Patents by Inventor Doo-Hee Cho
Doo-Hee Cho 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: 20240114777Abstract: The present disclosure relates to a plurality of host materials, an organic electroluminescent compound, and an organic electroluminescent device comprising the same. By comprising a specific combination of compounds according to the present disclosure as a plurality of host materials or by comprising the compound according to the present disclosure, it is possible to produce an organic electroluminescent device having lower driving voltage, higher luminous efficiency, and/or longer lifetime properties compared to the conventional organic electroluminescent devices.Type: ApplicationFiled: July 20, 2023Publication date: April 4, 2024Inventors: So-Young JUNG, Hyo-Nim SHIN, Doo-Hyeon MOON, Sang-Hee CHO, Hyun-Ju KANG
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Patent number: 11950506Abstract: The present disclosure relates to a plurality of host materials comprising a first host material comprising a compound represented by formula 1, and a second host material comprising a compound represented by formula 2, and an organic electroluminescent device comprising the same. By comprising a specific combination of compounds as host materials, it is possible to provide an organic electroluminescent device having lower driving voltage, higher luminous efficiency, higher power efficiency, and/or superior lifespan characteristics compared to conventional organic electroluminescent devices.Type: GrantFiled: October 20, 2020Date of Patent: April 2, 2024Assignee: Rohm and Haas Electronic Materials Korea Ltd.Inventors: So-Young Jung, Su-Hyun Lee, Mi-Ja Lee, Sang-Hee Cho, Doo-Hyeon Moon
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Patent number: 11873232Abstract: Provided is a method for producing hexagonal tungsten oxide, the method including preparing an alkaline solvent having a pH of 8 to 9, which contains at least one of water or alcohol, adding tungsten chloride to the alkaline solvent to form a first reaction solution, adding an additive to the first reaction solution to form a second reaction solution, and adding strong acid to the second reaction solution to form nanoparticles. The additive includes any one of an amine compound having 1 to 8 carbon atoms or an aliphatic hydrocarbon derivative having 10 or more carbon atoms.Type: GrantFiled: September 16, 2021Date of Patent: January 16, 2024Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Hojun Ryu, Doo-Hee Cho, Juhee Song, Chil Seong Ah, Sang Hoon Cheon
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Publication number: 20230096082Abstract: Disclosed are an electrochromic device including graphene electrodes and a method for making the same. An electrochromic device including graphene electrodes according to various example embodiments includes a first multilayer thin film structure connected to a first electrode of an external power source, and including a first graphene layer and a first metal protective layer formed on the first graphene layer to protect the first graphene layer from oxygen, a second multilayer thin film structure connected to a second electrode of the external power source, and including a second graphene layer and a second metal protective layer formed on the second graphene layer to protect the second graphene layer from oxygen, and an electrolyte charged between the first multilayer thin film structure and the second multilayer thin film structure.Type: ApplicationFiled: February 11, 2022Publication date: March 30, 2023Inventors: Doo-Hee CHO, Tae-Youb KIM, Hojun RYU, Juhee SONG, Chil Seong AH
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Patent number: 11550198Abstract: Provided is an electrochromic display device including: a first substrate; a second substrate on the first substrate; an electrolyte layer disposed between the first substrate and the second substrate; a first transparent electrode provided between the electrolyte layer and the first substrate; second transparent electrodes provided between the electrolyte layer and the second substrate; a first electrochromic layer provided between the first transparent electrode and the electrolyte layer; and a second electrochromic layer provided between the second transparent electrodes and the electrolyte layer, wherein the second transparent electrodes each extend in a first direction and be disposed apart from each other in a second direction perpendicular to the first direction, the second electrochromic layer extends between the second transparent electrodes and contacts a lower surface of the second substrate, the first electrochromic layer includes an inorganic electrochromic material, and the second electrochromicType: GrantFiled: November 4, 2021Date of Patent: January 10, 2023Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Chil Seong Ah, Juhee Song, Hojun Ryu, Tae-Youb Kim, Sang Hoon Cheon, Doo-Hee Cho, Seong-Mok Cho, Chi-Sun Hwang
