Patents by Inventor Hyun Gu Kang
Hyun Gu 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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Patent number: 8382550Abstract: The present invention is such that a doll equipped with a plurality of auxiliary magnetic poles is inserted into a hermetically-sealed container filled with liquid and the container is circumferentially arranged with variable magnetic poles whose polarities are determined by electromagnets, whereby attraction or repulsion is applied on each portion of the doll. The polarity of each variable magnetic pole can be arbitrarily controlled by adjustment of direction of current flowing in the electromagnets to enable the doll in the container to be driven in various types of motions. Therefore, the motions of the doll can be expressed in various interesting types including dancing to the accompaniment of music without recourse to making the doll in a complicated robotic shape.Type: GrantFiled: September 4, 2008Date of Patent: February 26, 2013Assignee: Hyun Gu KangInventor: Hyun Gu Kang
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Publication number: 20130026935Abstract: A light-emitting diode (LED) luminescence apparatus configured to receive an alternating current (AC) power includes a plurality of LED units, and a plurality of constant current control units electrically connected to the plurality of LED units. The current control units are configured to control current flowing through each of the LED units so that the current has a specific magnitude.Type: ApplicationFiled: January 27, 2012Publication date: January 31, 2013Applicant: SEOUL SEMICONDUCTOR CO., LTD.Inventors: Young Do JONG, Hyun Gu KANG, Hye Man JUNG, Kang Nyung LEE
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Publication number: 20130026924Abstract: An LED driving circuit package includes a rectification unit to receive an AC power voltage and rectify the AC power voltage to generate a ripple voltage, an LED driving switching unit including a plurality of switch units and a plurality of current control units. The LED driving circuit package further includes a low voltage control unit including a circuit power supply unit to generate low voltage power, a voltage detection unit to detect a magnitude of the ripple voltage, a reference frequency generation unit to generate a reference frequency, and a reference pulse generation unit to generate a reference pulse for controlling the operation of the LED driving switch unit according to the reference frequency and a magnitude of the voltage detected by the voltage detection unit.Type: ApplicationFiled: January 27, 2012Publication date: January 31, 2013Applicant: SEOUL SEMICONDUCTOR CO., LTD.Inventors: Young Do JONG, Hyun Gu KANG, Hye Man JUNG, Kang Nyung LEE
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Publication number: 20130026931Abstract: An LED luminescence apparatus includes a plurality of LED units connected in series which are configured to receive a unidirectional ripple voltage, a plurality of switch units, one end of each being connected to the cathode of one of the plurality of LED units, a plurality of constant current control circuit units, one end of each being connected to an another end of a respective switch unit to receive a current from the respective switch unit, each of the constant current control circuit units being configured to output a current control signal to the respective switch unit to control a magnitude of the received current to have a specific value, and a current comparison unit to receive currents flowing from the plurality of switching units, and generate a plurality of switching control signals for the respective switch units to sequentially drive the plurality of constant current control circuit units.Type: ApplicationFiled: January 27, 2012Publication date: January 31, 2013Applicant: SEOUL SEMICONDUCTOR CO., LTD.Inventors: Young Do JONG, Hyun Gu KANG, Hye Man JUNG, Kang Nyung LEE
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Patent number: 8318856Abstract: The present invention relates to a delivery system for nucleic acid using a cationic polymer conjugate, and more specifically relates to a delivery system for nucleic acid comprising a cationic polymer conjugate prepared by conjugating hyaluronic acid or its derivative and polyethyleneimine, and a composition of delivering a nucleic acid into mammalian cell comprising a complex of the nucleic acid and a cationic polymer conjugate with electrostatic binding.Type: GrantFiled: April 4, 2008Date of Patent: November 27, 2012Assignees: Postech Academy-Industry Foundation, Korea University Industry and Academy Collaboration FoundationInventors: Yu-Kyoung Oh, Hyun-Gu Kang, Ji-Seok Kim, Jiang Ge, Ki-Su Kim, Ki-Tae Park, Su-Eun Han, Ga-Yong Shim, Ii-Hwan Cho, Sei-Kwang Hahn
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Patent number: 8247493Abstract: The invention relates to a long-acting formulation of biopharmaceutical, more specifically an aptamer therapeutics. A branched PEGylated aptamer or a hyaluronic acid (HA) derivative of which degradation in vivo is regulated is linked by the bioconjugation with biopharmaceutical to produce the long-action formulation.Type: GrantFiled: April 13, 2009Date of Patent: August 21, 2012Assignees: Postech Academy-Industry Foundation, PoscoInventors: Sei-Kwang Hahn, Hyun-Gu Kang, Sung-Ho Ryu, Jung-Kyu Park, Eun-Ju Oh
