Patents by Inventor Chang-Wan Son
Chang-Wan Son 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).
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Publication number: 20240072553Abstract: An electronic device includes a connector including a pair of terminals connected to a power source, a voltage sensor provided to detect a voltage between the pair of terminals, a communication device provided to perform communication with an external control device through a network, and a controller configured to determine whether the connector is separated from the power source based on a voltage variation between the pair of terminals, control the communication device to request the external control device to cut off power of the power source when the connector is separated from the power source, and control to perform self-discharge.Type: ApplicationFiled: May 3, 2023Publication date: February 29, 2024Inventors: Ji Wan Son, Taewoong Lim, Chan Woong Jo, Dong Seok Oh, Chang Hwan Kim
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Patent number: 11697385Abstract: The present disclosure relates to a crash pad for a vehicle and a manufacturing method thereof. In an embodiment, the crash pad for a vehicle includes: a skin layer configured to form an outer surface of a crash pad including an airbag module; a core layer formed on a lower surface of the skin layer; and a foam layer formed between the core layer and the skin layer, wherein the skin layer has a tensile strength of 15 to 120 kgf/cm2 and an elongation at break of 50 to 700% measured in accordance with JIS K6301 standard, and a bonding strength of 0.25 kgf/cm or more as measured in accordance with ISO 813 standard.Type: GrantFiled: September 30, 2020Date of Patent: July 11, 2023Assignee: HYUNDAI MOBIS CO., LTD.Inventors: Chang Wan Son, Do Hyoung Kim
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Publication number: 20230031664Abstract: An automotive crash pad and a method for manufacturing the same. The automotive crash pad includes: a skin layer forming the outer surface of the crash pad including an airbag module; a fiber-based layer formed on the lower surface of the skin layer; a cushion layer formed on the lower surface of the fiber-based layer and including slab foam; and a core layer formed on the lower surface of the cushion layer, wherein a laminate of the skin layer and the fiber-based layer has a tensile strength in a transverse direction (TD) of 5 to 50 kgf/3 cm and an elongation at break in the transverse direction (TD) of 40 to 220%.Type: ApplicationFiled: September 21, 2022Publication date: February 2, 2023Inventors: Do Hyung Kim, Chang Wan Son
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Patent number: 11242429Abstract: A composition for an automotive interior skin, a method for manufacturing the same, and an automotive interior skin manufactured using the same. The composition for an automotive interior skin includes: 30 wt % to 70 wt % of a polyol compound; 5 wt % to 40 wt % of dicyclohexylmethane-4,4?-diisocyanate; and 5 wt % to 30 wt % of an aromatic glycol-based chain extender.Type: GrantFiled: January 7, 2020Date of Patent: February 8, 2022Assignees: Hyundai Mobis Co., Ltd., DONGSUNG CORPORATION, HANWHA Q CELLS & ADVANCED MATERIALS CORPORATIONInventors: Chang Wan Son, Dae Young Kwon, Jae Chan Lee, Hoon Jeong Kim, Gyu Min Lee
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Publication number: 20220024401Abstract: An automotive crash pad and a method for manufacturing the same. The automotive crash pad includes: a skin layer forming the outer surface of the crash pad including an airbag module; a fiber-based layer formed on the lower surface of the skin layer; a cushion layer formed on the lower surface of the fiber-based layer and including slab foam; and a core layer formed on the lower surface of the cushion layer, wherein a laminate of the skin layer and the fiber-based layer has a tensile strength in transverse direction (TD) of 5 to 50 kgf/3 cm and an elongation at break in transverse direction (TD) of 40 to 220%.Type: ApplicationFiled: November 9, 2020Publication date: January 27, 2022Inventors: Do Hyung KIM, Chang Wan SON
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Publication number: 20210101550Abstract: The present disclosure relates to a crash pad for a vehicle and a manufacturing method thereof. In an embodiment, the crash pad for a vehicle includes: a skin layer configured to form an outer surface of a crash pad including an airbag module; a core layer formed on a lower surface of the skin layer; and a foam layer formed between the core layer and the skin layer, wherein the skin layer has a tensile strength of 15 to 120 kgf/cm2 and an elongation at break of 50 to 700% measured in accordance with JIS K6301 standard, and a bonding strength of 0.25 kgf/cm or more as measured in accordance with ISO 813 standard.Type: ApplicationFiled: September 30, 2020Publication date: April 8, 2021Inventors: Chang Wan SON, Do Hyoung KIM
