Patents by Inventor Won-hyo Kim
Won-hyo Kim 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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Patent number: 11969941Abstract: Provided is a binder jetting 3D printer capable of continuous printing, wherein a box assembly is supplied by a horizontal movement guide means, a 3D object is built with binder jetting within a build box, and the box assembly in which the 3D object is built is withdrawn, thereby printing 3D objects continuously. In particular, provided is a binder jetting 3D printer capable of continuous printing, wherein a box assembly including a powder supply box and a build box is simplified by integrating the boxes and a lifting and lowering process of a supply plate and of a build plate is facilitated, thereby reducing the time taken for a 3D printing process and thus improving productivity.Type: GrantFiled: June 22, 2021Date of Patent: April 30, 2024Assignee: KLABS.INCInventors: Won Hyo Kim, Do Young Kim
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Adhesive protective film, optical member comprising the same and optical display comprising the same
Patent number: 11958993Abstract: Disclosed herein are an adhesive protective film, an optical member including the same, and an optical display including the same. An adhesive protective film is formed of a composition including a (meth)acrylic binder derived from a monomer mixture including: an alkyl group-containing (meth)acrylic monomer; and at least one selected from among a hydroxyl group-containing (meth)acrylic monomer, a carboxyl group-containing (meth)acrylic monomer, and a polysiloxane (meth)acrylate, the adhesive protective film having an initial peel strength of about 100 gf/inch or less and a peel strength decrease rate of about 50% or less, as calculated according to Equation 1.Type: GrantFiled: May 27, 2021Date of Patent: April 16, 2024Assignee: Samsung SDI Co., Ltd.Inventors: Irina Nam, Tae Ji Kim, Won Kim, Il Jin Kim, Jung Hyo Lee, Oh Hyeon Hwang -
Patent number: 11921080Abstract: The gas sensor according to an exemplary embodiment of the present invention comprises: an FET device including one or more gate electrodes; a sensor array part including a plurality of sensors, in which a first electrode of each sensor is connected to at least one gate electrode of the plurality of gate electrodes in the FET device; and a controller detecting a gas using a current between a drain-source in response to voltage changes in the gate electrode of the FET device, wherein each sensor includes: a first electrode connected to a gate electrode of the FET device; a second electrode receiving an operating voltage through a switch controlled by the controller; and a detection film interposed between the first electrode and the second electrode.Type: GrantFiled: December 31, 2020Date of Patent: March 5, 2024Assignee: KOREA ELECTRONICS TECHNOLOGY INSTITUTEInventors: Kook Nyung Lee, Woo Kyeong Seong, Won Hyo Kim, Dong Ki Hong, Hye Lim Kang
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Publication number: 20230073404Abstract: A pressure sensor is proposed. The pressure sensor may include a base substrate, and at least one sensing electrode formed on the base substrate. The pressure sensor may also include an electrode wire electrically connected to one side of the sensing electrode, extending on the base substrate, and formed at one side of a power connection part. The pressure sensor may further include an insulative adhesive layer coated on a region of the base substrate other than a region on which the sensing electrode is formed. The pressure sensor may further include a resistant substrate which is stacked on and coupled to the base substrate by the adhesive layer and on one surface of which a resistor is formed to be spaced apart from and face the sensing electrode in a stacking direction. According to embodiments, it is possible to effectively achieve flexible response of a pressure sensor for external pressure.Type: ApplicationFiled: October 26, 2022Publication date: March 9, 2023Inventors: Won Hyo KIM, Woo Kyeong SEONG, Kook Nyung LEE, Su Mi YOON, Dong Ki HONG, Young Joo KIM, Hye Lim KANG
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Publication number: 20220341797Abstract: A conductive yarn pressure sensor is proposed. The pressure sensor may include a porous fiber layer having predetermined cavities formed therein. The pressure sensor may also include a first sensing electrode made of a first conductive yarn formed on one surface of the porous fiber layer, and a second sensing electrode made of a second conductive yarn formed on the other surface of the porous fiber layer. The first sensing electrode or the second sensing electrode may be provided so as to be in contact with each other in the cavities of the porous fiber layer due to external pressure. According to an embodiment, by having conductive yarn in flexible clothing or textile material, pressure can be sensed by effectively responding to deformation due to external pressure.Type: ApplicationFiled: July 7, 2022Publication date: October 27, 2022Inventors: Won Hyo KIM, Woo Kyeong SEONG, Kook Nyung LEE, Su Mi YOON, Dong Ki HONG, Young Joo KIM, Hye Lim KANG
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Publication number: 20220187144Abstract: This application relates to a pressure sensor. In one aspect, the sensor includes a base material and a through-hole formed to pass through the upper surface and the lower surface of the base material. The sensor may also include a conductive thread sensor including conductive thread that passes through the through-hole. According to some embodiments, the pressure sensor is implemented through a structural combination of the conductive thread and the base material so that the degree of design freedom can be effectively increased in the application of a variety of recent wearable flexible materials.Type: ApplicationFiled: March 1, 2022Publication date: June 16, 2022Inventors: Won Hyo KIM, Woo Kyeong SEONG, Kook Nyung LEE, Su Mi YOON, Dong Ki HONG, Young Joo KIM, Hye Lim KANG
