Patents by Inventor Young Roh

Young Roh 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: 9793441
    Abstract: An LED is provided to include: a first conductive type semiconductor layer; an active layer positioned over the first conductive type semiconductor layer; a second conductive type semiconductor layer positioned over the active layer; and a defect blocking layer comprising a masking region to cover at least a part of the top surface of the second conductive semiconductor layer and an opening region to partially expose the top surface of the second conductive type semiconductor layer, wherein the active layer and the second conductive type semiconductor layer are disposed to expose a part of the first conductive type semiconductor layer, and wherein the defect blocking layer comprises a first region and a second region surrounding the first region, and a ratio of the area of the opening region to the area of the masking region in the first region is different from a ratio of die area of the opening region to the area of the masking region in the second region.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: October 17, 2017
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Jong Hyeon Chae, Jong Min Jang, Won Young Roh, Dae Woong Suh, Min Woo Kang, Joon Sub Lee, Hyun A Kim, Kyoung Wan Kim, Chang Yeon Kim
  • Patent number: 9711354
    Abstract: A template for growing a semiconductor, a method of separating a growth substrate and a method of fabricating a light emitting device using the same are disclosed. The template for growing a semiconductor includes a growth substrate including a nitride substrate; a seed layer disposed on the growth substrate and including at least one trench; and a growth stop layer disposed on a bottom surface of the trench, wherein the trench includes an upper trench and a lower trench, and the upper trench has a smaller width than the lower trench.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: July 18, 2017
    Assignee: SEOUL VIOSYS CO., LTD.
    Inventors: Jong Min Jang, Hee Sub Lee, Won Young Roh, Jong Hyeon Chae, Joon Sup Lee, Daewoong Suh, Hyun A Kim, Seon Min Bae
  • Publication number: 20170200864
    Abstract: A light-emitting diode is provided to include: a transparent substrate having a first surface, a second surface, and a side surface; a first conductive semiconductor layer positioned on the first surface of the transparent substrate; a second conductive semiconductor layer positioned on the first conductive semiconductor layer; an active layer positioned between the first conductive semiconductor layer and the second conductive semiconductor layer; a first pad electrically connected to the first conductive semiconductor layer; and a second pad electrically connected to the second conductive semiconductor layer, wherein the transparent substrate is configured to discharge light generated by the active layer through the second surface of the transparent substrate, and the light-emitting diode has a beam angle of at least 140 degrees or more. Accordingly, a light-emitting diode suitable for a backlight unit or a surface lighting apparatus can be provided.
    Type: Application
    Filed: March 27, 2017
    Publication date: July 13, 2017
    Inventors: Jong Hyeon Chae, Joon Sup Lee, Won Young Roh, Min Woo Kang, Jong Min Jang, Hyun A. Kim, Daewoong Suh
  • Publication number: 20170200858
    Abstract: Disclosed are a light emitting diode and a light emitting diode module. The light emitting diode module includes a printed circuit board and a light emitting diode joined thereto through a solder paste. The light emitting diode includes a first electrode pad electrically connected to a first conductive type semiconductor layer and a second electrode pad connected to a second conductive type semiconductor layer, wherein each of the first electrode pad and the second electrode pad includes at least five pairs of Ti/Ni layers or at least five pairs of Ti/Cr layers and the uppermost layer of Au. Thus a metal element such as Sn in the solder paste is prevented from diffusion so as to provide a reliable light emitting diode module.
    Type: Application
    Filed: March 27, 2017
    Publication date: July 13, 2017
    Inventors: Jong Hyeon Chae, Joon Sup Lee, Daewoong Suh, Won Young Roh, Min Woo Kang, Jong Min Jang
  • Patent number: 9681648
    Abstract: Provided are transgenic Caenorhabditis elegans (C. elegans) overexpressing DNA methyltransferase 3a (Dnmt3a) and a method of producing the same. According to the method, a specific mechanism and related factors for DNA methylation mediated by Dnmt3a may be found, and a critical gene for regulating the life span of C. elegans may be identified, and therefore C. elegans may be used as an animal model for screening a drug for a DNA methylation-related disease.
