Patents by Inventor Seung Hyun Ryu

Seung Hyun Ryu 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: 10980964
    Abstract: A nasal cannula according to an embodiment of the present invention includes: an oxygen supplying portion which forms a space inside in which a nose and a mouth of a user can be disposed and is able to supply oxygen in a state of being put on by the user into the nose of the user; and a mask portion to which the oxygen supplying portion is attached in a detachable manner therein and is configured to be put on a face of the user. Since a space in which a nose and a mouth of a user can be disposed is provided inside the oxygen supplying portion so that a user can put on the nasal cannula in a convenient state and the oxygen supplying portion is put on in a state of being supported by the mask portion, oxygen can be supplied into the nose of the user and at the same time external air can be filtered.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: April 20, 2021
    Assignee: Sogang University Research Foundation
    Inventors: Tae-Soo Lee, Seung Kwon Oh, Seung Hyun Ryu, Bong Kwan Son, Sung Hun Ha, Dong Min Shin, Yong Sang Shin
  • Patent number: 10416125
    Abstract: A method for determining concentration and pressure of respective gas consisting of multi-gas using emitting and receiving of ultrasound includes: measuring a reference ultrasound flight time; measuring ultrasound flight times at plural concentrations, temperatures and pressures; obtaining an ultrasound flight time table comprising ultrasound flight time change values which are differences between the reference ultrasound flight time, which varies according to parameters of concentration, temperature and pressure, and the measured ultrasound flight time; obtaining an ultrasound amplitude table comprising ultrasound amplitude values of a waveform of a predetermined sequence of the received ultrasound waveform at plural concentrations, temperatures and pressures in a state that concentration, temperature and pressure of the target respective gas are parameters; and calculating the concentration and the pressure of the target gas based on performing temperature compensations for the ultrasound flight time change
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: September 17, 2019
    Assignee: SOGANG UNIVERSITY RESEARCH FOUNDATION
    Inventors: Tae Soo Lee, Seung Hyun Ryu, Hyun Jin Cho, Seung Kwon Oh
  • Publication number: 20190262570
    Abstract: A nasal cannula according to an embodiment of the present invention includes: an oxygen supplying portion which forms a space inside in which a nose and a mouth of a user can be disposed and is able to supply oxygen in a state of being put on by the user into the nose of the user; and a mask portion to which the oxygen supplying portion is attached in a detachable manner therein and is configured to be put on a face of the user. Since a space in which a nose and a mouth of a user can be disposed is provided inside the oxygen supplying portion so that a user can put on the nasal cannula in a convenient state and the oxygen supplying portion is put on in a state of being supported by the mask portion, oxygen can be supplied into the nose of the user and at the same time external air can be filtered.
    Type: Application
    Filed: August 4, 2016
    Publication date: August 29, 2019
    Applicant: SOGANG UNIVERSITY RESEARCH FOUNDATION
    Inventors: Tae-Soo LEE, Seung Kwon OH, Seung Hyun RYU, Bong Kwan SON, Sung Hun HA, Dong Min SHIN, Yong Sang SHIN
  • Patent number: 10315964
    Abstract: According to the present invention, a deuterium-substituted marker for fuel is synthesized through substitution with deuterium so as to have structurally and chemically similar properties to those of a molecule configuring fuel oil. A molecule of the deuterium-substituted marker is significantly similar to the conventional molecule configuring the fuel oil, which may prevent illegal removal of the marker by the fake oil manufacturers. According to the present invention, it is able to pursue public safety and environmental protection from fake oil products, and to prevent national tax evasion, by preventing the illegal mixing of fuel oil to secure a legal distribution of the oil market according to the present invention.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: June 11, 2019
    Assignee: Korea Institute of Petroleum Management
    Inventors: Young-Kwan Lim, Hee-Yeon Baek, Kyoung-Heum Lee, Seung-Hyun Ryu, Ju Min Youn, Jong Ryeol Kim, In Ha Hwang, Jong Han Ha
  • Patent number: 10267632
    Abstract: Provided are non-exposure supplied fuel quantity testing device and method of a vehicle-mounted type, and more particularly, a device formed in a trunk of a vehicle without being exposed to test whether or not the ordered fuel quantity is supplied at the time of supplying fuel. Since the device is formed so as not to be exposed, it is disable to perform an artificial tampering of a lubricator, and since the device is mounted in the trunk, it is enable to measure whether or not the ordered fuel is supplied accurately at the same time as supplying fuel. The present invention relates to a testing method using the testing device.