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Patent number: 11347318Abstract: The described technology relates to a hand gesture recognition sensor. In one aspect, the hand gesture recognition sensor includes at least one strain unit configured to measure a physical change in an epidermis of a human body. The hand gesture recognition sensor also includes at least one bump unit located in a measurement direction of the at least one strain unit so as not to overlap the at least one strain unit, the at least one bump unit configured to amplify the physical change.Type: GrantFiled: May 12, 2020Date of Patent: May 31, 2022Assignee: Korea Electronics Technology InstituteInventors: Yeon Hwa Kwak, Kun Nyun Kim, Won Hyo Kim
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Publication number: 20220136914Abstract: Disclosed are a pressure sensor using conductive thread, the pressure sensor including a plurality of first conductive lines arranged parallel to each other in a first direction in a state of being spaced apart from each other, a plurality of second conductive lines arranged parallel to each other in a second direction intersecting the first direction in a state of being spaced apart from each other, and a spacer located between the plurality of first conductive lines and the plurality of second conductive lines, resistance of the spacer being changed when pressure is applied thereto, whereby it is possible to measure a wide range of pressure with elasticity and flexibility, and a method of manufacturing the same.Type: ApplicationFiled: October 28, 2021Publication date: May 5, 2022Inventors: Won Hyo KIM, Woo Kyeong SEONG, Kook Nyung LEE, Su Mi YOON, Dong Ki HONG, Young Joo KIM, Hye Lim KANG
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Publication number: 20220088871Abstract: Provided is a binder jetting 3D printer capable of continuous printing, wherein a box assembly is supplied by a horizontal movement guide means, a 3D object is built with binder jetting within a build box, and the box assembly in which the 3D object is built is withdrawn, thereby printing 3D objects continuously. In particular, provided is a binder jetting 3D printer capable of continuous printing, wherein a box assembly including a powder supply box and a build box is simplified by integrating the boxes and a lifting and lowering process of a supply plate and of a build plate is facilitated, thereby reducing the time taken for a 3D printing process and thus improving productivity.Type: ApplicationFiled: June 22, 2021Publication date: March 24, 2022Inventors: Won Hyo KIM, Do Young KIM
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Publication number: 20210318264Abstract: A bio sensor using a FET element and an extended gate, and an operating method thereof are disclosed. A biosensor using a field effect transistor (FET) device and an extended gate electrode according to the present invention is characterized by comprising: an extended gate electrode connected to the FET element; a sensing electrode made of the same material as the extended gate electrode and on which a receptor antibody selectively recognizing a target molecule is fixed; and a reference electrode that maintains a constant potential and is selectively connected to the sensing electrode.Type: ApplicationFiled: December 31, 2020Publication date: October 14, 2021Inventors: Kook Nyung LEE, Woo Kyeong SEONG, Won Hyo KIM
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Publication number: 20210255139Abstract: The gas sensor according to an exemplary embodiment of the present invention comprises: an FET device including one or more gate electrodes; a sensor array part including a plurality of sensors, in which a first electrode of each sensor is connected to at least one gate electrode of the plurality of gate electrodes in the FET device; and a controller detecting a gas using a current between a drain-source in response to voltage changes in the gate electrode of the FET device, wherein each sensor includes: a first electrode connected to a gate electrode of the FET device; a second electrode receiving an operating voltage through a switch controlled by the controller; and a detection film interposed between the first electrode and the second electrode.Type: ApplicationFiled: December 31, 2020Publication date: August 19, 2021Inventors: Kook Nyung LEE, Woo Kyeong SEONG, Won Hyo KIM, Dong Ki HONG, Hye Lim KANG
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Publication number: 20210162661Abstract: A three-dimensional (3D) printing apparatus includes a housing, a plurality of nozzle assemblies each including a nozzle portion and a heater, a moving grip portion capable of being separated from or fastened to any one of the plurality of nozzle assemblies, a driving portion formed in the housing and configured to move the moving grip portion in three axial directions, and a standby frame on which at least one of the plurality of nozzle assemblies is mounted. Here, each of the plurality of nozzle assemblies includes a first coupling portion. The moving grip portion includes a second coupling portion capable of being magnetically coupled with the first coupling portion. Any one of the first coupling portion and the second coupling portion is formed of a magnetic body, and the other of the first coupling portion and the second coupling portion is formed of an electromagnet.Type: ApplicationFiled: February 28, 2020Publication date: June 3, 2021Inventor: Won Hyo KIM
