Patents by Inventor Seung-youl Kang
Seung-youl Kang 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: 20120225500Abstract: Provided are a transparent nonvolatile memory thin film transistor (TFT) and a method of manufacturing the same. The memory TFT includes source and drain electrodes disposed on a transparent substrate. A transparent semiconductor thin layer is disposed on the source and drain electrodes and the transparent substrate interposed between the source and drain electrodes. An organic ferroelectric thin layer is disposed on the transparent semiconductor thin layer. A gate electrode is disposed on the organic ferroelectric thin layer in alignment with the transparent semiconductor thin layer. Thus, the transparent nonvolatile memory TFT employs the organic ferroelectric thin layer, the oxide semiconductor thin layer, and auxiliary insulating layers disposed above and below the organic ferroelectric thin layer, thereby enabling low-cost manufacture of a transparent nonvolatile memory device capable of a low-temperature process.Type: ApplicationFiled: May 11, 2012Publication date: September 6, 2012Applicant: Electronics and Telecommunications Research InstituteInventors: Sung Min YOON, Shin Hyuk Yang, Soon Won Jung, Seung Youl Kang, Doo Hee Cho, Chun Won Byun, Chi Sun Hwang, Byoung Gon Yu, Kyoung Ik Cho
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Publication number: 20120161542Abstract: A system for reducing a radiation field in a wireless power transmission system includes a signal generation unit, a power amplification unit, a signal detection unit, a standing wave ratio (SWR) calculation unit and a control unit. The signal generation unit receives power and generates a signal for wireless power transmission. The power amplification unit amplifies the wireless signal generated by the signal generation unit. The signal detection unit detects a radiation signal generated by the magnetic resonator with respect to output power of the power amplification unit. The SWR calculation unit calculates an SWR using the detected radiation signal. The control unit selects a frequency having a lowest SWR based on the SWR calculated by the SWR calculation unit, and controls the signal generation unit to generate the signal for the wireless power transmission using the selected frequency.Type: ApplicationFiled: December 22, 2011Publication date: June 28, 2012Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Seong-Min KIM, In-Kui Cho, Je-Hoon Yun, Jung-Ick Moon, Seung-Youl Kang, Yong-Hae Kim, Sang-Hoon Cheon, Myung-Lae Lee, Woo-Jin Byun, Chang-Joo Kim
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Publication number: 20120154899Abstract: Provided are methods of operating display devices. The method includes applying a first electric field to a capsule including first particles having a first color and second particles having a second color to move the first and second particles into a first region of the capsule; and applying a second electric field to the capsule to move the second particles into a second region of the capsule different from the first region and to leave the first particles in the first region of the capsule.Type: ApplicationFiled: December 14, 2011Publication date: June 21, 2012Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Seongdeok Ahn, Seung Youl Kang
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Patent number: 8198148Abstract: Provided is a method for manufacturing a semiconductor device. The method includes: providing a first substrate where an active layer is formed on a buried insulation layer; forming a gate insulation layer on the active layer; forming a gate electrode on the gate insulation layer; forming a source/drain region on the active layer at both sides of the gate electrode; exposing the buried insulation layer around a thin film transistor (TFT) including the gate electrode and the source/drain region; forming an under cut at the bottom of the TFT by partially removing the buried insulation layer; and transferring the TFT on a second substrate.Type: GrantFiled: April 26, 2010Date of Patent: June 12, 2012Assignee: Electronics and Telecommunications Research InstituteInventors: Jae Bon Koo, Seung Youl Kang, In-Kyu You