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: June 20, 2017
    Assignee: POSTECH ACADEMY-INDUSTRY FOUNDATION
    Inventors: Tae Young Roh, Seung-Jae Lee, Murat Artan, Yuna Kim, Hong Gil Nam
  • Publication number: 20170148954
    Abstract: A light emitting device including a light emitting structure disposed on one surface of a substrate and a transflective portion disposed on the other surface of the substrate. The transflective portion and the substrate have different indexes of refraction from one another.
    Type: Application
    Filed: February 2, 2017
    Publication date: May 25, 2017
    Inventors: Jong Hyeon CHAE, Chung Hoon LEE, Daewoong SUH, Jong Min JANG, Joon Sup LEE, Won Young ROH, Min Woo KANG, Hyun A KIM, Seon Min BAE
  • Patent number: 9634193
    Abstract: A light-emitting diode including a substrate, a first semiconductor layer disposed on the substrate, an active layer disposed on the first semiconductor layer, a second semiconductor layer disposed on the active layer and having a conductivity type different than that of the first semiconductor layer, and a reflective pattern disposed on the second semiconductor layer and configured to reflect light emitted from the active layer, the reflective pattern having heterogeneous metal layers and configured to absorb stress caused by differences in coefficient of thermal expansion between the heterogeneous metal layers.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: April 25, 2017
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Jong Hyeon Chae, Jong Min Jang, Won Young Roh, Daewoong Suh, Dae Sung Cho, Joon Sup Lee, Kyu Ho Lee, Chi Hyun In
  • Patent number: 9628721
    Abstract: An imaging apparatus is provided, which includes an image capturer configured to generate a plurality of short-exposure images by performing continuous imaging for a first time in a first imaging mode in which imaging is performed through exposure over the first time, a processor configured to control the image capturer to generate at least one short-exposure image by performing additional imaging after the first time if an imaging command is input in a state where the first imaging mode and an HDR (High Dynamic Range) mode are set, and an image processor configured to synthesize the short-exposure images generated by the image capturer by successively accumulating the short-exposure images.
    Type: Grant
    Filed: June 18, 2015
    Date of Patent: April 18, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyoung-hwan Moon, Young-geol Kim, Jae-young Roh, Na-youn Park, Je-seung Yeon
  • Publication number: 20170092821
    Abstract: An LED is provided to include: a first conductive type semiconductor layer; an active layer positioned over the first conductive type semiconductor layer; a second conductive type semiconductor layer positioned over the active layer; and a defect blocking layer comprising a masking region to cover at least a part of the top surface of the second conductive semiconductor masking region to cover at least a part of the top surface of the second conductive semiconductor layer and an opening region to partially expose the top surface of the second conductive type semiconductor layer, wherein the active layer and the second conductive type semiconductor layer are disposed to expose a part of the first conductive type semiconductor layer, and wherein the defect blocking layer comprises a first region and a second region surrounding the first region, and a ratio of the area of the opening region to the area of the masking region in the first region is different from a ratio of the area of the opening region to the ar
    Type: Application
    Filed: December 13, 2016
    Publication date: March 30, 2017
    Inventors: Jong Hyeon Chae, Jong Min Jang, Won Young Roh, Dae Woong Suh, Min Woo Kang, Joon Sub Lee, Hyun A. Kim, Kyoung Wan Kim, Chang Yeon Kim
  • Patent number: 9608186
    Abstract: Disclosed are a light emitting diode and a light emitting diode module. The light emitting diode module includes a printed circuit board and a light emitting diode joined thereto through a solder paste. The light emitting diode includes a first electrode pad electrically connected to a first conductive type semiconductor layer and a second electrode pad connected to a second conductive type semiconductor layer, wherein each of the first electrode pad and the second electrode pad includes at least five pairs of Ti/Ni layers or at least five pairs of Ti/Cr layers and the uppermost layer of Au. Thus a metal element such as Sn in the solder paste is prevented from diffusion so as to provide a reliable light emitting diode module.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: March 28, 2017
    Assignee: SEOUL VIOSYS CO., LTD.
