Patents by Inventor Chul-Ju Kim
Chul-Ju Kim 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: 20240159587Abstract: A sensor may include a reflective electrode, a photoelectric conversion layer on the reflective electrode and including one or more photoelectric conversion materials, a semi-transmissive electrode on the photoelectric conversion layer, a light transmitting buffer layer on the semi-transmissive electrode, and a semi-transmissive auxiliary layer on the light transmitting buffer layer.Type: ApplicationFiled: August 25, 2023Publication date: May 16, 2024Applicant: Samsung Electronics Co., Ltd.Inventors: Chul Joon HEO, Hwijoung SEO, Sungyoung YUN, Hyeong-Ju KIM, Kyung Bae PARK, Feifei FANG, Younhee LIM, Tae Jin CHOI
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Patent number: 11926226Abstract: A vehicle body includes a floor member, a support member coupled to an upper surface of the floor member, and a frame member coupled to an upper end of the support member to define a space between the floor member and the frame member, wherein the space is configured to house an item. The item may include a high-voltage battery.Type: GrantFiled: June 11, 2021Date of Patent: March 12, 2024Assignees: Hyundai Motor Company, Kia CorporationInventors: Seok Ju Gim, Tae Gyu Park, Ho Yeon Kim, Sun Hyung Cho, Chul Hee Heo, Ji Ae Yong
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Publication number: 20150230305Abstract: An alternating current (AC) light-emitting diode (LED) lighting apparatus includes a circuit board having a circuit pattern disposed thereon, LEDs disposed on the circuit board and connected to each other by the circuit pattern, and first to n-th LED drive integrated circuits (IC) disposed on the circuit board and respectively connected to the LEDs and the circuit pattern.Type: ApplicationFiled: April 23, 2015Publication date: August 13, 2015Inventors: Seong Bok YOON, Hwi Seok YANG, Chul Ju KIM
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Patent number: 9084320Abstract: An LED luminaire according to an exemplary embodiment of the present invention includes a rectifier outputting a first rectified voltage generated by rectifying AC voltage and flattening the rectified voltage, a power factor correction unit receiving the first rectified voltage output from the rectifier and generating and outputting a drive voltage, an LED light emitting unit including first to m-th light emitting groups each including at least one LED, the LED light emitting unit sequentially driven by receiving the drive voltage input from the power factor correction unit, and an LED drive IC determining a voltage level of the drive voltage upon receiving the drive voltage input from the power factor correction unit, and controlling sequential driving of the first to m-th light emitting groups according to the determined voltage level of the drive voltage.Type: GrantFiled: July 2, 2013Date of Patent: July 14, 2015Assignee: Posco LED Company Ltd.Inventors: Hwi Seok Yang, Chul Ju Kim
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Patent number: 9041303Abstract: Embodiments of the invention provide AC LED lighting apparatuses. The AC LED lighting apparatuses may increase luminous flux and provide optimal efficiency through novel arrangement of a plurality of light emitting blocks on a circuit board and a plurality of LEDs and drive ICs included in each of the light emitting blocks to be sequentially driven, and/or through efficient series-parallel connection between a limited number of LEDs.Type: GrantFiled: May 31, 2013Date of Patent: May 26, 2015Assignee: Posco LED Company Ltd.Inventors: Seong Bok Yoon, Hwi Seok Yang, Chul Ju Kim
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Publication number: 20140354156Abstract: An LED luminaire according to an exemplary embodiment of the present invention includes a rectifier outputting a first rectified voltage generated by rectifying AC voltage and flattening the rectified voltage, a power factor correction unit receiving the first rectified voltage output from the rectifier and generating and outputting a drive voltage, an LED light emitting unit including first to m-th light emitting groups each including at least one LED, the LED light emitting unit sequentially driven by receiving the drive voltage input from the power factor correction unit, and an LED drive IC determining a voltage level of the drive voltage upon receiving the drive voltage input from the power factor correction unit, and controlling sequential driving of the first to m-th light emitting groups according to the determined voltage level of the drive voltage.Type: ApplicationFiled: July 2, 2013Publication date: December 4, 2014Inventors: Hwi Seok YANG, Chul Ju Kim
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Publication number: 20140292213Abstract: Embodiments of the invention provide AC LED lighting apparatuses. The AC LED lighting apparatuses may increase luminous flux and provide optimal efficiency through novel arrangement of a plurality of light emitting blocks on a circuit board and a plurality of LEDs and drive ICs included in each of the light emitting blocks to be sequentially driven, and/or through efficient series-parallel connection between a limited number of LEDs.Type: ApplicationFiled: May 31, 2013Publication date: October 2, 2014Inventors: Seong Bok YOON, Hwi Seok Yang, Chul Ju Kim
