire including the same are disclosed herein. The hybrid cord includes a high-modulus fiber ply and a low-modulus fiber ply. The hybrid cord has a stress-strain curve including an initial modulus section, an intermediate modulus section and a final modulus section. The initial modulus of the initial modulus section is higher than the intermediate modulus of the intermediate modulus section, and the final modulus of the final modulus section is higher than the intermediate modulus.
    Type: Grant
    Filed: October 15, 2015
    Date of Patent: July 31, 2018
    Assignee: Hankook Tire Co., Ltd.
    Inventors: Ji Wan Lee, Il Yong Park, Kum Kang Hwang, Mi Jung Lee, Sung Tae Kim, Hyun Ran Cho
  • Tire-reinforcing steel cord and radial tire using the same
    Patent number: 9610806
    Abstract: Disclosed is a tire-reinforcing steel cord for a radial tire. The tire-reinforcing steel cord has a double layer structure including a first-layer core and a second-layer core provided on the surface of the first-layer core. The first-layer core has an elliptical or rectangular cross section. The tire-reinforcing steel cord can improve processability, fatigue characteristics, and rolling resistance performance of a tire, resulting in improved fuel efficiency. A radial tire using the tire-reinforcing steel cord is also disclosed.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: April 4, 2017
    Assignee: Hankook Tire Co., Ltd.
    Inventors: Kwan Woo Jung, Il Yong Park, Kum Kang Hwang, Ill Soon Jang, Ji Wan Lee, Mi Jung Lee
  • HYBRID CORD AND HIGH-PERFORMANCE RADIAL TIRE INCLUDING THE SAME
    Publication number: 20160107485
    Abstract: A hybrid cord for a tire, a method of manufacturing the same, and a high-performance environment-friendly radial tire including the same are disclosed herein. The hybrid cord includes a high-modulus fiber ply and a low-modulus fiber ply. The hybrid cord has a stress-strain curve including an initial modulus section, an intermediate modulus section and a final modulus section. The initial modulus of the initial modulus section is higher than the intermediate modulus of the intermediate modulus section, and the final modulus of the final modulus section is higher than the intermediate modulus.
    Type: Application
    Filed: October 15, 2015
    Publication date: April 21, 2016
    Inventors: Ji Wan LEE, Il Yong PARK, Kum Kang HWANG, Mi Jung LEE, Sung Tae KIM, Hyun Ran CHO
  • TIRE-REINFORCING STEEL CORD AND RADIAL TIRE USING THE SAME
    Publication number: 20150068655
    Abstract: Disclosed is a tire-reinforcing steel cord for a radial tire. The tire-reinforcing steel cord has a double layer structure including a first-layer core and a second-layer core provided on the surface of the first-layer core. The first-layer core has an elliptical or rectangular cross section. The tire-reinforcing steel cord can improve processability, fatigue characteristics, and rolling resistance performance of a tire, resulting in improved fuel efficiency. A radial tire using the tire-reinforcing steel cord is also disclosed.
    Type: Application
    Filed: April 9, 2014
    Publication date: March 12, 2015
    Applicant: HANKOOK TIRE CO., LTD.
    Inventors: Kwan Woo JUNG, Il Yong PARK, Kum Kang HWANG, Ill Soon JANG, Ji Wan LEE, Mi Jung LEE