Patents by Inventor Hyung Jo Park

Hyung Jo Park 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: 8395174
    Abstract: Disclosed are a light emitting device and a method of manufacturing the same. The light emitting device includes a second electrode layer, a light emitting semiconductor layer including a second conductive semiconductor layer, an active layer, and a first conductive semiconductor layer on the second electrode layer, a reflective member spaced apart from the light emitting semiconductor layer on the second electrode layer, and a first electrode layer on the first conductive semiconductor layer.
    Type: Grant
    Filed: July 21, 2011
    Date of Patent: March 12, 2013
    Assignee: LG Innotek Co., Ltd.
    Inventor: Hyung Jo Park
  • Publication number: 20120286316
    Abstract: Disclosed are a semiconductor light emitting device. The semiconductor light emitting device comprises a light emitting structure including a first conductive semiconductor layer, a second conductive semiconductor layer, and an active; an electrode on a first region of the first conductive semiconductor layer; a conductive support member under the light emitting structure; a metal layer between the light emitting structure and the conductive support member; and a reflective layer between the metal layer and the light emitting structure, wherein the metal layer is physically contacted with a lower surface of the reflective layer, wherein the reflective layer includes a first layer and a second layer, wherein the first layer has a different material from the second layer, wherein the metal layer has a protrusion, wherein the first conductive semiconductor layer includes a roughness.
    Type: Application
    Filed: July 27, 2012
    Publication date: November 15, 2012
    Inventor: Hyung Jo PARK
  • Publication number: 20120280260
    Abstract: Provided are a semiconductor light emitting device and a method for manufacturing the same. The semiconductor light emitting device comprises a first electrode on an region of top surface of a first conductive semiconductor layer; a second electrode layer under a second conductive semiconductor layer; and a conductive support member under the second electrode layer, wherein the second conductive semiconductor layer includes a plurality of recesses on a lower portion of the second conductive semiconductor layer, wherein the second electrode layer has an uneven structure corresponding to the plurality of recesses.
    Type: Application
    Filed: July 16, 2012
    Publication date: November 8, 2012
    Inventor: Hyung Jo PARK
  • Patent number: 8274093
    Abstract: Provided are a semiconductor light emitting device and a method of fabricating the same. The semiconductor light emitting device comprises a multireflection layer comprising at least one of reflection layers of different refractive indices, a first conductive semiconductor layer on the multireflection layers, an active layer on the first conductive type semiconductor layer, and a second conductive type semiconductor layer on the active layer.
    Type: Grant
    Filed: September 5, 2008
    Date of Patent: September 25, 2012
    Assignee: LG Innotek Co., Ltd.
    Inventors: Hyung Jo Park, Dae Sung Kang, Hyo Kun Son
  • Patent number: 8253156
    Abstract: Disclosed are a semiconductor light emitting device. The semiconductor light emitting device comprises a light emitting structure comprising a IH-V group compound semiconductor, a reflective layer comprising mediums, which are different from each other and alternately stacked under the light emitting structure, and a second electrode layer under the reflective layer.
    Type: Grant
    Filed: November 25, 2008
    Date of Patent: August 28, 2012
    Assignee: LG Innotek Co., Ltd.
    Inventor: Hyung Jo Park
  • Patent number: 8237185
    Abstract: Embodiments provide a semiconductor light emitting device which comprises a light emitting structure comprising a plurality of compound semiconductor layers, an insulation layer on an outer surface of the light emitting structure, an ohmic layer under the light emitting structure and on an outer surface of the insulation layer, a first electrode layer on the light emitting structure, and a tunnel barrier layer between the first electrode layer and the ohmic layer.
    Type: Grant
    Filed: December 24, 2008
    Date of Patent: August 7, 2012
    Assignee: LG Innotek Co., Ltd.
