Patents by Inventor Sung-Kwon Jung
Sung-Kwon Jung 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: 8715588Abstract: A fluid sensor comprises a formed plastic body and a reagent. The body has a top face with an integral first surface. The body also has a bottom face opposed to the first surface and a sidewall that extends from the periphery of the top face. The first surface is adapted to accept a fluid sample. The reagent is disposed on the integral first surface and causes a color change detectable on the bottom face when the reagent reacts with an analyte in the fluid sample.Type: GrantFiled: August 26, 2013Date of Patent: May 6, 2014Assignee: Bayer HealthCare LLCInventors: Sung-Kwon Jung, Steven C. Charlton, Suny J. George, Andrew J. Dosmann, Karen L. Marfurt
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Publication number: 20130343963Abstract: A fluid sensor comprises a formed plastic body and a reagent. The body has a top face with an integral first surface. The body also has a bottom face opposed to the first surface and a sidewall that extends from the periphery of the top face. The first surface is adapted to accept a fluid sample. The reagent is disposed on the integral first surface and causes a color change detectable on the bottom face when the reagent reacts with an analyte in the fluid sample.Type: ApplicationFiled: August 26, 2013Publication date: December 26, 2013Applicant: Bayer HealthCare, LLCInventors: Sung-Kwon Jung, Steven C. Charlton, Suny J. George, Andrew J. Dosmann, Karen L. Marfurt
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Publication number: 20130334066Abstract: A biosensor system determines an analyte concentration of a biological sample using an electrochemical process without Cottrell decay. The biosensor system generates an output signal having a transient decay, where the output signal is not inversely proportional to the square root of the time. The transient decay is greater or less than the ?0.5 decay constant of a Cottrell decay. The transient decay may result from a relatively short incubation period, relatively small sample reservoir volumes, relatively small distances between electrode surfaces and the lid of the sensor strip, and/or relatively short excitations in relation to the average initial thickness of the reagent layer. The biosensor system determines the analyte concentration from the output signal having a transient decay.Type: ApplicationFiled: May 29, 2013Publication date: December 19, 2013Inventors: Huan-Ping Wu, Steven C. Charlton, Amy H. Chu, Andrew J. Edelbrock, Sung-Kwon Jung, Dijia Huang
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Publication number: 20130270123Abstract: Systems and methods for electrochemically oxidizing components of a test-sensor reagent prior to deposition on a test sensor comprise at least a first electrode and a second electrode for contacting the test-sensor reagent. The first electrode and the second electrode may have hollow interior portions for contacting the test-sensor reagent to produce a modified test-sensor reagent having a reduced background current.Type: ApplicationFiled: April 29, 2013Publication date: October 17, 2013Inventors: Sung-Kwon Jung, Steven C. Charlton, Dija Huang
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Patent number: 8551418Abstract: A system for analyzing the concentration of an analyte in a fluid sample comprises a test strip and a meter. The test strip is capable of being inoculated by the fluid sample. The test strip includes a test element, which contains at least one reagent adapted to cause a reaction when brought into contact with the analyte. The meter includes a read-head, a repositioning device, and a display. The read-head is capable of producing a signal indicative of the reaction between the analyte and the at least one reagent. The display is capable of displaying the analyte concentration. The repositioning device is adapted to move the test strip from a loading position to a testing position. The testing position positions the test element proximate to the read-head.Type: GrantFiled: April 4, 2012Date of Patent: October 8, 2013Assignee: Bayer HealthCare, LLCInventors: Sung-Kwon Jung, Steven C. Charlton
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Patent number: 8545768Abstract: A fluid sensor comprises a formed plastic body and a reagent. The body has a top face with an integral first surface. The body also has a bottom face opposed to the first surface and a sidewall that extends from the periphery of the top face. The first surface is adapted to accept a fluid sample. The reagent is disposed on the integral first surface and causes a color change detectable on the bottom face when the reagent reacts with an analyte in the fluid sample.Type: GrantFiled: September 3, 2010Date of Patent: October 1, 2013Assignee: Bayer HealthCare LLCInventors: Sung-Kwon Jung, Steven C. Charlton, Suny J. George, Andrew J. Dosmann, Karen L. Marfurt
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Patent number: 8531605Abstract: An apparatus and method for providing an output setting in a portable terminal includes an external output setting unit and a controller. If a connection with an external device is determined, the external output setting unit determines an output format supported by the external device. The controller automatically changes system setting suitably to the determined output format of the external device.Type: GrantFiled: April 21, 2010Date of Patent: September 10, 2013Assignee: Samsung Electronics Co., Ltd.Inventor: Sung-Kwon Jung
