Patents by Inventor Eui Sun Choi

Eui Sun Choi 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: 20230316844
    Abstract: The present disclosure relates to a method of operating a bill transport path switching device in an automated teller machine (ATM), which increases the transfer speed of bills by narrowing a transfer interval between the bills and improves efficiency of a bill deposit and counting process, in a way to accurately calculate timing at which each bill enters the bill transport path switching device so that the bills are transferred without an error regardless of whether a transparent part is included in the bill even in a situation in which paper bills and polymer bills are transferred together, by controlling switching timing of the bill transport path switching device that is provided in the transport path of bills within an ATM for handling polymer bills based on a sensor signal of a bill detection sensor that is provided in a discrimination part of the ATM.
    Type: Application
    Filed: March 30, 2023
    Publication date: October 5, 2023
    Inventors: Hyun Soo JANG, Yun Su PARK, JIn You LIM, Sung Ho PARK, Da Hye SHIN, Seung Ki KIM, Eui Sun CHOI, Hyun Ji JO
  • Patent number: 11600515
    Abstract: Provided are a die pickup module and a die bonding apparatus including the same. The die pickup module includes a wafer stage for supporting a wafer including dies attached on a dicing tape, a die ejector arranged under the dicing tape and for separating a die to be picked up from the dicing tape, a non-contact picker for picking up the die in a non-contact manner so as not to contact a front surface of the die, a vacuum gripper for partially vacuum adsorbing a rear surface of the die picked up by the non-contact picker and an inverting driving unit for inverting the vacuum gripper to invert the die so that a rear surface of the die gripped by the vacuum gripper faces upward.
    Type: Grant
    Filed: August 25, 2020
    Date of Patent: March 7, 2023
    Assignees: Semes Co., Ltd, Samsung Electronics Co., Ltd.
    Inventors: Chang Bu Jeong, Min Gu Lee, Eui Sun Choi, Kang San Lee, Dae Ho Min, Seung Dae Seok
  • Patent number: 10488559
    Abstract: An anti-reflective film includes a transparent substrate, and a high hardness coating layer on at least one surface of the transparent substrate, the high hardness coating layer having a hardness of about 4 H or higher and a moth-eye pattern.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: November 26, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Nam-il Koo, Min-Seok Choi, Eui-sun Choi, Hyung-kyu Lee, Ji-min Lee
  • Patent number: 10451772
    Abstract: Example embodiments relate to a manufacturing device of an anti-reflecting structure and a method for manufacturing the anti-reflecting structure. The manufacturing device of an anti-reflecting structure includes a carrier film on which a stamp structure is formed, an unwinding unit which unwinds the carrier film, a substrate support unit which provides a target substrate to the carrier film, a pressing unit which applies pressure to the carrier film so that a resin provided in the stamp structure is provided to the target substrate, and a winding unit which winds the carrier film from which an anti-reflecting pattern is transferred to the target substrate, wherein the pressing unit includes a chamber which stores the target substrate, and a vent hole formed in the chamber, and air within the chamber is discharged through the vent hole to lower the air pressure in the chamber and apply pressure to the carrier film.
    Type: Grant
    Filed: January 8, 2016
    Date of Patent: October 22, 2019
    Assignee: Samsung Electronics, Co., Ltd.
    Inventors: Eui-Sun Choi, Nam-Ii Koo, Ji-Min Lee, Hyung-Kyu Lee, Min-Seok Choi
  • Patent number: 10318802
    Abstract: The present disclosure relates to a worn banknote identification method and an ATM (Automated Teller Machine) using the same, and more particularly, to a worn banknote identification method which acquires an image of a banknote inserted into an ATM, divides pixels of the acquired banknote image into a bright region and dark region depending on a brightness distribution of the banknote image, determines the wear level of the banknote by comparing a difference between the average brightness values of the two regions to a preset reference value, and separately stores the inserted banknote into a reject box depending on the wear level of the banknote, and an ATM using the same.
    Type: Grant
    Filed: July 24, 2017
    Date of Patent: June 11, 2019
    Assignees: HYOSUNG TNS INC., INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY
    Inventors: Eui Sun Choi, Yoon Kill Baek, Sang Wook Baek, Sang Hun Lee, Chul Hee Lee
  • Publication number: 20180032805
    Abstract: The present disclosure relates to a worn banknote identification method and an ATM (Automated Teller Machine) using the same, and more particularly, to a worn banknote identification method which acquires an image of a banknote inserted into an ATM, divides pixels of the acquired banknote image into a bright region and dark region depending on a brightness distribution of the banknote image, determines the wear level of the banknote by comparing a difference between the average brightness values of the two regions to a preset reference value, and separately stores the inserted banknote into a reject box depending on the wear level of the banknote, and an ATM using the same.