    Inventors: Jong Hyeon Chae, Joon Sup Lee, Daewoong Suh, Won Young Roh, Min Woo Kang, Jong Min Jang
  • Patent number: 9608171
    Abstract: A light-emitting diode is provided to include: a transparent substrate having a first surface, a second surface, and a side surface; a first conductive semiconductor layer positioned on the first surface of the transparent substrate; a second conductive semiconductor layer positioned on the first conductive semiconductor layer; an active layer positioned between the first conductive semiconductor layer and the second conductive semiconductor layer; a first pad electrically connected to the first conductive semiconductor layer; and a second pad electrically connected to the second conductive semiconductor layer, wherein the transparent substrate is configured to discharge light generated by the active layer through the second surface of the transparent substrate, and the light-emitting diode has a beam angle of at least 140 degrees or more. Accordingly, a light-emitting diode suitable for a backlight unit or a surface lighting apparatus can be provided.
    Type: Grant
    Filed: June 8, 2015
    Date of Patent: March 28, 2017
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Jong Hyeon Chae, Joon Sup Lee, Won Young Roh, Min Woo Kang, Jong Min Jang, Hyun A Kim, Daewoong Suh
  • Publication number: 20170084790
    Abstract: A light emitting diode (LED) includes a substrate, a first semiconductor layer disposed on the substrate, an active layer disposed on a portion of the first semiconductor layer, a second semiconductor layer disposed on the active layer, a first conductive layer disposed on a portion of the first semiconductor layer, a second conductive layer disposed on the second semiconductor layer, and an insulating layer overlapping the first semiconductor layer, the second semiconductor layer, and the reflection pattern, in which the insulating layer has a first region having different thicknesses and a second region having a substantially constant thickness.
    Type: Application
    Filed: December 2, 2016
    Publication date: March 23, 2017
    Inventors: Jong Hyeon Chae, Jong Min Jang, Won Young Roh, Dae Woong Suh, Min Woo Kang, Joon Sub Lee, Hyun A Kim
  • Patent number: 9590144
    Abstract: A light emitting device including a light emitting structure disposed on one surface of a substrate and a transflective portion disposed on the other surface of the substrate. The transflective portion and the substrate have different indexes of refraction from one another.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: March 7, 2017
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Jong Hyeon Chae, Chung Hoon Lee, Daewoong Suh, Jong Min Jang, Joon Sup Lee, Won Young Roh, Min Woo Kang, Hyun A Kim, Seon Min Bae
  • Publication number: 20170020116
    Abstract: Provided are transgenic Caenorhabditis elegans (C. elegans) overexpressing DNA methyltransferase 3a (Dnmt3a) and a method of producing the same. According to the method, a specific mechanism and related factors for DNA methylation mediated by Dnmt3a may be found, and a critical gene for regulating the life span of C. elegans may be identified, and therefore C. elegans may be used as an animal model for screening a drug for a DNA methylation-related disease.
    Type: Application
    Filed: October 14, 2015
    Publication date: January 26, 2017
    Inventors: Tae Young Roh, Seung-Jae Lee, Murat Artan, Yuna Kim, Hong Gil Nam
  • Patent number: 9548425
    Abstract: A light-emitting diode is provided to include: a transparent substrate having a first surface, a second surface, and a side surface; a first conductive semiconductor layer positioned on the first surface of the transparent substrate; a second conductive semiconductor layer positioned on the first conductive semiconductor layer; an active layer positioned between the first conductive semiconductor layer and the second conductive semiconductor layer; a first pad electrically connected to the first conductive semiconductor layer; and a second pad electrically connected to the second conductive semiconductor layer, wherein the transparent substrate is configured to discharge light generated by the active layer through the second surface of the transparent substrate, and the light-emitting diode has a beam angle of at least 140 degrees or more. Accordingly, a light-emitting diode suitable for a backlight unit or a surface lighting apparatus can be provided.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: January 17, 2017
    Assignee: SEOUL VIOSYS CO., LTD.
    Inventors: Jong Hyeon Chae, Joon Sup Lee, Won Young Roh, Min Woo Kang, Jong Min Jang, Hyun A Kim, Daewoong Suh
  • Publication number: 20170012176
    Abstract: An LED is provided to include: a first conductive type semiconductor layer; an active layer positioned over the first conductive type semiconductor layer; a second conductive type semiconductor layer positioned over the active layer; and a defect blocking layer comprising a masking region to cover at least a part of the top surface of the second conductive semiconductor layer and an opening region to partially expose the top surface of the second conductive type semiconductor layer, wherein the active layer and the second conductive type semiconductor layer are disposed to expose a part of the first conductive type semiconductor layer, and wherein the defect blocking layer comprises a first region and a second region surrounding the first region, and a ratio of the area of the opening region to the area of the masking region in the first region is different from a ratio of die area of the opening region to the area of the masking region in the second region.
