Patents by Inventor Won-Hoe Koo

Won-Hoe Koo 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: 9028086
    Abstract: There is provided a light source for an illumination apparatus and a method of manufacturing the same. The light source includes a light emitting device; a power unit module supplying an electrical signal to the light emitting device; a support unit having the light emitting device thereon and discharging heat generated by the light emitting device to the outside; and a housing unit covering and protecting the light emitting device, the power unit module and the support unit. The light emitting device is disposed to have a height greater than that of a contact region between the power unit module and the housing unit with relation to a lower edge of the housing unit.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: May 12, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yun Seok Woo, Won Hoe Koo, Jin Woo Bae, Wuk Chul Joung, Chang Hoon Baek
  • Publication number: 20140233242
    Abstract: A light source module including a light source, a first lens disposed above the light source and including a through hole penetrating through top and bottom surfaces thereof, and a second lens disposed to face the light source within the through hole and moving in an optical axis direction to adjust an amount of light incident to the first lens, the light generated by the light source, may be provided.
    Type: Application
    Filed: September 11, 2013
    Publication date: August 21, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Won Hoe KOO, June JANG, Kyeong Ik MIN
  • Patent number: 8770806
    Abstract: A light emitting diode (LED) lighting module is provided including an LED array, and at least one of a diffusing portion and a reflecting portion. The LED array, equipped with at least one LED, may include a side wall which surrounds the at least one LED. The diffusing portion may be detachably coupled to the LED array and may include a diffusion plate which diffuses light emitted from the at least one LED The reflecting portion may be detachably coupled to one of the LED array and the diffusing portion and may reflect light emitted from the at least one LED. The LED array may be selectively coupled with the diffusing portion, the reflecting portion, or both the diffusing portion and the reflecting portion.
    Type: Grant
    Filed: October 4, 2012
    Date of Patent: July 8, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Won-Hoe Koo, Chul Park, Yun Seok Woo, Il Seok Lee, Dong Il Lim, Deok Hee Hee Han
  • Patent number: 8632225
    Abstract: An optical lens includes: a lens body having an outer surface extending in a longitudinal direction (a first direction) and formed to be symmetrical in a lateral direction (a second direction); and a cavity formed at a lower portion of the lens body and having inner side faces asymmetrical in the longitudinal direction.
    Type: Grant
    Filed: July 13, 2011
    Date of Patent: January 21, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Won Hoe Koo, Sang Ho Yoon, Hyun Jung Kim, Ki Un Lee, Hyung Jin Kim, Kyeong Ik Min
  • Patent number: 8541778
    Abstract: A diffraction grating having a transparent supporting substrate; and a cured resin layer which is stacked on the transparent supporting substrate and which has concavities and convexities formed on a surface thereof, wherein when a Fourier-transformed image is obtained by performing two-dimensional fast Fourier transform processing on a concavity and convexity analysis image obtained by analyzing a shape of the concavities and convexities formed on the surface of the cured resin layer by use of an atomic force microscope, the Fourier-transformed image shows a circular or annular pattern substantially centered at an origin at which an absolute value of wavenumber is 0 ?m?1, and the circular or annular pattern is present within a region where an absolute value of wavenumber is within a range of 10 ?m?1 or less.
    Type: Grant
    Filed: July 16, 2010
    Date of Patent: September 24, 2013
    Assignee: JX Nippon Oil & Energy Corporation
    Inventors: Takashi Seki, Suzushi Nishimura, Maki Fukuda, Madoka Fukushima, Satoshi Masuyama, Soon Moon Jeong, Hideo Takezoe, Won Hoe Koo
  • Publication number: 20130186462
    Abstract: A transparent electroconductive substrate for a solar cell, comprising: a transparent supporting substrate; a transparent electroconductive layer; and a cured resin layer placed between the transparent supporting substrate and the transparent electroconductive layer, wherein concavities and convexities are formed on a surface of the cured resin layer, the surface facing the transparent electroconductive layer, and when a Fourier-transformed image is obtained by performing two-dimensional fast Fourier transform processing on a concavity and convexity analysis image obtained by analyzing a shape of the concavities and convexities by use of an atomic force microscope, the Fourier-transformed image shows a circular or annular pattern substantially centered at an origin at which an absolute value of wavenumber is 0 ?m?1, and the circular or annular pattern is present within a region where an absolute value of wavenumber is within a range from 0.5 to 10 ?m?1.
    Type: Application
    Filed: March 4, 2011
    Publication date: July 25, 2013
    Applicants: TOKYO INSTITUTE OF TECHNOLOGY, JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Hideo Takezoe, Won Hoe Koo, Suzushi Nishimura, Takashi Seki, Shigetaka Toriyama, Soon Moon Jeong, Maki Fukuda, Madoka Fukushima, Satoshi Masuyama
  • Publication number: 20120236532
    Abstract: A light-emitting device (LED) engine includes: a body having a through-hole; a light-emitting module that is disposed under the body, includes at least one light emitting device, and is disposed to expose a light-emitting surface via the through-hole; and a printed circuit board (PCB) which is disposed under the body, to which the light-emitting module is coupled, and includes a terminal unit for supplying power to the light-emitting module.
