Patents by Inventor Gi Hwan KANG

Gi Hwan 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).

  • Publication number: 20200326912
    Abstract: Provided are a random number generating device and an operating the same. The random number generating device includes a particle detector, a pulse generator, a clock counter, and a random number converter. The particle detector detects particles emitted from a radioactive isotope. The pulse generator generates pulses corresponding to the particles. The clock counter counts the number of clocks during time intervals between the pulses and generates a plurality of count values. The random number converter adjusts a clock frequency, based on a minimum value and a maximum value of the plurality of count values and converts a target count value generated depending on the adjusted clock frequency into a random number.
    Type: Application
    Filed: April 8, 2020
    Publication date: October 15, 2020
    Inventors: Kyung Hwan PARK, Seong Mo PARK, Byounggun CHOI, Sung Weon KANG, Tae Wook KANG, Jae-Jin LEE, In Gi LIM
  • Publication number: 20200313298
    Abstract: Disclosed is a patch antenna, which is formed so that the upper surface of a dielectric layer has a wider area than the lower surface thereof and is mounted on a printed circuit board to form an air gap, thus maximizing antenna performance while implementing lightweight. The disclosed patch antenna includes a dielectric layer, a radiation patch formed on the upper surface of the dielectric layer, and a lower patch formed on the lower surface of the dielectric layer; and the dielectric layer is formed so that an area of the upper surface is wider than an area of the lower surface to form an air gap between the printed circuit board and the dielectric layer.
    Type: Application
    Filed: June 2, 2017
    Publication date: October 1, 2020
    Inventors: Chul HWANG, In-Jo JEONG, Sang-O KIM, Hyun-Woo OH, Dong-Hwan KOH, Won-Hee LEE, Tae-Byung PARK, Gi-Cho KANG, Keun-Ho BAEK
  • Publication number: 20200247106
    Abstract: A solar cell module disassembling device is disclosed. The device of present invention comprises a frame unit, wherein a laminated panel having a first panel and a second panel is mounted on the frame unit, and wherein the first and second panels are stacked and bonded; a guide module, being elongated in a forward and backward direction; a scraper unit, being movably coupled to the guide module, having a blade module, wherein the blade module moves in the forward and backward direction and presses the laminated panel and disassembles the laminated panel; and a transfer unit, being coupled to the scraper unit, delivering a driving force to the scraper unit, transferring the scraper unit.
    Type: Application
    Filed: August 12, 2019
    Publication date: August 6, 2020
    Applicant: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Jin Seok Lee, Young Soo Ahn, Gi Hwan Kang, Jun Kyu Lee
  • Patent number: 10389300
    Abstract: The present invention relates to a fault diagnosis for a photovoltaic system. A fault diagnosis apparatus includes a temperature sensor unit measuring both an internal temperature value of the junction box and a surface temperature value of the solar module; a voltage sensor provided in the junction box; and an operation unit determining where a fault occurs among the solar module, an inside of the junction box, and the inverter by comparing measured values of the temperature sensor unit with a measured value of the voltage sensor. According to the present invention, initial investment cost is inexpensive. In addition, it is possible to detect solar module faults that are difficult to be checked by the naked eye.
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: August 20, 2019
    Assignee: Korea Institute of Energy Research
    Inventors: Sukwhan Ko, Youngseok Jung, Gi-Hwan Kang, Youngchul Ju, Hyemi Hwang, Junghun So, Hee-eun Song
  • Publication number: 20180133720
    Abstract: Disclosed is a partial dismantling device of a photovoltaic module capable of classifying and collecting the photovoltaic module for recycling the photovoltaic module which includes: a transfer unit for transferring a photovoltaic module; a sensor unit for distinguishing grinding heights of the photovoltaic module arranged on the transfer unit; a grind unit provided with a plurality of grinders in multiple levels, to grind the element layers of a grinding region into particles of collectible forms; and a suction unit provided with a plurality of inhalers respectively corresponding to the plurality of grinders, to classify the particles pulverized by the grind unit and to inhale the same. Thereby, the present invention may improve the efficiency in the subsequent classifying process of the photovoltaic module particles in a classifying unit, with an advantage of applying the partial dismantling device of the photovoltaic module irrespective of damages on a glass substrate.
    Type: Application
    Filed: November 9, 2017
    Publication date: May 17, 2018
    Applicant: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Jin-seok LEE, Young-soo AHN, Gi-hwan KANG
  • Publication number: 20170063304
    Abstract: The present invention relates to a fault diagnosis for a photovoltaic system. A fault diagnosis apparatus includes a temperature sensor unit measuring both an internal temperature value of the junction box and a surface temperature value of the solar module; a voltage sensor provided in the junction box; and an operation unit determining where a fault occurs among the solar module, an inside of the junction box, and the inverter by comparing measured values of the temperature sensor unit with a measured value of the voltage sensor. According to the present invention, initial investment cost is inexpensive. In addition, it is possible to detect solar module faults that are difficult to be checked by the naked eye.
    Type: Application
    Filed: October 8, 2015
    Publication date: March 2, 2017
    Applicant: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Sukwhan KO, Youngseok JUNG, Gi-Hwan KANG, Youngchul JU, Hyemi HWANG, Junghun SO, Hee-eun SONG
  • Patent number: 9455367
    Abstract: Provided is a method of disassembling a photovoltaic module. The method includes: applying heat to the photovoltaic module in an oxidizing atmosphere; removing an insulating protective layer wrapping a photovoltaic cell of the photovoltaic module; and obtaining the photovoltaic cell of the photovoltaic module.
    Type: Grant
    Filed: October 1, 2014
    Date of Patent: September 27, 2016
    Assignee: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Jin Seok Lee, Young Soo Ahn, Bo Yun Jang, Joon Soo Kim, Gi Hwan Kang
  • Publication number: 20150090406
    Abstract: Provided is a method of disassembling a photovoltaic module. The method includes: applying heat to the photovoltaic module in an oxidizing atmosphere; removing an insulating protective layer wrapping a photovoltaic cell of the photovoltaic module; and obtaining the photovoltaic cell of the photovoltaic module.
    Type: Application
    Filed: October 1, 2014
    Publication date: April 2, 2015
    Inventors: Jin Seok LEE, Young Soo AHN, Bo Yun JANG, Joon Soo KIM, Gi Hwan KANG