Patents by Inventor Kil Ju KO

Kil Ju KO 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: 11214095
    Abstract: Provided are a sheet, a method of its preparation, and a tire comprising the sheet, wherein the sheet comprises tire cords, a topping rubber for topping the tire cords, and a conductive fiber located on the surface of the topping rubber. The sheet can provide tires, on which a rubber composition with a low electricity-transmitting property and low rolling resistance is applied, with excellent conductivity.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: January 4, 2022
    Inventors: Ji Wan Lee, Mi Jung Lee, Sung Tae Kim, Kil Ju Ko, Il Yong Park, Su Hong Sung
  • Publication number: 20210162809
    Abstract: The present invention relates to a tire including a fabric strip, and the tire includes a fabric strip in a belt layer, the fabric strip including a plurality of warps arranged in parallel to one another and wefts arranged to weave the warps. The tire according to the invention is advantageous in that the production process is simplified, the production cost required during the production process is lowered, the weight of the tire is reduced, and the fuel efficiency is increased when a car using the tire of the invention is driven, by reducing the resistance to rolling.
    Type: Application
    Filed: November 2, 2020
    Publication date: June 3, 2021
    Inventors: Kil Ju Ko, Mi Jung Lee, Hyun Ran Cho, Hae Kwang Chung
  • Publication number: 20190193465
    Abstract: Provided are a sheet, a method of its preparation, and a tire comprising the sheet, wherein the sheet comprises tire cords, a topping rubber for topping the tire cords, and a conductive fiber located on the surface of the topping rubber. The sheet can provide tires, on which a rubber composition with a low electricity-transmitting property and low rolling resistance is applied, with excellent conductivity.
    Type: Application
    Filed: November 27, 2018
    Publication date: June 27, 2019
    Inventors: Ji Wan LEE, Mi Jung LEE, Sung Tae KIM, Kil Ju KO, Il Yong PARK, Su Hong SUNG
  • Patent number: 10266009
    Abstract: Disclosed are a hybrid cord produced by plying and twisting high modulus yarns and polyamide monofilaments, and a tire including the same. More specifically, disclosed is a method of producing a hybrid cord having a clear core-covering structure including a core comprising a polyamide monofilament and a covering spirally twisted around the core and comprising a high modulus yarn. The hybrid cord can clearly control the modulus ratio in each area, improving production efficiency of the cord and processability of the tire and reducing deviations of uniformity and driving performance. In addition, the tire using the hybrid cord reduces tire deformation during driving, thus satisfying both driving performance and comfort.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: April 23, 2019
    Assignee: HANKOOK TIRE CO., LTD.
    Inventors: Ji Wan Lee, Kil Ju Ko, Sung Tae Kim, Hyun Ran Cho, Il Yong Park
  • Publication number: 20170210168
    Abstract: Disclosed are a hybrid cord produced by plying and twisting high modulus yarns and polyamide monofilaments, and a tire including the same. More specifically, disclosed is a method of producing a hybrid cord having a clear core-covering structure including a core comprising a polyamide monofilament and a covering spirally twisted around the core and comprising a high modulus yarn. The hybrid cord can clearly control the modulus ratio in each area, improving production efficiency of the cord and processability of the tire and reducing deviations of uniformity and driving performance. In addition, the tire using the hybrid cord reduces tire deformation during driving, thus satisfying both driving performance and comfort.
    Type: Application
    Filed: January 18, 2017
    Publication date: July 27, 2017
    Inventors: Ji Wan Lee, Kil Ju Ko, Sung Tae Kim, Hyun Ran Cho, II Yong Park
  • Patent number: 9387726
    Abstract: The present invention relates to an airless tire, and includes first and second bands that face each other with a distance interposed therebetween, a plurality of spokes that connect the first band to the second band and are provided at intervals, and first and second connecting members that connect the adjacent spokes. The spoke includes a first member of which one end is curved from the first band toward the second band, and a second member of which one end is curved from the second band toward the first band. The other ends of the first and second members are connected to each other, and the first and second members are curved in opposite directions.
    Type: Grant
    Filed: June 19, 2013
    Date of Patent: July 12, 2016
    Assignee: HANKOOK TIRE CO., LTD.
