Patents by Inventor Dae-youb Kim

Dae-youb 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: 20200230253
    Abstract: Provided is a conjugate in which an immunoglobulin Fc region is linked to an iduronate-2-sulfatase enzyme through a non-peptide polymer linker moiety. Further, provided are a conjugate, a method for preparing the same, and a composition including the same in which a non-peptide polymer linker moiety is specifically linked to an immunoglobulin Fc.
    Type: Application
    Filed: July 27, 2018
    Publication date: July 23, 2020
    Applicant: HANMl PHARM. CO., LTD.
    Inventors: Dae Jin KIM, Jung Kuk KIM, Sung Youb JUNG, Se Chang KWON
  • Patent number: 10660940
    Abstract: A method for preparing a conjugate by linking a physiologically active polypeptide, a non-peptidyl polymer linker, and an immunoglobulin constant region via a covalent bond are disclosed. The method enables an efficient preparation of a physiologically active polypeptide conjugate, in which a salt is used in a coupling reaction to improve the problem of low production yield during preparation of the physiologically active polypeptide conjugate.
    Type: Grant
    Filed: March 5, 2014
    Date of Patent: May 26, 2020
    Assignee: HANMI PHARM. CO., LTD
    Inventors: Myung Hyun Jang, Min Young Kim, Dae Jin Kim, Sung Youb Jung, Se Chang Kwon
  • Patent number: 10550168
    Abstract: Disclosed are a composition for preventing or treating diabetes, disbesity or diabetic complications, containing an oxyntomodulin analog as an active ingredient and a method for treating diabetes, diabesity or diabetic complications, including administering a pharmaceutically effective amount of an oxyntomodulin analog to a subject. The oxyntomodulin analog shows a greater activity to activate a GLP-1 receptor and a glucagon receptor, than native oxyntomodulin. The oxyntomodulin analog induces an expansion of beta-cells and increases insulin secretion, thereby reducing blood glucose levels that were increased due to a high-calorie and high-fat diet. The oxyntomodulin analog induces decreases in a body weight and appetite to improve insulin sensitivity and is useful in maintaining normal blood glucose levels.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: February 4, 2020
    Assignee: Hanmi Pharm. Co., Ltd.
    Inventors: Jin Sun Kim, Dae Jin Kim, Sang Hyun Lee, Sung Youb Jung, Se Chang Kwon
  • Publication number: 20190321485
    Abstract: The present invention relates to a conjugate comprising oxyntomodulin, an immunoglobulin Fc region, and non-peptidyl polymer wherein the conjugate being obtainable by covalently linking oxyntomodulin to immunoglobulin Fc region via non-peptidyl polymer, and a pharmaceutical composition for the prevention or treatment of obesity comprising the conjugates. The conjugate comprising oxyntomodulin and the immunoglobulin Fc of the present invention reduces food intake, suppresses gastric emptying, and facilitates lipolysis without side-effects, unlike native oxyntomodulin, and also shows excellent receptor-activating effects and long-term sustainability, compared to native oxyntomodulin. Thus, it can be widely used in the treatment of obesity with safety and efficacy.
    Type: Application
    Filed: July 9, 2019
    Publication date: October 24, 2019
    Inventors: SUNG YOUB JUNG, DAE JIN KIM, SUNG HEE PARK, YOUNG EUN WOO, IN YOUNG CHOI, SE CHANG KWON
  • Patent number: 10363320
    Abstract: The present invention relates to a conjugate comprising oxyntomodulin, an immunoglobulin Fc region, and non-peptidyl polymer wherein the conjugate being obtainable by covalently linking oxyntomodulin to immunoglobulin Fc region via non-peptidyl polymer, and a pharmaceutical composition for the prevention or treatment of obesity comprising the conjugates. The conjugate comprising oxyntomodulin and the immunoglobulin Fc of the present invention reduces food intake, suppresses gastric emptying, and facilitates lipolysis without side-effects, unlike native oxyntomodulin, and also shows excellent receptor-activating effects and long-term sustainability, compared to native oxyntomodulin. Thus, it can be widely used in the treatment of obesity with safety and efficacy.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: July 30, 2019
    Assignee: Hanmi Science Co., Ltd.
