Patents by Inventor Mun Gyu Bak

Mun Gyu Bak 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: 20250188283
    Abstract: An embodiment polypropylene composition includes a composite including wood flour and a low molecular weight hydrocarbon-based material, a highly crystalline polypropylene-based resin, a graft-modified polypropylene-based resin, and a fiber filler. In an embodiment, the composition includes 35 wt % to 45 wt % of the composite, 30 wt % to 40 wt % of the highly crystalline polypropylene-based resin, 1 wt % to 5 wt % of the graft-modified polypropylene-based resin, and 15 wt % to 25 wt % of the fiber filler.
    Type: Application
    Filed: February 9, 2024
    Publication date: June 12, 2025
    Inventors: Dae Sik Kim, Mun Gyu Bak, Han Ki Lee, Jun Ho Lee, Jong Hyeon Kim, Im Taek Sung
  • Publication number: 20240424874
    Abstract: A door module plate includes a plate body provided to correspond to a door of a vehicle, a mount portion provided at an edge portion of the plate body and configured to be fastened to a fastening member, an edge groove provided at the edge portion of the plate body, and a reinforcement rib integrally protruding from an internal surface of the edge groove, obtaining an advantageous effect of ensuring rigidity and improving safety and reliability.
    Type: Application
    Filed: November 27, 2023
    Publication date: December 26, 2024
    Applicants: HYUNDAI MOTOR COMPANY, Kia Corporation, LOTTE CHEMICAL CORPORATION
    Inventors: Han Ki LEE, Ji Hye PARK, Mun Gyu BAK, Ji Won LEE, Byeong Kyu MOON, Rae Sung PARK
  • Publication number: 20240174851
    Abstract: A polypropylene composite resin composition and a molded article made from same have improved impact resistance. The composition includes: a first propylene-ethylene block copolymer resin having a melt index of 20 to 40 g/10 min (230° C., 2.16 kg); a second propylene-ethylene block copolymer resin having a melt index of 5 to 15 g/10 min (230° C., 2.16 kg); a thermoplastic elastomer including at least one of a styrenic thermoplastic elastomer or an olefinic thermoplastic elastomer; an inorganic filler; and a nucleating agent in appropriate amounts.
    Type: Application
    Filed: August 8, 2023
    Publication date: May 30, 2024
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, GS CALTEX CORPORATION
    Inventors: Mun Gyu Bak, Ju Seong Park, Dae Sik Kim, Seok Jin Yong, Hyung Tak Lee, Ha Kyu Seo
  • Patent number: 11577277
    Abstract: The present invention provides a glass wool cutting device. The device includes a cutting section housing that has a cutting section chamber, a feed port that is connected to the cutting section chamber, and a discharge port that is connected to the cutting section chamber. A stationary knife is disposed on the cutting section housing to protrude into the cutting section chamber and a movable cutter that has a rotary support body is disposed in the cutting section chamber and a movable knife is supported on the rotary support body to apply a shearing force to the glass wool together with the stationary knife. Additionally, a cutter actuator provides a driving force to the rotary support body.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: February 14, 2023
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Dae Ha Co., LTD.
    Inventors: Han Ki Lee, Mun Gyu Bak, Hak Soo Kim, Ju Seong Park, A Rom Oh, Seung Chan Baek, Song Woo Nam, Ju Hong Kim
  • Patent number: 10745547
    Abstract: A polypropylene composite resin composition includes: 30 to 70% by weight of high crystalline block copolymer polypropylene, based on the total weight of the polypropylene composite resin composition; 10 to 20% by weight of a rubber elastomer, based on the total weight of the polypropylene composite resin composition; 10 to 18% by weight of a reinforcing material, based on the total weight of the polypropylene composite resin composition; 2 to 4% by weight of a mercaptosilane coupling agent, based on the total weight of the polypropylene composite resin composition; and 1 to 5% by weight of a slip agent, based on the total weight of the polypropylene composite resin composition.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: August 18, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation, DAE Ha Co., Ltd.
