Patents by Inventor Choul Won So

Choul Won So 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: 10696830
    Abstract: Disclosed is a polyolefin resin, a method for preparing the same, and a vehicle rear bumper beam using the same. The polyolefin resin is characterized by being composed of a thermoplastic resin composite including a polymer base including a polypropylene homopolymer, which has a molecular weight distribution of 2 to 10, and a colorant; and a fiber reinforcing material that is impregnated into the polymer base and has a length of 5 to 20 mm, wherein 10 to 50 wt % of the fiber reinforcing material is included with respect to the polyolefin resin. The method is characterized in that a thermoplastic resin composite is formed by impregnating a molten mixture including a polypropylene homopolymer, which has a molecular weight distribution of 2 to 10, and a colorant with a fiber reinforcing material having a length of 5 to 20 mm.
    Type: Grant
    Filed: April 4, 2016
    Date of Patent: June 30, 2020
    Assignees: LOTTE CHEMICAL CORPORATION, SEOYON E-HWA CO., LTD
    Inventors: Young Bum Kim, Choul Won So, Seung Wook Park, In Kwang Lee, Dong Wook Kim
  • Patent number: 10106112
    Abstract: The present invention relates to a bumper system for a vehicle, and provides a bumper system for a vehicle, the system comprising: a bumper beam which has a fastening hole formed through each end thereof in the forward and backward direction; a crash box which is inserted into the fastening hole of the bumper beam; and a bracket which is fastened to the bumper beam so as to be able to prevent the crash box from being separated. Thereby, the system can meet both low speed crash regulations and RCAR performance.
    Type: Grant
    Filed: October 15, 2015
    Date of Patent: October 23, 2018
    Assignee: LOTTE CHEMICAL CORPORATION
    Inventors: Choul Won So, Myung Ho Lee, Jun Youp Kim
  • Publication number: 20180186984
    Abstract: Disclosed is a polyolefin resin, a method for preparing the same, and a vehicle rear bumper beam using the same. The polyolefin resin is characterized by being composed of a thermoplastic resin composite including a polymer base including a polypropylene homopolymer, which has a molecular weight distribution of 2 to 10, and a colorant; and a fiber reinforcing material that is impregnated into the polymer base and has a length of 5 to 20 mm, wherein 10 to 50 wt % of the fiber reinforcing material is included with respect to the polyolefin resin. The method is characterized in that a thermoplastic resin composite is formed by impregnating a molten mixture including a polypropylene homopolymer, which has a molecular weight distribution of 2 to 10, and a colorant with a fiber reinforcing material having a length of 5 to 20 mm.
    Type: Application
    Filed: April 4, 2016
    Publication date: July 5, 2018
    Applicants: LOTTE CHEMICAL CORPORATION, SEOYON E-HWA CO.,LTD
    Inventors: Young Bum KIM, Choul Won SO, Seung Wook PARK, In Kwang LEE, Dong Wook KIM
  • Publication number: 20170327065
    Abstract: The present invention relates to a bumper system for a vehicle, and provides a bumper system for a vehicle, the system comprising: a bumper beam which has a fastening hole formed through each end thereof in the forward and backward direction; a crash box which is inserted into the fastening hole of the bumper beam; and a bracket which is fastened to the bumper beam so as to be able to prevent the crash box from being separated. Thereby, the system can meet both low speed crash regulations and RCAR performance.
    Type: Application
    Filed: October 15, 2015
    Publication date: November 16, 2017
    Applicant: LOTTE CHEMICAL CORPORATION
    Inventors: Choul Won SO, Myung Ho LEE, Jun Youp KIM
  • Patent number: 9771039
    Abstract: A vehicle front structure is provided. The vehicle front structure includes a front bumper beam having a plurality of brackets that extend in the downward direction of a vehicle and coupling components that protrude forward from ends of the respective brackets. A stiffener is horizontally disposed on the coupling components and vertical pins vertically pass through the stiffener from the coupling components.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: September 26, 2017
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Lotte Chemical Corporation
    Inventors: Jin Young Yoon, Dong Eun Cha, Tae Hyung Kim, Hyun Gyung Kim, Choul Won So, Jun Youp Kim
  • Publication number: 20170096116
    Abstract: A vehicle front structure is provided. The vehicle front structure includes a front bumper beam having a plurality of brackets that extend in the downward direction of a vehicle and coupling components that protrude forward from ends of the respective brackets. A stiffener is horizontally disposed on the coupling components and vertical pins vertically pass through the stiffener from the coupling components.