    Inventors: Sung Youb Jung, Dae Jin Kim, Sung Hee Park, Young Eun Woo, In Young Choi, Se Chang Kwon
  • Patent number: 9571213
    Abstract: A tag generation method for generating tags used in data packets in a broadcast encryption system is provided. The method includes detecting at least one revoked leaf node; setting a node identification (node ID) assigned to at least one node among nodes assigned node IDs at a layer 0 and to which the at least one revoked leaf node is subordinate, to a node path identification (NPID) of the at least one revoked leaf node at the layer 0; generating a tag list in the layer 0 by combining the NPID of each of the at least one revoked leaf nodes at the layer 0 in order of increment of node IDs of the corresponding at least one revoked leaf nodes; and generating a tag list in a lowest layer by repeatedly performing the setting and generation operation down to the lowest layer.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: February 14, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Weon-il Jin, Maeng-hee Sung, Dae-youb Kim, Hwan-joon Kim
  • Patent number: 9344429
    Abstract: A content protection method includes generating content protection information regarding a content to be protected by a content producer, and generating a content name indicating a location of the content in content name based networks based on the content protection information. The content protection information may include at least one of marking information indicating whether the content is protected and policy information indicating a disclosure range of the content.
    Type: Grant
    Filed: June 11, 2012
    Date of Patent: May 17, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Eun Ah Kim, Dae Youb Kim, Byoung-Joon Lee, Mi Suk Huh
  • Patent number: 9143527
    Abstract: A node apparatus and method are described to prevent overflow of a pending interest table (PIT) in a name based network system. The node apparatus and method increases a number of PITs to correspond to a number of interface units so that the PITs match the interface units, respectively, and stores a request message flowing in per interface unit in the matching PITs. In addition, when a capacity used at each of the PITs exceeds a threshold, the node apparatus and method transmits a traffic control message for traffic control through respectively matching interface units to prevent overflow of the PITs.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: September 22, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Dae Youb Kim
  • Patent number: 9100654
    Abstract: An apparatus and method for video watermarking are provided. The apparatus and method include receiving a bit stream encoded by a video encoder by a spatial domain information analyzer and extracting information from a spatial domain of an image with respect to code words forming the bit stream, grouping the code words for each segmented domain by a domain classifier based on the information from the spatial domain, determining a sign of the each segmented domain by a domain sign determiner and inserting a watermark in the each segmented domain according to the sign determined by the domain sign determiner by a watermark bit inserter.
    Type: Grant
    Filed: August 24, 2011
    Date of Patent: August 4, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hwan Joon Kim, Mi Suk Huh, Dae Youb Kim, Chee Sun Won, Sung Min Kim
  • Patent number: 9021266
    Abstract: Provided are methods and a validation system that includes a signature device and a verification device for verifying a content. The signature device may generate verification information for each segment of a divided content and may generate signature information to verify the integrity of each segment and whether a corresponding segment is a part of a content. When a segment is received, the verification device may verify integrity of the segment and whether the segment is a part of the content, based on the verification information and the signature value received from the signature device.
    Type: Grant
    Filed: October 6, 2011
    Date of Patent: April 28, 2015
    Assignee: Samsung Electronics., Ltd.
    Inventor: Dae Youb Kim
  • Publication number: 20150074417
    Abstract: An apparatus for generating a key for access control of content in a distributed environment network is provided. The apparatus includes a first key distributor configured to generate first encrypted keys by encrypting a first key corresponding to a key for write authorization using each public key of members having write authorization among members included in an access control list including information of at least one user and distribute the access control list and information about access authorization and the first encrypted keys to the members having write authorization, and a second key distributor configured to generate second encrypted keys by encrypting a second key corresponding to a key for read authorization using the first key using each public key of members having read authorization among members included in the access control list and distribute the access control list and second encrypted keys to the members having read authorization.
    Type: Application
    Filed: November 17, 2014
    Publication date: March 12, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Dae Youb KIM
  • Patent number: 8918635
    Abstract: An apparatus for generating a key for access control of content in a distributed environment network is provided. The apparatus includes a first key distributor configured to generate first encrypted keys by encrypting a first key corresponding to a key for write authorization using each public key of members having write authorization among members included in an access control list including information of at least one user and distribute the access control list and information about access authorization and the first encrypted keys to the members having write authorization, and a second key distributor configured to generate second encrypted keys by encrypting a second key corresponding to a key for read authorization using the first key using each public key of members having read authorization among members included in the access control list and distribute the access control list and second encrypted keys to the members having read authorization.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: December 23, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Dae Youb Kim
  • Patent number: 8897445
    Abstract: A combination-based broadcast encryption method includes: assigning by a server a base group of different combinations to each user; producing and sending secret information for each user by using as a base the base group allocated to each user; producing and sending an inverse-base parameter value through calculations with integers used to produce the base group and key value information of one or more privileged users; and deriving a group key by using the key value information of the privileged users, encrypting a session key by using the derived group key, and sending the encrypted session key to each user. Accordingly, each user is assigned a different base through a combination, thereby having security against collusion attacks.
