Patents by Inventor Boo-youn Lee

Boo-youn Lee 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).

  • Publication number: 20240044051
    Abstract: The present invention relates to a polyester fiber, a preparation method thereof and a molded article prepared therefrom. The polyester fiber comprises a diol moiety derived from isosorbide in a specific amount and is formed into a polyester resin having a specific oligomer content, thereby providing a molded article having excellent saline water resistance, chemical resistance, light resistance and good knot strength, and capable of maintaining high transparency.
    Type: Application
    Filed: October 19, 2023
    Publication date: February 8, 2024
    Inventors: Boo-youn LEE, Sung-Gi KIM, Yoo Jin LEE
  • Patent number: 11787901
    Abstract: The present invention relates to a polyester container. The polyester container is formed from a polyester resin containing a particular content of diol moieties derived from isosorbide and diethylene glycol, and thus can show high transparency in spite of a great wall thickness thereof.
    Type: Grant
    Filed: August 5, 2022
    Date of Patent: October 17, 2023
    Assignee: SK Chemicals Co., Ltd.
    Inventors: Yoo Jin Lee, Sung-Gi Kim, Boo-Youn Lee
  • Patent number: 11713373
    Abstract: The present invention relates to a polyester resin. The polyester resin contains a particular content of diol moieties, derived from isosorbide and diethylene glycol, and thus can provide a resin molded product exhibiting high transparency in spite of a large wall thickness thereof.
    Type: Grant
    Filed: August 11, 2022
    Date of Patent: August 1, 2023
    Inventors: Yoo Jin Lee, Sung-Gi Kim, Boo-Youn Lee
  • Publication number: 20220389214
    Abstract: The present disclosure relates to a polyester resin blend, a polyester film and a preparation method of the same. The polyester resin blend is capable of providing a heat shrinkable label that is transparent and has excellent shrinkage even if it contains recycled polyethylene terephthalate as well as virgin polyethylene terephthalate. In addition, the heat shrinkable label can be reused while attached to a PET container, etc., and is expected to be useful for providing continuously usable plastics that have been recently attracting attention.
    Type: Application
    Filed: July 21, 2020
    Publication date: December 8, 2022
    Inventors: Boo-Youn LEE, Eui-Su KIM, Jong Ryang KIM
  • Publication number: 20220380529
    Abstract: The present invention relates to a polyester resin. The polyester resin contains a particular content of diol moieties, derived from isosorbide and diethylene glycol, and thus can provide a resin molded product exhibiting high transparency in spite of a large wall thickness thereof.
    Type: Application
    Filed: August 11, 2022
    Publication date: December 1, 2022
    Inventors: Yoo Jin LEE, Sung-Gi KIM, Boo-Youn LEE
  • Publication number: 20220380595
    Abstract: The present invention relates to a polyester container. The polyester container is formed from a polyester resin containing a particular content of diol moieties derived from isosorbide and diethylene glycol, and thus can show high transparency in spite of a great wall thickness thereof.
    Type: Application
    Filed: August 5, 2022
    Publication date: December 1, 2022
    Inventors: Yoo Jin Lee, Sung-Gi KIM, Boo-Youn LEE
  • Patent number: 11492444
    Abstract: The present invention relates to a polyester container. The polyester container is formed from a polyester resin containing a particular content of diol moieties derived from isosorbide and diethylene glycol, and thus can show high transparency in spite of a great wall thickness thereof.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: November 8, 2022
    Assignee: SK CHEMICALS CO., LTD.
    Inventors: Yoo Jin Lee, Sung-Gi Kim, Boo-Youn Lee
  • Patent number: 11447603
    Abstract: The present invention relates to a polyester resin. The polyester resin contains a particular content of diol moieties, derived from isosorbide and diethylene glycol, and thus can provide a resin molded product exhibiting high transparency in spite of a large wall thickness thereof.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: September 20, 2022
    Assignee: SK Chemicals Co., Ltd.
    Inventors: Yoo Jin Lee, Sung-Gi Kim, Boo-Youn Lee
  • Patent number: 11396579
    Abstract: The present invention relates to a polyester film and a preparation method thereof. The polyester film is formed of a polyester resin having a specific content of isosorbide and diethylene glycol introduced therein, containing a low content of oligomer, and exhibiting a specific intrinsic viscosity, thereby exhibiting excellent mechanical properties, heat resistance and chemical resistance, and good heat sealability.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: July 26, 2022
    Assignee: SK Chemicals Co., Ltd.
