Patents by Inventor Sun-ae Seo

Sun-ae Seo 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: 8667089
    Abstract: Provided are an apparatus and method for executing an application. Using the apparatus and method, an application is executed in a terminal directly, or by receiving a computing service from a remote server. After an execution time and/or power consumption of when the application is executed in the terminal directly, and an execution time and/or power consumption when the computing service is received from the remote server are estimated, one of the application execution methods of the two cases may be selected according to the estimated values. The estimated values may be determined based on a state of the terminal, the quality of service (QoS) state of the remote server, and a characteristic of the application.
    Type: Grant
    Filed: July 29, 2010
    Date of Patent: March 4, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dae-Hyun Cho, Sung-Do Moon, Byung-Chang Cha, Sun-Ae Seo
  • Publication number: 20140021445
    Abstract: The graphene electronic device may include a gate oxide on a conductive substrate, the conductive substrate configured to function as a gate electrode, a pair of first metals on the gate oxide, the pair of the first metals separate from each other, a graphene channel layer extending between the first metals and on the first metals, and a source electrode and a drain electrode on both edges of the graphene channel layer.
    Type: Application
    Filed: September 24, 2013
    Publication date: January 23, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jin-seong HEO, Hyun-jong CHUNG, Sun-ae SEO, Sung-hoon LEE, Hee-jun YANG
  • Patent number: 8614014
    Abstract: A magnetic memory device includes a track in which different non-magnetic layers are respectively formed on upper and lower surfaces of a magnetic layer. One of the two non-magnetic layers includes an element having an atomic number greater than or equal to 12. Accordingly, the magnetic layer has a relatively high non-adiabaticity (?).
    Type: Grant
    Filed: April 6, 2010
    Date of Patent: December 24, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung-chul Lee, Sun-ae Seo, Young-jin Cho, Ung-hwan Pi, Jin-seong Heo, Ji-young Bae
  • Patent number: 8607204
    Abstract: A method of analyzing single thread access by a variable of a multi-threaded program is provided. The method includes computing a thread identifier of a thread to be executed in a node of the multi-thread program; computing multiple threads configured to concurrently execute the node; and computing thread accessibility by deducing one or more variables that are executed in a single thread of the program from one or more pairs of the computed threads that concurrently execute the node.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: December 10, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sun-Ae Seo, Sung-Do Moon
  • Publication number: 20130313512
    Abstract: A graphene electronic device and a method of fabricating the graphene electronic device are provided. The graphene electronic device may include a graphene channel layer formed on a hydrophobic polymer layer, and a passivation layer formed on the graphene channel layer. The hydrophobic polymer layer may prevent or reduce adsorption of impurities to transferred graphene, and a passivation layer may also prevent or reduce adsorption of impurities to a heat-treated graphene channel layer.
    Type: Application
    Filed: August 2, 2013
    Publication date: November 28, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hee-jun YANG, Sun-ae SEO, Sung-hoon LEE, Hyun-jong CHUNG, Jin-seong HEO
  • Patent number: 8592799
    Abstract: A graphene electronic device and a method of fabricating the graphene electronic device are provided. The graphene electronic device may include a graphene channel layer formed on a hydrophobic polymer layer, and a passivation layer formed on the graphene channel layer. The hydrophobic polymer layer may prevent or reduce adsorption of impurities to transferred graphene, and a passivation layer may also prevent or reduce adsorption of impurities to a heat-treated graphene channel layer.
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: November 26, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hee-jun Yang, Sun-ae Seo, Sung-hoon Lee, Hyun-jong Chung, Jin-seong Heo
  • Patent number: 8575665
    Abstract: The graphene electronic device may include a gate oxide on a conductive substrate, the conductive substrate configured to function as a gate electrode, a pair of first metals on the gate oxide, the pair of the first metals separate from each other, a graphene channel layer extending between the first metals and on the first metals, and a source electrode and a drain electrode on both edges of the graphene channel layer.
