Patents by Inventor Kyoung-tae Kim
Kyoung-tae 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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Publication number: 20200342829Abstract: An output amplifier includes an input unit including first and second input transistors, and a first bias transistor between a connection node of a source of the first input transistor and a source of the second input transistor and a first voltage source, a first current mirror including first and second transistors connected in series at a first connection node and between a second voltage source and a second connection node, and third and fourth transistors connected in series at a third connection node and between the second voltage source and a fourth connection node, and a second current mirror including fifth and sixth transistors between a fifth connection node and the first voltage source and connected in series at a sixth connection node, and seventh and eighth transistors between a seventh connection node and the first voltage source.Type: ApplicationFiled: April 28, 2020Publication date: October 29, 2020Inventors: Mun Gyu KIM, Kyoung Tae KIM, Jae Hong KO
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Patent number: 10811197Abstract: Various examples are provided for hydrothermally grown BaTiO3, SrTiO3, and BaxSr1?xTiO3 on TiO2 nanotube layers, which can be used in ultra-high charge density capacitors. In one example, a method includes forming a first anodized titanium oxide (ATO) layer on a layer of titanium by anodization, the first ATO layer having a nanotubular morphology; removing the first ATO layer from the layer of titanium; forming a second ATO layer having a nanotubular morphology on the layer of titanium by anodization; and hydrothermally growing a layer of MTiO3 on a surface of the second ATO layer, where M is Ba, Sr, or BaxSr1?x. In another example, an ultra-high density charge capacitor includes a first electrode layer; an ATO layer disposed on the first electrode layer; a layer of MTiO3 on a surface of the ATO layer; and a second electrode layer disposed on the layer of MTiO3.Type: GrantFiled: December 21, 2016Date of Patent: October 20, 2020Assignee: UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INC.Inventors: Kyoung Tae Kim, Yong-Kyu Yoon, Dongsu Kim
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Patent number: 10775848Abstract: A rollable display apparatus including a main body portion extending in a length direction and including a metallic material. The rollable display apparatus further includes a flexible display panel protruding from an outer surface of the main body portion. A portion of the flexible display panel is connected to the main body portion. The rollable display apparatus additionally includes a support portion. The flexible display panel is attached to a first surface of the support portion, and the support portion includes an extension portion extending from the support portion and beyond an edge of the flexible display panel, and the extension portion includes a magnet that attaches the flexible display panel to the main body portion.Type: GrantFiled: June 13, 2017Date of Patent: September 15, 2020Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Kyoung Tae Kim, Young Jin Lee, Sung Su Hong
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Patent number: 10762825Abstract: Disclosed is a gamma correction circuit and method capable of minimizing power consumption by adding third and fourth input amplifiers receiving reference voltages which are identical to voltages to first and second input amplifiers, respectively, and deactivating the first and second input amplifiers during an always on display (AOD) mode. The gamma correction circuit includes a first input amplifier configured to output a maximum voltage when active, a second input amplifier configured to output a minimum voltage when active, a third input amplifier configured to output a highest gamma voltage in response to the first reference voltage, and a fourth input amplifier configured to output a lowest gamma voltage in response to the second reference voltage. The first and second input amplifiers are deactivated when the display driving device operates in the AOD mode.Type: GrantFiled: December 27, 2018Date of Patent: September 1, 2020Assignee: DB HiTek Co., Ltd.Inventors: Kyoung-Tae Kim, Seung-Jin Yeo, Mun-Gyu Kim, Jae-Hong Ko
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Patent number: 10729473Abstract: A fixing system for cervical vertebrae includes a fixing apparatus for cervical vertebrae in which a cervical vertebrae-fixing plate is made close contact with cervical vertebrae and a screw is inserted into the cervical vertebrae through a screw hole formed in the cervical vertebrae-fixing plate, and a driver that rotates the screw. Here, clips for holding the inserted screw are provided in the screw hole, a convex portion is positioned at the rear of a front end portion of the driver which is fitted in a groove on the screw, and the driver loosens the inserted screw while spreading the clips using the convex portion, when the inserted screw is loosened.Type: GrantFiled: November 11, 2015Date of Patent: August 4, 2020Assignee: KYUNGPOOK NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATIONInventor: Kyoung Tae Kim
