Patents by Inventor Changsoon Kim

Changsoon Kim 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: 20240324414
    Abstract: A display device includes a first pixel, a third pixel, and a third pixel emitting light of different colors, light-emitting diodes corresponding to the first pixel, the second pixel, and the third pixel and emitting light of a same color, and a function layer disposed in a direction in which the light-emitting diodes emit light and including a first color conversion layer corresponding to a first emission area of the first pixel, a second color conversion layer corresponding to a second emission area of the second pixel, and a transmitting layer corresponding to a third emission area of the third pixel. The first color conversion layer includes first quantum dots, the second color conversion layer includes second quantum dots, and each of the first color conversion layer, the second color conversion layer, and the transmitting layer include a base resin in which a plurality of pores are defined.
    Type: Application
    Filed: November 28, 2023
    Publication date: September 26, 2024
    Applicant: Samsung Display Co., Ltd.
    Inventors: Inok Kim, Chansu Kim, Keunchan Oh, Gakseok Lee, Sanghun Lee, Soyun Lee, Jieun Jang, Changsoon Jang
  • Patent number: 12087550
    Abstract: A device for measuring a density of plasma is provided. The device includes a first sensor configured to measure a microwave spectrum of an input port reflection parameter of plasma, the first sensor having a probe including a conductive material and a flat plate shape, and a second sensor configured to measure an optical signal generated from the plasma, the second sensor being configured to detect the optical signal through the probe of the first sensor.
    Type: Grant
    Filed: July 27, 2022
    Date of Patent: September 10, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Vladimir Vsevolodovich Protopopov, Vasily Grigorievich Pashkovskiy, Chansoo Kang, Youngdo Kim, Hoonseop Kim, Sangki Nam, Sejin Oh, Changsoon Lim
  • Publication number: 20240141499
    Abstract: Provided is a method of forming a metal oxide layer may include forming a parent metal oxide layer on the substrate structure; changing the parent metal oxide layer into a cation-exchanged metal oxide layer through a cation exchange reaction between cations in the parent metal oxide layer and cations in the reaction solution by contacting the parent metal oxide layer with a reaction solution containing these latter cations; and performing a heat treatment process on the cation-exchanged metal oxide layer.
    Type: Application
    Filed: October 12, 2023
    Publication date: May 2, 2024
    Inventors: Sunghoon Han, Changsoon Kim
  • Patent number: 11284248
    Abstract: A method and apparatus allocates an IP address between terminals in a wireless communication network in which terminals directly communicate with each other in a wireless scheme without an AP. The method for allocating an Internet Protocol (IP) address of a wireless terminal capable of performing P2P communication, includes a discovery step of discovering at least one external terminal capable of performing the P2P communication and connecting with the at least one discovered external terminal by the wireless terminal; and a negotiation step of negotiating and determining with the external terminal which external terminals become a group owner and a group client in a P2P group, respectively by the wireless terminal. One of the discovery step and the negotiation step includes transmitting an IP address to be allocated to the group client to the external terminal from the wireless terminal.
    Type: Grant
    Filed: July 11, 2019
    Date of Patent: March 22, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jongmu Choi, Changsoon Kim, Hakkwan Kim, Namju Cho
  • Publication number: 20190335322
    Abstract: A method and apparatus allocates an IP address between terminals in a wireless communication network in which terminals directly communicate with each other in a wireless scheme without an AP. The method for allocating an Internet Protocol (IP) address of a wireless terminal capable of performing P2P communication, includes a discovery step of discovering at least one external terminal capable of performing the P2P communication and connecting with the at least one discovered external terminal by the wireless terminal; and a negotiation step of negotiating and determining with the external terminal which external terminals become a group owner and a group client in a P2P group, respectively by the wireless terminal. One of the discovery step and the negotiation step includes transmitting an IP address to be allocated to the group client to the external terminal from the wireless terminal.
