Patents by Inventor Byung-sam Choi
Byung-sam Choi 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: 20240110170Abstract: The present disclosure relates to a modified polypeptide having xylanase activity and the use thereof.Type: ApplicationFiled: December 15, 2021Publication date: April 4, 2024Applicant: CJ CHEILJEDANG CORPORATIONInventors: Tae Joo YANG, Jihyun SHIM, Eun Jung CHOI, Byung-sam SON, Jae Yong PARK
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Patent number: 10375858Abstract: Disclosed is a housing for electronic/electrical that includes an inner panel and an outer panel, a strip of metal plate, and a strip of shape memory material. The inner panel and the outer panel are disposed parallel to each other at regular intervals to define an internal space. The strip of metal plate extends from an inner surface of the outer panel. The strip of shape memory material extends from an inner surface of the inner panel and is attached or detached to/from the metal plate on the outer panel while changing into an original straight shape or a bent shape according to a temperature variation. Here, when the temperature increase beyond a first transition temperature, the shape memory material straightens to form a heat transfer path. At a low temperature environment, the shape memory material bends and is separated from the metal plate to interrupt the heat transfer path.Type: GrantFiled: February 27, 2017Date of Patent: August 6, 2019Assignee: Hyundai Motor CompanyInventors: Jin Woo Kwak, Kyong Hwa Song, Byung Sam Choi, Han Saem Lee
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Publication number: 20170172013Abstract: Disclosed is a housing for electronic/electrical that includes an inner panel and an outer panel, a strip of metal plate, and a strip of shape memory material. The inner panel and the outer panel are disposed parallel to each other at regular intervals to define an internal space. The strip of metal plate extends from an inner surface of the outer panel. The strip of shape memory material extends from an inner surface of the inner panel and is attached or detached to/from the metal plate on the outer panel while changing into an original straight shape or a bent shape according to a temperature variation. Here, when the temperature increase beyond a first transition temperature, the shape memory material straightens to form a heat transfer path. At a low temperature environment, the shape memory material bends and is separated from the metal plate to interrupt the heat transfer path.Type: ApplicationFiled: February 27, 2017Publication date: June 15, 2017Inventors: Jin Woo Kwak, Kyong Hwa Song, Byung Sam Choi, Han Saem Lee
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Patent number: 9603288Abstract: A housing for electronic/electrical components includes an inner panel and an outer panel, a strip of metal plate, and a strip of shape memory material. The inner panel and the outer panel are disposed parallel to each other to define an internal space. The strip of metal plate extends from an inner surface of the outer panel. The strip of shape memory material extends from an inner surface of the inner panel and is attached to or detached from the metal plate on the outer panel while changing into an original straight shape or a bent shape according to a temperature variation. When the temperature increases beyond a first transition temperature, the shape memory material straightens to form a heat transfer path. When the temperature falls below a second transition temperature, the shape memory material bends and is separated from the metal plate to interrupt the heat transfer path.Type: GrantFiled: August 23, 2012Date of Patent: March 21, 2017Assignee: Hyundai Motor CompanyInventors: Jin Woo Kwak, Kyong Hwa Song, Byung Sam Choi, Han Saem Lee
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Patent number: 9401500Abstract: A battery and battery package is disclosed which improves a battery's heat dissipation capability by using an aluminum material and a phase change material capable of maintaining a suitable temperature through phase change according to a temperature in order to prevent a battery from being deteriorated in terms of performance. More specifically, battery package has a top case and a bottom case as a battery cell case for housing a battery cell. The top and bottom cases are adhered to each other, and either or both the top and bottom cases includes: a top sheet plate repeatedly undulated at predetermined intervals to form a plurality of unidirectionally extended convex parts to be filled with a phase change material; a bottom sheet plate formed in a flat shape and adhered to the top sheet plate; and a phase change material filled in between the convex parts and the bottom sheet plate.Type: GrantFiled: November 23, 2011Date of Patent: July 26, 2016Assignee: Hyundai Motor CompanyInventors: Jin Woo Kwak, Kyong Hwa Song, Han Saem Lee, Byung Sam Choi, Chi Hoon Choi
