Patents by Inventor Dong-kee Yi

Dong-kee Yi 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: 8840954
    Abstract: Provided is a transparent carbon nanotube (CNT) electrode comprising a net-like (i.e., net-shaped) CNT thin film and a method for preparing the same. More specifically, a transparent CNT electrode comprises a transparent substrate and a net-shaped CNT thin film formed on the transparent substrate, and a method for preparing a transparent CNT electrode, comprising forming a thin film using particulate materials and CNTs, and then removing the particulate materials to form a net-shaped CNT thin film. The transparent CNT electrode exhibits excellent electrical conductivity while maintaining high light transmittance. Therefore, the transparent CNT electrode can be widely used to fabricate a variety of electronic devices, including image sensors, solar cells, liquid crystal displays, organic electroluminescence (EL) displays, and touch screen panels, that have need of electrodes possessing both light transmission properties and conductive properties.
    Type: Grant
    Filed: August 15, 2011
    Date of Patent: September 23, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong Kee Yi, Seon Mi Yoon, Jae Young Choi, O Ok Park, Mun Ho Kim, Hong Kyoon Choi
  • Patent number: 8603836
    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: February 14, 2012
    Date of Patent: December 10, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seon Mi Yoon, Jae Young Choi, Dong Kee Yi, Seong Jae Choi, Hyeon Jin Shin
  • Patent number: 8557568
    Abstract: Provided is a method of disrupting cells comprising adding gold nanorods to a solution containing cells and irradiating the gold nanorods with a laser to disrupt the cells. A method and an apparatus for continuously disrupting cells and amplifying nucleic acids in a single microchamber are also provided, wherein the method comprises introducing a solution containing cells and gold nanorods into a microchamber, irradiating a laser onto the gold nanorods to disrupt the cells, and amplifying a nucleic acid from the disrupted cells in the microchamber. The apparatus comprises a cell disruption chamber comprising a sample inlet, and gold nanorods introduced therein; a laser attached to the cell disruption chamber, wherein the laser is for generating light at a wavelength absorbed by the gold nanorods; and a heater and a cooler for heating and cooling the cell disruption chamber. Also disclosed is a lab-on-a chip comprising the apparatus.
    Type: Grant
    Filed: May 13, 2011
    Date of Patent: October 15, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kwang Ho Cheong, Dong-kee Yi, Jeong-gun Lee, Jong-myeon Park
  • 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: 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
  • 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
  • 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
  • Publication number: 20110293850
    Abstract: Provided is a transparent carbon nanotube (CNT) electrode comprising a net-like (i.e., net-shaped) CNT thin film and a method for preparing the same. More specifically, a transparent CNT electrode comprises a transparent substrate and a net-shaped CNT thin film formed on the transparent substrate, and a method for preparing a transparent CNT electrode, comprising forming a thin film using particulate materials and CNTs, and then removing the particulate materials to form a net-shaped CNT thin film. The transparent CNT electrode exhibits excellent electrical conductivity while maintaining high light transmittance. Therefore, the transparent CNT electrode can be widely used to fabricate a variety of electronic devices, including image sensors, solar cells, liquid crystal displays, organic electroluminescence (EL) displays, and touch screen panels, that have need of electrodes possessing both light transmission properties and conductive properties.
    Type: Application
    Filed: August 15, 2011
    Publication date: December 1, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dong Kee YI, Seon Mi YOON, Jae Young CHOI, O Ok PARK, Mun Ho KIM, Hong Kyoon CHOI
  • Publication number: 20110279378
    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: Application
    Filed: July 26, 2011
    Publication date: November 17, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyeon Jin SHIN, Jae Young CHOI, Dong Kee YI, Seong Jae CHOI, Seonmi YOON
  • Patent number: 8053059
    Abstract: Provided is a substrate for forming a pattern comprising an inorganic layer having a modified surface, wherein the modified surface is formed by coating a surface of the inorganic layer with a bifunctional molecule comprising a functional group having an affinity for a nanocrystal at one end of the molecule and a functional group having an affinity for the inorganic layer at the other end of the molecule. A method for forming a pattern of nanocrystals is also provided.
    Type: Grant
    Filed: June 1, 2007
    Date of Patent: November 8, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seong Jae Choi, Kyung Sang Cho, Jae Young Choi, Dong Kee Yi, Hyeon Jin Shin, Seon Mi Yoon, In Young Song, Jong Hyeon Lee, Duk Young Jung, Geun Tae Cho
  • Patent number: 8026878
    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: November 13, 2007
    Date of Patent: September 27, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyeon Jin Shin, Jae Young Choi, Dong Kee Yi, Seong Jae Choi, Seonmi Yoon
  • Patent number: 8021747
    Abstract: Provided is a transparent carbon nanotube (CNT) electrode comprising a net-like (i.e., net-shaped) CNT thin film and a method for preparing the same. More specifically, a transparent CNT electrode comprises a transparent substrate and a net-shaped CNT thin film formed on the transparent substrate, and a method for preparing a transparent CNT electrode, comprising forming a thin film using particulate materials and CNTs, and then removing the particulate materials to form a net-shaped CNT thin film. The transparent CNT electrode exhibits excellent electrical conductivity while maintaining high light transmittance. Therefore, the transparent CNT electrode can be widely used to fabricate a variety of electronic devices, including image sensors, solar cells, liquid crystal displays, organic electroluminescence (EL) displays, and touch screen panels, that have need of electrodes possessing both light transmission properties and conductive properties.