    Type: Application
    Filed: July 11, 2019
    Publication date: October 31, 2019
    Inventors: Jongmu Choi, Changsoon Kim, Hakkwan Kim, Namju Cho
  • Patent number: 10397773
    Abstract: A method and apparatus allocates an IP address between terminals in a wireless communication network in which terminals directly communicate with each other in a wireless scheme without an AP. The method for allocating an Internet Protocol (IP) address of a wireless terminal capable of performing P2P communication, includes a discovery step of discovering at least one external terminal capable of performing the P2P communication and connecting with the at least one discovered external terminal by the wireless terminal; and a negotiation step of negotiating and determining with the external terminal which external terminals become a group owner and a group client in a P2P group, respectively by the wireless terminal. One of the discovery step and the negotiation step includes transmitting an IP address to be allocated to the group client to the external terminal from the wireless terminal.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: August 27, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jongmu Choi, Changsoon Kim, Hakkwan Kim, Namju Cho
  • Publication number: 20180139605
    Abstract: A method and apparatus allocates an IP address between terminals in a wireless communication network in which terminals directly communicate with each other in a wireless scheme without an AP. The method for allocating an Internet Protocol (IP) address of a wireless terminal capable of performing P2P communication, includes a discovery step of discovering at least one external terminal capable of performing the P2P communication and connecting with the at least one discovered external terminal by the wireless terminal; and a negotiation step of negotiating and determining with the external terminal which external terminals become a group owner and a group client in a P2P group, respectively by the wireless terminal. One of the discovery step and the negotiation step includes transmitting an IP address to be allocated to the group client to the external terminal from the wireless terminal.
    Type: Application
    Filed: January 12, 2018
    Publication date: May 17, 2018
    Inventors: Jongmu Choi, Changsoon Kim, Hakkwan Kim, Namju Cho
  • Patent number: 9894516
    Abstract: A method and apparatus allocates an IP address between terminals in a wireless communication network in which terminals directly communicate with each other in a wireless scheme without an AP. The method for allocating an Internet Protocol (IP) address of a wireless terminal capable of performing P2P communication, includes a discovery step of discovering at least one external terminal capable of performing the P2P communication and connecting with the at least one discovered external terminal by the wireless terminal; and a negotiation step of negotiating and determining with the external terminal which external terminals become a group owner and a group client in a P2P group, respectively by the wireless terminal. One of the discovery step and the negotiation step includes transmitting an IP address to be allocated to the group client to the external terminal from the wireless terminal.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: February 13, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jongmu Choi, Changsoon Kim, Hakkwan Kim, Namju Cho
  • Patent number: 9730256
    Abstract: A method and apparatus for discovering a device without an access point (AP) to perform P2P communication in a wireless communication network includes: receiving a probe request frame from another P2P device; determining whether a message requesting at least one of a phone number and user identification information is included in the received probe request frame; and transmitting a probe response frame including at least one of the phone number and the user identification information to the another P2P device when the message is included in the probe request frame.
    Type: Grant
    Filed: May 21, 2015
    Date of Patent: August 8, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Changsoon Kim, Byunghoon Seo, Jongmu Choi, Hakkwan Kim, Namju Cho, Chanki Cho
  • Publication number: 20170164188
    Abstract: A method and apparatus allocates an IP address between terminals in a wireless communication network in which terminals directly communicate with each other in a wireless scheme without an AP. The method for allocating an Internet Protocol (IP) address of a wireless terminal capable of performing P2P communication, includes a discovery step of discovering at least one external terminal capable of performing the P2P communication and connecting with the at least one discovered external terminal by the wireless terminal; and a negotiation step of negotiating and determining with the external terminal which external terminals become a group owner and a group client in a P2P group, respectively by the wireless terminal. One of the discovery step and the negotiation step includes transmitting an IP address to be allocated to the group client to the external terminal from the wireless terminal.
    Type: Application
    Filed: February 17, 2017
    Publication date: June 8, 2017
    Inventors: Jongmu Choi, Changsoon Kim, Hakkwan Kim, Namju Cho
  • Patent number: 9578494
    Abstract: A method and apparatus allocates an IP address between terminals in a wireless communication network in which terminals directly communicate with each other in a wireless scheme without an AP. The method for allocating an Internet Protocol (IP) address of a wireless terminal capable of performing P2P communication, includes a discovery step of discovering at least one external terminal capable of performing the P2P communication and connecting with the at least one discovered external terminal by the wireless terminal; and a negotiation step of negotiating and determining with the external terminal which external terminals become a group owner and a group client in a P2P group, respectively by the wireless terminal. One of the discovery step and the negotiation step includes transmitting an IP address to be allocated to the group client to the external terminal from the wireless terminal.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: February 21, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jongmu Choi, Changsoon Kim, Hakkwan Kim, Namju Cho
  • Patent number: 9349976
    Abstract: The present invention relates to a process for preparing an electronic device comprising at least one layer selected from the group consisting of a upper electrode layer, a lower electrode layer, an organic layer and an inorganic layer, which comprises a step of introducing a nanoparticle layer or a nano/micro structure layer by adhering charged nanoparticles, before, after or during forming the layer.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: May 24, 2016
    Assignees: SNU R&DB Foundation, Global Frontier Center for Multiscale Energy System
    Inventors: Changsoon Kim, Hyungchae Kim, Jongcheon Lee, Kyuhee Han, Hyangki Sung, Kinam Jung, Hoseop Choi, Kyungyeon Ha, Man Soo Choi
  • Publication number: 20150257191
    Abstract: A method and apparatus for discovering a device without an access point (AP) to perform P2P communication in a wireless communication network includes: receiving a probe request frame from another P2P device; determining whether a message requesting at least one of a phone number and user identification information is included in the received probe request frame; and transmitting a probe response frame including at least one of the phone number and the user identification information to the another P2P device when the message is included in the probe request frame.
