Patents by Inventor Hyeon Jin Shin

Hyeon Jin Shin 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: 20120282489
    Abstract: A method of preparing crystalline graphene includes performing a first thermal treatment including supplying heat to an inorganic substrate in a reactor, introducing a vapor carbon supply source into the reactor during the first thermal treatment to form activated carbon, and binding of the activated carbon on the inorganic substrate to grow the crystalline graphene.
    Type: Application
    Filed: May 7, 2012
    Publication date: November 8, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyeon-jin SHIN, Jae-young CHOI, Yun-sung WOO, Seon-mi YOON
  • Patent number: 8304067
    Abstract: A method of fabricating a liquid film is provided. The method comprises the steps of applying hydrophilic liquid onto a substrate with an electrode formed thereunder, covering the hydrophilic liquid with a protection film comprising hydrophobic liquid, dispersing surfactant for reducing the surface tension between the hydrophilic liquid and the protection film, and applying voltage to the hydrophilic liquid and the electrode to wet the substrate with the hydrophilic liquid. With the surfactant and the electro-wetting principle, a contact angle between the hydrophilic liquid and the substrate is controlled. The liquid film having a uniform thickness in nano size is thus formed on the substrate. The protection film prevents the evaporation of the liquid film in the air to thereby secure the stability of the liquid film.
    Type: Grant
    Filed: February 28, 2008
    Date of Patent: November 6, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyeon Jin Shin, Jaeyoung Choi, Seonmi Yoon, Byung Do Oh, JaiYong Han
  • Publication number: 20120267041
    Abstract: A method of forming a multi-layer graphene includes forming a stack of a graphitizing metal catalyst layer and graphene by repeatedly performing a cycle of first forming the graphitizing metal catalyst layer on a substrate, and then forming the graphene on the graphitizing metal catalyst layer, and removing the graphitizing metal catalyst layer.
    Type: Application
    Filed: April 20, 2012
    Publication date: October 25, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yun-sung Woo, Jae-young Choi, Won-mook Choi, Hyeon-jin Shin, Seon-mi Yoon
  • Publication number: 20120248401
    Abstract: A three-dimensional graphene structure, and methods of manufacturing and transferring the same including forming at least one layer of graphene having a periodically repeated three-dimensional shape. The three-dimensional graphene structure is formed by forming a pattern having a three-dimensional shape on a surface of a substrate, and forming the three-dimensional graphene structure having the three-dimensional shape of the pattern by growing graphene on the substrate on which the pattern is formed. The three-dimensional graphene structure is transferred by injecting a gas between the three-dimensional graphene structure and the substrate, separating the three-dimensional graphene structure from the substrate by bonding the three-dimensional graphene structure to an adhesive support, combining the three-dimensional graphene structure with an insulating substrate, and removing the adhesive support.
    Type: Application
    Filed: April 2, 2012
    Publication date: October 4, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyeon-jin Shin, Jae-young Choi, Ji-hoon Park, Joung-real Ahn
  • Patent number: 8277685
    Abstract: Disclosed is a dispersant having a multifunctional head, and a phosphor paste composition comprising the dispersant. The dispersant has a multifunctional head that comprises an acidic group, a basic group and an aromatic group, thereby enhancing an affinity for the surface of phosphor particles and improving dispersibility.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: October 2, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seon Mi Yoon, Hyeon Jin Shin, Jae Young Choi, Seong Jae Choi, Bum Jae Lee, Ungyu Paik, Sangkyu Lee, Jung Hwan Lee
  • Patent number: 8269123
    Abstract: Disclosed herein is an image display device having a plurality of light emitting diodes (LEDs), which can maintain a primary color which is desired to be expressed, and prevent an interference of other unwanted colors and a change of the primary color at the time of application of a light source of each light emitting diode. The image display device comprises: a first optical filter layer containing a violet wavelength-absorbing material having a wavelength range of from 380 nm to 450 nm such as Bi2O3 so as to prevent light having a wavelength ranging from 380 nm to 450 nm from being leaked out to an undesired region of an image display portion of the image display device; and a second optical filter layer such as a blue color filter layer so as to allow a white light to be expressed in a desired region of the image display portion.
    Type: Grant
    Filed: July 26, 2011
    Date of Patent: September 18, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyeon Jin Shin, Jae Young Choi, Dong Kee Yi, Seong Jae Choi, Seonmi Yoon
  • Publication number: 20120228557
    Abstract: A compound containing at least two pyridinium derivatives in its molecular structure and being in a reduced form thereof may be used as a CNT n-doping material. The compound may donate electrons spontaneously to CNTs to n-dope the CNTs, while being oxidized into its stable state. An n-doped CNT that is doped with the CNT n-doping material may maintain a stable n-doped state for a long time without being dedoped even in the air and/or water. Further, the n-doped state may be easily controlled when using the CNT n-doping material.
