Patents by Inventor Chang-Min Hong

Chang-Min Hong 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: 11674243
    Abstract: A woven article for a carbon fiber reinforced plastic according to the present invention is a woven article of a spun yarn containing: about 10 wt % to about 60 wt % of a carbon fiber staple in which the content of carbon components is equal to or greater than about 97 wt %; and about 40 wt % to about 90 wt % of a thermoplastic resin fiber, wherein the carbon fiber staple is obtained by carbonizing carbon fiber reinforced plastic scrap at a temperature of about 900 to about 1400° C. The woven article for a carbon fiber reinforced plastic includes a carbon fiber staple manufactured from scrap generated during manufacture of the carbon fiber reinforced plastic, and allows economic recycling of the carbon fiber reinforced plastic scrap without a reduction in mechanical properties. When molded, productivity is high due to a short cycle time, there is almost no orientation, and an excellent flexural modulus is exhibited.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: June 13, 2023
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Kyun Ha Ban, Yun Seok Bae, Chang Min Hong
  • Patent number: 11578190
    Abstract: Disclosed are a resin composite having excellent soundproofing and mechanical properties, and a molded product including the same. The resin composite may include a resin composition, porous particles and a reinforcing material, and the molded product including the same include no volatile organic compounds (VOCs). As consequence, displeasure caused by generation of the VOCs and exhaust of toxic gas during combustion may be reduced thereby being environmentally friendly. Further, the resin composite and the molded product including the same demonstrate sufficient mechanical strength and may thus be directly applied to a housing or the like of an apparatus which generates noise without introduction of any additional soundproofing material. For example, the resin composite and the molded product may include a specific content of the porous particles having pores having a specific size to secure an appropriate volume fraction and may thus efficiently and economically block noise transmission.
    Type: Grant
    Filed: April 13, 2020
    Date of Patent: February 14, 2023
    Assignees: Hyundai Motor Company, Kia Motors Corporation, CEPLA Co., Ltd.
    Inventors: Sung Jun Kim, Chang Min Hong
  • Publication number: 20220077162
    Abstract: A semiconductor memory device includes a static random access memory (SRAM) cell that is provided on a substrate and includes a pass-gate transistor, a pull-down transistor, and a pull-up transistor. Each of the pass-gate transistor, the pull-down transistor, and the pull-up transistor includes an active fin protruding above a device isolation layer, a gate electrode on the active fin, and a gate insulating layer between the active fin and the gate electrode. The gate insulating layer of the pull-down transistor includes a first dipole element. The highest concentration of the first dipole element of the gate insulating layer of the pull-down transistor is higher than the highest concentration of the first dipole element of the gate insulating layer of the pass-gate transistor.
    Type: Application
    Filed: March 8, 2021
    Publication date: March 10, 2022
    Inventors: HEE BUM HONG, HEESUNG SHIN, HOJOON LEE, YOUNGHUN JUNG, CHANG-MIN HONG
  • Publication number: 20220056254
    Abstract: A polyolefin thermoplastic elastomer composition for an airbag chute, includes a polypropylene, an olefin block copolymer, and a dendrimer as a material applied to a raw material of a passenger airbag chute. An olefin elastomer composite resin composition for an airbag chute includes 30-80 parts by weight of a polypropylene resin, 30-70 parts by weight of an olefin block copolymer, and 0.1-5 parts by weight of a dendrimer based on 100 parts by weight of the olefin elastomer composite resin composition. The olefin elastomer composite resin composition for an airbag chute, improves the dispersion of the elastomer by applying a high-flow elastomer and a low-flow polypropylene, and improves flowability and meltability characteristics without deteriorating physical properties by applying the dendrimer.
    Type: Application
    Filed: July 2, 2019
    Publication date: February 24, 2022
    Applicant: CEPLA CO., LTD.
    Inventors: Chang Won CHAE, Sung Yeon LEE, Chang Min HONG, Jong Soo PARK, Jae Myung RHEE, Jin Young HUH, Kyu Haeng CHO, Dae Keun KIM, Gwang Ho GO, Poong Hyun CHOI
  • Publication number: 20220056264
    Abstract: A non-painted thermoplastic resin composition including viscose rayon so as to embody a marble pattern and a method for making it are disclosed. The viscose rayon is included in the thermoplastic resin composition to minimize the deterioration of physical properties while minimizing weld lines and flow marks during an extrusion process, and a luxurious outer appearance of a marble pattern is embodied without additional post-processing or painting process. The non-painted thermoplastic resin composition includes 80-90 parts by weight of a thermoplastic resin composition, 0.1-5 parts by weight of a carbon fiber, and 0.1-3 parts by weight of viscose rayon based on 100 parts by weight of the entire resin composition. The viscose rayon provides an effect of minimizing weld lines and flow marks during injection, improving physical properties, and providing the luxurious appearance of the marble pattern.
    Type: Application
    Filed: September 23, 2019
    Publication date: February 24, 2022
    Applicant: CEPLA CO., LTD.
