Patents by Inventor Dong-Ryul KWAK

Dong-Ryul KWAK 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).

  • Method for measuring adhesive strength of thin film using dispersion characteristics of surface waves, and computer-readable recording medium having program for performing same recorded thereon
    Patent number: 11353432
    Abstract: Disclosed are a method for measuring the adhesive strength of a thin film using surface waves, and a computer-readable recording medium having a program for performing same recorded thereon. The method for measuring the adhesive strength of a thin film measures the adhesive strength between a substrate and a thin film by means of an electronic calculator, using sound waves measured from a thin film structure having a thin film formed on a substrate.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: June 7, 2022
    Assignee: Seoul National University of Technology Center for Industry Collaboration
    Inventors: Ik Keun Park, Tae Sung Park, Yu Min Choi, Dong Ryul Kwak
  • METHOD FOR MEASURING ADHESIVE STRENGTH OF THIN FILM USING DISPERSION CHARACTERISTICS OF SURFACE WAVES, AND COMPUTER-READABLE RECORDING MEDIUM HAVING PROGRAM FOR PERFORMING SAME RECORDED THEREON
    Publication number: 20200217820
    Abstract: Disclosed are a method for measuring the adhesive strength of a thin film using surface waves, and a computer-readable recording medium having a program for performing same recorded thereon. The method for measuring the adhesive strength of a thin film measures the adhesive strength between a substrate and a thin film by means of an electronic calculator, using sound waves measured from a thin film structure having a thin film formed on a substrate.
    Type: Application
    Filed: September 14, 2018
    Publication date: July 9, 2020
    Applicant: Seoul National University of Technology Center for Industry Cllaboration
    Inventors: Ik Keun PARK, Tae Sung PARK, Yu Min CHOI, Dong Ryul KWAK
  • Multiple beam path laser optical system using multiple beam reflector
    Patent number: 9739592
    Abstract: A multiple beam path laser optical system using a multiple beam reflector. The multiple beam path laser optical system includes a light source part to generate a laser beam to be irradiated to a specimen, the multiple beam reflector to split a laser beam incident thereto from the light source part and to provide a plurality of optical paths, a main beam splitter to irradiate the laser beam split by the multiple beam reflector to the specimen, a transducer to excite the specimen for signal detection of the laser beam irradiated to the specimen, and a control part to analyze an interference pattern of a laser beam reflected from the specimen and recombined in the main beam splitter.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: August 22, 2017
    Assignee: Foundation for Research and Business, Seoul National University of Science and Technology
    Inventors: Ik-Keun Park, Hae-Sung Park, Tae-Sung Park, Dong-Ryul Kwak
  • MULTIPLE BEAM PATH LASER OPTICAL SYSTEM USING MULTIPLE BEAM REFLECTOR
    Publication number: 20160123717
    Abstract: A multiple beam path laser optical system using a multiple beam reflector. The multiple beam path laser optical system includes a light source part to generate a laser beam to be irradiated to a specimen, the multiple beam reflector to split a laser beam incident thereto from the light source part and to provide a plurality of optical paths, a main beam splitter to irradiate the laser beam split by the multiple beam reflector to the specimen, a transducer to excite the specimen for signal detection of the laser beam irradiated to the specimen, and a control part to analyze an interference pattern of a laser beam reflected from the specimen and recombined in the main beam splitter.
    Type: Application
    Filed: October 30, 2015
    Publication date: May 5, 2016
    Inventors: Ik-Keun PARK, Hae-Sung PARK, Tae-Sung PARK, Dong-Ryul KWAK