Patents by Inventor Woo-Seok Jang
Woo-Seok Jang 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: 11976396Abstract: The present disclosure relates to a method for producing a nonwoven fabric that improves filtration performance when applied as a filter material. By adjusting the modification ratio of the Y-shaped cross-section of polyester filaments constituting the nonwoven fabric, when applied to a filter by increasing a specific surface area of the nonwoven fabric, it increases the collection amount of the materials to be filtered and maintains a low differential pressure, thus enabling long-term use.Type: GrantFiled: June 11, 2019Date of Patent: May 7, 2024Assignee: KOLON INDUSTRIES, INC.Inventors: Woo-seok Choi, Min-ho Lee, Hee-jung Cho, Young-shin Park, Jung-soon Jang
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Patent number: 11970674Abstract: The present disclosure relates to a method for preparing a non-woven fabric which improves impregnation and release properties of a fabric softener in the non-woven fabric in order to apply the non-woven fabric to a dryer sheet (sheet-type fabric softener). When increasing porosity and specific surface area in a non-woven fabric made of two-component blended polyester long fibers, impregnation and release rate of a fabric softener are improved even when the non-woven fabric is lightened, making it possible to apply the non-woven fabric to a dryer sheet.Type: GrantFiled: December 19, 2019Date of Patent: April 30, 2024Assignee: KOLON INDUSTRIES, INC.Inventors: Young-shin Park, Min-ho Lee, Jung-soon Jang, Hee-jung Cho, Woo-seok Choi
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Publication number: 20230197414Abstract: Provided are a substrate treating apparatus and a method thereof that can improve pattern roughness when an etching process is performed for a substrate. The substrate treating method comprises: inserting a substrate into a substrate treating apparatus; injecting a first process gas into the substrate treating apparatus and treating the substrate to a first plasma using the first process gas; and injecting a second process gas into the substrate treating apparatus and treating the substrate to a second plasma using the second process gas, wherein at least some components of the second process gas differ from those of the first process gas.Type: ApplicationFiled: December 15, 2022Publication date: June 22, 2023Inventors: Min Jung CHOI, Ban Seok YOU, Woo Seok JANG, Ki Duk TAK
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Publication number: 20230160061Abstract: A method of processing a substrate is provided. The method processes a substrate by using a substrate processing apparatus including a chamber, a shower head unit for supplying a cleaning gas into the chamber, a first electrode disposed on an upper portion of the shower head unit, a support unit for supporting the substrate, and a second electrode disposed inside the support unit, the method including supplying the cleaning gas into the chamber, and supplying a voltage of a first magnitude to the first electrode and supplying a voltage of a second magnitude greater than the first magnitude to the second electrode.Type: ApplicationFiled: August 12, 2022Publication date: May 25, 2023Inventors: Ban Seok YOU, Woo Seok Jang, Min Jung Choi, Ki Duk Tak
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Patent number: 11482653Abstract: A light emitting diode apparatus is provided. The light emitting diode apparatus includes a wavelength conversion layer, a light emitting diode layer, a light transmission layer, and a sheath layer. The wavelength conversion layer has a first refractive index. The light emitting diode layer includes a base layer arranged on the wavelength conversion layer, and a light emitting structure layer arranged on the base layer. The light transmission layer is arranged on the wavelength conversion layer, surrounds a sidewall of the light emitting diode layer and contacts the sidewall of the light emitting diode layer, and has a second refractive index. The sheath layer is arranged to cover the light emitting diode layer and the light transmission layer, and has a third refractive index less than the second refractive index.Type: GrantFiled: January 31, 2019Date of Patent: October 25, 2022Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Dong Kuk Lee, Dae Young Lee, Moon Sub Kim, Sung Jin Ahn, Seung Hwan Lee, Dong Kyun Yim, Woo Seok Jang
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Patent number: 11219944Abstract: A casting method for forming a fastening part on an inclined plane of a casting may include mounting a plug unit including a casting plug and a screw thread insert combined with the casting plug on a movable mold or a fixed mold; performing casting by moving and combining the movable mold with the fixed mold and injecting a molten metal into a cavity formed between the movable mold and the fixed mold; performing mold opening after the casting; and separating the casting plug from the screw thread insert, wherein when the plug unit is mounted on the mold, the screw thread insert is deployed in the cavity, and a mold plane on which the casting plug is mounted forms an inclined plane having an acute angle against a horizontal plane that is parallel to a movement direction of the movable mold.Type: GrantFiled: April 6, 2020Date of Patent: January 11, 2022Assignees: Hyundai Motor Company, Kia Motors Corporation, Jinhap Bollhoff Ltd.Inventors: Cheol-Ung Lee, Yoon-Ki Lee, Jin-Yong Kim, Jae-Young An, Woo-Seok Jang
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Publication number: 20210213516Abstract: A casting method for forming a fastening part on an inclined plane of a casting may include mounting a plug unit including a casting plug and a screw thread insert combined with the casting plug on a movable mold or a fixed mold; performing casting by moving and combining the movable mold with the fixed mold and injecting a molten metal into a cavity formed between the movable mold and the fixed mold; performing mold opening after the casting; and separating the casting plug from the screw thread insert, wherein when the plug unit is mounted on the mold, the screw thread insert is deployed in the cavity, and a mold plane on which the casting plug is mounted forms an inclined plane having an acute angle against a horizontal plane that is parallel to a movement direction of the movable mold.Type: ApplicationFiled: April 6, 2020Publication date: July 15, 2021Inventors: Cheol-Ung Lee, Yoon-Ki Lee, Jin-Yong Kim, Jae-Young An, Woo-Seok Jang