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Patent number: 8222825Abstract: Exemplary embodiments of the present invention relate to a dimmer for a light emitting device using an alternating (AC) voltage source. The dimmer includes a switch to be switched in response to a switching control signal and to deliver an AC voltage of an AC voltage source to the light emitting device, a current detector to detect an electric current to be provided to the light emitting device and to output a current detection signal, and a controller to output the switching control signal in response to a dimming control signal and the current detection signal.Type: GrantFiled: July 27, 2010Date of Patent: July 17, 2012Assignee: Seoul Semiconductor Co., Ltd.Inventors: Hyun Gu Kang, Do Hyung Kim, Sang Min Lee, Yoon Seok Lee
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Patent number: 8192068Abstract: A light-emitting module includes a printed circuit board (PCB), a fastening member, and a light-emitting package. The PCB has a power-supplying pad to provide electrical power. The fastening member is disposed on the PCB and has a package-receiving hole exposing the power-supplying pad. The light-emitting package is received by the package-receiving hole such that the light-emitting package is electrically connected to the power-supplying pad and detachably coupled with the fastening member. Therefore, the light-emitting package may be easily combined with the PCB, and the light-emitting package may be replaced when desired.Type: GrantFiled: February 10, 2010Date of Patent: June 5, 2012Assignee: Seoul Semiconductor Co., Ltd.Inventors: You-Jin Kwon, Won-Il Kim, Hyun-Gu Kang, Seung-Ryeol Ryu, Sang-Geun Bae, Seung-Sik Hong
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Publication number: 20120098448Abstract: An exemplary embodiment of the present invention discloses a light emitting diode (LED) driving device for an LED device having a plurality of LEDs, the driving device including a rectifying unit configured to receive an alternating current (AC) voltage and output a rectified voltage, and a driving control unit configured to drive the plurality of LEDs based on stored data by receiving the rectified voltage at a first period.Type: ApplicationFiled: October 19, 2011Publication date: April 26, 2012Applicants: INNOVISION CO., LTD., SEOUL SEMICONDUCTOR CO., LTD.Inventors: Hyun Gu KANG, Soung Hwi PARK
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Publication number: 20120074849Abstract: An illumination system according to an exemplary embodiment of the present invention includes at least one light emitting apparatus including at least one light emitting module detachably coupled to the at least one light emitting apparatus, the at least one light emitting module including an information storage unit to store characteristic information of the at least one light emitting module. The at least one light emitting apparatus also includes a controller configured to detect whether the at least one light emitting module is connected to or disconnected from the at least one light emitting apparatus, and to read out the characteristic information of the at least one light emitting module according to a detection result, wherein the characteristic information includes unique identification information or absolute lifetime information of the at least one light emitting module.Type: ApplicationFiled: December 9, 2011Publication date: March 29, 2012Applicant: SEOUL SEMICONDUCTOR CO., LTD.Inventor: Hyun-Gu KANG
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Patent number: 8124756Abstract: A method for preparing amino linker oligonucleotides is provided. More specifically, a method of preparing 5?-amino-linker oligonucleotides comprising the steps of: introducing an amino linker having a protecting group into the 5? terminus of an oligonucleotide; and removing the protecting group from the amino linker oligonucleotide by contacting with acetic acid and 2,2,2-trifluoroethanol is provided. The amino protecting group is efficiently removed from the amino linker oligonucleotides, and thereby achieving a high yield of the amino linker oligonucleotides.Type: GrantFiled: September 15, 2009Date of Patent: February 28, 2012Assignees: Postech Academy-Industry Foundation, PoscoInventors: Jung-Hwan Lee, Hyun-Gu Kang, Sung-Ho Ryu, Jong-In Kim, Sun-Hak Lee, Hye-Jung Lee, Eun-Jung Jang
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Publication number: 20110181196Abstract: Exemplary embodiments of the present invention relate to a dimmer for a light emitting device using an alternating (AC) voltage source. The dimmer includes a switch to be switched in response to a switching control signal and to deliver an AC voltage of an AC voltage source to the light emitting device, a current detector to detect an electric current to be provided to the light emitting device and to output a current detection signal, and a controller to output the switching control signal in response to a dimming control signal and the current detection signal.Type: ApplicationFiled: July 27, 2010Publication date: July 28, 2011Applicant: SEOUL SEMICONDUCTOR CO., LTD.Inventors: Hyun Gu Kang, Do Hyung Kim, Sang Min Lee, Yoon Seok Lee
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Publication number: 20110111477Abstract: The invention relates to a long-acting formulation of biopharmaceutical, more specifically an aptamer therapeutics. A branched PEGylated aptamer or a hyaluronic acid (HA) derivative of which degradation in vivo is regulated is linked by the bioconjugation with biopharmaceutical to produce the long-action formulation.Type: ApplicationFiled: April 13, 2009Publication date: May 12, 2011Inventors: Sei-Kwang HAHN, Hyun-Gu Kang, Sung-Ho Ryu, Jung-Kyu Park, Eun-Ju Oh