    Type: Grant
    Filed: August 24, 2016
    Date of Patent: April 23, 2019
    Assignee: KOREA PETROLEUM QUALITY & DISTRIBUTION AUTHORITY
    Inventors: Seung-Hyun Ryu, Jun-Deog Park, Young-Cheol Song, Ju Min Youn, Seung Woo Lee, Seung Heon Lee
  • Publication number: 20180196015
    Abstract: A method for determining concentration and pressure of respective gas consisting of multi-gas using emitting and receiving of ultrasound includes: measuring a reference ultrasound flight time; measuring ultrasound flight times at plural concentrations, temperatures and pressures; obtaining an ultrasound flight time table comprising ultrasound flight time change values which are differences between the reference ultrasound flight time, which varies according to parameters of concentration, temperature and pressure, and the measured ultrasound flight time; obtaining an ultrasound amplitude table comprising ultrasound amplitude values of a waveform of a predetermined sequence of the received ultrasound waveform at plural concentrations, temperatures and pressures in a state that concentration, temperature and pressure of the target respective gas are parameters; and calculating the concentration and the pressure of the target gas based on performing temperature compensations for the ultrasound flight time change
    Type: Application
    Filed: June 22, 2017
    Publication date: July 12, 2018
    Applicant: SOGANG UNIVERSITY RESEARCH FOUNDATION
    Inventors: Tae Soo LEE, Seung Hyun RYU, Hyun Jin CHO, Seung Kwon OH
  • Publication number: 20170297971
    Abstract: According to the present invention, a deuterium-substituted marker for fuel is synthesized through substitution with deuterium so as to have structurally and chemically similar properties to those of a molecule configuring fuel oil. A molecule of the deuterium-substituted marker is significantly similar to the conventional molecule configuring the fuel oil, which may prevent illegal removal of the marker by the fake oil manufacturers. According to the present invention, it is able to pursue public safety and environmental protection from fake oil products, and to prevent national tax evasion, by preventing the illegal mixing of fuel oil to secure a legal distribution of the oil market according to the present invention.
    Type: Application
    Filed: November 9, 2016
    Publication date: October 19, 2017
    Applicant: Korea Institute of Petroleum Management
    Inventors: Young-Kwan LIM, Hee-Yeon BAEK, Kyoung-Heum LEE, Seung-Hyun RYU, Ju Min YOUN, Jong Ryeol KIM, In Ha HWANG, Jong Han HA
  • Publication number: 20170059382
    Abstract: Provided are non-exposure supplied fuel quantity testing device and method of a vehicle-mounted type, and more particularly, a device formed in a trunk of a vehicle without being exposed to test whether or not the ordered fuel quantity is supplied at the time of supplying fuel. Since the device is formed so as not to be exposed, it is disable to perform an artificial tampering of a lubricator, and since the device is mounted in the trunk, it is enable to measure whether or not the ordered fuel is supplied accurately at the same time as supplying fuel. The present invention relates to a testing method using the testing device.
    Type: Application
    Filed: August 24, 2016
    Publication date: March 2, 2017
    Inventors: Seung-Hyun RYU, Jun-Deog PARK, Young-Cheol SONG, Ju Min YOUN, Seung Woo LEE, Seung Heon LEE
  • Patent number: 7924634
    Abstract: A repeater of a global input/output line includes a data transmitter including first and second drivers for outputting data signals of the global input/output line through different transmission routes in response to a transmission direction control signal, and a third driver for driving the global input/output line in response to an output signal of the data transmitter.
    Type: Grant
    Filed: July 1, 2008
    Date of Patent: April 12, 2011
    Assignee: Hynix Semiconductor Inc.
    Inventors: Tae Jin Kang, Seung Hyun Ryu
  • Publication number: 20090153262
    Abstract: A repeater of a global input/output line includes a data transmitter including first and second drivers for outputting data signals of the global input/output line through different transmission routes in response to a transmission direction control signal, and a third driver for driving the global input/output line in response to an output signal of the data transmitter.
    Type: Application
    Filed: July 1, 2008
    Publication date: June 18, 2009
    Inventors: Tae Jin Kang, Seung Hyun Ryu