Patents by Inventor Kee-Youn Jang
Kee-Youn Jang 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).
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Publication number: 20240038942Abstract: A lighting device according to an embodiment comprises a substrate, a light emitting device disposed on the substrate, a first reflective member disposed on the substrate, a resin layer disposed on the first reflective member, and a wavelength conversion layer disposed on the resin layer, wherein the resin layer includes a first resin layer, a second resin layer spaced apart from the first resin layer, and a third resin layer disposed between the first and second resin layers; the wavelength conversion layer includes a first wavelength conversion layer disposed on the first resin layer and a second wavelength conversion layer disposed on the second resin layer, and the height of the second resin layer is different from the height of the first resin layer; and the light emitting device may be disposed in a region vertically overlap the second and third resin layers but vertically overlap the first layer.Type: ApplicationFiled: June 21, 2021Publication date: February 1, 2024Inventors: Kyoung Soo AHN, Young Min MOON, Kee Youn JANG
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Patent number: 9458984Abstract: A light emitting device includes: a frame having an opening; at least one light emitting diode (LED) disposed on the frame; a reflector disposed on the frame; and a reflective protrusion projecting from the reflector, wherein light emitted from at least one light emitting diode is reflected by the reflector through the opening, wherein the vertical axis of the reflective protrusion is perpendicular to a plane formed by extending the upper surface of the frame, wherein the upper surface of the frame contacts the reflector, and wherein a distance between two LEDs with one LED placed therebetween is greater than a distance between one LED and the reflector. Because a light source is disposed on the frame of the light emitting device, it is possible to easily exchange the light source of the light emitting diode by removing and attaching the frame without disassembling the entire lighting device.Type: GrantFiled: January 22, 2014Date of Patent: October 4, 2016Assignee: LG INNOTEK CO., LTD.Inventor: Kee Youn Jang
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Patent number: 9111777Abstract: Provided is a light emitting device and light unit using the same. The light emitting device comprises: a body that includes a horizontal surface; an electrode at least partially disposed in the body; two or more mounting parts protruding from the horizontal surface, wherein the two or more mounting parts are separated from each other by a space, and wherein each of the at least two or more mounting parts includes a surface that is inclined relative to the horizontal surface; and two or more light emitting diodes, each mounted on the inclined surface of a corresponding one of the two or more mounting parts and electrically connected to the electrode.Type: GrantFiled: September 15, 2010Date of Patent: August 18, 2015Assignee: LG ELECTRONICS INC.Inventor: Kee Youn Jang
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Publication number: 20140133147Abstract: A light emitting device includes: a frame having an opening; at least one light emitting diode (LED) disposed on the frame; a reflector disposed on the frame; and a reflective protrusion projecting from the reflector, wherein light emitted from at least one light emitting diode is reflected by the reflector through the opening, wherein the vertical axis of the reflective protrusion is perpendicular to a plane formed by extending the upper surface of the frame, wherein the upper surface of the frame contacts the reflector, and wherein a distance between two LEDs with one LED placed therebetween is greater than a distance between one LED and the reflector. Because a light source is disposed on the frame of the light emitting device, it is possible to easily exchange the light source of the light emitting diode by removing and attaching the frame without disassembling the entire lighting device.Type: ApplicationFiled: January 22, 2014Publication date: May 15, 2014Applicant: LG INNOTEK CO., LTD.Inventor: Kee Youn Jang
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Patent number: 8646940Abstract: Disclosed is a light emitting device. The light emitting device includes: a frame having an opening; at least one light emitting diode disposed on the frame; a reflector which reflects light irradiated from the light emitting diode and emits the light through the opening; and a reflective protrusion which is formed on an inner surface of the reflector and determines an orientation angle of the light emitted through the opening. Since a light source is disposed on the frame of the light emitting device according to the embodiment, it is possible to easily exchange the light source of the light emitting diode by removing and attaching the frame without disassembling the entire lighting device.Type: GrantFiled: June 18, 2010Date of Patent: February 11, 2014Assignee: LG Innotek Co., Ltd.Inventor: Kee Youn Jang