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Publication number: 20130177993Abstract: An optic light guide test sensor comprises a light guide, a reagent-coated membrane, and a mesh layer. The reagent-coated membrane and the mesh layer are attached to the light guide at an output end of the light guide. The light guide test sensor is adapted to be used to test the level of an analyte in a biological fluid sample when used with a readhead. A method of manufacturing the light guide test sensor involves providing a plurality of light guides, providing a strip of reagent-coated membrane, and providing a strip of mesh layer. The reagent-coated membrane and mesh layer are attached to the light guides by ultrasonic welding. The reagent-coated membrane and mesh layer may also be attached to the light guides by adhesive.Type: ApplicationFiled: January 22, 2013Publication date: July 11, 2013Inventors: Jeffery S. Reynolds, Steven C. Charlton, Sung-Kwon Jung, Suny J. George
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Patent number: 8470604Abstract: A biosensor system determines an analyte concentration of a biological sample using an electrochemical process without Cottrell decay. The biosensor system generates an output signal having a transient decay, where the output signal is not inversely proportional to the square root of the time. The transient decay is greater or less than the ?0.5 decay constant of a Cottrell decay. The transient decay may result from a relatively short incubation period, relatively small sample reservoir volumes, relatively small distances between electrode surfaces and the lid of the sensor strip, and/or relatively short excitations in relation to the average initial thickness of the reagent layer. The biosensor system determines the analyte concentration from the output signal having a transient decay.Type: GrantFiled: August 16, 2011Date of Patent: June 25, 2013Assignee: Bayer HealthCare LLCInventors: Huan-Ping Wu, Steven C. Charlton, Amy H. Chu, Andrew J. Edelbrock, Sung-Kwon Jung, Dijia Huang
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Patent number: 8454806Abstract: Systems and methods for electrochemically oxidizing components of a test-sensor reagent prior to deposition on a test sensor comprise at least a first electrode and a second electrode for contacting the test-sensor reagent. The first electrode and the second electrode may have hollow interior portions for contacting the test-sensor reagent to produce a modified test-sensor reagent having a reduced background current.Type: GrantFiled: December 9, 2008Date of Patent: June 4, 2013Assignee: Bayer HealthCare LLCInventors: Sung-Kwon Jung, Steven C. Charlton, Dijia Huang
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Publication number: 20130081958Abstract: A composition of redox-reagent containing metal-containing complex and thionine or its derivative as electron transfer mediator for use in an electrochemical biosensor, and a biosensor containing the same are provided. With the increase in reaction rate between redox enzyme-thionine (or its derivative)-metal-containing complex in the composition of redox-reagent containing metal-containing complex and thionine or its derivative, glucose detection efficiency markedly increases, and the composition is hardly influenced from high humidity and interfering substances. Accordingly, the composition of redox-reagent is useful in fabricating an electrochemical biosensor for detecting glucose in blood.Type: ApplicationFiled: September 25, 2012Publication date: April 4, 2013Applicant: I-SENS, INC.Inventors: Sung-kwon Jung, Moon Hwan Kim, Myeong-Ho Lee, Ung-Ki Lee, Yeon-Ho Jung, Han-Be Park, Hakhyun Nam, Geun Sig Cha
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Patent number: 8383414Abstract: An optic light guide test sensor comprises a light guide, a reagent-coated membrane, and a mesh layer. The reagent-coated membrane and the mesh layer are attached to the light guide at an output end of the light guide. The light guide test sensor is adapted to be used to test the level of an analyte in a biological fluid sample when used with a readhead. A method of manufacturing the light guide test sensor involves providing a plurality of light guides, providing a strip of reagent-coated membrane, and providing a strip of mesh layer. The reagent-coated membrane and mesh layer are attached to the light guides by ultrasonic welding. The reagent-coated membrane and mesh layer may also be attached to the light guides by adhesive.Type: GrantFiled: July 1, 2005Date of Patent: February 26, 2013Assignee: Bayer HealthCare LLCInventors: Jeffery S. Reynolds, Steven C. Charlton, Sung-Kwon Jung, Suny J. George
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Publication number: 20120189497Abstract: A system for analyzing the concentration of an analyte in a fluid sample comprises a test strip and a meter. The test strip is capable of being inoculated by the fluid sample. The test strip includes a test element, which contains at least one reagent adapted to cause a reaction when brought into contact with the analyte. The meter includes a read-head, a repositioning device, and a display. The read-head is capable of producing a signal indicative of the reaction between the analyte and the at least one reagent. The display is capable of displaying the analyte concentration. The repositioning device is adapted to move the test strip from a loading position to a testing position. The testing position positions the test element proximate to the read-head.Type: ApplicationFiled: April 4, 2012Publication date: July 26, 2012Applicant: Bayer HealthCare LLCInventors: Sung-Kwon Jung, Steven C. Charlton
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Patent number: 8202488Abstract: A system for analyzing the concentration of an analyte in a fluid sample comprises a test strip and a meter. The test strip is capable of being inoculated by the fluid sample. The test strip includes a test element, which contains at least one reagent adapted to cause a reaction when brought into contact with the analyte. The meter includes a read-head, a repositioning device, and a display. The read-head is capable of producing a signal indicative of the reaction between the analyte and the at least one reagent. The display being capable of displaying the analyte concentration. The repositioning device is adapted to move the test strip from a loading position to a testing position. The testing position positions the test element proximate to the read-head.Type: GrantFiled: September 19, 2005Date of Patent: June 19, 2012Assignee: Bayer HealthCare LLCInventors: Sung-Kwon Jung, Steven C. Charlton