    Type: Application
    Filed: July 24, 2017
    Publication date: February 1, 2018
    Inventors: Eui Sun CHOI, Yoon Kill BAEK, Sang Wook BAEK, Sang Hun LEE, Chul Hee LEE
  • Publication number: 20160370505
    Abstract: An anti-reflective film includes a transparent substrate, and a high hardness coating layer on at least one surface of the transparent substrate, the high hardness coating layer having a hardness of about 4H or higher and a moth-eye pattern.
    Type: Application
    Filed: March 18, 2016
    Publication date: December 22, 2016
    Inventors: Nam-il KOO, Min-seok CHOI, Eui-sun CHOI, Hyung-kyu LEE, Ji-min LEE
  • Publication number: 20160229165
    Abstract: Example embodiments relate to a manufacturing device of an anti-reflecting structure and a method for manufacturing the anti-reflecting structure. The manufacturing device of an anti-reflecting structure includes a carrier film on which a stamp structure is formed, an unwinding unit which unwinds the carrier film, a substrate support unit which provides a target substrate to the carrier film, a pressing unit which applies pressure to the carrier film so that a resin provided in the stamp structure is provided to the target substrate, and a winding unit which winds the carrier film from which an anti-reflecting pattern is transferred to the target substrate, wherein the pressing unit includes a chamber which stores the target substrate, and a vent hole formed in the chamber, and air within the chamber is discharged through the vent hole to lower the air pressure in the chamber and apply pressure to the carrier film.
    Type: Application
    Filed: January 8, 2016
    Publication date: August 11, 2016
    Inventors: Eui-Sun CHOI, Nam-II KOO, Ji-Min LEE, Hyung-Kyu LEE, Min-Seok CHOI
  • Patent number: 8894406
    Abstract: Disclosed herein is a patterning mold configured to form a micropattern on a substrate or glass. The disclosed patterning mold includes a transfer body with a patterning part formed at one end of the transfer body to transfer a nanoparticle material to one surface of the substrate. The patterning mold further includes a fixing member coupled to an exterior of the transfer body, to prevent or reduce deformation of the exterior of the transfer body.
    Type: Grant
    Filed: September 9, 2011
    Date of Patent: November 25, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Eui Sun Choi, Eun Soo Hwang, Young Tae Cho, Dong Min Kim, Jeong Gil Kim, Jong Woo Lee, Eun Ah Park
  • Publication number: 20140252679
    Abstract: A large-scale imprint apparatus includes a roll-to-roll unit configured to wind or rewind a flexible substrate, a stage arranged adjacent to a winding path of the flexible substrate, the stage being configured to support a stamp master with a master pattern or to support a substrate, and a stamping pressing unit arranged adjacent to the stage, the stamping pressing unit being configured to press the flexible substrate against the stamp master or against the substrate.
    Type: Application
    Filed: March 5, 2014
    Publication date: September 11, 2014
    Inventors: Eun Soo HWANG, Eui Sun CHOI, Sung Hoon LEE
  • Publication number: 20120160112
    Abstract: According to example embodiments, a printing apparatus includes a wafer delivery unit configured to move and support a wafer, an optical microscope configured to inspect the wafer, a pattern transfer unit configured to display a position of a defect on the wafer detected using the optical microscope.
    Type: Application
    Filed: December 21, 2011
    Publication date: June 28, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Eun Soo Hwang, Jin Sung Kim, Young Jeong Kim, Jong Woo Lee, Young Tae Cho, Dong Min Kim, Tae Young Ra, Eui Sun Choi, Eun Ah Park
  • Publication number: 20120082745
    Abstract: Disclosed herein is a patterning mold configured to form a micropattern on a substrate or glass. The disclosed patterning mold includes a transfer body with a patterning part formed at one end of the transfer body to transfer a nanoparticle material to one surface of the substrate. The patterning mold further includes a fixing member coupled to an exterior of the transfer body, to prevent or reduce deformation of the exterior of the transfer body.
    Type: Application
    Filed: September 9, 2011
    Publication date: April 5, 2012
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Eui Sun Choi, Eun Soo Hwang, Young Tae Cho, Dong Min Kim, Jeong Gil Kim, Jong Woo Lee, Eun Ah Park