    Type: Grant
    Filed: September 2, 2011
    Date of Patent: November 5, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin-seong Heo, Hyun-jong Chung, Sun-ae Seo, Sung-hoon Lee, Hee-jun Yang
  • Patent number: 8574730
    Abstract: Information storage devices and methods of manufacturing the same are provided. A magnetic track of the information storage device includes a magnetic layer in which at least one magnetic domain forming region and at least one magnetic domain wall forming region are alternately disposed in a lengthwise direction. The at least one magnetic domain forming regions has a different magnetic anisotropic energy relative to the at least one magnetic domain wall forming region. An intermediate layer is formed under the magnetic layer. The intermediate layer includes at least one first material region and at least one second material region. Each of the at least one first material regions and the at least one second material regions corresponds to one of the at least one magnetic domain forming regions and the at least one magnetic domain wall forming regions.
    Type: Grant
    Filed: June 11, 2008
    Date of Patent: November 5, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-jin Cho, Sung-chul Lee, Kwang-seok Kim, Ji-young Bae, Sun-ae Seo, Chang-won Lee
  • Publication number: 20130252395
    Abstract: Example embodiments relate to a resistive random access memory (RRAM) and a method of manufacturing the RRAM. A RRAM according to example embodiments may include a lower electrode, which may be formed on a lower structure (e.g., substrate). A resistive layer may be formed on the lower electrode, wherein the resistive layer may include a transition metal dopant. An upper electrode may be formed on the resistive layer. Accordingly, the transition metal dopant may form a filament in the resistive layer that operates as a current path.
    Type: Application
    Filed: May 13, 2013
    Publication date: September 26, 2013
    Inventors: Sun-ae SEO, Young-soo PARK, Ran-Ju JUNG, Myoung-jae LEE, Dong-chul KIM, Seung-eon AHN
  • Patent number: 8537506
    Abstract: An information storage device includes a magnetic track and a magnetic domain wall moving unit. The magnetic track has a plurality of magnetic domains and a magnetic domain wall between each pair of adjacent magnetic domains. The magnetic domain wall moving unit is configured to move at least the magnetic domain wall. The information storage device further includes a magneto-resistive device configured to read information recorded on the magnetic track. The magneto-resistive device includes a pinned layer, a free layer and a separation layer arranged there between. The pinned layer has a fixed magnetization direction. The free layer is disposed between the pinned layer and the magnetic track, and has a magnetization easy axis, which is non-parallel to the magnetization direction of the pinned layer.
    Type: Grant
    Filed: June 22, 2010
    Date of Patent: September 17, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ji-young Bae, Sung-chul Lee, Sun-ae Seo, Young-jin Cho, Ung-hwan Pi, Jin-seong Heo
  • Patent number: 8525601
    Abstract: An oscillator generates a signal using precession of a magnetic moment of a magnetic domain wall. The oscillator includes a free layer having the magnetic domain wall and a fixed layer corresponding to the magnetic domain wall. A non-magnetic separation layer is interposed between the free layer and the fixed layer.
    Type: Grant
    Filed: December 29, 2009
    Date of Patent: September 3, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung-chul Lee, Mathias Klaui, Sun-ae Seo, Young-jin Cho, Ung-hwan Pi, Ji-young Bae, Jin-seong Heo
  • Patent number: 8513653
    Abstract: An electronic device, a transparent display and methods for fabricating the same are provided, the electronic device including a first, a second and a third element each formed of a two-dimensional (2D) sheet material. The first, second, and third elements are stacked in a sequential order or in a reverse order. The second element is positioned between the first element and the third element. The second element has an insulator property, the first and third elements have a metal property or a semiconductor property.
    Type: Grant
    Filed: September 7, 2010
    Date of Patent: August 20, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yun-sung Woo, Sun-ae Seo, Dong-chul Kim, Hyun-jong Chung
  • Patent number: 8487356
    Abstract: The graphene device may include an upper oxide layer on at least one embedded gate, and a graphene channel and a plurality of electrodes on the upper oxide layer. The at least one embedded gate may be formed on the substrate. The graphene channel may be formed on the plurality of electrodes, or the plurality of electrodes may be formed on the graphene channel.
    Type: Grant
    Filed: November 30, 2011
    Date of Patent: July 16, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin seong Heo, Sun-ae Seo, Dong-chul Kim, Yun-sung Woo, Hyun-jong Chung
  • Patent number: 8476994
    Abstract: Provided is an electromechanical switch and a method of manufacturing the same. The electromechanical switch includes an elastic conductive layer that moves by the application of an electric field, wherein the elastic conductive layer includes at least one layer of graphene.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: July 2, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong-chul Kim, Ran-ju Jung, Sun-ae Seo, Chang-won Lee, Hyun-jong Chung
  • Patent number: 8466461
    Abstract: Example embodiments relate to a resistive random access memory (RRAM) and a method of manufacturing the RRAM. A RRAM according to example embodiments may include a lower electrode, which may be formed on a lower structure (e.g., substrate). A resistive layer may be formed on the lower electrode, wherein the resistive layer may include a transition metal dopant. An upper electrode may be formed on the resistive layer. Accordingly, the transition metal dopant may form a filament in the resistive layer that operates as a current path.
