Patents by Inventor Young Wook Ko
Young Wook Ko 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: 20240086603Abstract: A method of reinforcement learning of a neural network device for generating a verification vector for verifying a circuit design comprising a circuit block includes inputting a test vector to the circuit block, generating one or more rewards based on a coverage corresponding to the test vector, the coverage being determined based on a state transition of the circuit block based on the test vector, and applying the one or more rewards to a reinforcement learning.Type: ApplicationFiled: November 16, 2023Publication date: March 14, 2024Applicant: SAMSUNG ELECTRONICS CO, LTD.Inventors: In HUH, Jeong-hoon KO, Hyo-jin CHOI, Seung-ju KIM, Chang-wook JEONG, Joon-wan CHAI, Kwang-II PARK, Youn-sik PARK, Hyun-sun PARK, Young-min OH, Jun-haeng LEE, Tae-ho LEE
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Publication number: 20170138565Abstract: According to an embodiment, a lighting device includes a light source configured to irradiate light, a reflector configured to reflect the light from the light source, and a supporter disposed at a first end of the reflector and configured to support the light source, wherein the light source irradiates the light toward a second end of the reflector, and a reflection area of the reflector becomes larger from the second end of the reflector to the first end of the reflector.Type: ApplicationFiled: May 7, 2015Publication date: May 18, 2017Applicant: GL VISION INC.Inventors: Young Wook KO, Eun Mi LEE
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Patent number: 9157026Abstract: A photoluminescent sheet is disclosed. In one embodiment, the photoluminescent sheet has a phosphor, absorbs some light, of at least one wavelength, of light emitted from a light source, emits particular light of a wavelength different from the wavelength of the emitted light and allows the remaining of the light emitted from the light source to penetrates the photoluminescent sheet, whereas the photoluminescent sheet comprises at least a surface comprising a wet preventing layer for minimizing a contracting area between the photoluminescent sheet and another sheet. According to at least one embodiment, wet is not generated on a screen even though the photoluminescent sheet is connected to other sheets.Type: GrantFiled: October 4, 2010Date of Patent: October 13, 2015Assignee: LG INNOTEK CO., LTD.Inventors: Choong-Yong Sohn, Young-Wook Ko
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Patent number: 8723411Abstract: A photoluminescent sheet is disclosed. A photoluminescent sheet that includes a matrix resin layer, which is a thermosetting resin; a phosphor, which is included in the matrix resin layer and which converts the wavelength of light emitted from a blue LED; a curing agent, which is included in the matrix resin layer and which cures liquid thermosetting resin; and an additive, which is included in the matrix resin layer and which disperses the phosphor uniformly within the matrix resin layer, can implement white light from light having wavelengths corresponding to blue color.Type: GrantFiled: July 3, 2012Date of Patent: May 13, 2014Assignee: LG Innotek Co., Ltd.Inventors: Choong-Yong Sohn, Young-Joo Ahn, Young-Wook Ko
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Patent number: 8652651Abstract: A photoluminescent sheet is disclosed. In one embodiment, the photoluminescent sheet includes i) a phosphor, for absorbing some light, of at least one wavelength, of light emitted from a light source and emitting particular light of a wavelength different from the wavelength of the emitted light, ii) a matrix, for having the phosphor, the remaining of the light emitted from the light source penetrating the matrix and iii) a passivation film, for being laminated to at least one surface of the matrix, whereas a roughness is formed on a surface of the passivation film to reduce a contacting area between the photoluminescent sheet and another sheet. According to one embodiment of the present invention, wet is not generated on a screen even though the photoluminescent sheet is connected to other sheets.Type: GrantFiled: March 12, 2007Date of Patent: February 18, 2014Assignee: LG Innotek Co., Ltd.Inventors: Choong-Yong Sohn, Young-Wook Ko
