Patents by Inventor Kyu Suk Han

Kyu Suk Han 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: 20240145683
    Abstract: A positive electrode active material including a lithium nickel-based composite oxide including secondary particles formed by aggregation of one or more primary particles, wherein a part of cations and a part of anions in the lithium nickel-based composite oxide are substituted, respectively, with cations M? and fluorine anions (F?) in a fluorine-based compound.
    Type: Application
    Filed: May 22, 2023
    Publication date: May 2, 2024
    Inventors: Kyu Suk HAN, Jin Hyeok CHOI, Jae Hoon SHIN, Seul Gi LEE
  • Patent number: 10454099
    Abstract: A positive active material for a rechargeable lithium battery and a rechargeable lithium battery including the same are disclosed. The positive active material includes a core including a lithium intercalation compound and a crystalline coating compound on a surface of the core and including a crystalline aluminum hydroxide, a crystalline aluminum oxyhydroxide, or a combination thereof.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: October 22, 2019
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Young-hun Lee, Ji-Yeon Jang, Soon-Kie Hong, Young-Ki Kim, Soon-Rewl Lee, Ick-Kyu Choi, Ji-Hyun Kim, Soo-Youn Park, Hyun-Joo Je, Chang-Wook Kim, Kyu-Suk Han
  • Publication number: 20170358794
    Abstract: A positive active material for a rechargeable lithium battery and a rechargeable lithium battery including the same are disclosed. The positive active material includes a core including a lithium intercalation compound and a crystalline coating compound on a surface of the core and including a crystalline aluminum hydroxide, a crystalline aluminum oxyhydroxide, or a combination thereof.
    Type: Application
    Filed: June 5, 2017
    Publication date: December 14, 2017
    Inventors: Young-Hun LEE, Ji-Yeon JANG, Soon-Kie HONG, Young-Ki KIM, Soon-Rewl LEE, Ick-Kyu CHOI, Ji-Hyun KIM, Soo-Youn PARK, Hyun-Joo JE, Chang-Wook KIM, Kyu-Suk HAN
  • Patent number: 9288048
    Abstract: A real-time frame authentication protocol is presented for in-vehicle networks. A frame identifier is made anonymous to unauthorized entities but identifiable by the authorized entities. Anonymous identifiers are generated on a per-frame basis and embedded into each data frame transmitted by a sending ECU. Receiving ECUs use the anonymous identifiers to filter incoming data frames before verifying data integrity. Invalid data frame are filtered without requiring any additional run-time computations.
    Type: Grant
    Filed: September 23, 2014
    Date of Patent: March 15, 2016
    Assignee: The Regents Of The University Of Michigan
    Inventors: Kyu Suk Han, Swapna Divya Potluri, Kang G. Shin
  • Publication number: 20150089236
    Abstract: A real-time frame authentication protocol is presented for in-vehicle networks. A frame identifier is made anonymous to unauthorized entities but identifiable by the authorized entities. Anonymous identifiers are generated on a per-frame basis and embedded into each data frame transmitted by a sending ECU. Receiving ECUs use the anonymous identifiers to filter incoming data frames before verifying data integrity. Invalid data frame are filtered without requiring any additional run-time computations.
    Type: Application
    Filed: September 23, 2014
    Publication date: March 26, 2015
    Inventors: Kyu Suk Han, Swapna Divya Potluri, Kang G. Shin
  • Patent number: 8516252
    Abstract: A method and apparatus for authenticating a sensor node in a sensor network. The method for authenticating a sensor node by a first sink node in a sensor network includes receiving an authentication request using an authentication ticket from the sensor node, identifying a second sink node which has issued the authentication ticket, decoding the authentication ticket using a group key, which is previously stored in correspondence to the second sink node to confirm the validity of the authentication ticket, when the second sink node is included in a neighboring node list, normally processing authentication for the sensor node, generating an authentication ticket using a group key of the first sink node, and transmitting the generated authentication ticket to the sensor node.
    Type: Grant
    Filed: June 25, 2010
    Date of Patent: August 20, 2013
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Tae-Shik Shon, Yong-Suk Park, Soon-Seob Han, Kwang-Jo Kim, Kyu-Suk Han, Jang-Seong Kim
  • Patent number: 8412939
    Abstract: Disclosed a system and method for mutual authentication between a node and a sink in a sensor network. At least one sink periodically creates a neighboring sink list including information on at least one adjacent sink, and the sink requests node authentication to a base station when receiving an authentication request from the node and transmits its own neighboring sink list to the node when the node authentication has been completed. When the node moves and requests authentication to another sink, the another sink stores a neighboring sink list received from the node, determines if a node-authenticable sink exists in its own neighboring sink list according to the authentication request, and requests re-authentication of the node to the node-authenticable sink when the node-authenticable sink exists, so that re-authentication between the node and the sink is easily performed.