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Publication number: 20120031776Abstract: A biosensor system determines an analyte concentration of a biological sample using an electrochemical process without Cottrell decay. The biosensor system generates an output signal having a transient decay, where the output signal is not inversely proportional to the square root of the time. The transient decay is greater or less than the ?0.5 decay constant of a Cottrell decay. The transient decay may result from a relatively short incubation period, relatively small sample reservoir volumes, relatively small distances between electrode surfaces and the lid of the sensor strip, and/or relatively short excitations in relation to the average initial thickness of the reagent layer. The biosensor system determines the analyte concentration from the output signal having a transient decay.Type: ApplicationFiled: August 16, 2011Publication date: February 9, 2012Applicant: BAYER HEALTHCARE LLCInventors: Huan-Ping Wu, Steven C. Charlton, Amy H. Chu, Andrew J. Edelbrock, Sung-Kwon Jung, Dijia Huang
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Publication number: 20110297554Abstract: A biosensor system determines analyte concentration from an output signal generated from a light-identifiable species or a redox reaction of the analyte. The biosensor system adjusts a correlation for determining analyte concentrations from output signals or determined analyte concentrations with one or more complex index function extracted from the output signals or from other sources. The complex index functions determine at least one slope deviation value, ?S, or normalized slope deviation from one or more error parameters. The slope-adjusted correlation between analyte concentrations and output signals may be used to determine analyte concentrations having improved accuracy and/or precision from output signals including components attributable to bias.Type: ApplicationFiled: June 6, 2011Publication date: December 8, 2011Applicant: BAYER HEALTHCARE LLCInventors: Huan-Ping Wu, Sung-Kwon Jung
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Patent number: 8026104Abstract: A biosensor system determines an analyte concentration of a biological sample using an electrochemical process without Cottrell decay. The biosensor system generates an output signal having a transient decay, where the output signal is not inversely proportional to the square root of the time. The transient decay is greater or less than the ?0.5 decay constant of a Cottrell decay. The transient decay may result from a relatively short incubation period, relatively small sample reservoir volumes, relatively small distances between electrode surfaces and the lid of the sensor strip, and/or relatively short excitations in relation to the average initial thickness of the reagent layer. The biosensor system determines the analyte concentration from the output signal having a transient decay.Type: GrantFiled: October 21, 2007Date of Patent: September 27, 2011Assignee: Bayer HealthCare LLCInventors: Huan-Ping Wu, Steven C. Charlton, Amy H. Chu, Andrew J. Edelbrock, Sung-Kwon Jung, Dijia Huang
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Publication number: 20100329951Abstract: A fluid sensor comprises a formed plastic body and a reagent. The body has a top face with an integral first surface. The body also has a bottom face opposed to the first surface and a sidewall that extends from the periphery of the top face. The first surface is adapted to accept a fluid sample. The reagent is disposed on the integral first surface and causes a color change detectable on the bottom face when the reagent reacts with an analyte in the fluid sample.Type: ApplicationFiled: September 3, 2010Publication date: December 30, 2010Applicant: Bayer HealthCare, LLCInventors: Sung-Kwon Jung, Steven C. Charlton, Suny J. George, Andrew J. Dosmann, Karen L. Marfurt
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Publication number: 20100271544Abstract: An apparatus and method for providing an output setting in a portable terminal includes an external output setting unit and a controller. If a connection with an external device is determined, the external output setting unit determines an output format supported by the external device. The controller automatically changes system setting suitably to the determined output format of the external device.Type: ApplicationFiled: April 21, 2010Publication date: October 28, 2010Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventor: Sung-Kwon JUNG
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Publication number: 20100267161Abstract: Biosensor systems including a measurement device and test sensors including at least three independently addressable electrodes, with at least two of the electrodes being substantially chemically isolated are disclosed. One or more working electrodes may be combined with two or more counter electrodes. The two or more counter electrodes may operate at different potentials to provide for multi-analyte electrochemical analysis. Analysis methods are provided to perform multi-analyte electrochemical analysis and test sensors are provided having resistance to chemical mixing between secondary analysis regions.Type: ApplicationFiled: March 22, 2010Publication date: October 21, 2010Applicant: BAYER HEALTHCARE LLCInventors: Huan-Ping Wu, Weiping Zhong, Joseph E. Perry, Eric Maurer, Sung-Kwon Jung