    Type: Grant
    Filed: November 28, 2007
    Date of Patent: June 18, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sun-ae Seo, Young-soo Park, Ran-ju Jung, Myoung-jae Lee, Dong-chul Kim, Seung-eon Ahn
  • Patent number: 8427247
    Abstract: An oscillator includes: a plurality of free layers and a non-magnetic layer disposed between the plurality of free layers. Each of the plurality of free layers has perpendicular magnetic anisotropy or in-plane magnetic anisotropy. Magnetization directions of the free layers are periodically switched such that a signal within a given frequency band oscillates.
    Type: Grant
    Filed: June 22, 2010
    Date of Patent: April 23, 2013
    Assignee: Samsung Electronics Co, Ltd.
    Inventors: Sung-chul Lee, Sun-ae Seo, Young-jin Cho, Ung-hwan Pi, Kwang-seok Kim, Ji-young Bae
  • Patent number: 8427246
    Abstract: Oscillators and methods of manufacturing and operating the same are provided, the oscillators include a pinned layer, a free layer and a barrier layer having at least one filament between the pinned layer and the free layer. The pinned layer may have a fixed magnetization direction. The free layer corresponding to the pinned layer. The at least one filament in the barrier layer may be formed by applying a voltage between the pinned layer and the free layer. The oscillators may be operated by inducing precession of a magnetic moment of at least one region of the free layer that corresponds to the at least one filament, and detecting a resistance change of the oscillator due to the precession.
    Type: Grant
    Filed: February 25, 2011
    Date of Patent: April 23, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung-chul Lee, Sun-ae Seo, Ung-hwan Pi, Kee-won Kim, Kwang-seok Kim
  • Patent number: 8421131
    Abstract: A graphene electronic device may include a silicon substrate, connecting lines on the silicon substrate, a first electrode and a second electrode on the silicon substrate, and an interlayer dielectric on the silicon substrate. The interlayer dielectric may be configured to cover the connecting lines and the first and second electrodes and the interlayer dielectric may be further configured to expose at least a portion of the first and second electrodes. The graphene electronic device may further include an insulating layer on the interlayer dielectric and a graphene layer on the insulating layer, the graphene layer having a first end and a second end. The first end of the graphene layer may be connected to the first electrode and the second end of the graphene layer may be connected to the second electrode.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: April 16, 2013
    Assignees: Samsung Electronics Co., Ltd., SNU R&DB Foundation
    Inventors: Hyun-jong Chung, Seung-jae Baek, Sun-ae Seo, Yun-sung Woo, Jin-seong Heo, David Seo
  • Patent number: 8421545
    Abstract: Oscillators and methods of operating the same, the oscillators include a pinned layer having a fixed magnetization direction, a first free layer over the pinned layer, and a second free layer over the first free layer. The oscillators are configured to generate a signal using precession of a magnetic moment of at least one of the first and second free layers.
    Type: Grant
    Filed: May 3, 2011
    Date of Patent: April 16, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kwang-seok Kim, Sung-chul Lee, Kee-won Kim, Sun-ae Seo, Ung-hwan Pi
  • Patent number: 8411498
    Abstract: Perpendicular magnetic tunnel junction (MTJ) devices, methods of fabricating a perpendicular MTJ device, electronic devices including a perpendicular MTJ device and methods of fabricating the electronic device are provided, the perpendicular MTJ devices include a pinned layer, a tunneling layer and a free layer. At least one of the pinned layer and the free layer includes a multi-layered structure including an amorphous perpendicular magnetic anisotropy (PMA) material.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: April 2, 2013
    Assignees: Samsung Electronics Co., Ltd., Gwangju Institute of Science and Technology
    Inventors: Kwang-seok Kim, Kee-won Kim, Sun-ae Seo, Seung-kyo Lee, Young-man Jang