Patents by Inventor Bum-Gyu Choi
Bum-Gyu Choi 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: 10090219Abstract: The present application relates to a cured product and the use thereof. When the cured product, for example, is applied to a semiconductor device such as an LED or the like, the decrease in brightness may be minimized even upon the long-term use of the device, and since the cured product has excellent cracking resistance, the device having high long-term reliability may be provided. The cured product has excellent processability, workability, and adhesive properties or the like, and does not cause whitening and surface stickiness, etc. Further, the cured product exhibits excellent heat resistance at high temperature, gas barrier properties, etc. The cured product may be, for example, applied as an encapsulant or an adhesive material of a semiconductor device.Type: GrantFiled: January 28, 2015Date of Patent: October 2, 2018Assignee: LG CHEM, LTD.Inventors: Min Jin Ko, Kyung Mi Kim, Jae Ho Jung, Bum Gyu Choi, Min Kyoun Kim
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Patent number: 9870970Abstract: The present application relates to a cured product and the use thereof. When the cured product, for example, is applied to a semiconductor device such as an LED or the like, the decrease in brightness may be minimized even upon the long-term use of the device, and since the cured product has excellent cracking resistance, the device having high long-term reliability may be provided. The cured product has excellent processability, workability, and adhesive properties or the like, and does not cause whitening and surface stickiness, etc. Further, the cured product exhibits excellent heat resistance at high temperature, gas barrier properties, etc. The cured product may be, for example, applied as an encapsulant or an adhesive material of a semiconductor device.Type: GrantFiled: January 28, 2015Date of Patent: January 16, 2018Assignee: LG CHEM, LTD.Inventors: Min Jin Ko, Kyung Mi Kim, Jae Ho Jung, Bum Gyu Choi, Min Kyoun Kim
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Patent number: 9837329Abstract: The present application relates to a cured product and the use thereof. When the cured product, for example, is applied to a semiconductor device such as an LED or the like, the decrease in brightness may be minimized even upon the long-term use of the device, and since the cured product has excellent cracking resistance, the device having high long-term reliability may be provided. The cured product has excellent processability, workability, and adhesive properties or the like, and does not cause whitening and surface stickiness, etc. Further, the cured product exhibits excellent heat resistance at high temperature, gas barrier properties, etc. The cured product may be, for example, applied as an encapsulant or an adhesive material of a semiconductor device.Type: GrantFiled: January 28, 2015Date of Patent: December 5, 2017Assignee: LG CHEM, LTD.Inventors: Min Jin Ko, Kyung Mi Kim, Jae Ho Jung, Bum Gyu Choi, Min Kyoun Kim
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Patent number: 9805999Abstract: The present application relates to a cured product and the use thereof. The cured product has excellent processability, workability, and adhesive properties or the like, and does not cause whitening and surface stickiness, etc. The cured product has excellent transparency, moisture resistance, mechanical properties, and cracking resistance, etc. The cured product, for example, may be applied as an encapsulant or an adhesive material of a semiconductor device to provide a device having high long-term reliability.Type: GrantFiled: January 28, 2015Date of Patent: October 31, 2017Assignee: LG CHEM, LTD.Inventors: Min Jin Ko, Kyung Mi Kim, Jae Ho Jung, Bum Gyu Choi, Min Kyoun Kim
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Patent number: 9624345Abstract: Provided are a curable composition and its use. The curable composition exhibits excellent processability and workability before curing, and excellent light extraction efficiency, hardness, thermal and shock resistance, moisture resistance, gas permeability, and adhesiveness after curing. In addition, the curable composition may provide a cured product that exhibits long-lasting durability and reliability even under harsh conditions, and does not causing whitening and surface stickiness.Type: GrantFiled: January 27, 2015Date of Patent: April 18, 2017Assignee: LG CHEM, LTD.Inventors: Min Jin Ko, Bum Gyu Choi, Jae Ho Jung, Dae Ho Kang, Min Kyoun Kim, Byung Kyu Cho
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Patent number: 9598542Abstract: Provided is a curable composition and its use. The curable composition may exhibit excellent processibility and workability. The curable composition has excellent light extraction efficiency, crack resistance, hardness, thermal and shock resistance and an adhesive property after curing. The curable composition may provide a cured product exhibiting stable durability and reliability under severe conditions for a long time and having no whitening and surface stickiness.Type: GrantFiled: December 18, 2013Date of Patent: March 21, 2017Assignee: LG CHEM, LTD.Inventors: Bum Gyu Choi, Min Jin Ko, Myung Sun Moon, Jae Ho Jung, Dae Ho Kang, Min Kyoun Kim, Byung Kyu Cho