    Type: Application
    Filed: September 20, 2016
    Publication date: January 12, 2017
    Inventors: Jong Hyeon Chae, Jong Min Jang, Won Young Roh, Dae Woong Suh, Min Woo Kang, Joon Sub Lee, Hyun A. Kim, Kyoung Wan Kim, Chang Yeon Kim
  • Patent number: 9536924
    Abstract: A light-emitting diode is provided to include: a transparent substrate having a first surface, a second surface, and a side surface; a first conductive semiconductor layer positioned on the first surface of the transparent substrate; a second conductive semiconductor layer positioned on the first conductive semiconductor layer; an active layer positioned between the first conductive semiconductor layer and the second conductive semiconductor layer; a first pad electrically connected to the first conductive semiconductor layer; and a second pad electrically connected to the second conductive semiconductor layer, wherein the transparent substrate is configured to discharge light generated by the active layer through the second surface of the transparent substrate, and the light-emitting diode has a beam angle of at least 140 degrees or more. Accordingly, a light-emitting diode suitable for a backlight unit or a surface lighting apparatus can be provided.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: January 3, 2017
    Assignee: SEOUL VIOSYS CO., LTD.
    Inventors: Jong Hyeon Chae, Joon Sup Lee, Won Young Roh, Min Woo Kang, Jong Min Jang, Hyun A Kim, Daewoong Suh
  • Patent number: 9530939
    Abstract: A light emitting diode (LED) includes a substrate, a first semiconductor layer disposed on the substrate, an active layer disposed on a portion of the first semiconductor layer, a second semiconductor layer disposed on the active layer, a reflection pattern disposed on a portion of the second semiconductor layer, and a first insulating layer including a first portion having a first thickness and a second portion having a second thickness different from the first thickness, in which the first portion is disposed on the reflection pattern or the first semiconductor layer and the second portion is disposed on the second semiconductor layer.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: December 27, 2016
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Jong Hyeon Chae, Jong Min Jang, Won Young Roh, Dae Woong Suh, Min Woo Kang, Joon Sub Lee, Hyun A Kim
  • Patent number: 9520534
    Abstract: Disclosed are a light emitting diode (LED), an LED module including the same, and a method of fabricating the same. The light emitting diode includes a first conductive-type semiconductor layer; a second conductive-type semiconductor layer; an active layer interposed between the first conductive-type semiconductor layer and the second conductive-type semiconductor layer; a first electrode pad region electrically connected to the first conductive-type semiconductor layer; a second electrode pad region electrically connected to the second conductive-type semiconductor layer; and a spark gap formed between a first leading end electrically connected to the first electrode pad region and a second leading end electrically connected to the second electrode pad region. The spark gap can achieve electrostatic discharge protection of the light emitting diode.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: December 13, 2016
    Assignee: SEOUL VIOSYS CO., LTD.
    Inventors: Jong Hyeon Chae, Joon Sup Lee, Daewoong Suh, Min Woo Kang, Hyun A Kim, Won Young Roh, Jong Min Jang
  • Patent number: 9520543
    Abstract: Disclosed are a light emitting diode and a light emitting diode module. The light emitting diode module includes a printed circuit board and a light emitting diode joined thereto through a solder paste. The light emitting diode includes a first electrode pad electrically connected to a first conductive type semiconductor layer and a second electrode pad connected to a second conductive type semiconductor layer, wherein each of the first electrode pad and the second electrode pad includes at least five pairs of Ti/Ni layers or at least five pairs of Ti/Cr layers and the uppermost layer of Au. Thus a metal element such as Sn in the solder paste is prevented from diffusion so as to provide a reliable light emitting diode module.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: December 13, 2016
    Assignee: SEOUL VIOSYS CO., LTD.
    Inventors: Jong Hyeon Chae, Joon Sup Lee, Daewoong Suh, Won Young Roh, Min Woo Kang, Jong Min Jang