Patents by Inventor Jongill Hong

Jongill Hong 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: 20230403865
    Abstract: Disclosed are a spin logic device based on spin-charge conversion and a spin logic array using the same. A reconfigurable spin logic array according to an exemplary embodiment of the present invention may include: an input terminal receiving at least three current signals; a plurality of wires transmitting the current signal in connection with the input terminal and including a horizontal wire and a vertical wire which cross each other; a first gate array in which at least one first majority gate connected to the input terminal through the wires and implemented based on the spin logic device is arranged; and a second gate array in which at least one second majority gate connected to the first gate array through the wires and implemented based on the spin logic device is arranged.
    Type: Application
    Filed: August 24, 2023
    Publication date: December 14, 2023
    Inventors: Jongill HONG, Saeroonter OH
  • Patent number: 11785783
    Abstract: Disclosed are a spin logic device based on spin-charge conversion and a spin logic array using the same. A reconfigurable spin logic array according to an exemplary embodiment of the present invention may include: an input terminal receiving at least three current signals; a plurality of wires transmitting the current signal in connection with the input terminal and including a horizontal wire and a vertical wire which cross each other; a first gate array in which at least one first majority gate connected to the input terminal through the wires and implemented based on the spin logic device is arranged; and a second gate array in which at least one second majority gate connected to the first gate array through the wires and implemented based on the spin logic device is arranged.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: October 10, 2023
    Assignees: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY, INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY ERICA CAMPUS
    Inventors: Jongill Hong, Saeroonter Oh
  • Publication number: 20220131069
    Abstract: Disclosed art a magnetic tunnel junction device, a magnetic memory using the same, and a method for manufacturing the same. The method for manufacturing the magnetic tunnel junction device may include the steps of a lamination step of forming an initial multilayer structure including at least one metallic oxide layer and a metallic layer on a substrate; a heat treatment step of heat-treating the initial multilayer structure; and a device forming step of forming a magnetic tunnel junction device of a final multilayer structure in which at least one metallic oxide layer and the metallic layer are converted to at least one ferromagnetic material layer and the oxide layer by heat treatment.
    Type: Application
    Filed: October 25, 2021
    Publication date: April 28, 2022
    Inventor: Jongill HONG
  • Publication number: 20200365652
    Abstract: Disclosed are a spin logic device based on spin-charge conversion and a spin logic array using the same. A reconfigurable spin logic array according to an exemplary embodiment of the present invention may include: an input terminal receiving at least three current signals; a plurality of wires transmitting the current signal in connection with the input terminal and including a horizontal wire and a vertical wire which cross each other; a first gate array in which at least one first majority gate connected to the input terminal through the wires and implemented based on the spin logic device is arranged; and a second gate array in which at least one second majority gate connected to the first gate array through the wires and implemented based on the spin logic device is arranged.
    Type: Application
    Filed: May 15, 2020
    Publication date: November 19, 2020
    Inventors: Jongill HONG, Saeroonter OH
  • Patent number: 10522748
    Abstract: The present invention relates to a magnetic device including a spin-current pattern generating a spin current perpendicular to a main plane of the spin-current pattern by an in-plane current, and a free magnetic layer disposed in contact with the spin-current pattern and having a perpendicular magnetic anisotropy magnetically switchable by the spin current.
    Type: Grant
    Filed: August 29, 2018
    Date of Patent: December 31, 2019
    Assignee: UNIVERSITY-INDUSTRY FOUNDATION (UIF), YONSEI UNIVERSITY
    Inventor: Jongill Hong
  • Publication number: 20190103553
    Abstract: The present invention relates to a magnetic device including a spin-current pattern generating a spin current perpendicular to a main plane of the spin-current pattern by an in-plane current, and a free magnetic layer disposed in contact with the spin-current pattern and having a perpendicular magnetic anisotropy magnetically switchable by the spin current.
