Patents by Inventor Sung Ho Yang
Sung Ho Yang 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: 11972719Abstract: A display device and a method of driving a display device are disclosed.Type: GrantFiled: July 19, 2022Date of Patent: April 30, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Su Min Yang, Seung Ho Park, Sung Hoon Bang, Sang Jae Yeo
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Publication number: 20240125988Abstract: The present invention provides an optical filter for its use. In the present invention, it is possible to provide an optical filter that effectively blocks ultraviolet ray and infrared ray and exhibits high transmittance in visible light. Furthermore, it is possible to provide an optical filter where the transmission characteristics are stably maintained even when an incident angle is changed. Moreover, it is possible to provide an optical filter that does not exhibit problems such as ripple or petal flare.Type: ApplicationFiled: September 28, 2023Publication date: April 18, 2024Inventors: Joon Ho JUNG, Seon Ho YANG, Sung Min HWANG, Choon Woo JI, Tae Jin SONG
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Publication number: 20240125989Abstract: The present invention provides an optical filter for its use. In the present invention, it is possible to provide an optical filter that effectively blocks ultraviolet ray and infrared ray and exhibits high transmittance in visible light. Furthermore, it is possible to provide an optical filter where the transmission characteristics are stably maintained even when an incident angle is changed. Moreover, it is possible to provide an optical filter that does not exhibit problems such as ripple, petal flare, and curl.Type: ApplicationFiled: September 29, 2023Publication date: April 18, 2024Inventors: Joon Ho JUNG, Seon Ho YANG, Sung Min HWANG, Choon Woo JI, Yang Ho KWON
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Publication number: 20240128502Abstract: An embodiment solid electrolyte includes a first compound and a second compound. The first compound is represented by a first chemical formula Li7-aPS6-a(X11-bX2b)a, wherein X1 and X2 are the same or different and each represents F, Cl, Br, or I, and wherein 0<a?2 and 0<b<1, and the second compound is represented by a second chemical formula Li7-cP1-2dMdS6-c-3d(X11-eX2e)c, wherein X1 and X2 are the same or different and each represents F, Cl, Br, or I, wherein M represents Ge, Si, Sn, or any combination thereof, and wherein 0<c?2, 0<d<0.5, and 0<e<1.Type: ApplicationFiled: August 14, 2023Publication date: April 18, 2024Inventors: Sa Heum Kim, Yong Jun Jang, Yong Gu Kim, Sung Man Cho, Sun Ho Choi, Seong Hyeon Choi, Kyu Sung Park, Young Gyoon Ryu, Suk Gi Hong, Pil Sang Yun, Myeong Ju Ha, Hyun Beom Kim, Hwi Chul Yang
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Publication number: 20240125990Abstract: The provided is an optical filter for its use. In the present invention, it is possible to provide an optical filter that effectively blocks ultraviolet ray and infrared ray and exhibits high transmittance in visible light. Furthermore, it is possible to provide an optical filter where the transmission characteristics are stably maintained even when an incident angle is changed. Moreover, it is possible to provide an optical filter that does not exhibit problems such as ripple and petal flare, and thus to provide the optical filter with excellent durability.Type: ApplicationFiled: October 2, 2023Publication date: April 18, 2024Inventors: Joon Ho JUNG, Seon Ho YANG, Sung Min HWANG, Choon Woo JI, Sung Yong MOON
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Publication number: 20240120454Abstract: A display device includes a substrate including a display area and a non-display area, a pixel located in the display area, a pad unit on one side of the non-display area, and a driver connected to the pixel. The pixel includes a first insulating layer, a first light emitting element on the first insulating layer, a second insulating layer on the first light emitting element and exposing one end portion and another end portion of the first light emitting element, a first contact electrode on the second insulating layer and connected to the one end portion of the first light emitting element, and a second contact electrode on the second insulating layer and connected to the other end portion of the first light emitting element. The pad unit includes a pad metal layer, a first pad insulating layer, a second pad insulating layer, and a pad electrode.Type: ApplicationFiled: December 18, 2023Publication date: April 11, 2024Inventors: Jin Yeong KIM, Mi Jin PARK, Sang Ho PARK, Tae Hoon YANG, Sung Jin LEE
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Patent number: 11404708Abstract: A device and a method for controlling start-up of a fuel cell vehicle are provided and include a table in which a time-difference between a hydrogen supply initiating time-point and an air supply initiating time-point is recorded for each cooling water temperature at a fuel cell stack outlet. The air supply initiating time-point is adjusted based on the table during the start-up of the fuel cell vehicle to prevent a cell voltage deviation and a cell reverse voltage of the fuel cell stack. A temperature sensor measures a cooling water temperature of a fuel cell stack and a controller adjusts the air supply initiating time-point based on the cooling water temperature of the fuel cell stack during start-up of a fuel cell vehicle.Type: GrantFiled: November 5, 2020Date of Patent: August 2, 2022Assignees: Hyundai Motor Company, Kia Motors CorporationInventor: Sung Ho Yang