    Inventors: Hak Soo Kim, Han Ki Lee, Mun Gyu Bak, Wan Ho Son, Jae Hyun Choi
  • Patent number: 10465066
    Abstract: A polypropylene composite resin composition and an automotive interior part molded using the polypropylene composite resin composition are provided herein. The polypropylene composite resin composition contains: (a) an easily injection moldable polypropylene polymer, (b) a thermoplastic elastomer for improving impact resistance, (c) a platy inorganic filler surface-treated with an organosilane having affinity for a phytoncide, (d) a phytoncide having deodorizing capability and aromaticity, (e) a processing oil preventing pyrolysis of the phytoncide, and (f) a surfactant for improving the compatibility between the base resin and the phytoncide at specific compositional ratios. The automotive interior part molded using the polypropylene composite resin composition disclosed herein provides a pleasant environment for drivers by removing the offensive odor from volatile organic compounds (VOCs), etc. and maintaining the intrinsic scent of the phytoncide for a long time.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: November 5, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation, GS Caltex
    Inventors: Han Ki Lee, Mun Gyu Bak, Cheol Hee Park, Seung Hyun Lee, Jae Min Kim
  • Publication number: 20190292091
    Abstract: The present invention provides a glass wool cutting device. The device includes a cutting section housing that has a cutting section chamber, a feed port that is connected to the cutting section chamber, and a discharge port that is connected to the cutting section chamber. A stationary knife is disposed on the cutting section housing to protrude into the cutting section chamber and a movable cutter that has a rotary support body is disposed in the cutting section chamber and a movable knife is supported on the rotary support body to apply a shearing force to the glass wool together with the stationary knife. Additionally, a cutter actuator provides a driving force to the rotary support body.
    Type: Application
    Filed: October 19, 2018
    Publication date: September 26, 2019
    Inventors: Han Ki Lee, Mun Gyu Bak, Hak Soo Kim, Ju Seong Park, A Rom Oh, Seung Chan Baek, Song Woo Nam, Ju Hong Kim
  • Publication number: 20190185652
    Abstract: A polypropylene composite resin composition includes: 30 to 70% by weight of high crystalline block copolymer polypropylene, based on the total weight of the polypropylene composite resin composition; 10 to 20% by weight of a rubber elastomer, based on the total weight of the polypropylene composite resin composition; 10 to 18% by weight of a reinforcing material, based on the total weight of the polypropylene composite resin composition; 2 to 4% by weight of a mercaptosilane coupling agent, based on the total weight of the polypropylene composite resin composition; and 1 to 5% by weight of a slip agent, based on the total weight of the polypropylene composite resin composition.
    Type: Application
    Filed: December 6, 2018
    Publication date: June 20, 2019
    Inventors: Hak Soo KIM, Han Ki LEE, Mun Gyu BAK, Wan Ho SON, Jae Hyun CHOI
  • Publication number: 20180334561
    Abstract: A polypropylene complex resin composition for low-temperature injection molding, may include (A) a polypropylene resin; (B) an olefin-based elastomer; (C) an inorganic reinforcing agent; and (D) an additive, wherein (A) the polypropylene resin is a polypropylene mixed resin including: about 100 parts by weight of (A-1) a high-crystalline ethylene-propylene copolymer having an isotactic index of about 98 to 100% and a melt flow index value of about 20 to 50 g/10 min (2.16 kg, 230° C.); and about 5 to 20 parts by weight of (A-2) an ultrahigh fluidity homopolypropylene having a melt flow index value of about 1,000 to 1,800 g/10 min (2.16 kg, 230° C.).
    Type: Application
    Filed: November 8, 2017
    Publication date: November 22, 2018
    Applicants: Hyundai Motor Company, Kia Motors Corporation, Hyundai EP Co., Ltd.
    Inventors: Hak Soo Kim, Han Ki LEE, Yong Ho KIM, Dae Sik KIM, Mun Gyu BAK, Ju Seong PARK, Beom Ho KIM, Hyeok LEE, Hoi Jin CHOI
  • Publication number: 20180163036
    Abstract: A polypropylene composite resin composition and an automotive interior part molded using the polypropylene composite resin composition are provided herein. The polypropylene composite resin composition contains: (a) an easily injection moldable polypropylene polymer, (b) a thermoplastic elastomer for improving impact resistance, (c) a platy inorganic filler surface-treated with an organosilane having affinity for a phytoncide, (d) a phytoncide having deodorizing capability and aromaticity, (e) a processing oil preventing pyrolysis of the phytoncide, and (f) a surfactant for improving the compatibility between the base resin and the phytoncide at specific compositional ratios. The automotive interior part molded using the polypropylene composite resin composition disclosed herein provides a pleasant environment for drivers by removing the offensive odor from volatile organic compounds (VOCs), etc. and maintaining the intrinsic scent of the phytoncide for a long time.
    Type: Application
    Filed: November 15, 2017
    Publication date: June 14, 2018
    Inventors: Han Ki Lee, Mun Gyu Bak, Cheol Hee PARK, Seung Hyun LEE, Jae Min KIM