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Publication number: 20220270966Abstract: An integrated circuit includes first power supply lines which extend in a first direction and are spaced apart from each other in a second direction different from the first direction. A second power supply line extends in the first direction and is placed between the first power supply lines adjacent to each other in the second direction. A decoupling filler cell is placed between the first power supply lines adjacent to each other in the second direction. The decoupling filler cell includes a decoupling capacitor region formed by a gate electrode and a decap transistor including a first source/drain region of a first conductive type. The gate electrode is connected to the second power supply line, the first source/drain region is connected to the first power supply lines, and the second power supply line passes through the decoupling capacitor region.Type: ApplicationFiled: October 27, 2021Publication date: August 25, 2022Inventors: SHIN WOO KIM, CHANG BEOM KIM, JAE HA LEE, DOO HEE CHO, JAE WAN CHOI
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Patent number: 11424299Abstract: Provided is a pressure sensitive display device including a sensing substrate, a reaction substrate provided on the sensing substrate, and spacers provided between the sensing substrate and the reaction substrate to space the sensing substrate apart from the reaction substrate. Here, the sensing substrate includes a flexible substrate and a touch electrode provided on one surface of the flexible substrate, which faces the reaction substrate. The reaction substrate includes a transparent substrate, a transparent electrode provided on one surface of the transparent substrate, which faces the sensing substrate, and a light emitting layer disposed on the transparent electrode.Type: GrantFiled: April 7, 2020Date of Patent: August 23, 2022Assignee: Electronics and Telecommunications Research InstituteInventors: Ji-Young Oh, Seung Youl Kang, Seongdeok Ahn, Jeong Ik Lee, Chi-Sun Hwang, Byoung-Hwa Kwon, Tae-Youb Kim, Jeho Na, Sooji Nam, Jaehyun Moon, Young Sam Park, Chan Woo Park, Doo-Hee Cho, Chul Woong Joo, Jae-Eun Pi
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Publication number: 20220179272Abstract: Provided is an electrochromic display device including: a first substrate; a second substrate on the first substrate; an electrolyte layer disposed between the first substrate and the second substrate; a first transparent electrode provided between the electrolyte layer and the first substrate; second transparent electrodes provided between the electrolyte layer and the second substrate; a first electrochromic layer provided between the first transparent electrode and the electrolyte layer; and a second electrochromic layer provided between the second transparent electrodes and the electrolyte layer, wherein the second transparent electrodes each extend in a first direction and be disposed apart from each other in a second direction perpendicular to the first direction, the second electrochromic layer extends between the second transparent electrodes and contacts a lower surface of the second substrate, the first electrochromic layer includes an inorganic electrochromic material, and the second electrochromicType: ApplicationFiled: November 4, 2021Publication date: June 9, 2022Inventors: Chil Seong AH, Juhee SONG, Hojun RYU, Tae-Youb KIM, Sang Hoon CHEON, Doo-Hee CHO, Seong-Mok CHO, Chi-Sun HWANG
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Publication number: 20220169531Abstract: Provided is a method for producing hexagonal tungsten oxide, the method including preparing an alkaline solvent having a pH of 8 to 9, which contains at least one of water or alcohol, adding tungsten chloride to the alkaline solvent to form a first reaction solution, adding an additive to the first reaction solution to form a second reaction solution, and adding strong acid to the second reaction solution to form nanoparticles. The additive includes any one of an amine compound having 1 to 8 carbon atoms or an aliphatic hydrocarbon derivative having 10 or more carbon atoms.Type: ApplicationFiled: September 16, 2021Publication date: June 2, 2022Inventors: Hojun RYU, Doo-Hee CHO, Juhee SONG, Chil Seong AH, Sang Hoon CHEON
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Publication number: 20220137436Abstract: Provided is a nano structure for controlling optical properties of an optical device. The nano structure includes a substrate, a surface modification layer provided on the substrate to modify surface energy of the substrate, and a capping layer provided on the surface modification layer. The capping layer includes a convex portion having a convex profile away from the surface modification layer and a concave portion that is in contact with the surface modification layer.Type: ApplicationFiled: October 1, 2021Publication date: May 5, 2022Inventors: Doo-Hee CHO, Byoung-Hwa KWON, YOUNG SAM PARK, Jin Wook SHIN, Nam Sung CHO, Hyunsu CHO