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Publication number: 20120267998Abstract: A photoluminescent sheet is disclosed. A photoluminescent sheet that includes a matrix resin layer, which is a thermosetting resin; a phosphor, which is included in the matrix resin layer and which converts the wavelength of light emitted from a blue LED; a curing agent, which is included in the matrix resin layer and which cures liquid thermosetting resin; and an additive, which is included in the matrix resin layer and which disperses the phosphor uniformly within the matrix resin layer, can implement white light from light having wavelengths corresponding to blue color.Type: ApplicationFiled: July 3, 2012Publication date: October 25, 2012Applicant: LG INNOTEK CO., LTD.Inventors: Choong-Yong SOHN, Young-Joo AHN, Young-Wook KO
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Patent number: 8237352Abstract: A photoluminescent sheet is disclosed. A photoluminescent sheet that includes a matrix resin layer, which is a thermosetting resin; a phosphor, which is included in the matrix resin layer and which converts the wavelength of light emitted from a blue LED; a curing agent, which is included in the matrix resin layer and which cures liquid thermosetting resin; and an additive, which is included in the matrix resin layer and which disperses the phosphor uniformly within the matrix resin layer, can implement white light from light having wavelengths corresponding to blue color.Type: GrantFiled: October 26, 2006Date of Patent: August 7, 2012Assignees: LG Innotek Co., Ltd., KDT Co., Ltd.Inventors: Choong-Yong Sohn, Young-Joo Ahn, Young-Wook Ko
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Publication number: 20120033420Abstract: Provided is a light emitting diode (LED) lamp having a broad and uniform light distribution. The LED lamp having a broad and uniform light distribution includes a printed circuit board (PCB) on which a plurality of LEDs for emitting a light are mounted, a light transmitting unit that faces opposite to a side of the PCB on which the LED is mounted and forms a predetermined angle such that a light emitted from the LED is diffused in a different direction of a major light distribution corresponding to the predetermined angle, a PCB support unit that supports the PCB, and a power supply unit that supplies a power to the LED. The LED lamp according to the present invention is capable of evenly radiating a wide area, thereby replacing a conventional lamp not only in indoors such as a home or an office but also in outdoors.Type: ApplicationFiled: April 7, 2010Publication date: February 9, 2012Inventors: Sun Woong Kim, Young Wook Ko
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Publication number: 20110020607Abstract: A photoluminescent sheet is disclosed. In one embodiment, the photoluminescent sheet has a phosphor, absorbs some light, of at least one wavelength, of light emitted from a light source, emits particular light of a wavelength different from the wavelength of the emitted light and allows the remaining of the light emitted from the light source to penetrates the photoluminescent sheet, whereas the photoluminescent sheet comprises at least a surface comprising a wet preventing layer for minimizing a contracting area between the photoluminescent sheet and another sheet. According to at least one embodiment, wet is not generated on a screen even though the photoluminescent sheet is connected to other sheets.Type: ApplicationFiled: October 4, 2010Publication date: January 27, 2011Applicant: LG INNOTEK CO., LTD.Inventors: Choong-Yong Sohn, Young-Wook Ko
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Patent number: 7829179Abstract: A photoluminescent sheet is disclosed. In one embodiment, the photoluminescent sheet has a phosphor, absorbs some light, of at least one wavelength, of light emitted from a light source, emits particular light of a wavelength different from the wavelength of the emitted light and allows the remaining of the light emitted from the light source to penetrates the photoluminescent sheet, whereas the photoluminescent sheet comprises at least a surface comprising a wet preventing layer for minimizing a contracting area between the photoluminescent sheet and another sheet. According to at least one embodiment, wet is not generated on a screen even though the photoluminescent sheet is connected to other sheets.Type: GrantFiled: March 12, 2007Date of Patent: November 9, 2010Assignee: LG Innotek Co., Ltd.Inventors: Choong-Yong Sohn, Young-Wook Ko
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Publication number: 20090212257Abstract: A photoluminescent sheet is disclosed. A photoluminescent sheet that includes a matrix resin layer, which is a thermosetting resin; a phosphor, which is included in the matrix resin layer and which converts the wavelength of light emitted from a blue LED; a curing agent, which is included in the matrix resin layer and which cures liquid thermosetting resin; and an additive, which is included in the matrix resin layer and which disperses the phosphor uniformly within the matrix resin layer, can implement white light from light having wavelengths corresponding to blue color.Type: ApplicationFiled: October 26, 2006Publication date: August 27, 2009Inventors: Choong-Yong Sohn, Young-Joo Ahn, Young-Wook Ko