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Patent number: 8198625Abstract: Provided are a transparent nonvolatile memory thin film transistor (TFT) and a method of manufacturing the same. The memory TFT includes source and drain electrodes disposed on a transparent substrate. A transparent semiconductor thin layer is disposed on the source and drain electrodes and the transparent substrate interposed between the source and drain electrodes. An organic ferroelectric thin layer is disposed on the transparent semiconductor thin layer. A gate electrode is disposed on the organic ferroelectric thin layer in alignment with the transparent semiconductor thin layer. Thus, the transparent nonvolatile memory TFT employs the organic ferroelectric thin layer, the oxide semiconductor thin layer, and auxiliary insulating layers disposed above and below the organic ferroelectric thin layer, thereby enabling low-cost manufacture of a transparent nonvolatile memory device capable of a low-temperature process.Type: GrantFiled: September 9, 2009Date of Patent: June 12, 2012Assignee: Electronics and Telecommunications Research InstituteInventors: Sung Min Yoon, Shin Hyuk Yang, Soon Won Jung, Seung Youl Kang, Doo Hee Cho, Chun Won Byun, Chi Sun Hwang, Byoung Gon Yu, Kyoung Ik Cho
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Publication number: 20120119587Abstract: Provided is a wireless power transfer device. The wireless power transfer device includes an power generator, and two or more non-radiative electromagnetic wave generators. The power generator generates AC type of power. The non-radiative electromagnetic wave generators receive the power, and generate non-radiative electromagnetic waves through resonance. The non-radiative electromagnetic wave generators are disposed to form a wireless power transfer-enabled transfer area.Type: ApplicationFiled: August 5, 2011Publication date: May 17, 2012Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Sang Hoon CHEON, Yong Hae KIM, Myung Lae LEE, Seung Youl KANG, Taehyoung ZYUNG
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Publication number: 20120098349Abstract: Provided is a wireless power transfer device. The wireless power transfer device includes: a base substrate including a base coil; transmission substrates spaced from the base substrate and including transmission coils; and a contact plug penetrating the base substrate and the transmission substrates to connect one ends of the transmission coils; wherein the transmission coils have the greater turn number than the base coil and transmitting/receiving a power signal through a magnetic resonance method.Type: ApplicationFiled: October 11, 2011Publication date: April 26, 2012Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Yong Hae KIM, Seung Youl Kang, Sang Hoon Cheon, Myung Lae Lee, Je Hoon Yun, In Kui Cho, Jung Ick Moon, Seong-Min Kim
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Patent number: 8110949Abstract: Provided is a wireless power transmission device. The wireless power transmission device includes a power coil in which a high frequency current is applied, a transmission coil in which the high frequency current is induced by magnetic induction, the transmission coil configured to generate an non-radiative electromagnetic wave when the transmission coil has the same resonant frequency as an at least one external target device, and a resonant frequency regulator configured to regulate the resonant frequency of the transmission coil. The wireless power transmission device can transmit the power when it has the same resonant frequency as the target device. Therefore, the overheating due to an eddy current may not occur, and the design may be easily varied.Type: GrantFiled: October 20, 2009Date of Patent: February 7, 2012Assignee: Electronics and Telecommunications Research InstituteInventors: Yong Hae Kim, Seung Youl Kang, Myung Lae Lee, Taehyoung Zyung, Jong-Moo Lee, Sang Hoon Cheon
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Publication number: 20120025622Abstract: Provided is a method for a wireless power transfer. The method includes modulating a transmission frequency according to a predetermined value at a wireless power transmitter; and transmitting a high frequency signal according to the modulated transmission signal from the wireless power transmitter to at least one wireless power receiver and redetermining the predetermined value according to information which corresponds to a power value of the high frequency signal received by the at least one wireless power receiver, wherein the modulating the transmission frequency at the wireless power transmitter and transmitting the high frequency and the redetermining the predetermined value the at least one wireless power receiver are repeated.Type: ApplicationFiled: October 4, 2010Publication date: February 2, 2012Applicant: ELECTRONICS AND TELECOMMUNICATION RESEARCH INSTITUTEInventors: Yong Hae KIM, Seung Youl Kang, Sang Hoon Cheon, Myung Lae Lee, Tae Hyoung Zyung
