Patents by Inventor Chang-seok Oh

Chang-seok Oh 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: 11943987
    Abstract: A color conversion substrate and a display device are provided. The color conversion substrate includes a base substrate, a first color filter and a second color filter disposed on a surface of the base substrate, a first partition layer disposed between the first color filter and the second color filter, a second partition layer disposed on the first partition layer, a first wavelength conversion pattern disposed on the first color filter and a second wavelength conversion pattern disposed on the second color filter, wherein the first partition layer includes a first lower surface disposed on the first color filter and a second lower surface disposed on the second color filter.
    Type: Grant
    Filed: June 11, 2020
    Date of Patent: March 26, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Gak Seok Lee, Byung Chul Kim, In Ok Kim, Jae Min Seong, In Seok Song, Keun Chan Oh, Ji Eun Jang, Chang Soon Jang, Sun Kyu Joo, Ha Lim Ji
  • Patent number: 11930684
    Abstract: Provided is a display device. The display device includes a first base portion, a second base portion facing the first base portion, a light emitting layer disposed on one surface of the first base portion and emitting first light, a first wavelength conversion pattern disposed on the light emitting layer and converting the first light into second light having a different wavelength from the first light, a first color filter overlapping the first wavelength conversion pattern on one surface of the second base portion and spaced apart from the first wavelength conversion pattern, and an air layer interposed between the first wavelength conversion pattern and the first color filter.
    Type: Grant
    Filed: June 3, 2021
    Date of Patent: March 12, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chang Soon Jang, Keun Chan Oh, Gak Seok Lee, Sang Hun Lee, So Yun Lee, Ji Eun Jang
  • Publication number: 20240072553
    Abstract: An electronic device includes a connector including a pair of terminals connected to a power source, a voltage sensor provided to detect a voltage between the pair of terminals, a communication device provided to perform communication with an external control device through a network, and a controller configured to determine whether the connector is separated from the power source based on a voltage variation between the pair of terminals, control the communication device to request the external control device to cut off power of the power source when the connector is separated from the power source, and control to perform self-discharge.
    Type: Application
    Filed: May 3, 2023
    Publication date: February 29, 2024
    Inventors: Ji Wan Son, Taewoong Lim, Chan Woong Jo, Dong Seok Oh, Chang Hwan Kim
  • Patent number: 11099698
    Abstract: Disclosed is a touchscreen panel capable of achieving an enhancement in active pen touch performance while securing a desired finger touch performance. A touchscreen integrated display device using the touchscreen panel is also disclosed. The touchscreen panel includes first touch electrodes each extending in a first direction while having a bar shape, second touch electrodes insulated from the first touch electrodes, each second touch electrode extending in a second direction while having a bar shape, to overlap with the first touch electrodes at predetermined portions thereof, first wing patterns formed at opposite longitudinal sides of each first touch electrode in regions where the first touch electrode does not overlap with the second touch electrodes, respectively, and second wing patterns formed at opposite longitudinal sides of each second touch electrode in regions where the second touch electrode does not overlap with the first touch electrodes, respectively.
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: August 24, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Young-Gyu Moon, Chang-Seok Oh
  • Publication number: 20200201485
    Abstract: Disclosed is a touchscreen panel capable of achieving an enhancement in active pen touch performance while securing a desired finger touch performance. A touchscreen integrated display device using the touchscreen panel is also disclosed. The touchscreen panel includes first touch electrodes each extending in a first direction while having a bar shape, second touch electrodes insulated from the first touch electrodes, each second touch electrode extending in a second direction while having a bar shape, to overlap with the first touch electrodes at predetermined portions thereof, first wing patterns formed at opposite longitudinal sides of each first touch electrode in regions where the first touch electrode does not overlap with the second touch electrodes, respectively, and second wing patterns formed at opposite longitudinal sides of each second touch electrode in regions where the second touch electrode does not overlap with the first touch electrodes, respectively.
    Type: Application
    Filed: August 20, 2019
    Publication date: June 25, 2020
    Applicant: LG Display Co., Ltd.
    Inventors: Young-Gyu MOON, Chang-Seok OH
  • Patent number: 9524076
    Abstract: A web page management method and apparatus are provided in which a selection signal is received for a plurality of web pages, and identification information is received. The plurality of web pages are grouped and managed based on the identification information.
    Type: Grant
    Filed: May 25, 2011
    Date of Patent: December 20, 2016
    Assignee: Samsung Electronics Co., Ltd
    Inventor: Chang-seok Oh
  • Patent number: 9435017
    Abstract: A method of manufacturing a titanium alloy with high strength and high formability, the method including preparing a titanium alloy material and equipment for manufacturing the titanium alloy, manufacturing the titanium alloy having a lamellar structure (martensite structure) by cooling the prepared titanium alloy material with water after performing heat treatment at the beta transformation temperature or more, and rolling that makes ultrafine grains by finishing forming of the titanium alloy at a plastic instability temperature or less of an initial lamellar structure by gradually decreasing the forming temperature in accordance with an increase of a strain after starting the forming at the plastic instability temperature or more of an initial lamellar structure, under a condition of a low strain in which the strain is 2.5 or less, after the manufacturing of a titanium alloy having a lamellar structure.