    Type: Application
    Filed: March 7, 2012
    Publication date: September 20, 2012
    Inventors: Won-hoe Koo, Yun-seok Woo, Dong-il Lim, Deok-hee Han, Chul Park, Il-seok Lee
  • Publication number: 20120140442
    Abstract: There is provided a light source for an illumination apparatus and a method of manufacturing the same. The light source includes a light emitting device; a power unit module supplying an electrical signal to the light emitting device; a support unit having the light emitting device thereon and discharging heat generated by the light emitting device to the outside; and a housing unit covering and protecting the light emitting device, the power unit module and the support unit. The light emitting device is disposed to have a height greater than that of a contact region between the power unit module and the housing unit with relation to a lower edge of the housing unit.
    Type: Application
    Filed: December 2, 2011
    Publication date: June 7, 2012
    Inventors: Yun Seok WOO, Won Hoe KOO, Jin Woo Bae, Wuk Chul JOUNG, Chang Hoon BAEK
  • Publication number: 20120132897
    Abstract: A diffraction grating having a transparent supporting substrate; and a cured resin layer which is stacked on the transparent supporting substrate and which has concavities and convexities formed on a surface thereof, wherein when a Fourier-transformed image is obtained by performing two-dimensional fast Fourier transform processing on a concavity and convexity analysis image obtained by analyzing a shape of the concavities and convexities formed on the surface of the cured resin layer by use of an atomic force microscope, the Fourier-transformed image shows a circular or annular pattern substantially centered at an origin at which an absolute value of wavenumber is 0 ?m?1, and the circular or annular pattern is present within a region where an absolute value of wavenumber is within a range of 10 ?m?1 or less.
    Type: Application
    Filed: July 16, 2010
    Publication date: May 31, 2012
    Applicants: TOKYO INSTITUTE OF TECHNOLOGY, JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Takashi Seki, Suzushi Nishimura, Maki Fukuda, Madoka Fukushima, Satoshi Mmasuyama, Soon Moon Jeong, Hideo Takezoe, Won Hoe Koo
  • Publication number: 20120051066
    Abstract: An optical lens includes: a lens body having an outer surface extending in a longitudinal direction (a first direction) and formed to be symmetrical in a lateral direction (a second direction); and a cavity formed at a lower portion of the lens body and having inner side faces asymmetrical in the longitudinal direction.
    Type: Application
    Filed: July 13, 2011
    Publication date: March 1, 2012
    Applicant: SAMSUNG LED CO., LTD.
    Inventors: Won Hoe KOO, Sang Ho YOON, Hyun Jung KIM, Ki Un LEE, Hyung Jin KIM, Kyeong Ik MIN
  • Publication number: 20110278548
    Abstract: A microlens for an organic EL element, which is used by being disposed on a light-emitting surface of the organic EL element, said microlens comprising a cured resin layer having concavities and convexities formed on a surface thereof, wherein when a Fourier-transformed image is obtained by performing two-dimensional fast Fourier transform processing on a concavity and convexity analysis image obtained by analyzing a shape of the concavities and convexities by use of an atomic force microscope, the Fourier-transformed image shows a circular or annular pattern substantially centered at an origin at which an absolute value of wavenumber is 0 ?m?1, and the circular or annular pattern is present within a region where an absolute value of wavenumber is within a range of 1 ?m?1 or less.
    Type: Application
    Filed: September 13, 2010
    Publication date: November 17, 2011
    Applicants: TOKYO INSTITUTE OF TECHNOLOGY, JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Hideo TAKEZOE, Won Hoe KOO, Suzushi NISHIMURA, Soon Moon JEONG
  • Patent number: 8021205
    Abstract: An organic light-emitting diode (“OLED”) device includes an organic light-emitting substrate part and a protective cover part. The organic light-emitting substrate part includes a base substrate and an OLED display portion formed on the base substrate to display an image. The protective cover part includes a first frit glass disposed on the OLED display portion to cover the OLED display portion, and a second frit glass formed around a periphery of the first frit glass. The second frit glass is connected to the first frit glass.
    Type: Grant
    Filed: January 15, 2009
    Date of Patent: September 20, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Joo-Hyeon Lee, Chang-Woong Chu, Chang-Mo Park, Won-Hoe Koo
  • Patent number: 7999467
    Abstract: A display device of present invention includes an insulating substrate, an array of display elements on the insulating substrate, a cover substrate opposing to the insulating substrate, a sealant formed outside the array of display elements, and a protection film formed on the cover substrate and covering the array of display elements.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: August 16, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hoon Kim, Won-Hoe Koo, Jung-Mi Choi
  • Patent number: 7986096
    Abstract: A display device includes an insulating substrate on which a display element is disposed, a resin layer disposed on the display element and having a depressed portion formed along an edge of the insulating substrate, and a sealing layer formed on the resin layer, with a portion of the sealing layer extending into the depressed portion of the resin layer. A method of manufacturing a display element includes disposing a display element on an insulating substrate, disposing a resin layer on the display element, and partially curing the resin layer. A depressed portion in the resin layer is formed using a pressurizing member and a sealing layer is disposed on the resin layer.