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Patent number: 11278227Abstract: Provided is a biometric information measurement method. The method includes providing a bio-material including at least one of cells and tissues, contacting a first electrode and a second electrode with the bio-material and applying a first electrical signal and a second electrical signal to the bio-material, sensing a third electrical signal from the bio-material, and analyzing an oxygen concentration in the bio-material from the third electrical signal.Type: GrantFiled: September 10, 2019Date of Patent: March 22, 2022Assignee: Electronics and Telecommunications Research InstituteInventors: Young Sam Park, Jaehyun Moon, Seongdeok Ahn, Byoung Gon Yu, Jeong Ik Lee, Nam Sung Cho, Doo-Hee Cho
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Patent number: 11188704Abstract: A method of designing an integrated circuit includes receiving input data defining the integrated circuit, receiving information from a standard cell library including a plurality of standard cells, receiving information from a modified cell library including at least one modified cell having a same function as a corresponding standard cell among the plurality of standard cells and having a higher routability than the corresponding standard cell and generating output data by performing placement and routing in response to the input data, the information from the standard cell library and the information from the modified cell library.Type: GrantFiled: June 29, 2020Date of Patent: November 30, 2021Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jin-Tae Kim, Jung-Ho Do, Tae-Joong Song, Doo-Hee Cho, Seung-Young Lee
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Patent number: 11183652Abstract: Provided are a flexible electronic device including device units, a first etching preventing layer provided on the device units, a conductive line provided on the first etching preventing layer and electrically connected to the device units, a flexible substrate covering the conductive line on the first etching preventing layer and the conductive line, a trench separating the device units and exposing a portion of a bottom surface of the first etching preventing layer and a side surface of each of the device units, and a flexible protective layer conformally covering a bottom surface of each of the device units and an inside of the trench, wherein each of the device units includes a protective substrate, driving parts provided on the protective substrate, and a first encapsulation layer configured to cover the driving parts, and a manufacturing method thereof.Type: GrantFiled: February 20, 2020Date of Patent: November 23, 2021Assignee: Electronics and Telecommunications Research InstituteInventors: Doo-Hee Cho, Young-Sam Park, Byoung Gon Yu
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Patent number: 10882010Abstract: The present disclosure relates to a technique for manufacturing a humidifying membrane including a hydrophobic thin film-coating layer having a nano-sized crack morphology pattern on the surface of an aromatic hydrocarbon-based polymer ion exchange membrane and applying the membrane to a reverse electrodialysis process. The humidifying membrane including a hydrophobic thin film-coating layer having a nano-sized crack morphology pattern on the surface of an aromatic hydrocarbon-based polymer ion exchange membrane, manufactured according to the present disclosure, embodies a low bulk resistance of the ion exchange membrane and significantly improves ion selectivity, thereby overcoming the trade-off relationship between membrane resistance and ion selectivity, and thus may be commercially available as an anion and cation exchange membrane of a reverse electrodialysis device.Type: GrantFiled: April 18, 2017Date of Patent: January 5, 2021Assignee: Industry-University Cooperation Foundation Hanyang UniversityInventors: Young Moo Lee, Chi Hoon Park, So Young Lee, Doo Sung Hwang, Dongwon Shin, Doo Hee Cho, Kang Hyuck Lee
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Publication number: 20200350506Abstract: Provided are a flexible electronic device including device units, a first etching preventing layer provided on the device units, a conductive line provided on the first etching preventing layer and electrically connected to the device units, a flexible substrate covering the conductive line on the first etching preventing layer and the conductive line, a trench separating the device units and exposing a portion of a bottom surface of the first etching preventing layer and a side surface of each of the device units, and a flexible protective layer conformally covering a bottom surface of each of the device units and an inside of the trench, wherein each of the device units includes a protective substrate, driving parts provided on the protective substrate, and a first encapsulation layer configured to cover the driving parts, and a manufacturing method thereof.Type: ApplicationFiled: February 20, 2020Publication date: November 5, 2020Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Doo-Hee CHO, YOUNG-SAM PARK, Byoung Gon YU
