Patents by Inventor Hyun-il Choi

Hyun-il 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).

  • Patent number: 11927890
    Abstract: A substrate processing apparatus includes a photoresist coater applying a photoresist film on a substrate, a humidifier increasing an amount of moisture in an ambient to which the photoresist film on the substrate is exposed, and an exposer irradiating the photoresist film exposed to the ambient having the increased amount of moisture with light. The humidifier is disposed between the photoresist coater and the exposer.
    Type: Grant
    Filed: August 22, 2022
    Date of Patent: March 12, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seok Heo, Cha Won Koh, Sang Joon Hong, Hyun Woo Kim, Kyung-Won Kang, Dong-Wook Kim, Kyung Won Seo, Young Il Jang, Yong Suk Choi
  • Patent number: 8144200
    Abstract: Disclosed is a technique for testing liquid crystal display modules which are driven in various image formats or drive frequencies by using one scanning converter, a testing apparatus of a liquid crystal display module, including: a scan box controller configured to provide a menu setting screen for setting a resolution and a drive frequency of a liquid crystal display module; a scanning converter configured to adjust and output a resolution and a drive frequency of an input image signal supplied to the liquid crystal display module according to a setting set by a user on the menu setting screen; and the liquid crystal display module configured to display an image signal of a resolution supplied from the scanning converter.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: March 27, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Jeong-Hwan Yoon, Sun-Woo Kwag, Kwang-Won Yang, Hyun Il Choi
  • Publication number: 20090303331
    Abstract: Disclosed is a technique for testing liquid crystal display modules which are driven in various image formats or drive frequencies by using one scanning converter, a testing apparatus of a liquid crystal display module, including: a scan box controller configured to provide a menu setting screen for setting a resolution and a drive frequency of a liquid crystal display module; a scanning converter configured to adjust and output a resolution and a drive frequency of an input image signal supplied to the liquid crystal display module according to a setting set by a user on the menu setting screen; and the liquid crystal display module configured to display an image signal of a resolution supplied from the scanning converter.
    Type: Application
    Filed: December 19, 2008
    Publication date: December 10, 2009
    Inventors: Jeong-Hwan Yoon, Sun-Woo Kwag, Kwang-Won Yang, Hyun Il Choi
  • Publication number: 20090012879
    Abstract: An electronic payment system includes a receiver for receiving order information which includes order numbers and the settlement accounts for the product and the service ordered by a first client or a second client from an affiliated store system. A first transmitter is provided for transmitting settlement request information which includes settlement accounts for the ordered product and service to a second client making payment on behalf of a first client. A settlement processor is provided for settlement processing of the settlement accounts through a settlement unit selected by the second client by interworking with the second client. A second transmitter is provided for transmitting settlement processing results to the second client and the affiliated store system.
    Type: Application
    Filed: July 6, 2007
    Publication date: January 8, 2009
    Inventor: Hyun-il Choi
  • Patent number: 7336974
    Abstract: A system and a method for PIN blocking on a terminal for mobile finance in accordance with the present invention can remotely block a smart chip within a mobile communication terminal, when a customer loses the terminal for using a mobile financial service. This prevents a finder or a third party from obtaining information stored in the smart chip or accessing the mobile financial service as the owner of the terminal. As a result, it can remarkably increase security for customer information and financial transactions.
    Type: Grant
    Filed: December 15, 2004
    Date of Patent: February 26, 2008
    Assignee: KEYZAP Inc.
    Inventor: Hyun-il Choi
  • Patent number: 7258267
    Abstract: The present invention generally relates to a wireless banking system and a wireless banking method using a mobile phone. The mobile phone includes a smart card inputting smart card information consisting of bank account information, log information, and an authentication key. A card applet is provided which operates the smart card information. The banking service uses a common full text and individual full texts used for banking transactions, prepared through the smart card information and an input of the mobile phone. An encoding/decoding module is provided for encoding the banking service full text and decoding the response to the banking service full text by using a session key; and a card manager communicating the application with the smart card.
    Type: Grant
    Filed: December 15, 2004
    Date of Patent: August 21, 2007
    Assignee: Keyzap Inc.
    Inventor: Hyun-il Choi
  • Publication number: 20050150945
    Abstract: The present invention generally relates to a wireless banking system and a wireless banking method using a mobile phone. The mobile phone includes a smart card inputting smart card information consisting of bank account information, log information, and an authentication key. A card applet is provided which operates the smart card information. The banking service uses a common full text and individual full texts used for banking transactions, prepared through the smart card information and an input of the mobile phone. An encoding/decoding module is provided for encoding the banking service full text and decoding the response to the banking service full text by using a session key; and a card manager communicating the application with the smart card.
    Type: Application
    Filed: December 15, 2004
    Publication date: July 14, 2005
    Inventor: Hyun-il Choi
  • Publication number: 20050153742
    Abstract: A system and a method for PIN blocking on a terminal for mobile finance in accordance with the present invention can remotely block a smart chip within a mobile communication terminal, when a customer loses the terminal for using a mobile financial service. This prevents a finder or a third party from obtaining information stored in the smart chip or accessing the mobile financial service as the owner of the terminal. As a result, it can remarkably increase security for customer information and financial transactions.
    Type: Application
    Filed: December 15, 2004
    Publication date: July 14, 2005
    Inventor: Hyun-il Choi