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Patent number: 9296935Abstract: Disclosed is a micro particle for a thermal control material capable of being applied as a highly thermal conductive material for thermal control, and an apparatus and a method of producing the micro particle for the thermal control material by using an ultrasonic high-temperature vibration scheme. More specifically, a Boron Nitride (BN) particle having a plate shape and an excellent thermal conductivity is coated on a PCM having a shape of a micro bead, to increase the thermal conduction to the inside PCM, so that a phase change is easily generated, and which allows an easy treatment of the PCM in a liquid state at a temperature equal to or higher than a melting point of the PCM.Type: GrantFiled: December 2, 2014Date of Patent: March 29, 2016Assignee: Hyundai Motor CompanyInventors: Han Saem Lee, Do Suck Han, Jin Woo Kwak, Chi Hoon Choi, Kyong Hwa Song, Byung Sam Choi
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Patent number: 9296871Abstract: The present disclosure provides a high heat radiation composite material including a hybrid filler comprising expanded graphite filled with expandable polymeric beads, and a fabrication method thereof. In the method, a dispersion solution is prepared by dispersing expandable polymeric beads in ethanol. Expanded graphite is immersed in the dispersion solution, and heat-treated to remove ethanol, thereby producing the hybrid filler. The hybrid filler is dispersed into the matrix polymer via an extrusion/injection process, thereby producing the composite material.Type: GrantFiled: August 1, 2014Date of Patent: March 29, 2016Assignee: Hyundai Motor CompanyInventors: Kyong Hwa Song, Han Saem Lee, Jin Woo Kwak, Byung Sam Choi
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Patent number: 9065160Abstract: Disclosed is a radiant heat plate and a battery cell module having the same. The radiant heat plate is interposed between battery cells. The radiant heat plate includes a high-thermal conductivity plate with excellent thermal conductivity and a composite sheet fixedly laminated on both surfaces of the high-thermal conductivity plate. Here, the composite sheet is formed of a thermoplastic elastomer composite filled with a high-thermal conductivity filler.Type: GrantFiled: April 11, 2012Date of Patent: June 23, 2015Assignee: Hyundai Motor CompanyInventors: Jin Woo Kwak, Kyong Hwa Song, Han Saem Lee, Byung Sam Choi
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Publication number: 20150152308Abstract: Disclosed is a micro particle for a thermal control material capable of being applied as a highly thermal conductive material for thermal control, and an apparatus and a method of producing the micro particle for the thermal control material by using an ultrasonic high-temperature vibration scheme. More specifically, a Boron Nitride (BN) particle having a plate shape and an excellent thermal conductivity is coated on a PCM having a shape of a micro bead, to increase the thermal conduction to the inside PCM, so that a phase change is easily generated, and which allows an easy treatment of the PCM in a liquid state at a temperature equal to or higher than a melting point of the PCM.Type: ApplicationFiled: December 2, 2014Publication date: June 4, 2015Inventors: Han Saem Lee, Do Suck Han, Jin Woo Kwak, Chi Hoon Choi, Kyong Hwa Song, Byung Sam Choi
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Patent number: 9017570Abstract: Disclosed is a hybrid filler for an electromagnetic shielding composite material and a method of manufacturing the hybrid filler, by which electromagnetic shielding and absorbing capabilities are improved and heat generated by electromagnetic absorption is effectively removed. The hybrid filler for an electromagnetic shielding composite material includes an expandable graphite (EG) having a plurality of pores, and magnetic particles integrated with a carbon nanotube (CNT) on outer surfaces thereof in a mixed manner, wherein the magnetic particles are inserted into the pores of the EG.Type: GrantFiled: July 24, 2012Date of Patent: April 28, 2015Assignee: Hyundai Motor CompanyInventors: Jin Woo Kwak, Kyong Hwa Song, Han Saem Lee, Byung Sam Choi
