Patents by Inventor Sam Choi

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).

  • Patent number: 8926300
    Abstract: 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: Grant
    Filed: February 27, 2012
    Date of Patent: January 6, 2015
    Assignee: Hyundai Motor Company
    Inventors: Han Saem Lee, Do Suck Han, Jin Woo Kwak, Chi Hoon Choi, Kyong Hwa Song, Byung Sam Choi
  • Patent number: 8912481
    Abstract: Disclosed is a motion detection switch, and more particularly a motion detection switch which can recognize motion of a reflector moved at an upper side of a display part of a mobile phone, and can control the mobile phone without any touching operation. The motion detection switch recognizes motion of a reflection body moved at an upper side of a display part of a portable terminal and controls the portable terminal, including a base which is disposed at an upper side of a main body of the portable terminal having the display part, which is outside the display part; a light receiving device which is disposed at the base; a plurality of light emitting devices which are disposed at the base so as to be symmetric with respect to the light receiving device; and a control device which operates the light emitting devices.
    Type: Grant
    Filed: July 12, 2012
    Date of Patent: December 16, 2014
    Assignee: Hysonic Co., Ltd.
    Inventors: He Won Jung, Jun Sam Choi
  • Publication number: 20140339461
    Abstract: 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: Application
    Filed: August 1, 2014
    Publication date: November 20, 2014
    Inventors: Kyong Hwa Song, Han Saem Lee, Jin Woo Kwak, Byung Sam Choi
  • Publication number: 20140285419
    Abstract: Disclosed is a display apparatus which is driven by a motion detection sensor, and more particularly, to a display apparatus in which power, volume, channel or the like are controlled by a motion detection sensor. The display apparatus of the present invention includes a display part which displays an image; a support stand which supports the display part; a power source which supplies power to the display part; a motion detection sensor which is installed at an edge surface of the display part so as to detect an operation signal of an object in a contactless manner; and a main control part which controls the display part based on a detection signal from the motion detection sensor, wherein the motion detection sensor is installed so as to be oriented toward an outer surface of the display part, thereby detecting a motion signal at the outer surface of the display part.
    Type: Application
    Filed: September 25, 2012
    Publication date: September 25, 2014
    Applicant: HYSONIC. CO., LTD.
    Inventors: He Won Jung, Jun Sam Choi, Gi Hong Kim
  • Patent number: 8829063
    Abstract: 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: Grant
    Filed: July 3, 2012
    Date of Patent: September 9, 2014
    Assignee: Hyundai Motor Company
    Inventors: Kyong Hwa Song, Han Saem Lee, Jin Woo Kwak, Byung Sam Choi
  • Publication number: 20140220343
    Abstract: The present invention relates to an insulating wire and, more particularly, to an insulating wire having partial discharge resistance that exhibits excellent partial discharge resistance and high partial discharge inception voltage and also excellences in the adhesion between the conductor and the insulation layer and the flexibility of the insulation layer, which insulating wire can be prepared by a simple process at a low production cost.
    Type: Application
    Filed: January 23, 2014
    Publication date: August 7, 2014
    Applicant: LS Cable & System Ltd.
    Inventors: Hyung-Sam CHOI, Joon-Hee Lee, Bo-Kyung Kim, Dong-Jin Seo, Jae-Geon Lee
  • Publication number: 20140182335
    Abstract: A method of cutting chemically toughened glass which is chemically toughened in a chemical toughening process of creating compressive stress in the surface of glass by exchanging first alkali ions in the glass with second alkali ions. The method includes the steps of applying a paste on a portion of the chemically toughened glass that is to be cut, heating the paste, and cutting the chemically toughened glass along the portion on which the paste is applied. The paste contains alkali ions. The ion radius of the alkali ions in the paste is smaller than an ion radius of the second alkali ions which substitute the first ions in the chemical toughening process.
    Type: Application
    Filed: January 2, 2014
    Publication date: July 3, 2014
    Applicant: SAMSUNG CORNING PRECISION MATERIALS CO., LTD.
    Inventors: Hoikwan Lee, Youngseok Lee, Jae Chang Lee, Jaeho Lee, Jihoon Lee, Seo-Yeong Cho, Jaemin Cha, Ho-Sam Choi
  • Publication number: 20140111530
    Abstract: An apparatus for buffering a signal delay between display devices in a multi-display environment includes: a delay setting unit for storing a delay time value and providing the delay time value to a signal input controller; a storage unit for storing and outputting an image signal according to the control of the signal input controller; and the signal input controller for controlling an input of an image signal from an image processor to a display module, the signal input controller controlling the image signal input from the image processor to be stored in the storage unit and then input to the display module after a delay as much as the delay time value. Since an image signal input time difference of all display devices is buffered to offset a display time difference of the display devices, it is possible to prevent image quality from deteriorating.
    Type: Application
    Filed: October 15, 2013
    Publication date: April 24, 2014
    Applicant: Orion Co., Ltd.