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Publication number: 20070221866Abstract: A photoluminescent sheet is disclosed. In one embodiment, the photoluminescent sheet has a phosphor, absorbs some light, of at least one wavelength, of light emitted from a light source, emits particular light of a wavelength different from the wavelength of the emitted light and allows the remaining of the light emitted from the light source to penetrates the photoluminescent sheet, whereas the photoluminescent sheet comprises at least a surface comprising a wet preventing layer for minimizing a contracting area between the photoluminescent sheet and another sheet. According to at least one embodiment, wet is not generated on a screen even though the photoluminescent sheet is connected to other sheets.Type: ApplicationFiled: March 12, 2007Publication date: September 27, 2007Inventors: Choong-Yong Sohn, Young-Wook Ko
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Publication number: 20070221865Abstract: A photoluminescent sheet is disclosed. In one embodiment, the photoluminescent sheet includes i) a phosphor, for absorbing some light, of at least one wavelength, of light emitted from a light source and emitting particular light of a wavelength different from the wavelength of the emitted light, ii) a matrix, for having the phosphor, the remaining of the light emitted from the light source penetrating the matrix and iii) a passivation film, for being laminated to at least one surface of the matrix, whereas a roughness is formed on a surface of the passivation film to reduce a contacting area between the photoluminescent sheet and another sheet. According to one embodiment of the present invention, wet is not generated on a screen even though the photoluminescent sheet is connected to other sheets.Type: ApplicationFiled: March 12, 2007Publication date: September 27, 2007Inventors: Choong-Yong Sohn, Young-Wook Ko
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Patent number: 7045469Abstract: A method of forming a buffer dielectric film in a semiconductor device and a method of manufacturing a thin film transistor using the same are disclosed.Type: GrantFiled: October 2, 2003Date of Patent: May 16, 2006Assignee: Electronics and Telecommunications Research InstituteInventors: Choong Yong Sohn, Yong Hae Kim, Jin Ho Lee, Young Wook Ko, Choong Heui Chung
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Publication number: 20040121529Abstract: A method of forming a buffer dielectric film in a semiconductor device and a method of manufacturing a thin film transistor using the same are disclosed.Type: ApplicationFiled: October 2, 2003Publication date: June 24, 2004Inventors: Choong Yong Sohn, Yong Hae Kim, Jin Ho Lee, Young Wook Ko, Choong Heui Chung
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Patent number: 6713953Abstract: Disclosed is a field emission display device which can prevent mixing of colors between the phosphor elements of the field emission display device. In the field emission display device, an upper substrate and a lower substrate are spaced apart with a predetermined gap and opposed to each other. Cathode assemblies are formed in a shape of stripes on the lower substrate. Anodes are formed on the upper substrate, and black matrices are formed on the anodes. The black matrices are disposed at locations respectively corresponding to every space between the cathode assemblies, so as to respectively have a shape of a partition. R, G, and B phosphor elements are formed in spaces between the black matrices, so as to respectively correspond to the cathode assemblies.Type: GrantFiled: June 20, 2000Date of Patent: March 30, 2004Assignee: Boe-Hydis Technology Co., Ltd.Inventors: Un Cheol Sung, Ick Hwan Ko, Kyo Woong Lee, Young Wook Ko
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Patent number: D595449Type: GrantFiled: June 19, 2007Date of Patent: June 30, 2009Assignee: Egnics Co., Ltd.Inventors: Young-Wook Ko, Choong-Yong Sohn, Gi-Wook Kang, Bae-Wan Park, Young-Chang Kwon
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Patent number: D595450Type: GrantFiled: June 19, 2007Date of Patent: June 30, 2009Assignee: Egnics Co., Ltd.Inventors: Young-Wook Ko, Choong-Yong Sohn, Gi-Wook Kang, Bae-Wan Park, Young-Chang Kwon