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Publication number: 20120001159Abstract: Provided is an insulating layer in which an inorganic material is added to an organic polymer to thereby improve the insulating properties, an organic thin film transistor using the insulating layer, and a method of fabricating the organic thin film transistor. An insulating layer for an organic thin film transistor including a vinyl polymer and an inorganic material is provided. Here, a weight ratio of the vinyl polymer to the inorganic material may be in the range of 1:0.0001 to 1:0.5. Accordingly, it is possible to fabricate a thin film at low temperature and, further, to fabricate an insulating layer having a high-dielectric constant, not affecting other layers formed in the previous processes during the formation of the insulating layer.Type: ApplicationFiled: September 15, 2011Publication date: January 5, 2012Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Gi Heon KIM, Sung Min YOON, Kyu Ha BAEK, In Kyu YOU, Seung Youl KANG, Seong Deok AHN, Kyung Soo SUH
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Patent number: 8047849Abstract: Provided are a braille display device using an electrorheological fluid and a method for manufacturing the same. The braille display device includes: a base body in which a plurality of insulating reception grooves are formed; a first electrode arranged below the base body; an electrorheological fluid received in the reception groove; a microcapsule having an electrophoresis particle which is dispersed in the electrorheological fluid; a second electrode arranged above the microcapsule; a braille pin installed above the second electrode; and a braille pin protection film arranged above the braille pin.Type: GrantFiled: December 5, 2007Date of Patent: November 1, 2011Assignee: Electronics and Telecommunications Research InstituteInventors: Seong Deok Ahn, Seung Youl Kang, Chul Am Kim, Ji Young Oh, In Kyu You, Gi Heon Kim, Kyu Ha Baek, Kyung Soo Suh
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Patent number: 8049953Abstract: Provided is a microcapsule patterning method for patterning electrophoretic microcapsules on a substrate, the method including the steps of: preparing a microcapsule slurry in which microcapsules and a water-soluble binder are mixed; putting the microcapsule slurry into a liquid ejector having injection and ejection ports formed therein; and applying the microcapsule slurry contained in the liquid ejector onto the substrate so as to pattern pixels using the microcapsules. Accordingly, specific patterns are formed without physical and chemical damage to the microcapsules. Therefore, the patterns can be used as pixels of flat panel displays. Further, through the patterning, it is possible to implement a color display device which does not exhibit performance degradation.Type: GrantFiled: September 18, 2007Date of Patent: November 1, 2011Assignee: Electronics and Telecommunications Research InstituteInventors: Chul Am Kim, Seung Youl Kang, Hey Jin Myoung, Kyung Soo Suh, Seong Deok Ahn, Gi Heon Kim, In Kyu You, Ji Young Oh
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Patent number: 8039294Abstract: Provided is an insulating layer in which an inorganic material is added to an organic polymer to thereby improve the insulating properties, an organic thin film transistor using the insulating layer, and a method of fabricating the organic thin film transistor. An insulating layer for an organic thin film transistor including a vinyl polymer and an inorganic material is provided. Here, a weight ratio of the vinyl polymer to the inorganic material may be in the range of 1:0.0001 to 1:0.5. Accordingly, it is possible to fabricate a thin film at low temperature and, further, to fabricate an insulating layer having a high-dielectric constant, not affecting other layers formed in the previous processes during the formation of the insulating layer.Type: GrantFiled: July 25, 2007Date of Patent: October 18, 2011Assignee: Electronics and Telecommunications Research InstituteInventors: Gi Heon Kim, Sung Min Yoon, Kyu Ha Baek, In Kyu You, Seung Youl Kang, Seong Deok Ahn, Kyung Soo Suh
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Publication number: 20110248739Abstract: Provided is a bending test apparatus of a flexible device. The bending test apparatus includes: first and second electrode parts disposed in a horizontal direction and loading a flexible device horizontally, wherein the first electrode part is movable in the horizontal direction and the second electrode part is fixed so that the first electrode part horizontally moves toward the second electrode part to apply mechanical stress of the horizontal direction to the flexible device.Type: ApplicationFiled: August 13, 2010Publication date: October 13, 2011Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Yong Hae KIM, Gi Heon Kim, Seung Youl Kang