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Patent number: 8926300Abstract: Disclosed is a micro particle for a thermal control material capable of being applied as a highly thermal conductive material for thermal control, and an apparatus and a method of producing the micro particle for the thermal control material by using an ultrasonic high-temperature vibration scheme. More specifically, a Boron Nitride (BN) particle having a plate shape and an excellent thermal conductivity is coated on a PCM having a shape of a micro bead, to increase the thermal conduction to the inside PCM, so that a phase change is easily generated, and which allows an easy treatment of the PCM in a liquid state at a temperature equal to or higher than a melting point of the PCM.Type: GrantFiled: February 27, 2012Date of Patent: January 6, 2015Assignee: Hyundai Motor CompanyInventors: Han Saem Lee, Do Suck Han, Jin Woo Kwak, Chi Hoon Choi, Kyong Hwa Song, Byung Sam Choi
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Publication number: 20140339461Abstract: The present disclosure provides a high heat radiation composite material including a hybrid filler comprising expanded graphite filled with expandable polymeric beads, and a fabrication method thereof. In the method, a dispersion solution is prepared by dispersing expandable polymeric beads in ethanol. Expanded graphite is immersed in the dispersion solution, and heat-treated to remove ethanol, thereby producing the hybrid filler. The hybrid filler is dispersed into the matrix polymer via an extrusion/injection process, thereby producing the composite material.Type: ApplicationFiled: August 1, 2014Publication date: November 20, 2014Inventors: Kyong Hwa Song, Han Saem Lee, Jin Woo Kwak, Byung Sam Choi
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Patent number: 8829063Abstract: The present disclosure provides a high heat radiation composite material including a hybrid filler comprising expanded graphite filled with expandable polymeric beads, and a fabrication method thereof. In the method, a dispersion solution is prepared by dispersing expandable polymeric beads in ethanol. Expanded graphite is immersed in the dispersion solution, and heat-treated to remove ethanol, thereby producing the hybrid filler. The hybrid filler is dispersed into the matrix polymer via an extrusion/injection process, thereby producing the composite material.Type: GrantFiled: July 3, 2012Date of Patent: September 9, 2014Assignee: Hyundai Motor CompanyInventors: Kyong Hwa Song, Han Saem Lee, Jin Woo Kwak, Byung Sam Choi
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Publication number: 20130299732Abstract: Disclosed is a hybrid filler for an electromagnetic shielding composite material and a method of manufacturing the hybrid filler, by which electromagnetic shielding and absorbing capabilities are improved and heat generated by electromagnetic absorption is effectively removed. The hybrid filler for an electromagnetic shielding composite material includes an expandable graphite (EG) having a plurality of pores, and magnetic particles integrated with a carbon nanotube (CNT) on outer surfaces thereof in a mixed manner, wherein the magnetic particles are inserted into the pores of the EG.Type: ApplicationFiled: July 24, 2012Publication date: November 14, 2013Applicant: HYUNDAI MOTOR COMPANYInventors: Jin Woo Kwak, Kyong Hwa Song, Han Saem Lee, Byung Sam Choi
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Publication number: 20130277439Abstract: Disclosed is a housing for electronic/electrical that includes an inner panel and an outer panel, a strip of metal plate, and a strip of shape memory material. The inner panel and the outer panel are disposed parallel to each other at regular intervals to define an internal space. The strip of metal plate extends from an inner surface of the outer panel. The strip of shape memory material extends from an inner surface of the inner panel and is attached or detached to/from the metal plate on the outer panel while changing into an original straight shape or a bent shape according to a temperature variation. Here, when the temperature increase beyond a first transition temperature, the shape memory material straightens to form a heat transfer path. At a low temperature environment, the shape memory material bends and is separated from the metal plate to interrupt the heat transfer path.Type: ApplicationFiled: August 23, 2012Publication date: October 24, 2013Applicant: HYUNDAI MOTOR COMPANYInventors: Jin Woo Kwak, Kyong Hwa Song, Byung Sam Choi, Han Saem Lee