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Patent number: 11351889Abstract: A method for controlling a fuel cell vehicle is provided. The method includes setting a target purge degree of an anode gas and a target opening degree of an air pressure control valve and determining whether a fuel cell stack is in a power generation stop state. When the fuel cell stack is in the power generation stop state, when the anode gas is purged from the anode based on the target purge degree and the target opening degree, whether hydrogen in the anode gas will flow backwards to a stack enclosure is determined. When the hydrogen flows backwards, at least one of the target purge degree and the target opening degree to a level at which the backflow of the hydrogen is prevented is modified, and the anode gas from the anode based on the modified target purge degree and the modified target opening degree is purged.Type: GrantFiled: May 28, 2020Date of Patent: June 7, 2022Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Kang Sik Jeon, Jae Hun Jang, Jae Young Shim, Sung Ho Yang, Young Pin Jin
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Patent number: 11289723Abstract: A control method for a fuel cell system is provided to prevent freezing in an air exhaust system of the fuel cell system. The method prevents freezing in the exhaust system by specifying a vehicle condition in which possibility of freezing is high and operating the fuel cell system based on different vehicle-specific standards. The performs air supercharging control based on an ambient temperature and a temperature of cooling water, air supercharging control by applying weights based on inclinations of a vehicle, and a forced heating logic using a COD heater.Type: GrantFiled: May 7, 2019Date of Patent: March 29, 2022Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Kang Sik Jeon, Jae Hun Jang, Sung Ho Yang, Sung Mun Cho
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Patent number: 11245123Abstract: A shutdown control method of a fuel cell is provided. The method includes applying power to a controller in a shutdown state and determining, by the controller to which the power is applied, a possibility of moisture freezing based on an estimated outdoor temperature or the temperature of a fuel cell stack. A shutdown of the fuel cell is executed by performing moisture removal from the fuel cell stack in response to determining the possibility of moisture freezing after restart.Type: GrantFiled: September 18, 2019Date of Patent: February 8, 2022Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Sung Ho Yang, Jae Hun Jang, Sung Mun Cho, Kang Sik Jeon
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Publication number: 20210376343Abstract: A device and a method for controlling start-up of a fuel cell vehicle are provided and include a table in which a time-difference between a hydrogen supply initiating time-point and an air supply initiating time-point is recorded for each cooling water temperature at a fuel cell stack outlet. The air supply initiating time-point is adjusted based on the table during the start-up of the fuel cell vehicle to prevent a cell voltage deviation and a cell reverse voltage of the fuel cell stack. A temperature sensor measures a cooling water temperature of a fuel cell stack and a controller adjusts the air supply initiating time-point based on the cooling water temperature of the fuel cell stack during start-up of a fuel cell vehicle.Type: ApplicationFiled: November 5, 2020Publication date: December 2, 2021Inventor: Sung Ho Yang
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Patent number: 10964962Abstract: A method for diagnosing a water-containing state of a fuel cell stack includes steps of: applying an alternating current (AC) signal having a predetermined frequency to the fuel cell stack to calculate each of an electrolyte membrane impedance, an anode impedance, and a cathode impedance from an output voltage and an output current of the fuel cell stack corresponding to the AC signal; and diagnosing the water-containing state of the fuel cell stack on the basis of the electrolyte membrane impedance, the anode impedance, and the cathode impedance.Type: GrantFiled: November 27, 2017Date of Patent: March 30, 2021Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Sang Bok Won, Ki Chang Kim, Sung Ho Yang, Young Pin Jin
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Patent number: 10793010Abstract: A control method for a motor-driven vehicle is provided. The method includes calculating a correction torque of a drive motor through a difference between speeds of wheels or a variance rate of the difference between speeds of the wheels and comparing a calculated correction torque with a current required torque of the drive motor. When the calculated correction torque is greater than the current required torque, the drive motor is operated based on the current required torque. When the calculated correction torque is less than or equal to the current required torque, the drive motor is operated based on the calculated correction torque, or the required torque of the drive motor is corrected to correspond to the calculated correction torque and the drive motor is operated based on a corrected required torque of the drive motor.Type: GrantFiled: May 10, 2018Date of Patent: October 6, 2020Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Jae Won Jung, Kang Sik Jeon, Seung Yoon Lee, Sung Ho Yang, Jae Young Shim, Min Gon Kim
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Publication number: 20200313210Abstract: A shutdown control method of a fuel cell is provided. The method includes applying power to a controller in a shutdown state and determining, by the controller to which the power is applied, a possibility of moisture freezing based on an estimated outdoor temperature or the temperature of a fuel cell stack. A shutdown of the fuel cell is executed by performing moisture removal from the fuel cell stack in response to determining the possibility of moisture freezing after restart.Type: ApplicationFiled: September 18, 2019Publication date: October 1, 2020Inventors: Sung Ho Yang, Jae Hun Jang, Sung Mun Cho, Kang Sik Jeon