    Inventors: Chang Won CHAE, Sung Yeon LEE, Chang Min HONG, Jin Young HUH, Kyu Haeng CHO, Dae Keun KIM, Gwang Ho GO, Moon Young LEE, Hyuk Soo KWON, Hee Jong PARK, Yeung In KIM
  • Patent number: 10995208
    Abstract: A thermoplastic resin composition of the present invention comprises: approximately 100 parts by weight of a thermoplastic resin including a repeat unit represented by Chemical Formula 1, a repeat unit represented by Chemical Formula 2, and a repeat unit represented by Chemical Formula 3; and approximately 5 to 40 parts by weight of a reinforcing filler. The thermoplastic resin composition is excellent in terms of heat resistance, stiffness, lightweight properties, and external appearance, and exhibits excellent balance between said physical properties.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: May 4, 2021
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Yun Seok Bae, Kyun Ha Ban, Chang Min Hong
  • Publication number: 20210095099
    Abstract: Disclosed are a resin composite having excellent soundproofing and mechanical properties, and a molded product including the same. The resin composite may include a resin composition, porous particles and a reinforcing material, and the molded product including the same include no volatile organic compounds (VOCs). As consequence, displeasure caused by generation of the VOCs and exhaust of toxic gas during combustion may be reduced thereby being environmentally friendly. Further, the resin composite and the molded product including the same demonstrate sufficient mechanical strength and may thus be directly applied to a housing or the like of an apparatus which generates noise without introduction of any additional soundproofing material. For example, the resin composite and the molded product may include a specific content of the porous particles having pores having a specific size to secure an appropriate volume fraction and may thus efficiently and economically block noise transmission.
    Type: Application
    Filed: April 13, 2020
    Publication date: April 1, 2021
    Inventors: Sung Jun Kim, Chang Min Hong
  • Patent number: 10822486
    Abstract: A thermoplastic resin composition of the present invention comprises: an acrylate-based rubber-modified vinyl-based graft copolymer; aromatic vinyl-cyanide vinyl-based copolymer resin; a first dulling agent; and a second dulling agent, wherein the first dulling agent is a copolymer (PS-g-SAN) in which a styrene-acrylonitrile copolymer is graft-polymerized in polystyrene, and the second dulling agent is a copolymer in which a styrene-acrylonitrile copolymer is graft-polymerized in a poly(ethylene-co-glycidyl methacrylate). The thermoplastic resin composition has excellent low-light properties, impact resistance and fluidity.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: November 3, 2020
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Ji Eun Park, Kee Hae Kwon, In Choi Kim, Hyeong Seob Shin, Chang Min Hong
  • Patent number: 10822492
    Abstract: The present invention relates to a thermoplastic resin composition and a molded product containing the same, the composition comprising: a base resin comprising a polycarbonate resin, a polyester resin, and a polyalkyl(meth)acrylate resin; a diene-based impact modifier; and an acrylic impact modifier.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: November 3, 2020
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Jeong Eun Park, Hee Yun Jeong, Kee Hae Kwon, Chang Min Hong
  • Patent number: 10793710
    Abstract: A thermoplastic resin composition of the present invention contains: a first aromatic vinyl-based resin, which is a copolymer of an aromatic vinyl-based monomer and a maleic acid anhydride; a second aromatic vinyl-based resin, which is a copolymer of an aromatic vinyl-based monomer, a maleic acid anhydride, and a maleimide-based monomer represented by chemical formula 1; a rubber-modified vinyl-based graft copolymer; and a reinforcing filler. The thermoplastic resin composition is excellent in view of heat resistance, rigidity, dimensional stability, and the like.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: October 6, 2020
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Yun Seok Bae, Kyun Ha Ban, Chang Min Hong
  • Patent number: 10723876
    Abstract: A thermoplastic resin composition and a molded article including the same.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: July 28, 2020
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Jeong Eun Park, Hee Yun Jeong, Kee Hae Kwon, Chang Min Hong
  • Patent number: 10717868
    Abstract: The present invention relates to a polyamide/polyphenylene ether resin composition containing: a base resin comprising polyphenylene ether, a polyamide and an impact modifier; a compatibilizer; and a polyamine, and to: a polyamide/polyphenylene ether resin composition having a notched Izod impact strength of about 12 kJ/m2 or more when measured at 23° C. according to the ISO 180 standard, and a number of checkerboard lattices, in which peeling off occurs, being about 5% or less of the total number of checkerboard lattices in a 1 mm-gap checkerboard pattern test for testing adhesion to acrylic paints and melamine-based paints according to the JIS K5600-5-6 standard; and a preparation method therefor.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: July 21, 2020
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Won Young Choi, Doo Young Kim, Kyun Ha Ban, Chang Min Hong
  • Patent number: 10669396
    Abstract: A thermoplastic resin composition for automobiles, and a molded product produced from the composition, includes a semi-aromatic polyamide resin; a first chelate agent that includes an amino group and at least one of a carboxylic acid and salt thereof; a second chelate agent that includes an aliphatic multivalent C1 to C10 carboxylic acid (not including a carbon atom of a carboxyl group) having 2 to 4 carboxyl groups; and a filler.
