Patents by Inventor Kyu-tae Yoo

Kyu-tae Yoo 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).

  • Patent number: 8974385
    Abstract: An apparatus and method of providing blood glucose management information includes a determination unit that determines a similarity of a blood glucose change pattern of a user by comparing blood glucose information obtained from the user and stored blood glucose information, an extraction unit that extracts at least one piece of blood glucose information from the stored blood glucose information according to the similarity and generates extracted blood glucose information, and an interface unit which provides the blood glucose management information, which corresponds to the extracted blood glucose information, to the user.
    Type: Grant
    Filed: June 28, 2010
    Date of Patent: March 10, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kwang-hyeon Lee, Kyu-tae Yoo
  • Patent number: 8735077
    Abstract: Provided is a field effect transistor (FET) type biosensor including a source electrode, a gate, and a drain electrode. A ligand that can bind to a side of a nucleic acid is added to the surface of the gate. In a conventional FET type biosensor, it is difficult to detect a signal within the debye length because a target nucleic acid is directly fixed to the surface of a gate of the conventional FET. However, in the present invention, this problem can be overcome and the debye length can be increased by treating the surface of a gate of an FET sensor with a ligand that can bind to a side of a nucleic acid. The ligand can be adsorbed onto the surface of the gate. In this case, the nucleic acid is adsorbed parallel to the surface of the gate, not perpendicular to the surface of the gate, thus generating an effective depletion region. In addition, hybridization efficiency can be increased because a hybridized sample can be injected into an FET sensor at high ionic strength.
    Type: Grant
    Filed: January 20, 2006
    Date of Patent: May 27, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jeo-young Shim, Su-hyeon Kim, Kyu-tae Yoo, Sung-ouk Jung, Joon-shik Park
  • Patent number: 8700889
    Abstract: A method of displaying health information of a user, the method including: monitoring if a sharing request for a health information of a user is made by an external device, which provides a web page representing the health information of the user in the form of an image; downloading a captured image of the web page from the external device if the sharing request for the health information of the user is made; and displaying the downloaded captured image.
    Type: Grant
    Filed: April 9, 2010
    Date of Patent: April 15, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kwang-hyeon Lee, Kyu-tae Yoo
  • Patent number: 8688981
    Abstract: A method of logging in a health information tele-monitoring device by using a personal portable device. The method includes issuing a security key embedded in a health information tele-monitoring device to a personal portable device, storing the security key issued by the health information tele-monitoring device in the user's personal portable device; requesting the user's personal portable device to authenticate the health information tele-monitoring device in order to connect the health information tele-monitoring device to a healthcare server; and authorizing access of the health information tele-monitoring device to the healthcare server.
    Type: Grant
    Filed: September 3, 2009
    Date of Patent: April 1, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Byung-soo Gim, Kyu-tae Yoo, Kwang-hyeon Lee
  • Patent number: 8366905
    Abstract: An apparatus and method for detecting ionic materials includes a sensing electrode which contacts a liquid sample and detects a sensing voltage corresponding to a surface potential which is changed by a concentration of ionic materials in the liquid sample, a first switching transistor having a first terminal connected to the sensing electrode and a second terminal connected to a first node, a second switching transistor having a first terminal connected to a reset voltage and a second terminal connected to the first node, and a sensing transistor having a gate connected to the first node.
    Type: Grant
    Filed: August 4, 2010
    Date of Patent: February 5, 2013
    Assignees: Samsung Electronics Co., Ltd., Regents of the University of Minnesota
    Inventors: Kyu-tae Yoo, Seong-jin Kim, Eui-sik Yoon
  • Patent number: 8357957
    Abstract: Provided are a FET-based sensor for detecting an ionic material, an ionic material detecting device including the FET-based sensor, and a method of detecting an ionic material using the FET-based sensor. The FET-based sensor includes: a sensing chamber including a reference electrode and a plurality of sensing FETs; and a reference chamber including a reference electrode and a plurality of reference FETs. The method includes: flowing a first solution into and out of the sensing chamber and the reference chamber of the FET-based sensor; flowing a second solution expected to contain an ionic material into and out of the sensing chamber while continuously flowing the first solution into and out of the reference chamber; measuring a current in a channel region between the source and drain of each of the sensing and reference FETs; and correcting the current of the sensing FETs.
    Type: Grant
    Filed: October 26, 2010
    Date of Patent: January 22, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyu-sang Lee, Kyu-tae Yoo, Jeo-young Shim, Jin-tae Kim, Yeon-ja Cho
  • Patent number: 8293591
    Abstract: A field effect transistor for detecting an analyte having a thiol group includes a substrate, a source region and a drain region formed apart from each other on the substrate, the source region and the drain region being doped such that a polarity of the source and drain region is opposite to a polarity of the substrate, a channel region disposed between the source region and the drain region, an insulating layer formed of an electrically insulating material and disposed on the channel region, a gold layer disposed on the insulating layer and a reference electrode disposed apart from the gold layer.