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Publication number: 20200290466Abstract: A method for controlling a fuel cell vehicle is provided. The method includes setting a target purge degree of an anode gas and a target opening degree of an air pressure control valve and determining whether a fuel cell stack is in a power generation stop state. When the fuel cell stack is in the power generation stop state, when the anode gas is purged from the anode based on the target purge degree and the target opening degree, whether hydrogen in the anode gas will flow backwards to a stack enclosure is determined. When the hydrogen flows backwards, at least one of the target purge degree and the target opening degree to a level at which the backflow of the hydrogen is prevented is modified, and the anode gas from the anode based on the modified target purge degree and the modified target opening degree is purged.Type: ApplicationFiled: May 28, 2020Publication date: September 17, 2020Inventors: Kang Sik Jeon, Jae Hun Jang, Jae Young Shim, Sung Ho Yang, Young Pin Jin
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Patent number: 10703213Abstract: A method for controlling a fuel cell vehicle is provided. The method includes setting a target purge degree of an anode gas and a target opening degree of an air pressure control valve and determining whether a fuel cell stack is in a power generation stop state. When the fuel cell stack is in the power generation stop state, when the anode gas is purged from the anode based on the target purge degree and the target opening degree, whether hydrogen in the anode gas will flow backwards to a stack enclosure is determined. When the hydrogen flows backwards, at least one of the target purge degree and the target opening degree to a level at which the backflow of the hydrogen is prevented is modified, and the anode gas from the anode based on the modified target purge degree and the modified target opening degree is purged.Type: GrantFiled: November 20, 2017Date of Patent: July 7, 2020Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Kang Sik Jeon, Jae Hun Jang, Jae Young Shim, Sung Ho Yang, Young Pin Jin
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Publication number: 20200194812Abstract: A control method for a fuel cell system is provided to prevent freezing in an air exhaust system of the fuel cell system. The method prevents freezing in the exhaust system by specifying a vehicle condition in which possibility of freezing is high and operating the fuel cell system based on different vehicle-specific standards. The performs air supercharging control based on an ambient temperature and a temperature of cooling water, air supercharging control by applying weights based on inclinations of a vehicle, and a forced heating logic using a COD heater.Type: ApplicationFiled: May 7, 2019Publication date: June 18, 2020Inventors: Kang Sik Jeon, Jae Hun Jang, Sung Ho Yang, Sung Mun Cho
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Patent number: 10647219Abstract: A method for controlling a fuel cell system includes steps of: (a) determining whether hydrogen (H2) is detected in an interior space of a stack enclosure in which a fuel cell stack is accommodated; (b) stopping power generation that is performed using the stack when it is determined in step (a) that the hydrogen is detected; (c) opening a purge valve to discharge gases circulating in an anode through the purge valve, and opening a condensate discharge valve to discharge condensate contained in a water trap through the condensate discharge valve; and (d) determining whether the hydrogen discharged through at least one of the purge valve and the condensate discharge valve in step (c) flows back to the interior space based on H2 concentration in the interior space.Type: GrantFiled: December 1, 2017Date of Patent: May 12, 2020Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Jae Young Shim, Sung Ho Yang, Jae Hun Jang, Hyo Jin Park, Kang Sik Jeon, Young Pin Jin
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Patent number: 10367216Abstract: A method of controlling energy supply in a fuel cell vehicle includes storing an output current of a fuel cell as a pre-limited current when a cell voltage ratio reaches a minimum cell voltage ratio, setting a limited output current of the fuel cell as the pre-limited current when the cell voltage ratio reaches a hazard cell voltage ratio, connecting first and second high-voltage batteries to a main bus terminal in parallel when the cell voltage ratio reaches the hazard cell voltage ratio, and outputting a supplementary current from the second high-voltage battery by an insufficient amount of the output current of the fuel cell for the pre-limited current, and a system for performing the same.Type: GrantFiled: June 14, 2017Date of Patent: July 30, 2019Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Young Pin Jin, Sung Ho Yang, Jae Young Shim, Kang Sik Jeon, Ji Hwan Yu
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Publication number: 20190160966Abstract: A control method for a motor-driven vehicle is provided. The method includes calculating a correction torque of a drive motor through a difference between speeds of wheels or a variance rate of the difference between speeds of the wheels and comparing a calculated correction torque with a current required torque of the drive motor. When the calculated correction torque is greater than the current required torque, the drive motor is operated based on the current required torque. When the calculated correction torque is less than or equal to the current required torque, the drive motor is operated based on the calculated correction torque, or the required torque of the drive motor is corrected to correspond to the calculated correction torque and the drive motor is operated based on a corrected required torque of the drive motor.Type: ApplicationFiled: May 10, 2018Publication date: May 30, 2019Inventors: Jae Won Jung, Kang Sik Jeon, Seung Yoon Lee, Sung Ho Yang, Jae Young Shim, Min Gon Kim