    Inventors: Seok Ju Choi, Hak Joo Kim, Man Seop Kim, Kil Ju Ko, Ki Ho Kang, Yoon Jin Choi
  • Patent number: 9333799
    Abstract: Disclosed herein is a non-pneumatic tire with a reinforcing member. The non-pneumatic tire includes a tread part which comes into contact with the ground, a rim part which is coupled to an axle, an outer annular band part which forms an interface with an inner surface of the tread part, an inner annular band part which forms an interface with the rim part, a spoke part which is disposed between the outer annular band part and the inner annular band part and functions as a support, a connector which connects spokes of the spoke part to each other, and a reinforcing member which has a plate wire structure. The non-pneumatic tire can effectively and sufficiently withstand the weight of a vehicle. Further, the performance of the tire is balanced with respect to the contact area, the displacement extent and the resistance to rolling.
    Type: Grant
    Filed: July 30, 2013
    Date of Patent: May 10, 2016
    Assignee: Hankook Tire Co., Ltd.
    Inventors: Seok Ju Choi, Hak Joo Kim, Man Seop Kim, Kil Ju Ko, Ki Ho Kang
  • Patent number: 9290053
    Abstract: A non-pneumatic tire for a vehicle is disclosed. The non-pneumatic tire includes a tread, a rim part, inside and outside annular bands, a spoke member, and a pair of protective films. The tread comes into contact with a road surface. The rim part is connected to the axle of a vehicle. The inside and outside annular bands are disposed between the tread and the rim part, and are coaxially spaced apart from each other. The spoke member includes supports disposed in a predetermined pattern and configured to connect the inside and outside annular bands, and openings defined by the supports. The pair of protective films are disposed at both ends of the tire in the widthwise direction of the tire, and prevents foreign substances from infiltrating into the openings of the spoke member. The protective films are made of the same material as the spoke member and integrated with the spoke member.
    Type: Grant
    Filed: October 23, 2014
    Date of Patent: March 22, 2016
    Assignee: Hankook Tire Co., Ltd.
    Inventors: Seok Ju Choi, Hak Joo Kim, Man Seop Kim, Kil Ju Ko, Ki Ho Kang
  • Publication number: 20150122382
    Abstract: A non-pneumatic tire for a vehicle is disclosed. The non-pneumatic tire includes a tread, a rim part, inside and outside annular bands, a spoke member, and a pair of protective films. The tread comes into contact with a road surface. The rim part is connected to the axle of a vehicle. The inside and outside annular bands are disposed between the tread and the rim part, and are coaxially spaced apart from each other. The spoke member includes supports disposed in a predetermined pattern and configured to connect the inside and outside annular bands, and openings defined by the supports. The pair of protective films are disposed at both ends of the tire in the widthwise direction of the tire, and prevents foreign substances from infiltrating into the openings of the spoke member. The protective films are made of the same material as the spoke member and integrated with the spoke member.
    Type: Application
    Filed: October 23, 2014
    Publication date: May 7, 2015
    Inventors: Seok Ju CHOI, Hak Joo KIM, Man Seop KIM, Kil Ju KO, Ki Ho KANG
  • Publication number: 20140238561
    Abstract: Disclosed herein is a non-pneumatic tire with a reinforcing member. The non-pneumatic tire includes a tread part which comes into contact with the ground, a rim part which is coupled to an axle, an outer annular band part which forms an interface with an inner surface of the tread part, an inner annular band part which forms an interface with the rim part, a spoke part which is disposed between the outer annular band part and the inner annular band part and functions as a support, a connector which connects spokes of the spoke part to each other, and a reinforcing member which has a plate wire structure. The non-pneumatic tire can effectively and sufficiently withstand the weight of a vehicle. Further, the performance of the tire is balanced with respect to the contact area, the displacement extent and the resistance to rolling.
    Type: Application
    Filed: July 30, 2013
    Publication date: August 28, 2014
    Applicant: HANKOOK TIRE CO., LTD.
    Inventors: Seok Ju CHOI, Hak Joo KIM, Man Seop KIM, Kil Ju KO, Ki Ho KANG
  • Publication number: 20140000777
    Abstract: The present invention relates to an airless tire, and includes first and second bands that face each other with a distance interposed therebetween, a plurality of spokes that connect the first band to the second band and are provided at intervals, and first and second connecting members that connect the adjacent spokes. The spoke includes a first member of which one end is curved from the first band toward the second band, and a second member of which one end is curved from the second band toward the first band. The other ends of the first and second members are connected to each other, and the first and second members are curved in opposite directions.
    Type: Application
    Filed: June 19, 2013
    Publication date: January 2, 2014
    Inventors: Seok Ju CHOI, Hak Joo KIM, Man Seop KIM, Kil Ju KO, Ki Ho KANG, Yoon Jin CHOI