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Patent number: 11017702Abstract: A display device is provided including a display unit configured to display an image; a processor that supplies a control signal for controlling a driving of the display unit; a detection circuit that detects whether the control signal is abnormal based on a frequency of the control signal measured in a frame unit; and a power supply that supplies driving power to the display unit, where the driving power is blocked from being supplied to the display unit when the control signal is detected to be abnormal. The detection circuit detects whether the control signal is abnormal based on an average frequency of the control signal for N successive frames, where N is a natural number of 2 or more.Type: GrantFiled: December 16, 2019Date of Patent: May 25, 2021Assignee: SAMSUNG DISPLAY CO., LTD.Inventor: Woo Seok Jang
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Patent number: 10978021Abstract: A portable terminal is provided, which includes a display, and a processor configured to receive a first user input for controlling a brightness of the display, control the display to display an indicator at a first position based on the first user input and control the brightness of the display based on a first brightness step corresponding to the first position, receive a second user input for controlling the brightness of the display, and control the display to display the indicator at a second position which is different from the first position based on the second user input, without displaying the indicator at any intermediate position between the first position and the second position and change the brightness of the display based on a second brightness step corresponding to the second position. A shape and size of the indicator displayed at the first position corresponds to the shape and the size of the indicator displayed at the second position.Type: GrantFiled: January 22, 2019Date of Patent: April 13, 2021Inventors: Woo-Seok Jang, Jin-Sung Park, Hyong-Sog Oh, Ji-Hwa Kim
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Patent number: 10785676Abstract: An electronic device is disclosed. The electronic device includes a memory configured to store processing rules of network traffic and a processor configured to determine an order where the network traffic is processed, depending on a rule to be applied, the rule corresponding to the at least one of app information of an application corresponding to at least one process which causes the network traffic, device state information, or network packet information among the processing rules.Type: GrantFiled: November 16, 2017Date of Patent: September 22, 2020Assignee: Samsung Electronics Co., LtdInventors: Geum Hwan Yu, Tae Gu Kim, Woo Seok Jang, Joon Young Heo, Gyu Joon Park, Won Hee Seo, Woo Kwang Lee, Min Jung Kim
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Publication number: 20200243045Abstract: Disclosed is a method for controlling a backlight of a portable terminal, which includes from a memory previously stored backlight brightness values that correspond to a backlight steps, retrieving a stored brightness value corresponding to one of a plurality of brightness steps selected by a user, regulating the brightness of the portable terminal according to the retrieved brightness value, and displaying the currently selected brightness step on the display unit, wherein the brightness steps correspond to incremental levels of brightness.Type: ApplicationFiled: April 13, 2020Publication date: July 30, 2020Inventors: Woo-Seok JANG, Jin-Sung PARK, Hyong-sog OH, Ji-Hwa KIM
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Patent number: 10727291Abstract: An organic light-emitting display panel includes a plurality of pixel columns, a plurality of first signal lines, and a plurality of second signal lines. Each of the pixel columns includes a plurality of organic light-emitting pixels. The first signal lines are arranged to correspond to the pixel columns. Each of the first signal lines connected to the organic light-emitting pixels of a corresponding pixel column. The second signal lines are respectively connected to the first signal lines and provide a first power supply voltage to corresponding ones of the first signal lines. Each of the second signal lines is connected substantially to a center portion of the corresponding first signal line.Type: GrantFiled: October 19, 2018Date of Patent: July 28, 2020Assignee: Samsung Display Co., Ltd.Inventor: Woo-seok Jang
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Publication number: 20200234620Abstract: A display device is provided including a display unit configured to display an image; a processor that supplies a control signal for controlling a driving of the display unit; a detection circuit that detects whether the control signal is abnormal based on a frequency of the control signal measured in a frame unit; and a power supply that supplies driving power to the display unit, where the driving power is blocked from being supplied to the display unit when the control signal is detected to be abnormal. The detection circuit detects whether the control signal is abnormal based on an average frequency of the control signal for N successive frames, where N is a natural number of 2 or more.Type: ApplicationFiled: December 16, 2019Publication date: July 23, 2020Inventor: WOO SEOK JANG
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Publication number: 20190371988Abstract: A light emitting diode apparatus is provided. The light emitting diode apparatus includes a wavelength conversion layer, a light emitting diode layer, a light transmission layer, and a sheath layer. The wavelength conversion layer has a first refractive index. The light emitting diode layer includes a base layer arranged on the wavelength conversion layer, and a light emitting structure layer arranged on the base layer. The light transmission layer is arranged on the wavelength conversion layer, surrounds a sidewall of the light emitting diode layer and contacts the sidewall of the light emitting diode layer, and has a second refractive index. The sheath layer is arranged to cover the light emitting diode layer and the light transmission layer, and has a third refractive index less than the second refractive index.Type: ApplicationFiled: January 31, 2019Publication date: December 5, 2019Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Dong Kuk LEE, Dae Young LEE, Moon Sub KIM, Sung Jin AHN, Seung Hwan LEE, Dong Kyun YIM, Woo Seok JANG