    Type: Grant
    Filed: March 19, 2012
    Date of Patent: September 6, 2016
    Assignee: KOREA INSTITUTE OF MACHINERY & MATERIALS
    Inventors: Chan Hee Park, Chang Seok Oh, Jong Taek Yeom, Jae Keun Hong, Chong Soo Lee, Yong Taek Hyun
  • Patent number: 9378300
    Abstract: A method and apparatus for outputting data is provided. The method includes outputting a first web page containing streaming data, before the streaming data is completely reproduced, when a request to output a second web page is received, outputting the second web page while continuously receiving the streaming data, and when data of an amount that is appropriate to continuously reproduce the streaming data without data delay is received, announcing that the streaming data is capable of being reproduced.
    Type: Grant
    Filed: October 15, 2010
    Date of Patent: June 28, 2016
    Assignee: Samsung Electronics Co., Ltd
    Inventor: Chang-seok Oh
  • Publication number: 20140305554
    Abstract: A method of manufacturing a titanium alloy with high strength and high formability includes preparing a material and equipment for manufacturing a titanium alloy, manufacturing a titanium alloy having a lamellar structure (martensite structure) by cooling the prepared material with water after performing heat treatment at the beta transformation temperature or more, and rolling that makes ultrafine grains by finishing forming of the titanium alloy at a plastic instability temperature by gradually decreasing the forming temperature in accordance with an increase of a strain after starting the forming at the plastic instability temperature of more, under a condition of a low strain in which the strain is 2.5 or less, after the manufacturing of a titanium alloy having a lamellar structure.
    Type: Application
    Filed: March 19, 2012
    Publication date: October 16, 2014
    Applicant: KOREA INSTITUTE OF MACHINERY & MATERIALS
    Inventors: Chan Hee Park, Chang Seok Oh, Jong Taek Yeom, Jae Keun Hong, Chong Soo Lee, Yong Taek Hyun
  • Publication number: 20140165932
    Abstract: An engine cooling system for a vehicle includes a water pump disposed to supply an engine with a coolant and a radiator disposed to cool heated coolant of the engine by exchanging heat with outside air. The system may include: a control valve that is disposed at one side of the engine to control flow rate and flow passage of coolant; a first passage that connects the control valve with the radiator and connects the radiator with the water pump; a TOC that is disposed between an outlet of the radiator and the water pump to be connected through the first passage; a second passage that connects the TOC with the control valve and directly supplies the TOC with the coolant exhausted from the engine; and a heater that is disposed in a third passage that bypasses the engine to connect the control valve with the water pump.
    Type: Application
    Filed: March 20, 2013
    Publication date: June 19, 2014
    Applicant: Hyundai Motor Company
    Inventor: Chang-Seok Oh
  • Publication number: 20110296323
    Abstract: A web page management method and apparatus are provided in which a selection signal is received for a plurality of web pages, and identification information is received. The plurality of web pages are grouped and managed based on the identification information.
    Type: Application
    Filed: May 25, 2011
    Publication date: December 1, 2011
    Applicant: Samsung Electronics Co., Ltd.
    Inventor: Chang-seok OH
  • Publication number: 20110289110
    Abstract: A method of re-finding a web page in an apparatus capable of web browsing. The method includes storing data of a currently displayed web page as data of a re-search web page in the apparatus when a re-search web page designation signal is received and reading and loading the data of the re-search web page stored in the apparatus when a web page re-search request signal is received.
    Type: Application
    Filed: May 20, 2011
    Publication date: November 24, 2011
    Applicant: Samsung Electronics Co., Ltd.
    Inventor: Chang-seok OH
  • Patent number: 8036688
    Abstract: Disclosed are a method and a mobile communication system for sharing at least one schedule between the members of a group. A user can first register one or more groups and members of each group, which will receive a group schedule, and store schedules in relation to corresponding groups in a master terminal. Each group schedule is stored with an identifier representing a specific group and indicating that the schedule is related to the specific group. When the user selects a group which will receive a group schedule in a schedule transmission mode, the master terminal extracts only the schedules related to the group using the identifier of the selected group, and sends the extracted schedules to every member of the selected group at one time. With a single transmission, every member of the group can share the schedules common to the group members.
    Type: Grant
    Filed: August 3, 2007
    Date of Patent: October 11, 2011
    Assignee: Samsung Electronics Co., Ltd
    Inventor: Chang-Seok Oh
  • Publication number: 20110226391
    Abstract: A C+N austenitic stainless steel with high mechanical strength and excellent corrosion resistance and a fabrication method thereof are provided. The C+N austenitic stainless steel consists of: 8 to 12 wt. % manganese; 15 to 20 wt. % chromium; 2 wt. % or less nickel; 4 wt. % or less tungsten; 2 wt. % or less molybdenum; 0.6 to 1.0 wt. % of total C+N content; a balance of iron; and unavoidable impurities. The austenitic stainless steel fabricated provides mechanical properties of a tensile strength of 850 MPa or higher and an uniform elongation of 45% or higher, obtained through controlling the contents of the interstitial elements and those of the substitutional elements. The alloy also provides corrosion resistance and a biocompatibility due to the minimized content of nickel which causes allergic reaction to the human body. Therefore, the C+N austenitic stainless steel is applicable in the fabrication of a variety of functional components and structural fields.