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Publication number: 20110204334Abstract: Provided are an organic thin film transistor and a method of forming the same. The method comprises forming a gate electrode on a substrate, forming a gate dielectric, which covers the gate electrode and includes a recess region at an upper portion, on the substrate, forming a source electrode and a drain electrode in the recess region, and forming an organic semiconductor layer between the source electrode and the drain electrode in the recess region.Type: ApplicationFiled: August 18, 2010Publication date: August 25, 2011Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Kang Dae KIM, In-Kyu You, Jae Bon Koo, Yong Suk Yang, Seung Youl Kang
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Publication number: 20110143034Abstract: Provided is a method of depositing a graphene film. In the method includes supplying a gaseous-phase graphene source to a substrate, forming an adsorbed layer on the substrate by the graphene source, and activating the adsorbed layer by heating the adsorbed layer. Therefore, a uniform graphene film having a large area can be formed.Type: ApplicationFiled: July 1, 2010Publication date: June 16, 2011Applicant: Electronics and Telecommunications Research InstituteInventors: Seongdeok Ahn, Seung Youl Kang
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Publication number: 20110140671Abstract: Provided is a portable device. The portable device includes a near distance antenna, a long distance antenna, a first power generation circuit, a second power generation circuit, and a battery. The near distance antenna receives a first power source signal in an electromagnetic inductive coupling scheme. The long distance antenna receives a second power source signal in a magnetic resonance scheme. The first power generation circuit generates a power source from the first power source signal. The second power generation circuit generates a power source from the second power source signal. The battery is charged with the generated power source.Type: ApplicationFiled: August 31, 2010Publication date: June 16, 2011Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Yong Hae KIM, Seung Youl Kang, Myung Lae Lee, Jong Moo Lee, Sang Hoon Cheon, Tae Hyoung Zyung, Yeon Seok Jeong
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Publication number: 20110143614Abstract: Provided is a plastic substrate. The plastic substrate includes a carbon nanotube thin film having a matrix type mesh shape, and a plastic thin film support configured to at least fill spaces of the matrix type mesh shape and cover one side of the carbon nanotube thin film. The plastic substrate may have a low coefficient of thermal expansion and be flexible and conductive.Type: ApplicationFiled: July 2, 2010Publication date: June 16, 2011Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Seongdeok AHN, Seung Youl KANG
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Publication number: 20110133257Abstract: Provided are a transferred thin film transistor and a method of manufacturing the same. The method includes: forming a source region and a drain region that extend in a first direction in a first substrate and a channel region between the source region and the drain region; forming trenches that extend in a second direction in the first substrate to define an active layer between the trenches, the second direction intersecting the first direction; separating the active layer between the trenches from the first substrate by performing an anisotropic etching process on the first substrate inside the trenches; attaching the active layer on a second substrate; and forming a gate electrode in the first direction on the channel region of the active layer.Type: ApplicationFiled: May 18, 2010Publication date: June 9, 2011Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Jae Bon KOO, Jong-Hyun Ahn, Seung Youl Kang, Hasan Musarrat, In-Kyu You, Kyoung Ik Cho
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Publication number: 20110133569Abstract: Provided are a wireless power transmission device and wireless power reception device. A power-relaying resonant coil is disposed between a power transmitter and a power receiver to increase transmission efficiency and lengthen a transmission distance. The wireless power transmission device includes a power generation module for generating power, a power coil for receiving the power, a transmitting coil for resonating at the unique resonant frequency due to magnetic induction with the power coil and generating a non-radiative electromagnetic wave, and one or more power relay coils for relaying the non-radiative electromagnetic wave.Type: ApplicationFiled: May 13, 2010Publication date: June 9, 2011Applicant: Electronics and Telecommunications Research InstituteInventors: Sang Hoon CHEON, Yong Hae KIM, Seung Youl KANG, Myung Lae LEE, Jong Moo LEE, Tae Hyoung ZYUNG