    Inventor: Hyung Jo Park
  • Patent number: 8222656
    Abstract: Provided are a semiconductor light emitting device and a method for manufacturing the same. The semiconductor light emitting device comprises a plurality of compound semiconductor layers, a first electrode, a second electrode layer, and a conductive support member. The plurality of compound semiconductor layers comprises a first conductive type semiconductor layer, an active layer, and a second conductive type semiconductor layer. The first electrode is formed under the compound semiconductor layer. The second electrode layer is formed on the compound semiconductor layer. The second electrode layer has an unevenness. The conductive support member is formed on the second electrode layer.
    Type: Grant
    Filed: November 16, 2009
    Date of Patent: July 17, 2012
    Assignee: LG Innotek Co., Ltd.
    Inventor: Hyung Jo Park
  • Patent number: 8164105
    Abstract: Disclosed is a light emitting device. The light emitting device comprises a first conductive semiconductor layer, an active layer on the first conductive semiconductor layer, a second conductive semiconductor layer on the active layer, the second conductive semiconductor layer comprising a first area and a second area, a third conductive semiconductor layer on the second area of the second conductive semiconductor layer, a first electrode layer electrically connecting the first conductive semiconductor layer with the second conductive semiconductor layer of the second area, and a second electrode layer electrically connecting the second conductive semiconductor layer with the third conductive semiconductor layer.
    Type: Grant
    Filed: April 1, 2008
    Date of Patent: April 24, 2012
    Assignee: LG Innotek Co., Ltd.
    Inventor: Hyung Jo Park
  • Publication number: 20110278625
    Abstract: Disclosed are a light emitting device and a method of manufacturing the same. The light emitting device includes a second electrode layer, a light emitting semiconductor layer including a second conductive semiconductor layer, an active layer, and a first conductive semiconductor layer on the second electrode layer, a reflective member spaced apart from the light emitting semiconductor layer on the second electrode layer, and a first electrode layer on the first conductive semiconductor layer.
    Type: Application
    Filed: July 21, 2011
    Publication date: November 17, 2011
    Inventor: HYUNG JO PARK
  • Publication number: 20110248298
    Abstract: A light emitting device comprises a second electrode layer; a second conductivity-type semiconductor layer on the second electrode layer; a current blocking layer comprising an oxide of the second conductivity-type semiconductor layer; an active layer on the second conductivity-type semiconductor layer; a first conductivity-type semiconductor layer on the active layer; and a first electrode layer on the first conductivity-type semiconductor layer.
    Type: Application
    Filed: June 23, 2011
    Publication date: October 13, 2011
    Inventor: Hyung Jo Park
  • Patent number: 8013353
    Abstract: Disclosed are a light emitting device and a method of manufacturing the same. The light emitting device includes a second electrode layer, a light emitting semiconductor layer including a second conductive semiconductor layer, an active layer, and a first conductive semiconductor layer on the second electrode layer, a reflective member spaced apart from the light emitting semiconductor layer on the second electrode layer, and a first electrode layer on the first conductive semiconductor layer.
    Type: Grant
    Filed: May 8, 2009
    Date of Patent: September 6, 2011
    Assignee: LG Innotek Co., Ltd.
    Inventor: Hyung Jo Park
  • Publication number: 20110193093
    Abstract: Provided is a light emitting device. A light emitting device includes: a conductive support member; a light emitting structure for generating a light on the conductive support member, the light emitting structure comprising a first conductive type semiconductor layer, a second conductive type semiconductor layer, and an active layer; an electrode on the light emitting structure; and an oxide layer between the electrode and the light emitting structure. The light emitting structure includes an oxygen-injected region where oxygen is injected on an upper portion of the light emitting structure.
    Type: Application
    Filed: February 8, 2011
    Publication date: August 11, 2011
    Inventors: Hyung Jo Park, Hyun Kyong Cho
  • Patent number: 7989834
    Abstract: A light emitting device comprises a second electrode layer; a second conductivity-type semiconductor layer on the second electrode layer; a current blocking layer comprising an oxide of the second conductivity-type semiconductor layer; an active layer on the second conductivity-type semiconductor layer; a first conductivity-type semiconductor layer on the active layer; and a first electrode layer on the first conductivity-type semiconductor layer.