    Inventor: Su Sam Choi
  • Publication number: 20140105716
    Abstract: The present invention relates to an apparatus for transferring a substrate. The apparatus includes a supporting member; an elevating and rotating member; a transferring unit; a first arm whose one end is supported by the elevating and rotating member to be rotatable; a second arm whose one end is supported by the transferring unit to be rotatable and whose the other end is supported by the other end of the first arm to be rotatable; and an arm driving part, installed on the first arm, which drives the other end of the second arm to pivot on the other end of the first arm to allow the first arm and the second arm to be folded or unfolded and thus removes the state of singularity by rotating the other end of the second arm based on the other end of the first arm.
    Type: Application
    Filed: October 2, 2013
    Publication date: April 17, 2014
    Applicant: TES Co., Ltd.
    Inventors: Soo Jong LEE, Eun Jae CHOI, Sung Pyo LEE, Byoung Sam CHOI, Yoon Bum KIM, Hyeon Ju KIM, Jae Wan PARK, Jeong Yong KIM, Chang Hyun JEE, Jae Ok PARK
  • Publication number: 20130299732
    Abstract: 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: Application
    Filed: July 24, 2012
    Publication date: November 14, 2013
    Applicant: HYUNDAI MOTOR COMPANY
    Inventors: Jin Woo Kwak, Kyong Hwa Song, Han Saem Lee, Byung Sam Choi
  • Publication number: 20130277439
    Abstract: 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: Application
    Filed: August 23, 2012
    Publication date: October 24, 2013
    Applicant: HYUNDAI MOTOR COMPANY
    Inventors: Jin Woo Kwak, Kyong Hwa Song, Byung Sam Choi, Han Saem Lee
  • Publication number: 20130266837
    Abstract: 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: Application
    Filed: July 11, 2012
    Publication date: October 10, 2013
    Applicant: HYUNDAI MOTOR COMPANY
    Inventors: Han Saem Lee, Kyong Hwa Song, Jin Woo Kwak, Byung Sam Choi
  • Publication number: 20130264511
    Abstract: 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: Application
    Filed: July 13, 2012
    Publication date: October 10, 2013
    Applicant: HYUNDAI MOTOR COMPANY
    Inventors: Byung Sam Choi, Kyong Hwa Song, Han Saem Lee, Jin Woo Kwak
  • Publication number: 20130252040
    Abstract: 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: Application
    Filed: July 2, 2012
    Publication date: September 26, 2013
    Applicant: HYUNDAI MOTOR COMPANY
    Inventors: Jin Woo Kwak, Kyong Hwa Song, Han Saem Lee, Young Joon Chang, Byung Sam Choi
  • Publication number: 20130240261
    Abstract: 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: Application
    Filed: May 25, 2012
    Publication date: September 19, 2013
    Applicant: HYUNDAI MOTOR COMPANY
    Inventors: Kyong Hwa Song, Han Saem Lee, Jin Woo Kwak, Byung Sam Choi
  • Publication number: 20130244078
    Abstract: 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: Application
    Filed: July 3, 2012
    Publication date: September 19, 2013
    Applicant: HYUNDAI MOTOR COMPANY
    Inventors: Jin Woo Kwak, Kyong Hwa Song, Han Saem Lee, You Sung Moon, Byung Sam Choi
  • Publication number: 20130237621
    Abstract: 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: Application
    Filed: July 3, 2012
    Publication date: September 12, 2013
    Applicant: HYUNDAI MOTOR COMPANY
    Inventors: Jin Woo Kwak, Han Saem Lee, Kyong Hwa Song, Byung Sam Choi
  • Publication number: 20130221285
    Abstract: Disclosed is a hybrid polymer composite for electromagnetic wave shielding, and a method for fabricating the same. Specifically, the hybrid polymer composite may be fabricated by combining a microcapsule that is surface coated with at least one carbon nanotube and includes a phase change material (PCM), whose phase easily transitions from solid to liquid upon exposure to heat, with at least one carbon fiber and a matrix polymer. The disclosed hybrid polymer composite has enhanced electromagnetic wave shielding properties that result, in part, from the ability of the PCM to dissipate and remove heat generated by electromagnetic absorption. Additionally, the disclosed composite has excellent conductivity due to its polymer properties and the formation of a network between fillers and the polymer.
    Type: Application
    Filed: May 1, 2012
    Publication date: August 29, 2013
    Applicant: HYUNDAI MOTOR COMPANY
    Inventors: Kyong Hwa SONG, Han Saem LEE, Jin Woo KWAK, Byung Sam CHOI
  • Patent number: 8518574
    Abstract: Disclosed are a heat control pouch and a battery cell module having the same. The heat control pouch is interposed between battery cells. The heat control pouch includes a high thermal conductivity case having a sealed internal space, a phase change composite filled in the internal space of the high thermal conductivity case, and an elasticity sheet attached to both upper and lower surfaces of the high thermal conductivity case. Here, the elasticity sheet is formed of a thermoplastic elastomer composite containing a high thermal conductivity filler.
    Type: Grant
    Filed: May 9, 2012
    Date of Patent: August 27, 2013
    Assignee: Hyundai Motor Company
    Inventors: Jin Woo Kwak, Kyong Hwa Song, Han Saem Lee, Byung Sam Choi
  • Patent number: D704933
    Type: Grant
    Filed: October 18, 2012
    Date of Patent: May 20, 2014
    Inventor: Byeong Sam Choi