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Publication number: 20140191673Abstract: An LED driving circuit includes: a bridge rectification circuit configured to receive an AC voltage and perform full-wave rectification on the AC voltage, the bridge rectification circuit including a first LED block, a second LED block, a third LED block, and a fourth LED block each including n LEDs (where n is a positive integer equal to or greater than one); a constant current IC configured to constantly limit a current flowing through the bridge rectification circuit; and a Vcc stabilization circuit connected between the constant current IC and a driving voltage supply node positioned between LEDs constituting one of the first to fourth LED blocks, and configured to stabilize a voltage applied through the bridge rectification circuit and provide the constant current IC with a stabilized driving voltage.Type: ApplicationFiled: December 3, 2013Publication date: July 10, 2014Applicant: POSCO LED COMPANY LTD.Inventors: Seong Bok Yoon, Dae Won Kim, Chul Ju Kim
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Patent number: 8033017Abstract: Provided is a method of manufacturing an evaporator for a loop heat pipe system including a condenser, a vapor transport line, and a liquid transport line, and more particularly, to a method of manufacturing an evaporator for a loop heat pipe system which provides a simple manufacturing process capable of improving a contact state between a sintered wick and a heating plate.Type: GrantFiled: August 24, 2009Date of Patent: October 11, 2011Assignees: Zalman Tech Co., Ltd., Sungkyunkwan University Foundation for Corporate CollaborationInventors: Chul-Ju Kim, Min-Whan Seo, Byung-Ho Sung, Jung-Hyun Yoo, Jee-Hoon Choi, Jae-Hyung Ki
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Publication number: 20100071880Abstract: An evaporator for a looped heat pipe (LHP) system, the evaporator including a plurality of wicks having pores formed therein; a plurality of heat transferring fins respectively having a wick coupler to be coupled to one of the plurality of wicks; a plurality of unit assemblies formed by respectively coupling each of the wicks and each of the heat transferring fins; an assembly structure formed by horizontally disposing the unit assemblies to enable a bottom surface of each of the unit assemblies to be located on a planar surface; a heat transferring plate coupled to a bottom part of the assembly structure; and a covering member coupled to the heat transferring plate.Type: ApplicationFiled: October 9, 2009Publication date: March 25, 2010Inventors: Chul-Ju Kim, Min-Whan Seo, Byung-Ho Sung, Jung-Hyun Yoo, Jee-Hoon Choi, Jung Rae Jo
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Publication number: 20100050224Abstract: A display apparatus and a control method thereof are provided. The display apparatus includes: a video processing unit which processes a first video; a display unit which displays the first video; a connecting unit which receives a second video of an image communication from a mobile communication terminal which enables the image communication; and a control unit which controls the video processing unit to process the second video of the image communication to display the second video in the display unit, and controls the mobile communication terminal based on a control command of a user.Type: ApplicationFiled: March 18, 2009Publication date: February 25, 2010Applicant: Samsung Electronics Co., Ltd.Inventor: Chul-ju KIM
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Publication number: 20090313828Abstract: Provided is a method of manufacturing an evaporator for a loop heat pipe system including a condenser, a vapor transport line, and a liquid transport line, and more particularly, to a method of manufacturing an evaporator for a loop heat pipe system which provides a simple manufacturing process capable of improving a contact state between a sintered wick and a heating plate.Type: ApplicationFiled: August 24, 2009Publication date: December 24, 2009Inventors: Chul-Ju Kim, Min-Whan Seo, Byung-Ho Sung, Jung-Hyun Yoo, Jee-Hoon Choi, Jae-Hyung Ki
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Publication number: 20090314472Abstract: Provided is an evaporator for a loop heat pipe system including a condenser, a vapor transport line, and a liquid transport line, and more particularly, to an evaporator having an increased contact area between a sintered wick and a heating plate.Type: ApplicationFiled: August 24, 2009Publication date: December 24, 2009Inventors: Chul Ju Kim, Min-Whan Seo, Byung-Ho Sung, Jung-Hyun Yoo, Jee-Hoon Choi, Jae-Hyung Ki
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Patent number: D699691Type: GrantFiled: May 13, 2013Date of Patent: February 18, 2014Assignee: POSCO LED Company Ltd.Inventors: Hwi Seok Yang, Chul Ju Kim