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Patent number: 10996848Abstract: The described technology relates to a wearable electronic device. The wearable electronic device may include a touch display, a rim surrounding the touch display, a rim touch sensor disposed on at least a portion of the rim, a band portion that allows the wearable electronic device to be worn on a user's wrist, and a control unit configured to receive a rim touch on the rim through the rim touch sensor and generate a control signal for controlling the wearable electronic device based on at least one of attributes of the rim touch.Type: GrantFiled: February 12, 2020Date of Patent: May 4, 2021Assignee: Korea Electronics Technology InstituteInventors: Kunnyun Kim, Yeonhwa Kwak, Won Hyo Kim, Kwang Bum Park
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Patent number: 10918311Abstract: Provided are a method and a system for monitoring a movement of a user. The system includes at least one wearable flexible tactile sensor configured to sense movement of a muscle or bending of a joint at a corresponding location and transmitting a sensed value. The system further includes a monitoring server configured to analyze movement of the muscle or the bending of the joint of the user based on the sensed value received from the flexible tactile sensor motility of the user.Type: GrantFiled: February 7, 2018Date of Patent: February 16, 2021Assignee: Korea Electronics Technology InstituteInventors: Kunnyun Kim, Kwang Bum Park, Won Hyo Kim, Yeon Hwa Kwak
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Patent number: 10898120Abstract: Provided is a system for monitoring a state of a user. The system includes a chair including a backrest and a seat plate, at least one flexible tactile sensor positioned in the back plate or seat plate and configured to sense a motion of a user who sits on the chair. The system further includes a monitoring apparatus configured to monitor the state of the user based on the sensed value received from at least one flexible tactile sensor.Type: GrantFiled: April 16, 2018Date of Patent: January 26, 2021Assignee: KOREA ELECTRONICS TECHNOLOGY INSTITUTEInventors: Kunnyun Kim, Kwang Bum Park, Won Hyo Kim, Yeon Hwa Kwak
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Patent number: 10884504Abstract: A wearable device is disclosed. In one embodiment, the device includes: a sensor array having a plurality of sensors each detecting a physical change in epidermis of a corresponding body area and a body movement determination unit configured to determine movement of a body part based on sensing signals respectively received from the plurality of sensors.Type: GrantFiled: January 17, 2018Date of Patent: January 5, 2021Assignee: KOREA ELECTRONICS TECHNOLOGY INSTITUTEInventors: Kunnyun Kim, Kwang Bum Park, Won Hyo Kim, Yeon Hwa Kwak
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Publication number: 20200272241Abstract: The described technology relates to a hand gesture recognition sensor. In one aspect, the hand gesture recognition sensor includes at least one strain unit configured to measure a physical change in an epidermis of a human body. The hand gesture recognition sensor also includes at least one bump unit located in a measurement direction of the at least one strain unit so as not to overlap the at least one strain unit, the at least one bump unit configured to amplify the physical change.Type: ApplicationFiled: May 12, 2020Publication date: August 27, 2020Inventors: Yeon Hwa KWAK, Kun Nyun KIM, Won Hyo KIM
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Publication number: 20200183576Abstract: The described technology relates to a wearable electronic device. The wearable electronic device may include a touch display, a rim surrounding the touch display, a rim touch sensor disposed on at least a portion of the rim, a band portion that allows the wearable electronic device to be worn on a user's wrist, and a control unit configured to receive a rim touch on the rim through the rim touch sensor and generate a control signal for controlling the wearable electronic device based on at least one of attributes of the rim touch.Type: ApplicationFiled: February 12, 2020Publication date: June 11, 2020Inventors: Kunnyun KIM, Yeonhwa KWAK, Won Hyo KIM, Kwang Bum PARK
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Patent number: 10599327Abstract: The described technology relates to a wearable electronic device. The wearable electronic device may include a touch display, a rim surrounding the touch display, a rim touch sensor disposed on at least a portion of the rim, a band portion that allows the wearable electronic device to be worn on a user's wrist, and a control unit configured to receive a rim touch on the rim through the rim touch sensor and generate a control signal for controlling the wearable electronic device based on at least one of attributes of the rim touch.Type: GrantFiled: October 8, 2015Date of Patent: March 24, 2020Assignee: Korea Electronics Technology InstituteInventors: Kunnyun Kim, Yeonhwa Kwak, Won Hyo Kim, Kwang Bum Park
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Patent number: 10578501Abstract: Provided are a flexible tactile sensor and a method for manufacturing the same. The flexible tactile sensor includes a polymer layer, a first metal layer formed over the polymer layer and a first sensor layer formed over the first metal layer, the first sensor layer comprising a strain gauge configured to change its resistance according to a first strain and a metal wire connected to the strain gauge. The flexible tactile sensor also includes a first cover layer configured to protect the first sensor layer, a second metal layer formed under the polymer layer, a second sensor layer formed under the second metal layer. The second sensor layer includes a strain gauge configured to change its resistance according to a second strain and a metal wire connected to the strain gauge of the second metal layer and a second cover layer configured to protect the second sensor layer.Type: GrantFiled: February 7, 2018Date of Patent: March 3, 2020Assignee: Korea Electronics Technology InstituteInventors: Kunnyun Kim, Kwang Bum Park, Won Hyo Kim, Yeon Hwa Kwak