    Type: Application
    Filed: August 20, 2009
    Publication date: September 22, 2011
    Applicant: KOREA INSTITUTE OF MACHINERY AND MATERIALS
    Inventors: Sung-Joon Kim, Tae-Ho Lee, Chang-Seok Oh, Heon-Young Ha
  • Patent number: 8014368
    Abstract: A service provider discovery method in a wireless network environment, includes receiving, by the gateway, a service request (SREQ) packet which is broadcast from a first mobile node in the ad-hoc network; updating and transmitting, by the gateway, the SREQ packet to a service repository which stores at least one service provider information, in the infrastructure network; transmitting, by the service repository, a service reply (SREP) packet containing information relating to a service provider which provides a service requested by the SREQ packet to the gateway, and updating and transmitting, by the gateway, the SREP packet to the first mobile node. Accordingly, the service can be used in association with the ad-hoc network and the infrastructure network.
    Type: Grant
    Filed: January 19, 2006
    Date of Patent: September 6, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae-hoon Kim, Kyung-lim Kang, Jung-ho Kim, Yong-sung Roh, Singh Shubhranshu, Young-gon Choi, Chang-seok Oh, Sung-hee Lee
  • Publication number: 20110090165
    Abstract: Disclosed is an interface method including detecting a contact on a display unit on which a first screen is output; determining whether a plurality of selectable objects exist within a first threshold distance from a point where the contact is detected; and outputting a second screen, in which at least one of the plurality of selectable objects are rearranged to provide distances between the plurality of selectable objects greater than or equal to a second threshold distance, on the display unit.
    Type: Application
    Filed: October 15, 2010
    Publication date: April 21, 2011
    Applicant: Samsung Electronics Co., Ltd.
    Inventor: Chang-seok OH
  • Publication number: 20110093606
    Abstract: A method and apparatus for outputting data is provided. The method includes outputting a first web page containing streaming data, before the streaming data is completely reproduced, when a request to output a second web page is received, outputting the second web page while continuously receiving the streaming data, and when data of an amount that is appropriate to continuously reproduce the streaming data without data delay is received, announcing that the streaming data is capable of being reproduced.
    Type: Application
    Filed: October 15, 2010
    Publication date: April 21, 2011
    Applicant: Samsung Electronics Co., Ltd.
    Inventor: Chang-Seok OH
  • Patent number: 7573858
    Abstract: A wireless ad-hoc network for transmitting packets to target regions, and a packet transmission method thereof, are provided. The ad-hoc network includes at least one relay node for receiving a packet containing location information of at least two target regions each including at least one node, separating the received packet by the location information, forming a new packet for each instance of the location information separated from the received packet, and forwarding the new packets to corresponding target regions; and a source node for generating the packet containing the location information and transmitting the packet to the relay node. The present invention can reduce the packet transmission overhead, the packet transmission delay, and the power required for the packet transmission. Therefore, the packets can be delivered to the target regions in an efficient manner.
    Type: Grant
    Filed: December 27, 2005
    Date of Patent: August 11, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yong-sung Roh, Young-gon Choi, Jung-ho Kim, Jae-hoon Kim, Kyung-lim Kang, Shubhranshu Singh, Chang-seok Oh, Sung-hee Lee
  • Patent number: 7457304
    Abstract: A method for a hybrid service discovery adapting between push-based and pull-based schemes in a mobile ad-hoc network and a system thereof. The method includes periodically transmitting a first control packet for providing service information from a service provider that is capable of providing a service to nodes located in a specified advertisement zone, transmitting a second control packet requesting the service from a service demander to one or more nodes in a network, and transmitting a third control packet including path information of the service provider if at least one of the nodes located within the advertisement zone and the service provider receives the second control packet. The method and the system can reduce the amount of control packet transmission and minimize an end-to-end delay.
    Type: Grant
    Filed: May 10, 2005
    Date of Patent: November 25, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yong-sung Roh, Jae-hoon Kim, Kyung-lim Kang, Young-bae Ko, Shubhranshu Singh, Young-gon Choi, Chang-seok Oh, Jung-ho Kim
  • Publication number: 20080039123
    Abstract: Disclosed are a method and a mobile communication system for sharing at least one schedule between the members of a group. A user can first register one or more groups and members of each group, which will receive a group schedule, and store schedules in relation to corresponding groups in a master terminal. Each group schedule is stored with an identifier representing a specific group and indicating that the schedule is related to the specific group. When the user selects a group which will receive a group schedule in a schedule transmission mode, the master terminal extracts only the schedules related to the group using the identifier of the selected group, and sends the extracted schedules to every member of the selected group at one time. With a single transmission, every member of the group can share the schedules common to the group members.
    Type: Application
    Filed: August 3, 2007
    Publication date: February 14, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Chang-Seok OH