Patents by Inventor Yeong Ah CHEON

Yeong Ah CHEON 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).

  • Composition for rack housing member of vehicle having excellent dimensional stability and rack housing member of vehicle prepared using the same
    Patent number: 11555112
    Abstract: The present disclosure relates to a composition for a rack housing member of a vehicle having excellent dimensional stability, and a rack housing member of a vehicle formed therefrom. In an embodiment, the composition for a rack housing member of a vehicle comprises 100 parts by weight of a base resin containing polybutylene terephthalate, an acrylonitrile-styrene-acrylate copolymer, and polyethylene terephthalate, and 40 to 75 parts by weight of an inorganic filler, wherein the inorganic filler includes a glass fiber and a plate-shaped mineral filler.
    Type: Grant
    Filed: December 4, 2020
    Date of Patent: January 17, 2023
    Assignees: Hyundai Mobis Co., Ltd., HYUNDAI ADVANCED MATERIALS CO., LTD.
    Inventors: Jin Won Lee, Jeong Jae Park, Yeong Ah Cheon, Sang Ho Bang, Seung Soo Hong, Dong Chang Lee
  • Composition for worm wheel having excellent durability with wear resistance and worm wheel prepared using the same
    Patent number: 11454309
    Abstract: The present disclosure relates to a composition for a worm wheel having excellent durability and wear resistance and a worm wheel manufactured using the same. In one embodiment, the composition for a worm wheel includes a polyamide resin, wherein the polyamide resin includes a polyamide 66 resin having a relative viscosity (RV) of about 2.5 or higher and a polyamide 12 resin having a relative viscosity (RV) of about 1.0 or higher.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: September 27, 2022
    Assignees: HYUNDAI MOBIS CO., LTD., LG CHEM, LTD.
    Inventors: Jin Won Lee, Yeong Ah Cheon, Woo Jeong Oh, Jae Kyung Yang, Jae Wha Kim, Soo Min Kim, Min Han Kwak, Sang Rock Lee
  • COMPOSITION FOR RACK HOUSING MEMBER OF VEHICLE HAVING EXCELLENT DIMENSIONAL STABILITY AND RACK HOUSING MEMBER OF VEHICLE PREPARED USING THE SAME
    Publication number: 20210171763
    Abstract: The present disclosure relates to a composition for a rack housing member of a vehicle having excellent dimensional stability, and a rack housing member of a vehicle formed therefrom. In an embodiment, the composition for a rack housing member of a vehicle comprises 100 parts by weight of a base resin containing polybutylene terephthalate, an acrylonitrile-styrene-acrylate copolymer, and polyethylene terephthalate, and 40 to 75 parts by weight of an inorganic filler, wherein the inorganic filler includes a glass fiber and a plate-shaped mineral filler.
    Type: Application
    Filed: December 4, 2020
    Publication date: June 10, 2021
    Inventors: Jin Won LEE, Jeong Jae PARK, Yeong Ah CHEON, Sang Ho BANG, Seung Soo HONG, Dong Chang LEE
  • COMPOSITION FOR WORM WHEEL HAVING EXCELLENT DURABILITY WITH WEAR RESISTANCE AND WORM WHEEL PREPARED USING THE SAME
    Publication number: 20200318723
    Abstract: The present disclosure relates to a composition for a worm wheel having excellent durability and wear resistance and a worm wheel manufactured using the same. In one embodiment, the composition for a worm wheel includes a polyamide resin, wherein the polyamide resin includes a polyamide 66 resin having a relative viscosity (RV) of about 2.5 or higher and a polyamide 12 resin having a relative viscosity (RV) of about 1.0 or higher.
    Type: Application
    Filed: April 3, 2020
    Publication date: October 8, 2020
    Inventors: Jin Won LEE, Yeong Ah CHEON, Woo Jeong OH, Jae Kyung YANG, Jae Wha KIM, Soo Min KIM, Min Han KWAK, Sang Rock LEE
  • COMPOSITION FOR WORM WHEEL HAVING EXCELLENT DURABILITY AND MOISTURE ABSORPTION RESISTANCE AND WORM WHEEL MANUFACTURED USING THE SAME
    Publication number: 20200308392
    Abstract: The present disclosure relates to a composition for a worm wheel having excellent durability and moisture absorption resistance and a worm wheel manufactured using the same. In one embodiment, the composition for a worm wheel includes about 30 wt % to about 70 wt % of a polyketone copolymer and about 30 wt % to about 70 wt % of a polyamide resin, and the composition for a worm wheel has a friction coefficient of about 0.3 or less as measured in accordance with JIS K7218, an abrasion loss of about 0.002 g or less as measured in accordance with JIS K7218, and a moisture absorption rate of about 4% or less as measured in accordance with ASTM D570 (23° C. and 50 RH %).
    Type: Application
    Filed: March 26, 2020
    Publication date: October 1, 2020
    Inventors: Jin Won LEE, Yeong Ah CHEON, Woo Jeong OH, Seong Hwan KIM, Sung Kyoun YOON, Joong In KIM, Soo Ho SUNG, Jae Woo PARK