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Patent number: 10354568Abstract: A display device includes a display panel including a plurality of pixels, a power supply transmitting driving power to the pixels via a power line and stopping transmission of the driving power in response to a crack signal, a panel driver provides a driving signal to the pixels, the driving signal for displaying a black image during a non-emission period of each frame period and displaying a valid image during an emission period of each frame period, and a crack detector senses a current flowing through the power line and conditionally generate the crack signal according to values of the current sensed over M successive frame periods, where M is an integer greater than 1.Type: GrantFiled: January 20, 2017Date of Patent: July 16, 2019Assignee: Samsung Display Co., Ltd.Inventors: Il-Hun Jeong, Woo-Seok Jang
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Publication number: 20190156787Abstract: A portable terminal is provided, which includes a display, and a processor configured to receive a first user input for controlling a brightness of the display, control the display to display an indicator at a first position based on the first user input and control the brightness of the display based on a first brightness step corresponding to the first position, receive a second user input for controlling the brightness of the display, and control the display to display the indicator at a second position which is different from the first position based on the second user input, without displaying the indicator at any intermediate position between the first position and the second position and change the brightness of the display based on a second brightness step corresponding to the second position. A shape and size of the indicator displayed at the first position corresponds to the shape and the size of the indicator displayed at the second position.Type: ApplicationFiled: January 22, 2019Publication date: May 23, 2019Inventors: Woo-Seok JANG, Jin-Sung PARK, Hyong-Sog OH, Ji-Hwa KIM
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Publication number: 20190051719Abstract: An organic light-emitting display panel includes a plurality of pixel columns, a plurality of first signal lines, and a plurality of second signal lines. Each of the pixel columns includes a plurality of organic light-emitting pixels. The first signal lines are arranged to correspond to the pixel columns. Each of the first signal lines connected to the organic light-emitting pixels of a corresponding pixel column. The second signal lines are respectively connected to the first signal lines and provide a first power supply voltage to corresponding ones of the first signal lines. Each of the second signal lines is connected substantially to a center portion of the corresponding first signal line.Type: ApplicationFiled: October 19, 2018Publication date: February 14, 2019Inventor: Woo-seok JANG
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Patent number: 10186233Abstract: A portable terminal is provided including a touch screen display; and a processor configured to control the touch screen display to display a brightness step selection interface for selecting a brightness step, receive, via the touch screen display, a first user input for selecting a first brightness step, control the touch screen display to display an indicator at a first position corresponding to the first brightness step and to control a brightness of the touch screen display based on the first brightness step, receive, via the touch screen display, a second user input for selecting a second brightness step, and control the touch screen display to change a position of the indicator from the first position to a second position corresponding to the second brightness step and to change the brightness of the touch screen display based on the second brightness step.Type: GrantFiled: January 13, 2017Date of Patent: January 22, 2019Assignee: Samsung Electronics Co., LtdInventors: Woo-Seok Jang, Jin-Sung Park, Hyong-Sog Oh, Ji-Hwa Kim
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Patent number: 10127857Abstract: A temperature estimating apparatus includes an average data outputting circuit configured to output average data of image data displayed on a display panel. The temperature estimating apparatus further includes a change amount outputting circuit configured to determine a change amount of the average data, and to output an average data change amount. The temperature estimating apparatus additionally includes a luminance outputting circuit configured to convert the average data change amount to a luminance, and to output the luminance. The temperature estimating apparatus further includes a temperature sensor configured to sense an ambient temperature of the display panel, and to output the ambient temperature. The temperature estimating apparatus additionally includes a current temperature outputting circuit configured to determine a current temperature of the display panel based on a previous temperature of the display panel, the luminance and the ambient temperature.Type: GrantFiled: January 9, 2017Date of Patent: November 13, 2018Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jin-Ho Lee, So-Young Kim, Woo-Seok Jang, Man-Bok Cheon, Seung-Ho Park
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Patent number: 10109699Abstract: An organic light-emitting display panel includes a plurality of pixel columns, a plurality of first signal lines, and a plurality of second signal lines. Each of the pixel columns includes a plurality of organic light-emitting pixels. The first signal lines are arranged to correspond to the pixel columns. Each of the first signal lines connected to the organic light-emitting pixels of a corresponding pixel column. The second signal lines are respectively connected to the first signal lines and provide a first power supply voltage to corresponding ones of the first signal lines. Each of the second signal lines is connected substantially to a center portion of the corresponding first signal line.Type: GrantFiled: January 14, 2016Date of Patent: October 23, 2018Assignee: SAMSUNG DISPLAY CO., LTD.Inventor: Woo-seok Jang