    Type: Application
    Filed: August 29, 2018
    Publication date: April 4, 2019
    Inventor: Jongill Hong
  • Patent number: 10164172
    Abstract: Provided are a multi-layered magnetic thin film stack, a magnetic tunneling junction, and a data storage device. The multi-layered magnetic thin film stack includes a FePd alloy layer including an alloy of iron (Fe) and palladium (Pd); a tunneling barrier layer, which includes MgO and is disposed on the FePd alloy layer; and a Heusler alloy layer disposed between the FePd alloy layer and the tunneling barrier layer, wherein the FePd alloy layer and the Heusler alloy layer constitute a hybrid magnetic layer.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: December 25, 2018
    Assignees: SK HYNIX INC., INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY
    Inventors: Jongill Hong, Taejin Bae, Sung Joon Yoon
  • Publication number: 20170294574
    Abstract: Provided are a multi-layered magnetic thin film stack, a magnetic tunneling junction, and a data storage device. The multi-layered magnetic thin film stack includes a FePd alloy layer including an alloy of iron (Fe) and palladium (Pd); a tunneling barrier layer, which includes MgO and is disposed on the FePd alloy layer; and a Heusler alloy layer disposed between the FePd alloy layer and the tunneling barrier layer, wherein the FePd alloy layer and the Heusler alloy layer constitute a hybrid magnetic layer.
    Type: Application
    Filed: April 12, 2017
    Publication date: October 12, 2017
    Inventors: Jongill HONG, Taejin BAE, Sung Joon YOON
  • Patent number: 9315389
    Abstract: The present invention relates to hydrogen surface-treated graphene, a formation method thereof, and an electronic device including the same. The graphene according to one exemplary embodiment of the present invention can be useful in preparing hydrogen surface-treated graphene having a band gap using simple methods through indirect hydrogen plasma treatment. Also, the graphene according to one exemplary embodiment of the present invention can be useful in forming two regions having different band gaps through the indirect hydrogen plasma treatment, and thus can be useful in reducing the processing time and the processing cost since the graphene is directly applicable to electronic devices such as transistors, and touch panels.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: April 19, 2016
    Assignee: University-Industry Foundation, Yonsei University
    Inventors: Jongill Hong, Jangyup Son
  • Publication number: 20150110706
    Abstract: The present invention relates to hydrogen surface-treated graphene, a formation method thereof, and an electronic device including the same. The graphene according to one exemplary embodiment of the present invention can be useful in preparing hydrogen surface-treated graphene having a band gap using simple methods through indirect hydrogen plasma treatment. Also, the graphene according to one exemplary embodiment of the present invention can be useful in forming two regions having different band gaps through the indirect hydrogen plasma treatment, and thus can be useful in reducing the processing time and the processing cost since the graphene is directly applicable to electronic devices such as transistors, and touch panels.
    Type: Application
    Filed: October 17, 2014
    Publication date: April 23, 2015
    Inventors: Jongill Hong, Jangyup Son
  • Patent number: 8504148
    Abstract: Provided is a neural device including at least one nano-wire. The neural device includes a nano-wire formed on a base formed on a first surface of a substrate, and an electrode pad formed on a second surface different from the first surface of the substrate and configured to output an electrical signal gained from a neural fiber through the nano-wire or apply a signal for an electric stimulus to the nano-wire. Therefore, it is possible to prevent the nano-wire from becoming embedded in an encapsulation and maximize a contact between the nano-wire and a nerve.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: August 6, 2013
    Assignees: Industry-Academic Cooperation Foundation, Yonsei University, I3SYSTEM, Inc.
    Inventors: Donghyun Kim, Jongill Hong, Gunhee Han, Taewook Kim, Heonjin Choi, Seunghan Park, Seongyeol Pyo, Sooho Bae, Han Chung
  • Publication number: 20120130459
    Abstract: Provided is a neural device including at least one nano-wire. The neural device includes a nano-wire formed on a base formed on a first surface of a substrate, and an electrode pad formed on a second surface different from the first surface of the substrate and configured to output an electrical signal gained from a neural fiber through the nano-wire or apply a signal for an electric stimulus to the nano-wire. Therefore, it is possible to prevent the nano-wire from becoming embedded in an encapsulation and maximize a contact between the nano-wire and a nerve.