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Patent number: 8465176Abstract: Provided is a light emitting device and light unit using the same. The light emitting device comprises: a body including a horizontal surface; an insulating layer over at least a portion of the horizontal surface; an electrode over at least a portion of the insulating layer; a heat radiation member formed within the body and protruding from the horizontal surface, the heat radiation member comprising two or more surfaces that are inclined with respect to the horizontal surface; and two or more light emitting diodes, wherein each of the two or more light emitting diodes is mounted on a respective one of the two or more inclined surfaces, and wherein each of the two or more light emitting diodes is electrically connected to the electrode.Type: GrantFiled: September 15, 2010Date of Patent: June 18, 2013Assignee: LG Innotek Co., Ltd.Inventor: Kee Youn Jang
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Publication number: 20110149601Abstract: Provided is a light emitting device and light unit using the same. The light emitting device comprises: a body that includes a horizontal surface; an electrode at least partially disposed in the body; two or more mounting parts protruding from the horizontal surface, wherein the two or more mounting parts are separated from each other by a space, and wherein each of the at least two or more mounting parts includes a surface that is inclined relative to the horizontal surface; and two or more light emitting diodes, each mounted on the inclined surface of a corresponding one of the two or more mounting parts and electrically connected to the electrode.Type: ApplicationFiled: September 15, 2010Publication date: June 23, 2011Inventor: Kee Youn Jang
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Publication number: 20110149600Abstract: Provided is a light emitting device and light unit using the same. The light emitting device comprises: a body including a horizontal surface; an insulating layer over at least a portion of the horizontal surface; an electrode over at least a portion of the insulating layer; a heat radiation member formed within the body and protruding from the horizontal surface, the heat radiation member comprising two or more surfaces that are inclined with respect to the horizontal surface; and two or more light emitting diodes, wherein each of the two or more light emitting diodes is mounted on a respective one of the two or more inclined surfaces, and wherein each of the two or more light emitting diodes is electrically connected to the electrode.Type: ApplicationFiled: September 15, 2010Publication date: June 23, 2011Inventor: Kee Youn Jang
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Publication number: 20110019408Abstract: Disclosed is a light emitting device. The light emitting device includes: a frame having an opening; at least one light emitting diode disposed on the frame; a reflector which reflects light irradiated from the light emitting diode and emits the light through the opening; and a reflective protrusion which is formed on an inner surface of the reflector and determines an orientation angle of the light emitted through the opening. Since a light source is disposed on the frame of the light emitting device according to the embodiment, it is possible to easily exchange the light source of the light emitting diode by removing and attaching the frame without disassembling the entire lighting device.Type: ApplicationFiled: June 18, 2010Publication date: January 27, 2011Applicant: LG Innotek Co., Ltd.Inventor: Kee Youn JANG
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Patent number: 7221005Abstract: A negative resistance field-effect element that is a negative differential resistance field-effect element capable of achieving negative resistance at a low power supply voltage (low drain voltage) and also enabling securement of a high PVCR is formed on its InP substrate 11 having an asymmetrical V-groove whose surface on one side is a (100) plane and surface on the other side is a (011) plane with an InAlAs barrier layer (12) that has a trench (TR) one of whose opposed lateral faces is a (111) A plane and the other of which is a (331) B plane. An InGaAs quantum wire (13) that has a relatively narrow energy band gap is formed at the trench bottom surface as a high-mobility channel. An InAlAs modulation-doped layer (20) having a relatively wide energy band gap is formed on the quantum wire as a low-mobility channel.Type: GrantFiled: September 28, 2001Date of Patent: May 22, 2007Assignees: National Institute of Advanced Industrial Science and Technology, Japan Science and Technology CorporationInventors: Mutsuo Ogura, Takeyoshi Sugaya, Kee-Youn Jang, Yoshinobu Sugiyama
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Publication number: 20060267045Abstract: A negative resistance field-effect element that is a negative differential resistance field-effect element capable of achieving negative resistance at a low power supply voltage (low drain voltage) and also enabling securement of a high PVCR is formed on its InP substrate 11 having an asymmetrical V-groove whose surface on one side is a (100) plane and surface on the other side is a (011) plane with an InAlAs barrier layer (12) that has a trench (TR) one of whose opposed lateral faces is a (111) A plane and the other of which is a (331) B plane. An InGaAs quantum wire (13) that has a relatively narrow energy band gap is formed at the trench bottom surface as a high-mobility channel. An InAlAs modulation-doped layer (20) having a relatively wide energy band gap is formed on the quantum wire as a low-mobility channel.Type: ApplicationFiled: September 28, 2003Publication date: November 30, 2006Applicant: NAT.INST. OF ADVANCED INDUSTR. SCIENCE AND TECH.Inventors: Mutsuo Ogura, Takeyoshi Sugaya, Kee-Youn Jang, Yoshinobu Sugiyama