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: April 2, 2013
    Assignees: Samsung Electronics Co., Ltd, Korea Advanced Institute of Science and Technology (KAIST)
    Inventors: Tae-Shik Shon, Yong-Suk Park, Soon-Seob Han, Kwang-Jo Kim, Kyu-Suk Han, Jang-Seong Kim
  • Patent number: 8243928
    Abstract: An authentication method is provided in which a first portable device generates and transmits a first random number and a first timestamp to a first USIM in the first portable device; the first USIM calculates a first sign for the first portable device; the first portable device requests authentication for authenticated communication from a second portable device through transmission of the first random number, the first timestamp, and the first sign to the second portable device; the second portable device generates a second random number and a second timestamp and transmits the information to a second USIM in the second portable device; the second USIM generates a second sign for the second portable device and a second personal key which the second portable device transmits to the first portable device; the first portable device then transmits the information to the first USIM which generates a first personal key for authenticated communication.
    Type: Grant
    Filed: August 7, 2008
    Date of Patent: August 14, 2012
    Assignees: Samsung Electronics Co., Ltd., Information and Communications University Research and Cooperation Group
    Inventors: Young-Jun Park, Min-Young Ahn, Kug Shin, Kwang-Jo Kim, Kyu-Suk Han
  • Publication number: 20110126015
    Abstract: A system is provided for authentication between a mobile device (MD) and a sink using a mobile communication network. If a sink authentication request for the sink is received from the MD, a base station (BS) sends a sink authentication response including sink authentication information for the sink, to the MD. The MD forwards the sink authentication request for the sink to the BS, and if a sink authentication response is received from the BS, authenticates the sink using the received sink authentication information. The sink performs authentication with the MD.
    Type: Application
    Filed: November 24, 2010
    Publication date: May 26, 2011
    Applicants: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and Technology (KAIST)
    Inventors: Tae-Shik SHON, Yong-Suk Park, Kyu-Suk Han, Kwang-Jo Kim, Jang-Seong Kim
  • Publication number: 20100332831
    Abstract: A method and apparatus for authenticating a sensor node in a sensor network. The method for authenticating a sensor node by a first sink node in a sensor network includes receiving an authentication request using an authentication ticket from the sensor node, identifying a second sink node which has issued the authentication ticket, decoding the authentication ticket using a group key, which is previously stored in correspondence to the second sink node to confirm the validity of the authentication ticket, when the second sink node is included in a neighboring node list, normally processing authentication for the sensor node, generating an authentication ticket using a group key of the first sink node, and transmitting the generated authentication ticket to the sensor node.
    Type: Application
    Filed: June 25, 2010
    Publication date: December 30, 2010
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Tae-Shik SHON, Yong-Suk Park, Soon-Seob Han, Kwang-Jo Kim, Kyu-Suk Han, Jang-Seong Kim
  • Publication number: 20100332830
    Abstract: Disclosed a system and method for mutual authentication between a node and a sink in a sensor network. At least one sink periodically creates a neighboring sink list including information on at least one adjacent sink, and the sink requests node authentication to a base station when receiving an authentication request from the node and transmits its own neighboring sink list to the node when the node authentication has been completed. When the node moves and requests authentication to another sink, the another sink stores a neighboring sink list received from the node, determines if a node-authenticable sink exists in its own neighboring sink list according to the authentication request, and requests re-authentication of the node to the node-authenticable sink when the node-authenticable sink exists, so that re-authentication between the node and the sink is easily performed.
    Type: Application
    Filed: June 23, 2010
    Publication date: December 30, 2010
    Applicants: Samsung Electronics Co., Ltd., Korea Advanced Institure of Science and Technology (KAIST)
    Inventors: Tae-Shik Shon, Yong-Suk Park, Soon-Seob Han, Kwang-Jo Kim, Kyu-Suk Han, Jang-Seong Kim
  • Publication number: 20090041250
    Abstract: An authentication method is provided in which a first portable device generates and transmits a first random number and a first timestamp to a first USIM in the first portable device; the first USIM calculates a first sign for the first portable device; the first portable device requests authentication for authenticated communication from a second portable device through transmission of the first random number, the first timestamp, and the first sign to the second portable device; the second portable device generates a second random number and a second timestamp and transmits the information to a second USIM in the second portable device; the second USIM generates a second sign for the second portable device and a second personal key which the second portable device transmits to the first portable device; the first portable device then transmits the information to the first USIM which generates a first personal key for authenticated communication.
    Type: Application
    Filed: August 7, 2008
    Publication date: February 12, 2009
    Applicants: SAMSUNG ELECTRONICS CO., LTD., INFORMATION AND COMMUNICATIONS UNIVERSITY RESEARCH AND COOPERATION GROUP
    Inventors: Young-Jun Park, Min-Young Ahn, Kug Shin, Kwang-Jo Kim, Kyu-Suk Han
  • Patent number: 6686725
    Abstract: The present invention relates generally to circuit for stabilizing a voltage, and more particularly to a power supply circuit of a power factor compensation type maintaining a PFC output voltage to be either of daulized magnitudes according to an input voltage after classifying the input voltages by a certain critical voltage range, thus improving an efficiency by 2 to 3% in case of the low AC input voltage.
    Type: Grant
    Filed: November 12, 2002
    Date of Patent: February 3, 2004
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Heung Gyoon Choi, Kyu Suk Han