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Patent number: 10702322Abstract: Provided are a medical insertion apparatus includes a screw body to be inserted into a body, and an electrode provided in the screw body and including an externally exposed portion, wherein a through-hole may be provided in the screw body or the electrode, and a medical insertion apparatus includes a screw body to be inserted into a body, and an electrode provided in the screw body and exposed to an outside of the screw body, wherein the screw body and the electrode may be provided in a connectable or separable structure.Type: GrantFiled: August 25, 2014Date of Patent: July 7, 2020Assignee: Kyungpook National University Industry-Academic Cooperation FoundationInventor: Kyoung Tae Kim
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Publication number: 20200020268Abstract: Disclosed is a gamma correction circuit and method capable of minimizing power consumption by adding third and fourth input amplifiers receiving reference voltages which are identical to voltages to first and second input amplifiers, respectively, and deactivating the first and second input amplifiers during an always on display (AOD) mode. The gamma correction circuit includes a first input amplifier configured to output a maximum voltage when active, a second input amplifier configured to output a minimum voltage when active, a third input amplifier configured to output a highest gamma voltage in response to the first reference voltage, and a fourth input amplifier configured to output a lowest gamma voltage in response to the second reference voltage. The first and second input amplifiers are deactivated when the display driving device operates in the AOD mode.Type: ApplicationFiled: December 27, 2018Publication date: January 16, 2020Inventors: Kyoung Tae KIM, Seung Jin YEO, Mun Gyu KIM, Jae Hong KO
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Patent number: 10504471Abstract: A half-power buffer and/or amplifier is disclosed. The half-power buffer and/or amplifier includes an amplifying unit including first and second transistors connected between a first voltage source having a first voltage and a third voltage source having a third voltage, and a first output node configured to connect the first and second transistors and to output a voltage over a first voltage range between the first and third voltages, a second output buffer unit including third and fourth transistors connected between a second voltage source having a second voltage and the third voltage source, and a second output node configured to connect the third and fourth transistors and to output a voltage over a second voltage range between the second and third voltages, and a first charge share switch unit connected between the gate of the second transistor and the first voltage source, and configured to perform a charge share and/or equalization operation.Type: GrantFiled: March 12, 2018Date of Patent: December 10, 2019Assignee: DB HiTek, Co., Ltd.Inventors: Mun Gyu Kim, Seung Jin Yeo, Dong Gwi Choi, Kyoung Tae Kim
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Publication number: 20190319467Abstract: Disclosed is a method for an electronic control unit to prevent the discharge of a battery. The method includes the steps of detecting an off signal of vehicle function power connected to a battery and monitoring a voltage of the battery, detecting a low voltage of the battery based on a result of the monitoring and transmitting an operation inhibition signal for preventing power consumption of the battery to a plurality of controllers, and determining whether the plurality of controllers switch to a sleep mode in response to the operation inhibition signal.Type: ApplicationFiled: April 11, 2019Publication date: October 17, 2019Applicant: Hyundai Autron Co., Ltd.Inventor: Kyoung Tae KIM
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Patent number: 10390863Abstract: A rod connector used in screw fixation to connect different rods includes a latch element including a latch section which is fitted to a first rod and a pass-through section having a through-hole, a support element including an up/down movement section which moves up and down through the through-hole and a support section which is a head part of the up/down movement section and has a support groove to support a second rod, and a fixing screw which approaches the up/down movement section through a screw hole formed in oblique direction within the latch element and presses the up/down movement section directly or indirectly, to fix the support element at a predetermined height.Type: GrantFiled: December 22, 2016Date of Patent: August 27, 2019Assignee: KYUNGPOOK NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATIONInventor: Kyoung Tae Kim