    Type: Application
    Filed: October 8, 2010
    Publication date: May 24, 2012
    Applicants: I3SYSTEM, Inc., Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Donghyun Kim, Jongill Hong, Gunhee Han, Taewook Kim, Heonjin Choi, Seunghan Park, Seongyeol Pyo, Sooho Bae, Han Chung
  • Publication number: 20100270710
    Abstract: The present invention relates to a method for fabricating a magnetic pattern and a method for manufacturing a patterned media through fabrication of the magnetic pattern. The method for fabricating the magnetic pattern according to an embodiment of the present invention comprises the steps of (a) coating a pattern forming layer for fabricating a magnetic pattern on a substrate; (b) forming a mask layer that has a designed opening pattern with a nano imprinting process using a stamp that has a nanostructure pattern on the pattern forming layer; and (c) converting an area of the pattern forming layer that corresponds to the predetermined opening pattern into a magnetic area by irradiating a predetermined hydrogen ion beam onto the mask layer.
    Type: Application
    Filed: December 22, 2008
    Publication date: October 28, 2010
    Applicant: Industry-Academic Cooperation Foundation Yonsei University
    Inventors: Shinill Kang, Jongill Hong
  • Publication number: 20080231999
    Abstract: A tunneling magnetoresistive device and a magnetic head including the tunneling magnetoresistive device are provided. The tunneling magnetoresistive device includes a pinned layer and a free layer formed on either side of a tunneling barrier layer, wherein the tunneling barrier layer includes Te—O.
    Type: Application
    Filed: December 7, 2007
    Publication date: September 25, 2008
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Eun-sik Kim, Kook-hyun Sunwoo, Jongill Hong, In-jun Hwang, Hyoung-joon Choi
  • Patent number: 7087324
    Abstract: A magnetoresistive spin-valve sensor is constructed to include a magnetic layer, a specular layer made of a metal oxide, a back layer made of Au, Cu, AuCu, AgCu, AuAgCu or an alloy thereof and interposed between the magnetic layer and the specular layer, and a metal layer disposed adjacent to the specular layer, opposite to the back layer, and made of a metal which improves GMR performance of the magnetoresistive spin-valve sensor.
    Type: Grant
    Filed: September 16, 2003
    Date of Patent: August 8, 2006
    Assignee: Fujitsu Limited
    Inventors: Jongill Hong, Hitoshi Kanai, Junichi Kane, Kenji Noma
  • Publication number: 20050276996
    Abstract: A magnetoresistive spin-valve sensor is constructed to include a magnetic layer, a specular layer made of a metal oxide, a back layer made of Au, Cu, AuCu, AgCu, AuAgCu or an alloy thereof and interposed between the magnetic layer and the specular layer, and a metal layer disposed adjacent to the specular layer, opposite to the back layer, and made of a metal which improves GMR performance of the magnetoresistive spin-valve sensor.
    Type: Application
    Filed: September 16, 2003
    Publication date: December 15, 2005
    Inventors: Jongill Hong, Hitoshi Kanai, Junichi Kane, Kenji Noma
  • Publication number: 20050052793
    Abstract: A magnetoresistive spin-valve sensor includes a first layer made of a magnetic material, a second layer made of a magnetic or nonmagnetic material and disposed on the first layer, and a third layer made of a magnetic material and disposed on the second layer, where the first, second and third layers form a free layer having a multi-layer structure.
    Type: Application
    Filed: August 20, 2004
    Publication date: March 10, 2005
    Inventors: Jongill Hong, Hitoshi Kanai
  • Publication number: 20020054463
    Abstract: A spin-valve magneto-resistive element is provided with a free magnetic layer having a first surface and a second surface opposite to the first surface, a first stacked structure including a first nonmagnetic metal layer, a first pinned magnetic layer and a first antiferromagnetic layer which are successively stacked on the first surface of the free magnetic layer, and a second stacked structure including a second nonmagnetic metal layer, a second pinned magnetic layer and a second antiferromagnetic layer which are successively stacked on the second surface of the free magnetic layer. A direction of an exchange coupled field between the first pinned magnetic layer and the free magnetic layer and a direction of an exchange coupled field between the second pinned magnetic layer and the free magnetic layer are antiparallel.
    Type: Application
    Filed: March 15, 2001
    Publication date: May 9, 2002
    Applicant: FUJITSU LIMITED
    Inventors: Naoki Mukoyama, Kenji Noma, Jongill Hong, Junichi Kane