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: June 2, 2020
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Hyoungtaek Kang, Chang Min Hong
  • Patent number: 10577729
    Abstract: Disclosed herein is spun yarn and a method of preparing the same. The spun yarn includes carbon staple fibers including about 97 wt % or more of carbon, and thermoplastic resin fibers. The spun yarn includes carbon staple fibers prepared from scrap generated during manufacture of carbon fiber-reinforced plastic products, and can have good mechanical properties and conductivity.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: March 3, 2020
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Kyun Ha Ban, Yun Seok Bae, Chang Min Hong
  • Publication number: 20190264353
    Abstract: A woven article for a carbon fiber reinforced plastic according to the present invention is a woven article of a spun yarn containing: about 10 wt % to about 60 wt % of a carbon fiber staple in which the content of carbon components is equal to or greater than about 97 wt %; and about 40 wt % to about 90 wt % of a thermoplastic resin fiber, wherein the carbon fiber staple is obtained by carbonizing carbon fiber reinforced plastic scrap at a temperature of about 900 to about 1400° C. The woven article for a carbon fiber reinforced plastic includes a carbon fiber staple manufactured from scrap generated during manufacture of the carbon fiber reinforced plastic, and allows economic recycling of the carbon fiber reinforced plastic scrap without a reduction in mechanical properties. When molded, productivity is high due to a short cycle time, there is almost no orientation, and an excellent flexural modulus is exhibited.
    Type: Application
    Filed: October 30, 2017
    Publication date: August 29, 2019
    Inventors: Kyun Ha BAN, Yun Seok BAE, Chang Min HONG
  • Patent number: 10387500
    Abstract: A semiconductor device includes a fin, first to fourth gate electrodes, first and second storage devices, first and second search terminals, and first and second dummy search terminals. The fin extend in a first direction. The gate electrodes intersecting the fin. The storage devices are connected with the gate electrodes. The first search terminal is connected with the second gate electrode and is spaced from the fin by a first distance. The second search terminal is connected with the third gate electrode and is spaced from the fin by a second distance different from the first distance. The first dummy search terminal is connected with the second gate electrode and is spaced from the fin by the second distance. The second dummy search terminal is connected with the third gate electrode and is spaced from the fin by the first distance.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: August 20, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hee Bum Hong, Chang Min Hong
  • Publication number: 20190248994
    Abstract: A thermoplastic resin composition of the present invention comprises: approximately 100 parts by weight of a thermoplastic resin including a repeat unit represented by Chemical Formula 1, a repeat unit represented by Chemical Formula 2, and a repeat unit represented by Chemical Formula 3; and approximately 5 to 40 parts by weight of a reinforcing filler. The thermoplastic resin composition is excellent in terms of heat resistance, stiffness, lightweight properties, and external appearance, and exhibits excellent balance between said physical properties.
    Type: Application
    Filed: October 30, 2017
    Publication date: August 15, 2019
    Inventors: Yun Seok BAE, Kyun Ha BAN, Chang Min HONG
  • Patent number: 10364348
    Abstract: A thermoplastic resin composition and a molded article including the same are disclosed herein. The thermoplastic resin composition includes a base resin including a polycarbonate (PC) resin and a polyester resin, inorganic fillers, and an aromatic (meth)acrylate polymer, wherein the aromatic (meth)acrylate polymer is a copolymer of a monomer mixture including a vinyl cyanide monomer, an aromatic vinyl monomer, and an aromatic (meth)acrylate.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: July 30, 2019
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Jeong Eun Park, Kee Hae Kwon, Chang Min Hong
  • Publication number: 20190185655
    Abstract: A thermoplastic resin composition of the present invention comprises: an acrylate-based rubber-modified vinyl-based graft copolymer; aromatic vinyl-cyanide vinyl-based copolymer resin; a first dulling agent; and a second dulling agent, wherein the first dulling agent is a copolymer (PS-g-SAN) in which a styrene-acrylonitrile copolymer is graft-polymerized in polystyrene, and the second dulling agent is a copolymer in which a styrene-acrylonitrile copolymer is graft-polymerized in a poly(ethylene-co-glycidyl methacrylate). The thermoplastic resin composition has excellent low-light properties, impact resistance and fluidity.
    Type: Application
    Filed: August 25, 2017
    Publication date: June 20, 2019
    Inventors: Ji Eun PARK, Kee Hae KWON, In Chol KIM, Hyeong Seob SHIN, Chang Min HONG
  • Patent number: 10316188
    Abstract: A thermoplastic resin composition for automobiles and a molded part for automobiles manufactured using the same is disclosed. The thermoplastic resin composition for automobiles includes: a semi-aromatic polyamide resin; an aliphatic polyamide resin; a first chelating agent including an amino group and a carboxyl group acid or a salt thereof; a second chelating agent including a C1 to C10 (not including carbon of carboxyl group) aliphatic polyhydric carboxylic acid having two to four carboxyl groups; and fillers. The thermoplastic resin composition for automobiles can have good long-term thermal stability and can maintain mechanical properties despite exposure to high temperature for a long time, and thus can be easily applied to peripheral parts of an automobile engine compartment.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: June 11, 2019
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Hyoung Taek Kang, Jae Youp Chung, Chang Min Hong