    Inventors: Yoo Jin Lee, Sung-Gi Kim, Boo-youn Lee
  • Publication number: 20200172662
    Abstract: The present invention relates to a polyester container. The polyester container is formed from a polyester resin containing a particular content of diol moieties derived from isosorbide and diethylene glycol, and thus can show high transparency in spite of a great wall thickness thereof.
    Type: Application
    Filed: June 18, 2018
    Publication date: June 4, 2020
    Inventors: Yoo Jin LEE, Sung-Gi KIM, Boo-Youn LEE
  • Publication number: 20200173060
    Abstract: The present invention relates to a polyester fiber, a preparation method thereof and a molded article prepared therefrom. The polyester fiber comprises a diol moiety derived from isosorbide in a specific amount and is formed into a polyester resin having a specific oligomer content, thereby providing a molded article having excellent saline water resistance, chemical resistance, light resistance and good knot strength, and capable of maintaining high transparency.
    Type: Application
    Filed: June 1, 2018
    Publication date: June 4, 2020
    Inventors: Boo-youn LEE, Sung-Gi KIM, Yoo Jin LEE
  • Publication number: 20200148816
    Abstract: The present invention relates to a polyester film and a preparation method thereof. The polyester film is formed of a polyester resin having a specific content of isosorbide and diethylene glycol introduced therein, containing a low content of oligomer, and exhibiting a specific intrinsic viscosity, thereby exhibiting excellent mechanical properties, heat resistance and chemical resistance, and good heat sealability.
    Type: Application
    Filed: June 25, 2018
    Publication date: May 14, 2020
    Inventors: Yoo Jin LEE, Sung-Gi KIM, Boo-youn LEE
  • Publication number: 20200087450
    Abstract: The present invention relates to a polyester resin. The polyester resin contains a particular content of diol moieties, derived from isosorbide and diethylene glycol, and thus can provide a resin molded product exhibiting high transparency in spite of a large wall thickness thereof.
    Type: Application
    Filed: May 29, 2018
    Publication date: March 19, 2020
    Inventors: Yoo Jin LEE, Sung-Gi KIM, Boo-Youn LEE
  • Patent number: 8813995
    Abstract: Provided is a refrigerator and a refrigerator door. The refrigerator includes a main body configured to form a storage space, a door configured to selectively open and close the storage space, handle fixing parts coupled to the door and protruding from the door, a door handle disposed at the door and configured to be grasped by a user for opening and closing the door, holders disposed at both sides of the door handle for receiving the handle fixing parts, and a detachment preventing part. The detachment preventing part is coupled to a side of the holder at an acute angle with a front surface of the door and is configured to be locked by the handle fixing part for fixing the door handle. The door handle can be attached to the door more easily and firmly.
    Type: Grant
    Filed: August 27, 2008
    Date of Patent: August 26, 2014
    Assignee: LG Electronics Inc.
    Inventors: Hyun-Cheol Kim, Chang-Lim Lee, Boo-Youn Lee, Sang-Hu Park
  • Publication number: 20110220662
    Abstract: Provided is a refrigerator and a refrigerator door. The refrigerator includes a main body configured to form a storage space, a door configured to selectively open and close the storage space, handle fixing parts coupled to the door and protruding from the door, a door handle disposed at the door and configured to be grasped by a user for opening and closing the door, holders disposed at both sides of the door handle for receiving the handle fixing parts, and a detachment preventing part. The detachment preventing part is coupled to a side of the holder at an acute angle with a front surface of the door and is configured to be locked by the handle fixing part for fixing the door handle. The door handle can be attached to the door more easily and firmly.