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Patent number: 10318944Abstract: A Near Field Communication (NFC) terminal for performing secure payment includes an NFC unit and a control unit. The NFC unit communicates with an external payment terminal and the payment unit transmits results obtained by processing transaction information and an electronic signature value of the transaction information to the payment terminal using the NFC unit. The payment terminal requests an external payment server to perform payment. An authentication certificate applet included in the payment unit generates the electronic signature value of the transaction information. An electronic wallet applet included in the payment unit transmits the results obtained by processing the transaction information and the electronic signature value to the payment terminal.Type: GrantFiled: December 21, 2011Date of Patent: June 11, 2019Assignee: KT CorporationInventors: Jae Min Park, Kyoung Tae Kim
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Patent number: 10278659Abstract: The present invention relates to a C-arm head cover. The C-arm head cover according to the present invention comprises: a fixed unit which includes a fixing means, and is capable of being fixed to a predetermined object; a first cover which extends from the fixed unit, and has a foldable structure; and a second cover which extends from the first cover, and is bent downward, wherein when the C-arm head rotates 180 degrees from an upright position around a C-arm table for supporting a person to be processed with radiography, the foldable structure of the first cover is unfolded, and then only the first cover or both the first cover and the second cover covers the C-arm head.Type: GrantFiled: October 15, 2015Date of Patent: May 7, 2019Assignee: Kyungpook National University Industry—Academic Cooperation FoundationInventor: Kyoung Tae Kim
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Patent number: 10244641Abstract: A display device includes a display panel including a bending area that is bendable along an axis extending in a first direction, and a panel support portion that supports the display panel in the bending area. The panel support portion includes a plurality of joint members, a plurality of rotational angle limiting members, and a plurality of connecting members. The joint members are sequentially arranged and support the display panel. Each joint member is rotatable about two rotation axes. The rotational angle limiting members are coupled to the joint members and limit rotational angles of the joint members. Each connecting member is coupled to a pair of the rotational angle limiting members disposed at a pair of adjacent joint members. The rotational angle limiting members included in the pair of rotational angle limiting members contact each other and are fixed to an inner portion of the corresponding connecting member.Type: GrantFiled: July 13, 2017Date of Patent: March 26, 2019Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jeong Eun Seo, Kyoung Tae Kim, Hye-Ryoung Park, Young Jin Lee
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Patent number: 10231764Abstract: A fixing apparatus for cervical vertebrae in which in which a fixing plate is made to be in proximity with cervical vertebrae and screws are inserted into the cervical vertebrae through screw holes formed in the fixing plate, includes an opening and closing member that opens and closes the screw holes while being moved between a closing position for covering the screw holes and an opening position for opening the screw hole on the fixing plate.Type: GrantFiled: November 11, 2015Date of Patent: March 19, 2019Assignee: KYUNGPOOK NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATIONInventor: Kyoung Tae Kim
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Publication number: 20190080660Abstract: A half-power buffer and/or amplifier is disclosed. The half-power buffer and/or amplifier includes an amplifying unit including first and second transistors connected between a first voltage source having a first voltage and a third voltage source having a third voltage, and a first output node configured to connect the first and second transistors and to output a voltage over a first voltage range between the first and third voltages, a second output buffer unit including third and fourth transistors connected between a second voltage source having a second voltage and the third voltage source, and a second output node configured to connect the third and fourth transistors and to output a voltage over a second voltage range between the second and third voltages, and a first charge share switch unit connected between the gate of the second transistor and the first voltage source, and configured to perform a charge share and/or equalization operation.Type: ApplicationFiled: March 12, 2018Publication date: March 14, 2019Inventors: Mun Gyu KIM, Seung Jin YEO, Dong Gwi CHOI, Kyoung Tae KIM
