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).
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Patent number: 10236451Abstract: Disclosed is a novel benzimidazole compound having excellent hole injection and transport capabilities, light-emitting capabilities, and the like, and an organic electroluminescent device which comprises the benzimidazole compound in one or more organic material layers thereof so as to thereby achieve enhanced characteristics, such as light-emitting efficiency, driving voltage, and lifespan.Type: GrantFiled: March 6, 2013Date of Patent: March 19, 2019Assignee: DOOSAN CORPORATIONInventors: Hyung Chan Bae, Young Mi Beak, Tae Hyung Kim, Ho Cheol Park, Chang Jun Lee, Jin Young Shin
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Patent number: 10230053Abstract: 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: GrantFiled: January 29, 2016Date of Patent: March 12, 2019Assignees: Samsung Display Co., Ltd., Doosan CorporationInventors: 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
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Patent number: 10038146Abstract: The present invention relates to a novel indole-based compound having superior hole injection and transport capabilities, light-emitting capabilities, and the like, and an organic electroluminescent device which comprises the indole-based compound in one or more organic layers thereof so as to thereby achieve improved characteristics, such as light-emitting efficiency, driving voltage, and lifespan characteristics.Type: GrantFiled: December 7, 2012Date of Patent: July 31, 2018Assignee: DOOSAN CORPORATIONInventors: Hoe Moon Kim, Sung Moo Kim, Young Bae Kim, Tae Hyung Kim, Ho Cheol Park, Chang Jun Lee, Young Mi Baek, Jin Yong Shin
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Patent number: 10008675Abstract: 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: GrantFiled: December 16, 2014Date of Patent: June 26, 2018Assignee: DOOSAN CORPORATIONInventors: Young Bae Kim, Hyunjong Jo, Chang Jun Lee, Jinyong Shin, Hoe Moon Kim, Youngmi Beak, Tae Hyung Kim
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Publication number: 20180123482Abstract: A fibrous energy harvesting device having a corrugated structure includes a first fiber layer acting as an electrified body for generation of triboelectric energy, and a second fiber layer acting as an electrified body for generation of triboelectric energy. The first fiber layer is attached to an upper surface of the second fiber layer and has a corrugated structure.Type: ApplicationFiled: June 15, 2017Publication date: May 3, 2018Inventors: Youn Tae KIM, A Young CHOI, Chang Jun LEE, Ji Won PARK, Do Gyun KIM
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Patent number: 9960363Abstract: 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: GrantFiled: December 21, 2015Date of Patent: May 1, 2018Assignee: DOOSAN CORPORATIONInventors: Min-Sik Eum, Ho-Cheol Park, Chang Jun Lee, Tae Hyung Kim, Jiyi Kim, Youngmi Beak
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Patent number: 9905777Abstract: 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: GrantFiled: August 7, 2013Date of Patent: February 27, 2018Assignee: DOOSAN CORPORATIONInventors: Tae Hyung Kim, In Hyuk Lee, Hoe Moon Kim, Jin Yong Shin, Ho Cheol Park, Chang Jun Lee, Young Mi Beak, Eun Jung Lee
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Patent number: 9871261Abstract: 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: GrantFiled: May 20, 2016Date of Patent: January 16, 2018Assignees: 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
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Publication number: 20180013072Abstract: 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: ApplicationFiled: December 21, 2015Publication date: January 11, 2018Applicant: DOOSAN CORPORATIONInventors: Min-Sik EUM, Ho-Cheol PARK, Chang Jun LEE, Tae Hyung KIM, Jiyi KIM, Youngmi BEAK
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Patent number: 9837618Abstract: 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: GrantFiled: August 13, 2013Date of Patent: December 5, 2017Assignee: DOOSAN CORPORATIONInventors: Ho Cheol Park, Hyung Chan Bae, Min Sik Eum, Young Mi Beak, Chang Jun Lee, Jin Yong Shin, Tae Hyung Kim
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Publication number: 20170317609Abstract: 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: ApplicationFiled: December 5, 2016Publication date: November 2, 2017Inventors: Youn Tae KIM, Chang Jun LEE, A Young CHOI, Do Gyun KIM, Ji Won PARK
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Patent number: 9761813Abstract: 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: GrantFiled: March 27, 2013Date of Patent: September 12, 2017Assignee: DOOSAN CORPORATIONInventors: Hoe Moon Kim, Young Mi Beak, Tae Hyung Kim, Ho Cheol Park, Chang Jun Lee, Jin Yong Shin
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Patent number: 9698438Abstract: 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: GrantFiled: December 3, 2014Date of Patent: July 4, 2017Assignees: 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
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Publication number: 20170170498Abstract: 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: ApplicationFiled: May 20, 2016Publication date: June 15, 2017Applicants: 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
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Publication number: 20170026069Abstract: 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: ApplicationFiled: March 4, 2015Publication date: January 26, 2017Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Yong KIM, Eun-young CHO, Mi-jeong SONG, Sang-hun LEE, Sung-hwan PARK, Chang-jun LEE
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Patent number: 9543538Abstract: 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: GrantFiled: October 31, 2014Date of Patent: January 10, 2017Assignees: SAMSUNG DISPLAY CO., LTD., DOSAN CORPORATIONInventors: 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
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Publication number: 20160351825Abstract: 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: ApplicationFiled: December 16, 2014Publication date: December 1, 2016Applicant: DOOSAN CORPORATIONInventors: Young Bae KIM, Hyunjong JO, Chang Jun LEE, Jinyong SHIN, Hoe Moon KIM, Youngmi BEAK, Tae Hyung KIM
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Publication number: 20160322583Abstract: 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: ApplicationFiled: December 26, 2014Publication date: November 3, 2016Applicant: DOOSAN CORPORATIONInventors: Tae Hyung KIM, HoCheol PARK, Young Bae KIM, Chang Jun LEE, Eunjung LEE, Youngmi BEAK
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Patent number: 9475001Abstract: 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: GrantFiled: July 16, 2014Date of Patent: October 25, 2016Assignee: KOREA DISTRICT HEATING CORP.Inventors: Won-Seok Chang, Chang-Jun Lee, Jin-Bae Kim, Nam-Woong Kim
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Publication number: 20160226000Abstract: 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: ApplicationFiled: January 29, 2016Publication date: August 4, 2016Inventors: 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