    Type: Application
    Filed: August 27, 2008
    Publication date: September 15, 2011
    Inventors: Hyun-Cheol Kim, Chang-Lim Lee, Boo-Youn Lee, Sang-Hu Park
  • Patent number: 7645967
    Abstract: The present invention relates to a microwave oven. The microwave oven of the present invention comprises a cavity assembly which defines a cooking chamber therein and functions as a framework of the microwave oven, an outer casing which includes a top portion and side portions formed at both ends of the top portion to enclose the cavity assembly and interior parts and is provided with convexo-concave reinforcements at the top portion and at least one side portion, a door of which one side is connected to the cavity assembly to be a pivot center and which selectively causes the cooking chamber to be open and close, and a back plate which defines a rear face of the cavity assembly and is provided with a convexo-concave reinforcement formed along at least one edge portion thereof. According to the present invention constructed as such, there is an advantage in that external rigidity of the microwave oven is increased, whereby deformation of the microwave oven due to an impact or operating force can be minimized.
    Type: Grant
    Filed: January 5, 2006
    Date of Patent: January 12, 2010
    Assignee: LG Electronics Inc.
    Inventors: Yong-yeon Kim, Dong-yool Lee, Boo-youn Lee, Sang-hu Park, Soo-kil Park, Woon-jin Kim, Hyung-do Kim, Sang-dong Park, Gyu-ho Oh
  • Publication number: 20060113301
    Abstract: The present invention relates to a microwave oven. The microwave oven of the present invention comprises a cavity assembly which defines a cooking chamber therein and functions as a framework of the microwave oven, an outer casing which includes a top portion and side portions formed ar both ends of the top portion to enclose the cavity assembly and interior parts and is provided with convexo-concave reinforcements at the top portion and at least one side portion, a door of which one side is connected to the cavity assembly to be a pivot center and which selectively causes the cooking chamber to be open and close, and a back plate which defines a rear face of the cavity assembly and is provided with a convexo-concave reinforcement formed along at least one edge portion thereof. According to the present invention constructed as such, there is an advantage in that external rigidity of the microwave oven is increased, whereby deformation of the microwave oven due to an impact or operating force can be minimized.
    Type: Application
    Filed: January 5, 2006
    Publication date: June 1, 2006
    Inventors: Yong-yeon Kim, Dong-yool Lee, Boo-youn Lee, Sang-hu Park, Soo-kil Park, Woon-jin Kim, Hyung-do Kim, Sang-dong Park, Gyu-ho Oh
  • Patent number: 7012230
    Abstract: The present invention relates to a microwave oven. The microwave oven of the present invention comprises a cavity assembly which defines a cooking chamber therein and functions as a framework of the microwave oven, an outer casing which includes a top portion and side portions formed at both ends of the top portion to enclose the cavity assembly and interior parts and is provided with convexo-concave reinforcements at the top portion and at least one side portion, a door of which one side is connected to the cavity assembly to be a pivot center and which selectively causes the cooking chamber to be open and close, and a back plate which defines a rear face of the cavity assembly and is provided with a convexo-concave reinforcement formed along at least one edge portion thereof. According to the present invention constructed as such, there is an advantage in that external rigidity of the microwave oven is increased, whereby deformation of the microwave oven due to an impact or operating force can be minimized.
    Type: Grant
    Filed: December 23, 2003
    Date of Patent: March 14, 2006
    Assignee: LG Electronics Inc.
    Inventors: Yong-yeon Kim, Dong-yool Lee, Boo-youn Lee, Sang-hu Park, Soo-kil Park, Woon-jin Kim, Hyung-do Kim, Sang-dong Park, Gyu-ho Oh
  • Publication number: 20040178195
    Abstract: The present invention relates to a microwave oven. The microwave oven of the present invention comprises a cavity assembly which defines a cooking chamber therein and functions as a framework of the microwave oven, an outer casing which includes a top portion and side portions formed at both ends of the top portion to enclose the cavity assembly and interior parts and is provided with convexo-concave reinforcements at the top portion and at least one side portion, a door of which one side is connected to the cavity assembly to be a pivot center and which selectively causes the cooking chamber to be open and close, and a back plate which defines a rear face of the cavity assembly and is provided with a convexo-concave reinforcement formed along at least one edge portion thereof. According to the present invention constructed as such, there is an advantage in that external rigidity of the microwave oven is increased, whereby deformation of the microwave oven due to an impact or operating force can be minimized.
    Type: Application
    Filed: December 23, 2003
    Publication date: September 16, 2004
    Inventors: Yong-yeon Kim, Dong-yool Lee, Boo-youn Lee, Sang-hu Park, Soo-Kil Park, Woon-Jin Kim, Hyung-do Kim, Sang-dong Park, Gyu-ho Oh