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Patent number: 10221078Abstract: Various examples are provided for multiferroic thin films. In one example, a multiferroic thin film device includes a thin film of multiferroic material and an electrode disposed on a side of the thin film of multiferroic material. The multiferroic material can be (Fex,Sr1-x)TiO3 In another example, a method for producing a multiferroic thin film includes forming a multiferroic precursor; disposing the multiferroic precursor on a substrate to form a multiferroic coating; pre-baking the multiferroic coating on the substrate to form a pre-baked multiferroic thin film; and annealing the pre-baked multiferroic thin film under an oxygen atmosphere to form a crystalized multiferroic thin film. One or more electrodes can be formed on the crystalized multiferroic thin film.Type: GrantFiled: September 2, 2015Date of Patent: March 5, 2019Assignee: University of Florida Research Foundation, Inc.Inventors: Kyoung Tae Kim, Yong Kyu Yoon
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Patent number: 10172658Abstract: Provided are a medical insertion apparatus including a screw body to be inserted into a body, and a conductive portion provided in the screw body and including an externally exposed portion, wherein the conductive portion may extend in a longitudinal direction of the screw body and form a single closed loop, and a medical insertion apparatus including a screw body to be inserted into a body, a driver to engage with the screw body to be used to fasten or loosen the screw body, and a conductive portion provided in the screw body and the driver and including an externally exposed portion on one side of the screw body, wherein a portion of the conductive portion disposed in the screw body and another portion of the conductive portion disposed in the driver may be electrically connected to each other.Type: GrantFiled: August 25, 2014Date of Patent: January 8, 2019Assignee: Kyungpook National University Industry-Academic Cooperation FoundationInventor: Kyoung Tae Kim
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Publication number: 20180374660Abstract: Various examples are provided for hydrothermally grown BaTiO3, SrTiO3, and BaxSr1-xTiO3 on TiO2 nanotube layers, which can be used in ultra-high charge density capacitors. In one example, a method includes forming a first anodized titanium oxide (ATO) layer on a layer of titanium by anodization, the first ATO layer having a nanotubular morphology; removing the first ATO layer from the layer of titanium; forming a second ATO layer having a nanotubular morphology on the layer of titanium by anodization; and hydrothermally growing a layer of MTiO3 on a surface of the second ATO layer, where M is Ba, Sr, or BaxSr1-x. In another example, an ultra-high density charge capacitor includes a first electrode layer; an ATO layer disposed on the first electrode layer; a layer of MTiO3 on a surface of the ATO layer; and a second electrode layer disposed on the layer of MTiO3.Type: ApplicationFiled: December 21, 2016Publication date: December 27, 2018Inventors: Kyoung Tae Kim, Yong-Kyu Yoon, Dongsu Kim
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Publication number: 20180360502Abstract: A rod connector used in screw fixation to connect different rods includes a latch element including a latch section which is fitted to a first rod and a pass-through section having a through-hole, a support element including an up/down movement section which moves up and down through the through-hole and a support section which is a head part of the up/down movement section and has a support groove to support a second rod, and a fixing screw which approaches the up/down movement section through a screw hole formed in oblique direction within the latch element and presses the up/down movement section directly or indirectly, to fix the support element at a predetermined height.Type: ApplicationFiled: December 22, 2016Publication date: December 20, 2018Inventor: Kyoung Tae KIM
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Patent number: 10154866Abstract: According to one embodiment, a medical insertion apparatus includes a screw nail body inserted into a human body and an electrode which is provided in the screw nail body and includes an externally exposed portion. Here, a through hole may be formed in the screw nail body or the electrode. According to one embodiment, a medical insertion apparatus includes a screw nail body inserted into a human body and an electrode which is provided in the screw nail body and exposed outside the screw nail body. Here, the screw nail body and the electrode may be provided as a combinable or separable structure. According to one embodiment, a medical insertion apparatus includes a screw nail body inserted into a human body, a driver engaged with the screw nail body to tighten or loosen the screw nail body, and a conductor portion which may be provided in the screw nail body or the driver and may include an externally exposed portion.Type: GrantFiled: August 19, 2014Date of Patent: December 18, 2018Assignee: KYUNGPOOK NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATIONInventor: Kyoung Tae Kim