Patents by Inventor Chang-Jun Lee

Chang-Jun Lee 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: 9871261
    Abstract: A fuel cell stack enclosure includes: a lower housing disposed under a fuel cell stack and having a bottom plate portion provided with a water outlet therein; a sealing cap closing the water outlet from an outside of the lower housing; and an elastic member elastically pulling the sealing cap toward the bottom plate portion of the lower housing.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: January 16, 2018
    Assignees: HYUNDAI MOTOR COMPANY, WOOSHIN INDUSTRIAL CO., LTD.
    Inventors: Jung Han Yu, Young Woo Noh, Jung Do Suh, Duck Whan Kim, Young Bum Kum, Chang Jun Lee, Tae Min Lee, Yong Woo Choi
  • Publication number: 20180013072
    Abstract: The present invention provides an organic electroluminescent element which comprises: an anode; a cathode; and an organic layer interposed between the anode and the cathodes, wherein the organic layer comprises one or more types of layer from the group consisting of a hole-injection layer, hole-transport layer, light-emitting layer, lifetime enhancement layer, electron-transport layer, and electron-injection layer.
    Type: Application
    Filed: December 21, 2015
    Publication date: January 11, 2018
    Applicant: DOOSAN CORPORATION
    Inventors: Min-Sik EUM, Ho-Cheol PARK, Chang Jun LEE, Tae Hyung KIM, Jiyi KIM, Youngmi BEAK
  • Patent number: 9837618
    Abstract: The present invention relates to a novel indole-based compound having excellent hole injection and transport capabilities, light-emitting capabilities, and the like, and an organic electroluminescence device which includes the indole-based compound in one or more organic material layers thereof so as to improve characteristics such as light-emitting efficiency, driving voltage, and lifespan.
    Type: Grant
    Filed: August 13, 2013
    Date of Patent: December 5, 2017
    Assignee: DOOSAN CORPORATION
    Inventors: Ho Cheol Park, Hyung Chan Bae, Min Sik Eum, Young Mi Beak, Chang Jun Lee, Jin Yong Shin, Tae Hyung Kim
  • Publication number: 20170317609
    Abstract: A wearable energy generating apparatus includes a flexible substrate, and a flexible electrode part having a first electrode attached to one surface of the flexible substrate, and coated with a negatively charged material, and a second electrode attached to one surface of the flexible substrate, and spaced apart from the first electrode by a predetermined interval. The negatively charged material coated on a surface of the first electrode may directly contact a human body that is a positively charged object, and the second electrode may directly contact the skin of the human body.
    Type: Application
    Filed: December 5, 2016
    Publication date: November 2, 2017
    Inventors: Youn Tae KIM, Chang Jun LEE, A Young CHOI, Do Gyun KIM, Ji Won PARK
  • Patent number: 9761813
    Abstract: The present invention relates to a novel indole-based compound having excellent hole injection and transport capabilities, light-emission, and other properties, and to an organic electroluminescent device the luminous efficiency, driving voltage, service life, and other characteristics of which are improved due to containing the compound in one or more organic material layers.
    Type: Grant
    Filed: March 27, 2013
    Date of Patent: September 12, 2017
    Assignee: DOOSAN CORPORATION
    Inventors: Hoe Moon Kim, Young Mi Beak, Tae Hyung Kim, Ho Cheol Park, Chang Jun Lee, Jin Yong Shin
  • Patent number: 9698438
    Abstract: A ventilation apparatus includes: a controller that determines whether insulation resistance between a fuel cell stack and an enclosure including the fuel cell stack is equal to or smaller than a preset value, and varies a degree of opening of a valve provided between an inlet provided on one side of the enclosure and an air blower injecting air to an interior of the enclosure through the inlet based on the determination.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: July 4, 2017
    Assignees: Hyundai Motor Company, Wooshin Industrial Co., Ltd.
    Inventors: Jung Han Yu, Jung Do Suh, Young Bum Kum, Duck Whan Kim, Chang Jun Lee, Tae Min Lee, Yong Woo Choi
  • Publication number: 20170170498
    Abstract: A fuel cell stack enclosure includes: a lower housing disposed under a fuel cell stack and having a bottom plate portion provided with a water outlet therein; a sealing cap closing the water outlet from an outside of the lower housing; and an elastic member elastically pulling the sealing cap toward the bottom plate portion of the lower housing.
    Type: Application
    Filed: May 20, 2016
    Publication date: June 15, 2017
    Applicants: HYUNDAI MOTOR COMPANY, Wooshin Industrial Co., Ltd., Wooshin Industrial Co., Ltd.