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Publication number: 20130266837Abstract: Disclosed is a heat radiation plate for a battery module, which can effectively radiate heat accumulated in a battery module, and the battery module having the heat radiation plate. To this end, the heat radiation plate is inserted in an interlayer manner between battery cells. The heat radiation plate includes high-polymer matrix layers and a filler layer inserted in an interlayer manner between the high-polymer matrix layers, in which the filler layer is made of a conductive fiber having a three-dimensional (3D) web structure.Type: ApplicationFiled: July 11, 2012Publication date: October 10, 2013Applicant: HYUNDAI MOTOR COMPANYInventors: Han Saem Lee, Kyong Hwa Song, Jin Woo Kwak, Byung Sam Choi
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Publication number: 20130264511Abstract: Disclosed is a composite material for shielding broadband electromagnetic waves and a method for its production. More particularly, a composite material for shielding broadband electromagnetic waves that absorbs low frequency electromagnetic waves and reflects high frequency electromagnetic waves is disclosed. The composite material for shielding broadband electromagnetic waves may be a polymer composite prepared by mixing a matrix composition including a matrix-forming polymer impregnated with a carbonaceous conductive nano material with a filler composite including a filler-forming polymer impregnated with a magnetic material. The magnetic material impregnated in the filler-forming polymer may be distributed in the matrix composite.Type: ApplicationFiled: July 13, 2012Publication date: October 10, 2013Applicant: HYUNDAI MOTOR COMPANYInventors: Byung Sam Choi, Kyong Hwa Song, Han Saem Lee, Jin Woo Kwak
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Publication number: 20130252040Abstract: The present invention provides a heat control plate and a battery cell module having the same. The heat control plate is used as an interfacial component interposed between battery cells. The heat control plate includes a planar composite sheet, a plurality of heat radiating ribbons, a planar heating layer, and a conductive strap. The plurality of heat radiating ribbons penetrate the composite sheet and protrude from both right and left sides of the composite sheet at both ends thereof. The planar heating layer is attached to one or both of upper and lower surfaces of the composite sheet and generates heat upon application of a voltage. The conductive strap applies a supply voltage to the planar heating layer. The planar composite sheet can have a high thermal conductivity. The planar composite sheet can have a thermal conductivity greater than about 3 W/mK.Type: ApplicationFiled: July 2, 2012Publication date: September 26, 2013Applicant: HYUNDAI MOTOR COMPANYInventors: Jin Woo Kwak, Kyong Hwa Song, Han Saem Lee, Young Joon Chang, Byung Sam Choi
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Publication number: 20130244078Abstract: Disclosed is a radiating apparatus for a battery cell which uses an interface plate which can effectively radiate heat accumulated in the battery. In particular, an aluminum-elastomer structure composite material with excellent thermal conductivity is used as the interface plate. Further, the radiating apparatus includes an outer case having cooling channels, through which cooling air passes to discharge heat generated from a battery cell, and a battery cell and an interface plate which are provided within the outer case and which are alternately stacked to make surface-contact with each other. The interface plate advantageously discharges the heat accumulated in the battery cell using aluminum-elastomer structure composite material.Type: ApplicationFiled: July 3, 2012Publication date: September 19, 2013Applicant: HYUNDAI MOTOR COMPANYInventors: Jin Woo Kwak, Kyong Hwa Song, Han Saem Lee, You Sung Moon, Byung Sam Choi
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Publication number: 20130240261Abstract: The present disclosure provides a composite material for shielding an electromagnetic wave, and more particularly, a composite material for shielding an electromagnetic wave, which can effectively shield an electromagnetic wave generated in an electronic component. The composite material of the disclosure has a multi-layer structure including: an electromagnetic wave-shielding layer for shielding an electromagnetic wave; and a thermally conductive layer stacked under the electromagnetic wave-shielding layer for dissipating heat generated when the electromagnetic wave is absorbed, wherein the electromagnetic wave-shielding layer includes a material including a magnetic material and a carbon-based conductive material added to a thermoplastic resin.Type: ApplicationFiled: May 25, 2012Publication date: September 19, 2013Applicant: HYUNDAI MOTOR COMPANYInventors: Kyong Hwa Song, Han Saem Lee, Jin Woo Kwak, Byung Sam Choi