    Type: Application
    Filed: March 8, 2016
    Publication date: April 6, 2017
    Inventors: Jin Young Yoon, Dong Eun Cha, Tae Hyung Kim, Hyun Gyung Kim, Choul Won So, Jun Youp Kim
  • Patent number: 9211857
    Abstract: A bumper beam assembly system includes a bumper beam and a stay connecting the bumper beam to a vehicle, wherein the stay is replaceably coupled to both sides of the bumper beam to occupy a corner portion of the bumper beam. The bucket structure includes a frame assembly part that is coupled to a frame, a first sidewall disposed on one side of the frame assembly part to constitute the corner portion of the bumper beam, a second sidewall disposed on the other side of the frame, and a bumper beam assembly part extending from the frame assembly part, the first sidewall, and the second sidewall in a flange shape and coupled to the bumper beam.
    Type: Grant
    Filed: November 28, 2014
    Date of Patent: December 15, 2015
    Assignee: LOTTE CHEMICAL CORPORATION
    Inventors: Choul Won So, Jong Wook Lee, Jun Youp Kim, Kyo Min Lee
  • Patent number: 9168856
    Abstract: The present invention relates to a hybrid seat frame for a vehicle and provides a hybrid seat frame for a vehicle including a main frame formed of glass fiber and a reinforced frame formed of carbon fiber to secure stiffness in a direction perpendicular to the longitudinal direction and torsional stiffness and to reduce its weight, thereby improving fuel efficiency of the vehicle.
    Type: Grant
    Filed: November 28, 2014
    Date of Patent: October 27, 2015
    Assignee: LOTTE CHEMICAL CORPORATION
    Inventors: Kyo Min Lee, Jong Wook Lee, Choul Won So
  • Publication number: 20150145313
    Abstract: The present invention relates to a hybrid seat frame for a vehicle and provides a hybrid seat frame for a vehicle including a main frame formed of glass fiber and a reinforced frame formed of carbon fiber to secure stiffness in a direction perpendicular to the longitudinal direction and torsional stiffness and to reduce its weight, thereby improving fuel efficiency of the vehicle.
    Type: Application
    Filed: November 28, 2014
    Publication date: May 28, 2015
    Inventors: Kyo Min LEE, Jong Wook LEE, Choul Won SO
  • Publication number: 20150137539
    Abstract: A bumper beam assembly system includes a bumper beam and a stay connecting the bumper beam to a vehicle, wherein the stay is replaceably coupled to both sides of the bumper beam to occupy a corner portion of the bumper beam. The bucket structure includes a frame assembly part that is coupled to a frame, a first sidewall disposed on one side of the frame assembly part to constitute the corner portion of the bumper beam, a second sidewall disposed on the other side of the frame, and a bumper beam assembly part extending from the frame assembly part, the first sidewall, and the second sidewall in a flange shape and coupled to the bumper beam.
    Type: Application
    Filed: November 28, 2014
    Publication date: May 21, 2015
    Inventors: Choul Won SO, Jong Wook LEE, Jun Youp KIM, Kyo Min LEE
  • Patent number: 8820805
    Abstract: Disclosed is the outer support member and the inner support member each have a vertical wall and upper and lower horizontal walls. The vertical walls of the outer support member and inner support member are formed on the outer surfaces of the respective support members. The inner edges of the upper and lower horizontal walls are inclined from the rear portions thereof toward front center portions thereof. Thus, the performance of the crash box of the present invention may satisfy the requirements for both an offset test and a barrier test, reduce the weight of the bumper beam assembly to thereby reduce costs, and improve the performance and fuel efficiency of the vehicle.
    Type: Grant
    Filed: September 8, 2011
    Date of Patent: September 2, 2014
    Assignee: Lotte Chemical Corporation
    Inventors: Jong Wook Lee, Seung Chang Kim, Choul Won So
  • Publication number: 20140054907
    Abstract: Provided is a bumper beam assembly system. The A bumper beam assembly system includes a bumper beam and a stay connecting the bumper beam to a vehicle, wherein the stay is replaceably coupled to both sides of the bumper beam to occupy a corner portion of the bumper beam.
    Type: Application
    Filed: August 26, 2013
    Publication date: February 27, 2014
    Applicant: LOTTE CHEMICAL CORPORATION
    Inventors: Choul Won SO, Jong Wook LEE, Jun Youp KIM, Kyo Min LEE
  • Publication number: 20130154287
    Abstract: Disclosed is the outer support member and the inner support member each have a vertical wall and upper and lower horizontal walls. The vertical walls of the outer support member and inner support member are formed on the outer surfaces of the respective support members. The inner edges of the upper and lower horizontal walls are inclined from the rear portions thereof toward front center portions thereof. Thus, the performance of the crash box of the present invention may satisfy the requirements for both an offset test and a barrier test, reduce the weight of the bumper beam assembly to thereby reduce costs, and improve the performance and fuel efficiency of the vehicle.
    Type: Application
    Filed: September 8, 2011
    Publication date: June 20, 2013
    Applicant: LOTTE CHEMICAL CORPORATION
    Inventors: Jong Wook Lee, Seung Chang Kim, Choul Won So