    Inventors: Jung Han YU, Young Woo NOH, Jung Do SUH, Duck Whan KIM, Young Bum KUM, Chang Jun LEE, Tae Min LEE, Yong Woo CHOI
  • Publication number: 20170026069
    Abstract: Provided are a mobile electronic apparatus, an accessory device for the mobile electronic apparatus, and an electronic apparatus including the accessory device. The mobile electronic apparatus includes: a display unit including a display screen; a cover detector detecting identification (ID) information of a cover when the display screen is covered by the cover; and a processor displaying a user interface (UI) screen corresponding to the cover on the display screen by driving a program corresponding to the ID information of the cover when receiving the ID information of the cover.
    Type: Application
    Filed: March 4, 2015
    Publication date: January 26, 2017
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yong KIM, Eun-young CHO, Mi-jeong SONG, Sang-hun LEE, Sung-hwan PARK, Chang-jun LEE
  • Patent number: 9543538
    Abstract: An organic light-emitting device includes a positive electrode, a negative electrode and at least one organic material layer between the positive electrode and the negative electrode. The at least one organic material layer includes a hole-injecting layer, a hole-transporting layer, an emission layer, an electron-transporting layer, and an electron-injecting layer, and the emission layer includes a host material and a dopant material. In addition, a lifetime enhancement layer including a bipolar compound is positioned between the emission layer and the electron-transporting layer.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: January 10, 2017
    Assignees: SAMSUNG DISPLAY CO., LTD., DOSAN CORPORATION
    Inventors: Seul-Ong Kim, Mi-Kyung Kim, Dong-Woo Shin, Chang-Woong Chu, Tae Hyung Kim, HoCheol Park, Youngmi Beak, Min-Sik Eum, Eunjung Lee, Chang Jun Lee
  • Publication number: 20160351825
    Abstract: The present disclosure relates to a novel compound and an organic electroluminescent element including the same, and the compound according to the present disclosure is used for an organic material layer of the organic electroluminescent element, thereby improving the light emitting efficiency, driving voltage, lifetime, and the like of the organic electroluminescent element.
    Type: Application
    Filed: December 16, 2014
    Publication date: December 1, 2016
    Applicant: DOOSAN CORPORATION
    Inventors: Young Bae KIM, Hyunjong JO, Chang Jun LEE, Jinyong SHIN, Hoe Moon KIM, Youngmi BEAK, Tae Hyung KIM
  • Publication number: 20160322583
    Abstract: The present disclosure provides an organic electroluminescent device including: an anode; a cathode; and one or more organic material layers interposed between the anode and cathode and selected from the group consisting of a hole injection layer, a hole transporting layer, a light emitting layer, an electron transporting layer, and an electron injection layer, and further including a lifetime enhancement layer (LEL) between the light emitting layer and the electron transporting layer.
    Type: Application
    Filed: December 26, 2014
    Publication date: November 3, 2016
    Applicant: DOOSAN CORPORATION
    Inventors: Tae Hyung KIM, HoCheol PARK, Young Bae KIM, Chang Jun LEE, Eunjung LEE, Youngmi BEAK
  • Patent number: 9475001
    Abstract: The present invention relates to an extracting device supplying fixed quantity of exhaust gas for industrial facility, and more particularly, to an extracting device supplying fixed quantity of exhaust gas for industrial facility which supplies a certain amount of exhaust gas by installing a gas supply pipe, in which two blowers are arranged in a line, at a stack and operating each blower in accordance with a predetermined input value.
    Type: Grant
    Filed: July 16, 2014
    Date of Patent: October 25, 2016
    Assignee: KOREA DISTRICT HEATING CORP.
    Inventors: Won-Seok Chang, Chang-Jun Lee, Jin-Bae Kim, Nam-Woong Kim
  • Publication number: 20160226000
    Abstract: An organic light-emitting device includes: a first electrode; a second electrode opposite the first electrode; an emission layer between the first electrode and the second electrode; a hole transport region between the first electrode and the emission layer; and an electron transport region between the emission layer and the second electrode, the electron transport region including an electron control layer, wherein the hole transport region includes at least one compound selected from a first compound represented by Formula 1 and a second compound represented by Formula 2, and the electron control layer includes a third compound represented by Formula 3:
    Type: Application
    Filed: January 29, 2016
    Publication date: August 4, 2016
    Inventors: Myeong-Suk Kim, Sung-Wook Kim, Hwan-Hee Cho, Sang-Woo Lee, Chang-Woong Chu, Tae-Hyung Kim, Ho-Cheol Park, Chang-Jun Lee, Young-Bae Kim, Hoe-Moon Kim
  • Publication number: 20160087293
    Abstract: A ventilation apparatus includes: a controller that determines whether insulation resistance between a fuel cell stack and an enclosure including the fuel cell stack is equal to or smaller than a preset value, and varies a degree of opening of a valve provided between an inlet provided on one side of the enclosure and an air blower injecting air to an interior of the enclosure through the inlet based on the determination.