    Type: Application
    Filed: May 18, 2012
    Publication date: September 13, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyeon Jin SHIN, Young HEE LEE, Jaeyoung CHOI, Seonmi YOON, Soo Min KIM
  • Publication number: 20120193667
    Abstract: Disclosed herein is a method for controlling the fluidity of a phosphor, a phosphor and a phosphor paste, the method comprising the steps of: treating the surface of a phosphor with a silane compound comprising a double bond; and polymerizing the monomer on the surface of the phosphor to form a polymer membrane thereon. The phosphor having the polymer membrane formed thereon exhibits significantly stabilized fluidity within a polymer encapsulant.
    Type: Application
    Filed: April 4, 2012
    Publication date: August 2, 2012
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Seong Jae CHOI, Dong Kee YI, Seon Mi YOON, Hyeon Jin SHIN, Jae Young CHOI
  • Patent number: 8221715
    Abstract: A compound containing at least two pyridinium derivatives in its molecular structure and being in a reduced form thereof may be used as a CNT n-doping material. The compound may donate electrons spontaneously to CNTs to n-dope the CNTs, while being oxidized into its stable state. An n-doped CNT that is doped with the CNT n-doping material may maintain a stable n-doped state for a long time without being dedoped even in the air and/or water. Further, the n-doped state may be easily controlled when using the CNT n-doping material.
    Type: Grant
    Filed: May 7, 2009
    Date of Patent: July 17, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyeon Jin Shin, Young Hee Lee, Jaeyoung Choi, Seonmi Yoon, Soo Min Kim
  • Publication number: 20120141666
    Abstract: Disclosed is a transparent carbon nanotube (CNT) electrode using a conductive dispersant. The transparent CNT electrode comprises a transparent substrate and a CNT thin film formed on a surface the transparent substrate wherein the CNT thin film is formed of a CNT composition comprising CNTs and a doped dispersant. Further disclosed is a method for producing the transparent CNT electrode. The transparent CNT electrode exhibits excellent conductive properties, can be produced in an economical and simple manner by a room temperature wet process, and can be applied to flexible displays. The transparent CNT electrode can be used to fabricate a variety of devices, including image sensors, solar cells, liquid crystal displays, organic electroluminescence (EL) displays and touch screen panels, that are required to have both light transmission properties and conductive properties.
    Type: Application
    Filed: February 14, 2012
    Publication date: June 7, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seon Mi YOON, Jae Young CHOI, Dong Kee YI, Seong Jae CHOI, Hyeon Jin SHIN
  • Publication number: 20120132357
    Abstract: A carbonization catalyst for forming graphene may be exfoliated from a graphene sheet by etching. A binder layer may be formed on the graphene sheet on which a carbonization catalyst is formed, to support and fix all or part of the graphene sheet. Further, the graphene sheet from which the carbonization catalyst is exfoliated may be transferred to a device. When exfoliating the carbonization catalyst from the graphene sheet, an acid may be used together with a wetting agent.
    Type: Application
    Filed: February 2, 2012
    Publication date: May 31, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyeon Jin SHIN, Jaeyoung CHOI, Seonmi YOON
  • Publication number: 20120132862
    Abstract: Provided is a carbon nanotube dispersion including: carbon nanotubes, a solvent, and a dispersant, in which a mutifunctional ethylene oxide-propylene oxide block copolymer acts as the dispersant. The carbon nanotube dispersion provides excellent dispersion stability in aqueous and organic systems. Therefore, the carbon nanotube dispersion is suitable for a transparent electrode.
    Type: Application
    Filed: January 31, 2008
    Publication date: May 31, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD
    Inventors: Hyeon-jin SHIN, Jae-young CHOI, Seong-jae CHOI, Seon-mi YOON
  • Patent number: 8173217
    Abstract: A carbon nanotube (CNT) film having a transformed substrate structure and a manufacturing method thereof. The CNT film includes a transparent substrate, a plurality of three-dimensional (3D) structures formed distant from each other on the transparent substrate, and carbon nanotubes (CNTs) deposited on the transparent substrate where the plurality of 3D structures is not formed. The method includes forming a plurality of 3D structures distant from each other on a transparent substrate, and depositing a CNT solution on the substrate with the plurality of 3D structures formed thereon, wherein the CNT solution is deposited into a portion of the transparent substrate where the 3D structures are not formed. Thus, the deposition mechanism of the CNT solution is controlled to thereby increase the transparency of the CNT film and the electrical conductivity of an electrode including the CNT film.