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Publication number: 20200216602Abstract: A composition for an automotive interior skin, a method for manufacturing the same, and an automotive interior skin manufactured using the same. The composition for an automotive interior skin includes: 30 wt % to 70 wt % of a polyol compound; 5 wt % to 40 wt % of dicyclohexylmethane-4,4?-diisocyanate; and 5 wt % to 30 wt % of an aromatic glycol-based chain extender.Type: ApplicationFiled: January 7, 2020Publication date: July 9, 2020Inventors: Chang Wan SON, Dae Young KWON, Jae Chan LEE, Hoon Jeong KIM, Gyu Min LEE
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Patent number: 10385182Abstract: The present invention relates to a crash pad for a vehicle and a manufacturing method thereof. In one embodiment, the method for manufacturing the crash pad for the vehicle comprises a step of injecting a skin foam-forming composition between a lower mold having a color coating layer formed thereon and an upper mold having a core layer formed thereon, foaming the injected skin foam-forming composition to form a skin foam layer, wherein the color coating layer is formed by applying the color coating composition to the inside surface of the lower mold and curing the applied color coating composition.Type: GrantFiled: March 22, 2017Date of Patent: August 20, 2019Assignee: Hyundai Mobis Co., Ltd.Inventors: Chang Wan Son, Hyeon Don Kim, Heayeon Lee
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Publication number: 20180118913Abstract: The present invention relates to a crash pad for a vehicle and a manufacturing method thereof. In one embodiment, the method for manufacturing the crash pad for the vehicle comprises a step of injecting a skin foam-forming composition between a lower mold having a color coating layer formed thereon and an upper mold having a core layer formed thereon, foaming the injected skin foam-forming composition to form a skin foam layer, wherein the color coating layer is formed by applying the color coating composition to the inside surface of the lower mold and curing the applied color coating composition.Type: ApplicationFiled: March 22, 2017Publication date: May 3, 2018Applicant: HYUNDAI MOBIS CO., LTD.Inventors: Chang Wan SON, Hyeon Don KIM, Heayeon LEE
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Patent number: 9855688Abstract: The present invention provides a thermoplastic polyurethane composition for injection molding and a method of manufacturing the same. The thermoplastic polyurethane composition for injection molding can be easily injection-molded since a slip property is imparted to a soft segment, and can possess excellent durability properties such as heat-aging resistance, photoaging resistance, and wear resistance, and stability properties such as airbag deployment performance and anti-fogging property, as well as excellent tactile sensation and embossing quality, when a chain extender and a multifunctional polydimethylsiloxane-based compound are mixed with an isocyanate- and ether-containing polyester polyol, and can be useful in simplifying processes, reducing manufacturing costs, and simplifying facilities due to a decrease in the number of parts when molded articles are manufactured using the composition.Type: GrantFiled: December 17, 2015Date of Patent: January 2, 2018Assignees: Hyundai Motor Company, Kia Motor Corporation, Dongsung Corporation, Hyundai Mobis Co., Ltd.Inventors: Gye Young Ahn, Dae Young Kwon, Hyeon Don Kim, Chang Wan Son, Hea Yeon Lee
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Patent number: 9744931Abstract: The present invention relates to a crash pad for vehicles and a method for preparing the same, and more specifically, a crash pad for vehicles comprising a skin layer forming the outer surface of the crash pad provided with an air-bag module for vehicles; a foaming layer in intimate contact with the lower surface of the skin layer; and a core layer in intimate contact with the lower surface of the foaming layer to form an inner surface, wherein the skin layer has a tensile strength of about 10 to about 100 kgf/cm2 and an elongation at break of about 50 to about 600% according to JIS K6301 method when it has a layer thickness of about 0.2 mm to about 1.0 mm.Type: GrantFiled: February 26, 2015Date of Patent: August 29, 2017Assignee: HYUNDAI MOBIS CO., LTD.Inventors: Chang Wan Son, Hea Yeon Lee, Yong Chun, Hyeon Don Kim