    Type: Grant
    Filed: May 24, 2007
    Date of Patent: July 26, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Won-Hoe Koo, Hoon Kim, Jung-Mi Choi
  • Patent number: 7935971
    Abstract: The present invention relates to a light emitting diode module capable of facilitating the connection between light emitting diode modules. The present invention provides a light emitting diode module including an insulating layer, a first circuit pattern layer and a second circuit pattern layer which are stacked on a top surface and a bottom surface of the insulating layer respectively and have one ends protruding to an outside of the insulating layer and the other ends positioned inside the insulating layer, a solder resist layer coated on the first circuit pattern layer, a first via formed vertically through a portion of the solder resist layer to be electrically connected to the first circuit pattern layer, a second via formed vertically through a portion of the solder resist layer and the insulating layer to be electrically connected to the second circuit pattern layer and a light emitting element mounted on the solder resist layer.
    Type: Grant
    Filed: December 9, 2008
    Date of Patent: May 3, 2011
    Assignee: Samsung Led Co. Ltd.
    Inventors: Min Sang Lee, Tae Hong Lee, Won Hoe Koo, Kyung Seob Oh
  • Patent number: 7915805
    Abstract: An organic electroluminescent display having better photoluminescence efficiency includes a first electrode, an organic light-emitting layer, and a second electrode sequentially disposed on a first surface of an insulating substrate, and a plurality of convex patterns disposed on a second surface of the insulating substrate opposite to the first surface and spaced apart from each other, and which are formed of a transparent sealant having a viscosity of 5,000 to 150,000 cp and comprised of an epoxy- or acrylate-based resin, together with a plurality of concave patterns interposed between the convex patterns.
    Type: Grant
    Filed: November 6, 2007
    Date of Patent: March 29, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Won-hoe Koo, Hoon Kim, Jin-koo Chung, Jung-mi Choi
  • Patent number: 7812527
    Abstract: An organic electro-luminescent display device includes barriers in a non-display area to protect a display area from water and oxygen. Barriers may include a permeation prevention barrier, a voltage contact portion, and a blocking layer. A permeation prevention barrier includes contact portions where a barrier layer having a lower permeability than a passivation layer penetrates through the passivation layer. A voltage contact portion penetrates the passivation layer so that a signal supply line contacts a conductive material. A blocking layer covers a wall, a planarization layer, and an inorganic insulation layer, and has a lower permeability than the planarization layer, the wall, and the inorganic insulation layer. The permeation prevention barrier, the voltage contact portion, and the blocking layer may be used in various combinations.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: October 12, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hoon Kim, Jin Koo Chung, Won Hoe Koo, Jung Mi Choi
  • Publication number: 20100225223
    Abstract: A manufacturing method for manufacturing a display device includes forming a discontinuous organic layer on at least one of a cover substrate and an insulating substrate provided with a display device element, arranging the insulating substrate and the cover substrate with facing each other for the organic layer to be interposed therebetween, and assembling the cover substrate and the insulating substrate by pressing the substrates together.
    Type: Application
    Filed: May 20, 2010
    Publication date: September 9, 2010
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Hoon KIM, Won-Hoe Koo, Jung-mi Choi
  • Patent number: 7744719
    Abstract: A manufacturing method for manufacturing a display device includes forming a discontinuous organic layer on at least one of a cover substrate and an insulating substrate provided with a display device element, arranging the insulating substrate and the cover substrate with facing each other for the organic layer to be interposed therebetween, and assembling the cover substrate and the insulating substrate by pressing the substrates together.
    Type: Grant
    Filed: June 1, 2007
    Date of Patent: June 29, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hoon Kim, Won-Hoe Koo, Jung-mi Choi
  • Patent number: 7671959
    Abstract: The invention provides display devices that minimize permeation of oxygen and moisture, as well as methods of manufacturing such display devices. A display device according to the present invention includes an insulating substrate, a cover substrate connected to the insulating substrate, and a display element positioned between the insulating substrate and the cover substrate. The display device further includes a first sealant along an edge of one of the insulating substrate and the cover substrate, the first sealant including a first part and a second part spaced apart from each other, a second sealant provided along the edge of the other of the insulating substrate and the cover substrate, the second sealant being arranged between the first part of the first sealant and the second part of the first sealant, and an encapsulation film interposed between the first sealants and the second sealant.
    Type: Grant
    Filed: May 24, 2007
    Date of Patent: March 2, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Won Hoe Koo, Hoon Kim, Jung Mi Choi