    Type: Grant
    Filed: August 11, 2010
    Date of Patent: May 8, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyeon Jin Shin, Seonmi Yoon, Jaeyoung Choi, Jin Seung Sohn, Eun Hyoung Cho
  • Publication number: 20120088123
    Abstract: Provided are a process for economically preparing a graphene shell having a desired configuration which is applicable in various fields wherein in the process the thickness of the graphene she can be controlled, and a graphene shell prepared by the process.
    Type: Application
    Filed: December 1, 2011
    Publication date: April 12, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae-young CHOI, Hyeon-Jin SHIN, Seon-mi YOON
  • Publication number: 20120080086
    Abstract: A transparent electrode on at least one surface of a transparent substrate may include graphene doped with a p-dopant. The transparent electrode may be efficiently applied to a variety of display devices or solar cells.
    Type: Application
    Filed: October 5, 2011
    Publication date: April 5, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seon-mi Yoon, Won-mook Choi, Hyeon-jin Shin, Jae-young Choi
  • Publication number: 20120070641
    Abstract: Provided are a graphene sheet and a process of preparing the same. Particularly, a process of economically preparing a large-area graphene sheet having a desired thickness and a graphene sheet prepared by the process are provided.
    Type: Application
    Filed: November 28, 2011
    Publication date: March 22, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae-young CHOI, Hyeon-Jin SHIN, Seon-mi YOON
  • Patent number: 8138568
    Abstract: Disclosed is a transparent carbon nanotube (CNT) electrode using a conductive dispersant° The transparent CNT electrode comprises a transparent substrate and a CNT thin film formed on a surface the transparent substrate wherein the CNT thin film is formed of a CNT composition comprising CNTs and a doped dispersant. Further disclosed is a method for producing the transparent CNT electrode. The transparent CNT electrode exhibits excellent conductive properties, can be produced in an economical and simple manner by a room temperature wet process, and can be applied to flexible displays. The transparent CNT electrode can be used to fabricate a variety of devices, including image sensors, solar cells, liquid crystal displays, organic electroluminescence (EL) displays and touch screen panels, that are required to have both light transmission properties and conductive properties.
    Type: Grant
    Filed: April 13, 2007
    Date of Patent: March 20, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seon Mi Yoon, Jae Young Choi, Dong Kee Yi, Seong Jae Choi, Hyeon Jin Shin
  • Patent number: 8133466
    Abstract: A carbonization catalyst for forming graphene may be exfoliated from a graphene sheet by etching. A binder layer may be formed on the graphene sheet on which a carbonization catalyst is formed, to support and fix all or part of the graphene sheet. Further, the graphene sheet from which the carbonization catalyst is exfoliated may be transferred to a device. When exfoliating the carbonization catalyst from the graphene sheet, an acid may be used together with a wetting agent.
    Type: Grant
    Filed: January 23, 2009
    Date of Patent: March 13, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyeon Jin Shin, Jaeyoung Choi, Seonmi Yoon
  • Publication number: 20120024505
    Abstract: A heat transfer medium and a heat transfer method using the same are provided. The heat transfer medium comprises a film coated with a plurality of nano particles, which absorb light incident to the film to thereby transfer heat to a target object. When nano particles are applied onto a target object, the particles are removed by etching, and when a transparent film coated thereon with the nano particles is positioned, as a mask, on a target object requiring heat transfer, and then is exposed to infrared rays, heat is transferred to a specified portion of a target object under the coated nano particles, thereby obtaining a heat transfer effect without leaving unnecessary heat generating materials.
    Type: Application
    Filed: October 11, 2011
    Publication date: February 2, 2012
    Applicant: SAMSUNG ELECTTRONICS CO., LTD.
    Inventors: Seonmi Yoon, Jaeyoung Choi, Hyeon Jin Shin, Jeong Gun Lee, Jongmyeon Park
  • Publication number: 20120021249
    Abstract: A method of controlling the number of layers of graphene layers includes forming graphene on a first surface of a first substrate, and forming a second substrate on a second surface of the first substrate; and irradiating the graphene with light to cause constructive Fresnel interference, wherein a multilayer structure or non-uniform graphene structure formed on the a surface of the graphene is removed by the constructive Fresnel interference.
    Type: Application
    Filed: June 24, 2011
    Publication date: January 26, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyeon-jin SHIN, Jae-Young CHOI, Gang-hee HAN, Young-hee LEE