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Publication number: 20170029554Abstract: The present invention provides a thermoplastic polyurethane composition for injection molding and a method of manufacturing the same. The thermoplastic polyurethane composition for injection molding can be easily injection-molded since a slip property is imparted to a soft segment, and can possess excellent durability properties such as heat-aging resistance, photoaging resistance, and wear resistance, and stability properties such as airbag deployment performance and anti-fogging property, as well as excellent tactile sensation and embossing quality, when a chain extender and a multifunctional polydimethylsiloxane-based compound are mixed with an isocyanate- and ether-containing polyester polyol, and can be useful in simplifying processes, reducing manufacturing costs, and simplifying facilities due to a decrease in the number of parts when molded articles are manufactured using the composition.Type: ApplicationFiled: December 17, 2015Publication date: February 2, 2017Applicants: Hyundai Motor Company, Kia Motors Corporation, Dongsung Corporation, Hyundai Mobis Co., Ltd.Inventors: Gye Young AHN, Dae Young KWON, Hyeon Don KIM, Chang Wan SON, Hea Yeon LEE
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Patent number: 9217079Abstract: A long fiber-reinforced thermoplastic resin composition having improved impact resistance, includes: (A) a long fiber reinforcement; (B) an ethylene-propylene copolymer; (C) a first thermoplastic elastomer; (D) a second thermoplastic elastomer; (E) a functional group-grafted modified polypropylene resin; and (F) an inorganic filler.Type: GrantFiled: November 25, 2014Date of Patent: December 22, 2015Assignees: HYUNDAI MOBIS CO., LTD., GS CALTEX CORPORATIONInventors: Chang Wan Son, Hyeon Don Kim, Eun Seon Jeon, Yong Chun, Ha Kyu Seo, Seung Hyun Lee, Woong Jae Boo
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Publication number: 20150251620Abstract: The present invention relates to a crash pad for vehicles and a method for preparing the same, and more specifically, a crash pad for vehicles comprising a skin layer forming the outer surface of the crash pad provided with an air-bag module for vehicles; a foaming layer in intimate contact with the lower surface of the skin layer; and a core layer in intimate contact with the lower surface of the foaming layer to form an inner surface, wherein the skin layer has a tensile strength of about 10 to about 100 kgf/cm2 and an elongation at break of about 50 to about 600% according to JIS K6301 method when it has a layer thickness of about 0.2 mm to about 1.0 mm.Type: ApplicationFiled: February 26, 2015Publication date: September 10, 2015Inventors: Chang Wan Son, Hea Yeon Lee, Yong Chun, Hyeon Don Kim
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Publication number: 20150159003Abstract: A long fiber-reinforced thermoplastic resin composition having improved impact resistance, includes: (A) a long fiber reinforcement; (B) an ethylene-propylene copolymer; (C) a first thermoplastic elastomer; (D) a second thermoplastic elastomer; (E) a functional group-grafted modified polypropylene resin; and (F) an inorganic filler.Type: ApplicationFiled: November 25, 2014Publication date: June 11, 2015Inventors: Chang Wan Son, Hyeon Don Kim, Eun Seon Jeon, Yong Chun, Ha Kyu Seo, Seung Hyun Lee, Woong Jae Boo
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Publication number: 20050094923Abstract: The invention relates to a fabrication of an integrated optical isolator using a Multi-Mode Interference (MMI) structure and a cladding layer comprising magneto-optical material, which remove needless reflection generated in the course of light propagation and make short length integration possible. Thus, the invention uses nonreciprocal phase shift effect that optical characteristics are altered according to the direction of light propagation. In order to fabricate a light waveguide optical isolator, an input light should be separated into two light waveguides having the same power. That is, for the purpose of reducing the length of optical isolator device, the waveguide length needed to separate an input light into two light waveguides should be shortened. Since the light waveguide length of MMI structure is much shorter than the length of Mach-Zehnder light waveguide for separating an input light into two waveguides, the length of optical isolator device using MMI structure can be reduced.Type: ApplicationFiled: September 30, 2004Publication date: May 5, 2005Applicant: Korea Institute of Science and TechnologyInventors: Young-Il Kim, Tae-Hoon Yoon, Seok Lee, Deok-Ha Woo, Sun-Ho Kim, Hi-Jung Kim, Gwan-Su Lee, Sung-Kyu Kim, Min-Chul Park, Chang-Wan Son