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: August 2, 2011
    Assignee: LG Innotek Co., Ltd.
    Inventor: Hyung Jo Park
  • Publication number: 20110156073
    Abstract: Provided are a light emitting device, a light emitting device package, and a lighting system. The light emitting device includes a light emitting structure, a buffer layer on the light emitting structure, and a filter layer on the buffer layer.
    Type: Application
    Filed: December 28, 2010
    Publication date: June 30, 2011
    Inventors: Hyung Jo Park, Sun Kyung Kim, Woon Kyung Choi
  • Publication number: 20110049553
    Abstract: A light emitting device package is provided. The light emitting device package includes a substrate including a first cavity having a first depth and a lateral surface inclined with respect to a bottom surface and a second cavity having a second depth recessed from the bottom surface of the first cavity and a lateral surface perpendicular to the bottom surface of the first cavity, a first electrode layer and a second electrode layer on the substrate, and a light emitting diode within the second cavity, the light emitting diode being electrically connected to the first and second electrode layers.
    Type: Application
    Filed: August 31, 2009
    Publication date: March 3, 2011
    Applicant: LG Innotek Co., Ltd.
    Inventor: Hyung Jo Park
  • Publication number: 20110001145
    Abstract: Embodiments provide a semiconductor light emitting device which comprises a light emitting structure comprising a plurality of compound semiconductor layers, an insulation layer on an outer surface of the light emitting structure, an ohmic layer under the light emitting structure and on an outer surface of the insulation layer, a first electrode layer on the light emitting structure, and a tunnel barrier layer between the first electrode layer and the ohmic layer.
    Type: Application
    Filed: December 24, 2008
    Publication date: January 6, 2011
    Applicant: LG INNOTEK CO., LTD.
    Inventor: Hyung Jo Park
  • Publication number: 20100289050
    Abstract: Disclosed are a light emitting device and a method of manufacturing the same. The light emitting device includes a second electrode layer, a light emitting semiconductor layer including a second conductive semiconductor layer, an active layer, and a first conductive semiconductor layer on the second electrode layer, a reflective member spaced apart from the light emitting semiconductor layer on the second electrode layer, and a first electrode layer on the first conductive semiconductor layer.
    Type: Application
    Filed: May 8, 2009
    Publication date: November 18, 2010
    Inventor: Hyung Jo Park
  • Publication number: 20100264440
    Abstract: Disclosed are a semiconductor light emitting device. The semiconductor light emitting device comprises a light emitting structure comprising a IH-V group compound semiconductor, a reflective layer comprising mediums, which are different from each other and alternately stacked under the light emitting structure, and a second electrode layer under the reflective layer.
    Type: Application
    Filed: November 25, 2008
    Publication date: October 21, 2010
    Inventor: Hyung Jo Park
  • Publication number: 20100252850
    Abstract: Provided are a semiconductor light emitting device and a method of fabricating the same. The semiconductor light emitting device comprises a multireflection layer comprising at least one of reflection layers of different refractive indices, a first conductive semiconductor layer on the multireflection layers, an active layer on the first conductive type semiconductor layer, and a second conductive type semiconductor layer on the active layer.
    Type: Application
    Filed: September 5, 2008
    Publication date: October 7, 2010
    Inventors: Hyung Jo Park, Dae Sung Kang, Hyo Kun Son
  • Publication number: 20100207160
    Abstract: Disclosed is a semiconductor light emitting device. The semiconductor light emitting device includes a first conductive semiconductor layer including a first carrier blocking layer of semiconductor material; an active layer below the first conductive semiconductor layer; and a second conductive semiconductor layer below the active layer.
    Type: Application
    Filed: February 12, 2010
    Publication date: August 19, 2010
    Inventor: Hyung Jo PARK