    Type: Application
    Filed: December 3, 2014
    Publication date: March 24, 2016
    Inventors: Jung Han Yu, Jung Do Suh, Young Bum Kum, Duck Whan Kim, Chang Jun Lee, Tae Min Lee, Yong Woo Choi
  • Publication number: 20150354618
    Abstract: An apparatus for preventing a bolt release includes: a nut hole formed in a body; and an insulating part formed integrally with a bolt coupled to the nut hole and contacting the body, where a plurality of protruded slopes are formed along a circumference of a bonding surface among a plurality of bonding surfaces between the body and the insulating part according to a relative magnitude of hardness or friction coefficient between the body and the insulating part when the bolt is coupled.
    Type: Application
    Filed: October 29, 2014
    Publication date: December 10, 2015
    Inventors: Duck Whan Kim, Jung Han Yu, Yong Woo Choi, Tae Min Lee, Chang Jun Lee
  • Publication number: 20150318483
    Abstract: The present disclosure relates to a novel compound having excellent hole injection capabilities and transport capabilities, light-emitting capabilities, and the like, and an organic electroluminescent device which includes the compound in one or more organic material layers thereof so as to improve characteristics such as light-emitting efficiency, driving voltage, and a service life.
    Type: Application
    Filed: August 13, 2013
    Publication date: November 5, 2015
    Applicant: DOOSAN CORPORATION
    Inventors: Tae Hyung KIM, In Hyuk LEE, Yong Hwan LEE, Jin Yong SHIN, Ho Cheol PARK, Chang Jun LEE, Eun Jung LEE, Young Mi BEAK
  • Patent number: 9118044
    Abstract: A method for manufacturing a manifold for a fuel cell with a multilayer structure by injection-molding individual manifolds, each having welding projections and welding guides, and bonding the injection-molded individual manifolds by vibration welding includes arranging welding projections of an upper individual manifold and welding guides of a lower individual manifold to be engaged with each other while maintaining a uniform gap between each other to bond a plurality of individual manifolds in an up and down stacking structure, pressing the lower individual manifold upward, and applying vibration to the upper individual manifold in the left and right direction, thus bonding the upper and lower individual manifolds. Among the welding projections of the upper individual manifold, a non-horizontal welding projection whose longitudinal direction does not coincide with the vibration direction of the individual manifold has a variable height.
    Type: Grant
    Filed: May 1, 2013
    Date of Patent: August 25, 2015
    Assignees: HYUNDAI MOTOR COMPANY, Kia Motors Corporation, Wooshin Industrial Co., Ltd.
    Inventors: Duck Whan Kim, Sae Hoon Kim, Young Bum Kum, Young Tae Kim, Chang Jun Lee
  • Publication number: 20150236272
    Abstract: The present invention relates to a novel indole-based compound having excellent hole injection and transport capabilities, light-emitting capabilities, and the like, and an organic electroluminescence device which includes the indole-based compound in one or more organic material layers thereof so as to improve characteristics such as light-emitting efficiency, driving voltage, and lifespan.
    Type: Application
    Filed: August 13, 2013
    Publication date: August 20, 2015
    Applicant: DOOSAN CORPORATION
    Inventors: Ho Cheol Park, Hyung Chan Bae, Min Sik Eum, Young Mi Beak, Chang Jun Lee, Jin Yong Shin, Tae Hyung Kim
  • Publication number: 20150236271
    Abstract: The present invention relates to a novel compound and an organic electroluminescence device including the same, and the compound according to the present invention may be used in an organic material layer, preferably a light-emitting layer of an organic electroluminescence device, thereby enhancing the light-emitting efficiency, driving voltage, lifespan, and the like of the organic electroluminescence device.
    Type: Application
    Filed: August 7, 2013
    Publication date: August 20, 2015
    Applicant: DOOSAN CORPORATION
    Inventors: Tae Hyung Kim, In Hyuk Lee, Hoe Moon Kim, Jin Yong Shin, Ho Cheol Park, Chang Jun Lee, Young Mi Beak, Eun Jung Lee
  • Publication number: 20150214490
    Abstract: The present invention relates to a novel indole-based compound having excellent hole injection and transport capabilities, light-emission, and other properties, and to an organic electroluminescent device the luminous efficiency, driving voltage, service life, and other characteristics of which are improved due to containing the compound in one or more organic material layers.
    Type: Application
    Filed: March 27, 2013
    Publication date: July 30, 2015
    Applicant: DOOSAN CORPORATION
    Inventors: Hoe Moon Kim, Young Mi Beak, Tae Hyung Kim, Ho Cheol Park, Chang Jun Lee, Jin Yong Shin