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Publication number: 20100328961Abstract: A light-emitting module includes a printed circuit board (PCB), a fastening member, and a light-emitting package. The PCB has a power-supplying pad to provide electrical power. The fastening member is disposed on the PCB and has a package-receiving hole exposing the power-supplying pad. The light-emitting package is received by the package-receiving hole such that the light-emitting package is electrically connected to the power-supplying pad and detachably coupled with the fastening member. Therefore, the light-emitting package may be easily combined with the PCB, and the light-emitting package may be replaced when desired.Type: ApplicationFiled: February 10, 2010Publication date: December 30, 2010Applicant: Seoul Semiconductor Co., Ltd.Inventors: You-Jin KWON, Won-Il Kim, Hyun-Gu Kang, Seung-Ryeol Ryu, Sang-Geun Bae, Seung-Sik Hong
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Publication number: 20100317723Abstract: Improved G-rich oligonucleotide (GRO) aptamers specific to nucleolin, a method of preparing the aptamers, and a use of the aptamers for diagnosing and/or treating a nucleolin-associated disease, are provided.Type: ApplicationFiled: April 14, 2010Publication date: December 16, 2010Applicants: POSTECH ACADEMY-INDUSTRY FOUDATION, POSCOInventors: JUNG-HWAN LEE, SOON-HAG KIM, MI-JIN KWON, HYUN-GU KANG, SUNG-HO RYU, JONG-IN KIM, YOUN-DONG KIM, YOUNG-CHAN CHAE, SUNG-KEY JANG, JONG-HUN IM, SUN-HAK LEE, HYE-JUNG LEE, EUN-JUNG JANG, KI-SEOK KIM
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Publication number: 20100261245Abstract: The invention relates to a long-acting formulation of biopharmaceutical, more specifically an aptamer therapeutics. A branched PEGylated aptamer or a hyaluronic acid (HA) derivative of which degradation in vivo is regulated is linked by the bioconjugation with biopharmaceutical to produce the long-action formulation.Type: ApplicationFiled: April 13, 2009Publication date: October 14, 2010Inventors: Sei-Kwang HAHN, Hyun-Gu Kang, Sung-Ho Ryu, Jung-Kyu Park, Eun-Ju Oh
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Publication number: 20100244727Abstract: A light-emitting diode (LED) driver used to power at least one LED with an alternating current (AC) voltage source is provided. The LED driver includes a rectifying unit applying N-fold higher voltage than the voltage from the AC voltage source to the LED. The rectifying unit includes a first charging unit to charge a first voltage, and a second charging unit to charge a second voltage. The first voltage includes the voltage at the AC voltage source during a first half-cycle of one AC voltage cycle, and the second voltage includes the first voltage and the voltage at the AC voltage source during the second half-cycle of the AC voltage cycle. Accordingly, the LED driver may improve light-emitting efficiency and reduce flicker of LEDs.Type: ApplicationFiled: February 12, 2010Publication date: September 30, 2010Applicant: Seoul Semiconductor Co., LtdInventors: Kyung Hee YE, Hyun Gu Kang, Dae Sung Kal, Won Cheol Seo
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Publication number: 20100237800Abstract: A light emitting device comprises a first light emitting unit and a second light emitting unit connected in series with each other, and a PTF unit connected in parallel with the first light emitting unit and in series with the second light emitting unit. Each of the first light emitting unit and second light emitting unit comprises at least one LED. The PTF unit allows the second light emitting unit to be operated before operation of the first light emitting unit upon application of an AC voltage source. The light emitting device reduces total harmonic distortion and flickering, and improves power factor and optical efficiency. A driving circuit of the light emitting device is also disclosed.Type: ApplicationFiled: August 31, 2009Publication date: September 23, 2010Applicant: SEOUL SEMICONDUCTOR CO., LTD.Inventors: Hyun Gu KANG, Sang Min Lee, Yoon Seok Lee, Won Il Kim, You Jin Kwon
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Publication number: 20100197194Abstract: The present invention is such that a doll equipped with a plurality of auxiliary magnetic poles is inserted into a hermetically-sealed container filled with liquid and the container is circumferentially arranged with variable magnetic poles whose polarities are determined by electromagnets, whereby attraction or repulsion is applied on each portion of the doll. The polarity of each variable magnetic pole can be arbitrarily controlled by adjustment of direction of current flowing in the electromagnets to enable the doll in the container to be driven in various types of motions. Therefore, the motions of the doll can be expressed in various interesting types including dancing to the accompaniment of music without recourse to making the doll in a complicated robotic shape.Type: ApplicationFiled: September 4, 2008Publication date: August 5, 2010Inventor: Hyun Gu Kang
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Patent number: D647639Type: GrantFiled: December 28, 2010Date of Patent: October 25, 2011Assignee: Seoul Semiconductor Co., Ltd.Inventors: Seong Jin Lee, Hyun Gu Kang, Do Hyoung Kim