    Type: Grant
    Filed: June 22, 2007
    Date of Patent: September 20, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong Kee Yi, Seon Mi Yoon, Jae Young Choi, O Ok Park, Mun Ho Kim, Hong Kyoon Choi
  • Publication number: 20110212514
    Abstract: Provided is a method of disrupting cells comprising adding gold nanorods to a solution containing cells and irradiating the gold nanorods with a laser to disrupt the cells. A method and an apparatus for continuously disrupting cells and amplifying nucleic acids in a single microchamber are also provided, wherein the method comprises introducing a solution containing cells and gold nanorods into a microchamber, irradiating a laser onto the gold nanorods to disrupt the cells, and amplifying a nucleic acid from the disrupted cells in the microchamber.
    Type: Application
    Filed: May 13, 2011
    Publication date: September 1, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kwang Ho CHEONG, Dong-kee YI, Jeong-gun LEE, Jong-myeon PARK
  • Patent number: 7972819
    Abstract: Provided is a method of disrupting cells comprising adding gold nanorods to a solution containing cells and irradiating the gold nanorods with a laser to disrupt the cells. A method and an apparatus for continuously disrupting cells and amplifying nucleic acids in a single microchamber are also provided, wherein the method comprises introducing a solution containing cells and gold nanorods into a microchamber, irradiating a laser onto the gold nanorods to disrupt the cells, and amplifying a nucleic acid from the disrupted cells in the microchamber.
    Type: Grant
    Filed: August 14, 2007
    Date of Patent: July 5, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kwang Ho Cheong, Dong-kee Yi, Jeong-gun Lee, Jong-myeon Park
  • Patent number: 7888857
    Abstract: A three-dimensional light emitting device and a method for fabricating the light emitting device are provided. The light emitting device comprises a substrate and a semiconductor nanoparticle layer wherein the substrate is provided with a plurality of three-dimensional recesses and the surface having the recesses is coated with semiconductor nanoparticles. According to the three-dimensional light emitting device, the formation of the semiconductor nanoparticles on the surface of the recessed substrate increases the light emitting area and enhances the luminescence intensity, leading to an increase in the amount of light emitted from the light emitting device per unit area. Therefore, the three-dimensional light emitting device has the advantage of improved luminescence efficiency.
    Type: Grant
    Filed: September 25, 2006
    Date of Patent: February 15, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae Young Choi, Byoung Lyong Choi, Dong Kee Yi, Kwang Soo Seol, Seong Jae Choi
  • Patent number: 7880175
    Abstract: Disclosed herein is an ultraviolet (UV) light-blocking composition comprising a metal nanoparticle that absorbs and blocks a UV light wavelength using a surface plasmon-absorbing wavelength, and a dielectric. The UV light-blocking composition is capable of absorbing and blocking a UV light wavelength or, a specific wavelength, using the surface plasmon-absorbing wavelength of the metal nanoparticle or, the plasmon-absorbing wavelength transited by the dielectric, thereby demonstrating increased visibility when applied to an image display apparatus such as a mobile phone, and the like.
    Type: Grant
    Filed: November 13, 2007
    Date of Patent: February 1, 2011
    Assignee: Samsung Advanced Institute of Technology
    Inventors: Hyeon Jin Shin, Jae Young Choi, In Yong Song, Dong Kee Yi, Seong Jae Choi, Seon Mi Yoon
  • Patent number: 7662732
    Abstract: A method of preparing a patterned carbon nanotube array a patterned carbon nanotube array prepared thereby are provided. The method includes forming carbon nanotubes in channels of porous templates, arranging the templates in a predetermined pattern on a substrate and selectively removing the templates to expose the carbon nanotubes.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: February 16, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seong Jae Choi, Kwang Soo Seol, Jae Young Choi, Dong Kee Yi, Seon Mi Yoon
  • Publication number: 20100032737
    Abstract: A nano-magnetic memory device capable of writing/reading multi data in the nano-magnetic memory cell by controlling an amount of an induced current which is formed after a magnetic nanodot is perturbed and rearranged according to a word line current flowing from the first electrode through a nanowire of the nano-magnetic memory device to the second electrode. Consequently, a size of the memory device is reduced and a density of the memory device may be improved by providing a simplified nano-magnetic memory device of which a cell size is smaller.
    Type: Application
    Filed: November 28, 2006
    Publication date: February 11, 2010
    Inventors: Kwang Soo Seol, Jae Young Choi, Dong Kee Yi, Seong Jae Choi
  • Publication number: 20100019211
    Abstract: A nanocomposite material and a method of manufacturing the same are disclosed. The nanocomposite material includes a plurality of nanoparticles coated with a metal oxide, and a matrix of the metal oxide immobilizing the nanoparticles that are dispersed therein. The nanocomposite material is manufactured such that macro- or micro-scale cracks are prevented or effectively prevented, light stability is enhanced over a light-emitting period, and light brightness is improved.
    Type: Application
    Filed: September 22, 2009
    Publication date: January 28, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dong-kee YI, Byung-ki KIM, Jae-ho LEE, Eun-joo JANG, Seong-jae CHOI
  • Publication number: 20090280327
    Abstract: Composites and methods associated with the same are provided. The composite structures are formed of quantum dots and magnetic nanoparticles. The structures may be coated, for example, with a non-organic shell such as silica. In some cases, the shell may be functionalized or derivatized to include compounds, atoms, or materials that can alter or improve properties such as water solubility, water stability, photo-stability and biocompatibility. A reverse microemulsion process can be used to form the coated composites. The composition and other characteristics of the composites may be controlled to provide desired magnetic and optical properties. The structures may be used in a variety of applications including biological labeling, magnetic resonance imagine (MRI) and drug targeting, amongst others.
    Type: Application
    Filed: April 9, 2009
    Publication date: November 12, 2009
    Applicant: Agency for Science, Technology and Research
    Inventors: Jackie Y. Ying, Subramanian T. Selvan, Dong Kee Yi, Su Seong Lee