    Type: Grant
    Filed: April 10, 2007
    Date of Patent: October 23, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jeo-young Shim, Kyu-tae Yoo, Kyu-sang Lee, Won-seok Chung, Yeon-ja Cho, Chang-eun Yoo
  • Patent number: 8198658
    Abstract: A device for detecting biomolecules includes: a semiconductor substrate; a source region and a drain region separately provided at the substrate; a chamber formed at the substrate including a region between the source region and the drain region, the chamber configured to contain a sample including the biomolecules; and an electrode which applies a voltage to the sample in the chamber. The biomolecules are mobile with respect to the electrode and sample. Methods for detecting biomolecules are also disclosed.
    Type: Grant
    Filed: May 22, 2008
    Date of Patent: June 12, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jeo Young Shim, Kyu Tae Yoo, Won Seok Chung, Jung Im Han
  • Patent number: 8038943
    Abstract: A method of detecting a presence of bio-molecules, or a concentration of the target bio-molecules using a field effect transistor, includes allowing a first sample including a first target bio-molecule to contact a sensing surface of the field effect transistor and measuring a change in an electric signal of the field effect transistor, the field effect transistor including a substrate, a source region and a drain region, the source region and the drain region formed apart from each other on the substrate, the source region and the drain region each doped to having an opposite polarity than a polarity of the substrate, a channel region disposed between the source region and the drain region and an insulating layer including the sensing surface, the insulating layer disposed on the channel region.
    Type: Grant
    Filed: April 3, 2007
    Date of Patent: October 18, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyu-tae Yoo, Kyu-sang Lee, Won-seok Chung, Jeo-young Shim, Yeon-ja Cho
  • Patent number: 8035175
    Abstract: A field effect transistor for detecting ionic material and a method of detecting ionic material using the field effect transistor. The field effect transistor for detecting ionic material includes a substrate formed of a semiconductor material, a source region and a drain region spaced apart from each other in the substrate and doped with an opposite conductivity type to that of the substrate, a channel region interposed between the source region and the drain region, an insulating layer disposed on the channel region and formed of an electrically insulating material, a first reference electrode disposed at an edge of the upper portion of the insulating layer and a second reference electrode disposed to be spaced apart from the insulating layer.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: October 11, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jeo-young Shim, Kyu-sang Lee, Kyu-tae Yoo, Won-seok Chung
  • Patent number: 7985453
    Abstract: A method of manufacturing a calibration apparatus for an optical scanner. The method includes reacting a substrate coated with a functional group and a molecule capable of forming an activated excimer to immobilize the molecule on the substrate.
    Type: Grant
    Filed: February 22, 2010
    Date of Patent: July 26, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jeo-young Shim, Sung-ouk Jung, Jin-na Namgoong, Kyu-tae Yoo, Jang-seok Ma
  • Patent number: 7981666
    Abstract: Provided are a sensing switch and a sensing method using the same. The sensing switch includes: a substrate; a supporter on the substrate; a sensing plate that is connected to a side of the supporter and is in parallel with the substrate by a predetermined distance; a receptor binding region on an upper surface of an end portion of the sensing plate; an electric or magnetic field generation device that induces deflection of the sensing plate when a receptor bound to the receptor binding region is selectively bound to an electrically or magnetically active ligand; and a pair of switching electrodes that are separated by a predetermined distance and is connected when the sensing plate contacts the substrate due to the deflection of the sensing plate. A target material need not be labelled, a signal processing of a fluorescent or electrical detection signal using an analysis apparatus is not required, and a signal can be directly decoded by confirming whether a current flows through the switch.
    Type: Grant
    Filed: July 9, 2010
    Date of Patent: July 19, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyu-tae Yoo, Joon-ho Kim, Jun-hong Min, Sung-ouk Jung, Ji-na Namgoong, Kui-hyun Kim, Jeo-young Shim, Kak Namkoong
  • Patent number: 7943970
    Abstract: Provided is a method of detecting the presence of a target bio-molecule or a concentration of the bio-molecule using a field effect transistor. The method includes: contacting a first sample having a first target bio-molecule with a reference electrode of a field effect transistor; measuring a first electric signal change of the field effect transistor; contacting a second sample with a sensing surface of the same field effect transistor; measuring a second electric signal change of the field effect transistor; and comparing the first electric signal with the second electric signal.
    Type: Grant
    Filed: April 3, 2007
    Date of Patent: May 17, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyu-tae Yoo, Kyu-sang Lee, Jeo-young Shim, Won-seok Chung, Yeon-ja Cho
  • Patent number: 7928740
    Abstract: A device and method are disclosed for detecting biomolecules. More specifically, by measuring the change in the electrical properties of a complex between a probe and carbon nanotubes, a non-label detection is achieved, capable of a rapid, sensitive and electrical detection of the presence and concentration of biomolecules in a sample solution.