    Type: Application
    Filed: May 21, 2015
    Publication date: September 10, 2015
    Inventors: Changsoon KIM, Byunghoon SEO, Jongmu CHOI, Hakkwan KIM, Namju CHO, Chanki CHO
  • Patent number: 9055391
    Abstract: A method and apparatus for discovering a device without an access point (AP) to perform P2P communication in a wireless communication network includes: receiving a probe request frame from another P2P device; determining whether a message requesting at least one of a phone number and user identification information is included in the received probe request frame; and transmitting a probe response frame including at least one of the phone number and the user identification information to the another P2P device when the message is included in the probe request frame.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: June 9, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Changsoon Kim, Byunghoon Seo, Jongmu Choi, Hakkwan Kim, Namju Cho, Chanki Cho
  • Publication number: 20150003607
    Abstract: A secure connection method and apparatus is provided for establishing secure connections among a plurality of electronic devices forming a group network. The data communication method includes generating, when creating or joining a group network, an encryption key using a password entered by a user. The data communication method also includes generating an identifier of the group network. The data communication method further includes generating a hash function predefined among the electronic devices of the group network. The data communication method includes performing data communication using the encryption key.
    Type: Application
    Filed: June 26, 2014
    Publication date: January 1, 2015
    Inventors: Jongmu Choi, Sunghee Lee, Changsoon Kim
  • Publication number: 20140159030
    Abstract: The present invention relates to a process for preparing an electronic device comprising at least one layer selected from the group consisting of a upper electrode layer, a lower electrode layer, an organic layer and an inorganic layer, which comprises a step of introducing a nanoparticle layer or a nano/micro structure layer by adhering charged nanoparticles, before, after or during forming the layer.
    Type: Application
    Filed: March 4, 2013
    Publication date: June 12, 2014
    Inventors: Changsoon Kim, Hyungchae Kim, Jongcheon Lee, Kyuhee Han, Hyangki Sung, Kinam Jung, Hoseop Choi, Kyungyeon Ha, Man Soo Choi
  • Patent number: 8637345
    Abstract: Methods of transferring a metal and/or organic layer from a patterned stamp, preferably a soft, elastomeric stamp, to a substrate are provided. The patterned metal or organic layer may be used for example, in a wide range of electronic devices. The present methods are particularly suitable for nanoscale patterning of organic electronic components.
    Type: Grant
    Filed: June 18, 2012
    Date of Patent: January 28, 2014
    Assignee: The Trustees Of Princeton University
    Inventors: Changsoon Kim, Stephen R. Forrest
  • Publication number: 20120295425
    Abstract: Methods of transferring a metal and/or organic layer from a patterned stamp, preferably a soft, elastomeric stamp, to a substrate are provided. The patterned metal or organic layer may be used for example, in a wide range of electronic devices. The present methods are particularly suitable for nanoscale patterning of organic electronic components.
    Type: Application
    Filed: June 18, 2012
    Publication date: November 22, 2012
    Inventors: Changsoon KIM, Stephen R. FORREST
  • Patent number: 8222072
    Abstract: Methods of transferring a metal and/or organic layer from a patterned stamp, preferably a soft, elastomeric stamp, to a substrate are provided. The patterned metal or organic layer may be used for example, in a wide range of electronic devices. The present methods are particularly suitable for nanoscale patterning of organic electronic components.
    Type: Grant
    Filed: March 13, 2003
    Date of Patent: July 17, 2012
    Assignee: The Trustees of Princeton University
    Inventors: Changsoon Kim, Stephen R. Forrest
  • Patent number: 7964439
    Abstract: The invention provides a method of depositing a layer of a conductive material, e.g. metal, metal oxide or electroconductive polymer, from a patterned stamp, preferably a soft, elastomeric stamp, to a substrate after an organic layer has been transferred from a patterned stamp to an organic layer over the substrate. The patterned metal or organic layer may be used for example, in a wide range of electronic devices. The present methods are particularly suitable for nanoscale patterning of organic electronic components.
    Type: Grant
    Filed: November 3, 2004
    Date of Patent: June 21, 2011
    Assignee: The Trustees of Princeton University
    Inventors: Changsoon Kim, Yifang Cao, Winston O. Soboyejo, Stephen Forrest