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Publication number: 20200334407Abstract: A method of designing an integrated circuit includes receiving input data defining the integrated circuit, receiving information from a standard cell library including a plurality of standard cells, receiving information from a modified cell library including at least one modified cell having a same function as a corresponding standard cell among the plurality of standard cells and having a higher routability than the corresponding standard cell and generating output data by performing placement and routing in response to the input data, the information from the standard cell library and the information from the modified cell library.Type: ApplicationFiled: June 29, 2020Publication date: October 22, 2020Inventors: JIN-TAE KIM, JUNG-HO DO, TAE-JOONG SONG, DOO-HEE CHO, SEUNG-YOUNG LEE
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Publication number: 20200321403Abstract: Provided is a pressure sensitive display device including a sensing substrate, a reaction substrate provided on the sensing substrate, and spacers provided between the sensing substrate and the reaction substrate to space the sensing substrate apart from the reaction substrate. Here, the sensing substrate includes a flexible substrate and a touch electrode provided on one surface of the flexible substrate, which faces the reaction substrate. The reaction substrate includes a transparent substrate, a transparent electrode provided on one surface of the transparent substrate, which faces the sensing substrate, and a light emitting layer disposed on the transparent electrode.Type: ApplicationFiled: April 7, 2020Publication date: October 8, 2020Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Ji-Young OH, Seung Youl KANG, Seongdeok AHN, Jeong Ik LEE, Chi-Sun HWANG, Byoung-Hwa KWON, Tae-Youb KIM, Jeho NA, Sooji NAM, Jaehyun MOON, Young Sam PARK, Chan Woo PARK, Doo-Hee CHO, Chul Woong JOO, Jae-Eun PI
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Patent number: 10789448Abstract: The inventive concept provides an organic electronic device and a method of fabricating the same. The organic electronic device includes a flexible substrate configured to include a first region and a second region which are laterally spaced apart from each other, an organic light-emitting diode disposed in the first region of the flexible substrate, and a photodetector disposed in the second region of the flexible substrate, wherein the organic light-emitting diode and the photodetector are disposed on the same plane.Type: GrantFiled: July 13, 2018Date of Patent: September 29, 2020Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Young Sam Park, Jaehyun Moon, Seongdeok Ahn, Seung Youl Kang, Sung Haeng Cho, Byoung Gon Yu, Jeong Ik Lee, Jonghee Lee, Nam Sung Cho, Doo-Hee Cho, Hyunsu Cho
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Patent number: 10726186Abstract: A method of designing an integrated circuit includes receiving input data defining the integrated circuit, receiving information from a standard cell library including a plurality of standard cells, receiving information from a modified cell library including at least one modified cell having a same function as a corresponding standard cell among the plurality of standard cells and having a higher routability than the corresponding standard cell and generating output data by performing placement and routing in response to the input data, the information from the standard cell library and the information from the modified cell library.Type: GrantFiled: May 3, 2017Date of Patent: July 28, 2020Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jin-Tae Kim, Jung-Ho Do, Tae-Joong Song, Doo-Hee Cho, Seung-Young Lee
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Publication number: 20200107739Abstract: Provided is a biometric information measurement method. The method includes providing a bio-material including at least one of cells and tissues, contacting a first electrode and a second electrode with the bio-material and applying a first electrical signal and a second electrical signal to the bio-material, sensing a third electrical signal from the bio-material, and analyzing an oxygen concentration in the bio-material from the third electrical signal.Type: ApplicationFiled: September 10, 2019Publication date: April 9, 2020Applicant: Electronics and Telecommunications Research InstituteInventors: YOUNG SAM PARK, Jaehyun MOON, Seongdeok AHN, Byoung Gon YU, JEONG IK LEE, Nam Sung CHO, Doo-Hee CHO