    Type: Grant
    Filed: November 14, 2007
    Date of Patent: April 19, 2011
    Assignees: Samsung Electronics Co., Ltd., Seoul National University Industry Foundation
    Inventors: Won Seok Chung, Kyu Tae Yoo, Jeo Young Shim, Junghoon Lee, Misun Cha, JungIm Han, Seungwon Jung
  • Publication number: 20110071365
    Abstract: An apparatus and method of providing blood glucose management information includes a determination unit that determines a similarity of a blood glucose change pattern of a user by comparing blood glucose information obtained from the user and stored blood glucose information, an extraction unit that extracts at least one piece of blood glucose information from the stored blood glucose information according to the similarity and generates extracted blood glucose information, and an interface unit which provides the blood glucose management information, which corresponds to the extracted blood glucose information, to the user.
    Type: Application
    Filed: June 28, 2010
    Publication date: March 24, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kwang-hyeon LEE, Kyu-tae YOO
  • Publication number: 20110066451
    Abstract: A method and apparatus for providing health management information to a patient. Patients are grouped according to their personal health records, order is determined between the patients in each group, and health management information of a patient highly ordered in each group is automatically provided to a patient lower ordered in the each group.
    Type: Application
    Filed: May 14, 2010
    Publication date: March 17, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Woo-young Jang, Kyu-tae Yoo
  • Publication number: 20110043213
    Abstract: Provided are a FET-based sensor for detecting an ionic material, an ionic material detecting device including the FET-based sensor, and a method of detecting an ionic material using the FET-based sensor. The FET-based sensor includes: a sensing chamber including a reference electrode and a plurality of sensing FETs; and a reference chamber including a reference electrode and a plurality of reference FETs. The method includes: flowing a first solution into and out of the sensing chamber and the reference chamber of the FET-based sensor; flowing a second solution expected to contain an ionic material into and out of the sensing chamber while continuously flowing the first solution into and out of the reference chamber; measuring a current in a channel region between the source and drain of each of the sensing and reference FETs; and correcting the current of the sensing FETs.
    Type: Application
    Filed: October 26, 2010
    Publication date: February 24, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.,
    Inventors: Kyu-sang LEE, Kyu-tae YOO, Jeo-young SHIM, Jin-tae KIM, Yeon-ja CHO
  • Publication number: 20110010534
    Abstract: A method of displaying health information of a user, the method including: monitoring if a sharing request for a health information of a user is made by an external device, which provides a web page representing the health information of the user in the form of an image; downloading a captured image of the web page from the external device if the sharing request for the health information of the user is made; and displaying the downloaded captured image.
    Type: Application
    Filed: April 9, 2010
    Publication date: January 13, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kwang-hyeon LEE, Kyu-tae YOO
  • Publication number: 20100329931
    Abstract: Provided are a sensing switch and a sensing method using the same. The sensing switch includes: a substrate; a supporter on the substrate; a sensing plate that is connected to a side of the supporter and is in parallel with the substrate by a predetermined distance; a receptor binding region on an upper surface of an end portion of the sensing plate; an electric or magnetic field generation device that induces deflection of the sensing plate when a receptor bound to the receptor binding region is selectively bound to an electrically or magnetically active ligand; and a pair of switching electrodes that are separated by a predetermined distance and is connected when the sensing plate contacts the substrate due to the deflection of the sensing plate. A target material need not be labelled, a signal processing of a fluorescent or electrical detection signal using an analysis apparatus is not required, and a signal can be directly decoded by confirming whether a current flows through the switch.
    Type: Application
    Filed: July 9, 2010
    Publication date: December 30, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyu-tae YOO, Joon-ho KIM, Jun-hong MIN, Sung-ouk JUNG, Ji-na NAMGOONG, Kui-hyun KIM, Jeo-young SHIM, Kak NAMKOONG
  • Patent number: 7859029
    Abstract: Provided are a FET-based sensor for detecting an ionic material, an ionic material detecting device including the FET-based sensor, and a method of detecting an ionic material using the FET-based sensor. The FET-based sensor includes: a sensing chamber including a reference electrode and a plurality of sensing FETs; and a reference chamber including a reference electrode and a plurality of reference FETs. The method includes: flowing a first solution into and out of the sensing chamber and the reference chamber of the FET-based sensor; flowing a second solution expected to contain an ionic material into and out of the sensing chamber while continuously flowing the first solution into and out of the reference chamber; measuring a current in a channel region between the source and drain of each of the sensing and reference FETs; and correcting the current of the sensing FETs.
    Type: Grant
    Filed: January 9, 2007
    Date of Patent: December 28, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyu-sang Lee, Kyu-tae Yoo, Jeo-young Shim, Jin-tae Kim, Yeon-ja Cho