    Type: Grant
    Filed: April 30, 2012
    Date of Patent: November 25, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Weon-il Jin, Dae-youb Kim, Hwan-joon Kim, Sung-joon Park
  • Patent number: 8874919
    Abstract: Provided is an apparatus and method of a portable terminal authenticating another portable terminal. The portable terminal may receive a seed generated by the other portable terminal, issue an authentication certificate generated using the seed to the other portable terminal, authenticate the other portable terminal based on the authentication certificate, and provide a secure communication.
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: October 28, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Dae Youb Kim
  • Patent number: 8826381
    Abstract: A node device and method are described to prevent overflow of a pending interest table (PIT). When excessive request messages are received through a particular interface, the node device and method transmits a traffic control message to control a transmission interval of the request messages, which are transmitted to a corresponding interface.
    Type: Grant
    Filed: June 6, 2012
    Date of Patent: September 2, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Dae Youb Kim
  • Publication number: 20140215611
    Abstract: An attack detection apparatus includes a window size change unit configured to change a size of a window to be applied to traffic, and an abnormal state detection unit configured to detect an abnormal state of the traffic to which the changed window is applied.
    Type: Application
    Filed: January 29, 2014
    Publication date: July 31, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Eun Ah KIM, Dae Youb KIM, Byoung Joon LEE
  • Patent number: 8755520
    Abstract: An apparatus and method for generating a key for a broadcast encryption. The apparatus includes a node secret generator for managing a user that receives broadcast data in a tree structure and for generating a unique node secret for each node in the tree structure. The apparatus also includes an instant key generator for temporarily generating an instant key used at all nodes in common in the tree structure, and a node key generator for generating a node key for each node by operating the node secret generated at the node secret generator and the instant key generated at the instant key generator. Thus, key update can be efficiently achieved.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: June 17, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hwan-joon Kim, Dae-youb Kim, Weon-il Jin, Sung-joon Park
  • Publication number: 20140149733
    Abstract: A system encrypts a name of content stored in a node of a hierarchical structure. A content receiving node encrypts a name of a predetermined node among names of nodes included in a content name, such as by using a hash function, and transmits the encrypted content name to receive the stored content. A relay node receives the content name including the encrypted name of the node and decrypts the encrypted name of the node, such as by using a reference table. The relay node uses the decrypted node name to relay the content request to the content storage node. Since the content name is encrypted, content routing may be performed without disclosing information associated with a hierarchical structure in which the content is stored.
    Type: Application
    Filed: November 13, 2013
    Publication date: May 29, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Dae Youb KIM
  • Patent number: RE45191
    Abstract: A user key management method for a broadcast encryption includes assigning node path identifiers (IDs) to nodes arranged in sequence; assigning random seed value keys to the nodes according to the node path IDs; generating key values by repeatedly applying a hash function to the assigned random seed value keys; and assigning the generated key values to the nodes in sequence. Accordingly, it is possible to reduce the transmission overhead that is most important matter in the broadcast encryption to less than the number of the revoked users. Further, there is an advantage that the transmission overhead of the exemplary embodiments of the present invention is remarkably reduced compared with the Subset Difference method.
    Type: Grant
    Filed: April 18, 2013
    Date of Patent: October 14, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Weon-il Jin, Dae-youb Kim, Hwan-joon Kim, Sung-joon Park, Jung-hee Cheon, Myung-hwan Kim, Nam-su Jho, Eun-sun Yoo
  • Patent number: RE45213
    Abstract: A user key management method for a broadcast encryption includes assigning node path identifiers (IDs) to nodes arranged in sequence; assigning random seed value keys to the nodes according to the node path IDs; generating key values by repeatedly applying a hash function to the assigned random seed value keys; and assigning the generated key values to the nodes in sequence. Accordingly, it is possible to reduce the transmission overhead that is most important matter in the broadcast encryption to less than the number of the revoked users. Further, there is an advantage that the transmission overhead of the exemplary embodiments of the present invention is remarkably reduced compared with the Subset Difference method.
    Type: Grant
    Filed: April 22, 2013
    Date of Patent: October 28, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Weon-il Jin, Dae-youb Kim, Hwan-joon Kim, Sung-joon Park, Jung-hee Cheon, Myung-hwan Kim, Nam-su Jho, Eun-sun Yoo