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Publication number: 20160336248Abstract: The present application relates to a cured product and the use thereof. When the cured product, for example, is applied to a semiconductor device such as an LED or the like, the decrease in brightness may be minimized even upon the long-term use of the device, and since the cured product has excellent cracking resistance, the device having high long-term reliability may be provided. The cured product has excellent processability, workability, and adhesive properties or the like, and does not cause whitening and surface stickiness, etc. Further, the cured product exhibits excellent heat resistance at high temperature, gas barrier properties, etc. The cured product may be, for example, applied as an encapsulant or an adhesive material of a semiconductor device.Type: ApplicationFiled: January 28, 2015Publication date: November 17, 2016Applicant: LG CHEM, Ltd.Inventors: Min Jin KO, Kyung Mi KIM, Jae Ho JUNG, Bum Gyu CHOI, Min Kyoun KIM
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Publication number: 20160322546Abstract: The present application relates to a cured product and the use thereof. The cured product has excellent processability, workability, and adhesive properties or the like, and does not cause whitening and surface stickiness, etc. The cured product has excellent transparency, moisture resistance, mechanical properties, and cracking resistance, etc. The cured product, for example, may be applied as an encapsulant or an adhesive material of a semiconductor device to provide a device having high long-term reliability.Type: ApplicationFiled: January 28, 2015Publication date: November 3, 2016Applicant: LG CHEM, LTD.Inventors: Min Jin KO, Kyung Mi KIM, Jae Ho JUNG, Bum Gyu CHOI, Min Kyoun KIM
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Publication number: 20160315026Abstract: The present application relates to a cured product and the use thereof. When the cured product, for example, is applied to a semiconductor device such as an LED or the like, the decrease in brightness may be minimized even upon the long-term use of the device, and since the cured product has excellent cracking resistance, the device having high long-term reliability may be provided. The cured product has excellent processability, workability, and adhesive properties or the like, and does not cause whitening and surface stickiness, etc. Further, the cured product exhibits excellent heat resistance at high temperature, gas barrier properties, etc. The cured product may be, for example, applied as an encapsulant or an adhesive material of a semiconductor device.Type: ApplicationFiled: January 28, 2015Publication date: October 27, 2016Applicant: LG CHEM, LTD.Inventors: Min Jin KO, Kyung Mi KIM, Jae Ho JUNG, Bum Gyu CHOI, Min Kyoun KIM
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Patent number: 9455210Abstract: Provided are a curable composition and its use. The curable composition can exhibit excellent processibility and workability. The curable composition exhibits excellent light extraction efficiency, hardness, thermal and shock resistance, moisture resistance, gas permeability and adhesiveness, after curing. In addition, the curable composition can provide a cured product that exhibits long-lasting durability and reliability, and that does not cause whitening and surface stickiness even under harsh conditions.Type: GrantFiled: July 29, 2013Date of Patent: September 27, 2016Assignee: LG CHEM, LTD.Inventors: Min Jin Ko, Bum Gyu Choi, Jae Ho Jung, Dae Ho Kang, Min Kyoun Kim, Byung Kyu Cho
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Publication number: 20160257788Abstract: The present application relates to a cured product and the use thereof. When the cured product, for example, is applied to a semiconductor device such as an LED or the like, the decrease in brightness may be minimized even upon the long-term use of the device, and since the cured product has excellent cracking resistance, the device having high long-term reliability may be provided. The cured product has excellent processability, workability, and adhesive properties or the like, and does not cause whitening and surface stickiness, etc. Further, the cured product exhibits excellent heat resistance at high temperature, gas barrier properties, etc. The cured product may be, for example, applied as an encapsulant or an adhesive material of a semiconductor device.Type: ApplicationFiled: January 28, 2015Publication date: September 8, 2016Applicant: LG CHEM, LTD.Inventors: Min Jin KO, Kyung Mi KIM, Jae Ho JUNG, Bum Gyu CHOI, Min Kyoun KIM
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Patent number: 9410018Abstract: The present application relates to a curable composition. A curable composition may be provided; which shows excellent processability and workability; which shows excellent light extraction efficiency, crack resistance, hardness, thermal shock resistance and adhesive strength after curing; and which has excellent reliability and long-term reliability under high-temperature and/or high-moisture conditions. Also, turbidity and surface stickiness may be prevented in the cured product.Type: GrantFiled: December 27, 2013Date of Patent: August 9, 2016Assignee: LG CHEM, LTD.Inventors: Min Jin Ko, Myung Sun Moon, Jae Ho Jung, Bum Gyu Choi, Dae Ho Kang, Min Kyoun Kim
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Patent number: 9379296Abstract: A silicone resin is provided. The silicone resin may be effectively used to encapsulate a semiconductor element, for example, a light-emitting element of a light-emitting diode.Type: GrantFiled: December 30, 2013Date of Patent: June 28, 2016Assignee: LG Chem, Ltd.Inventors: Min Jin Ko, Myung Sun Moon, Jae Ho Jung, Bum Gyu Choi, Dae Ho Kang, Min Kyoun Kim
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Patent number: 9362468Abstract: Provided are a curable composition and its use. The curable composition having excellent processability, workability, heat resistance, and light resistance, and having no problem of discoloring despite using for a long time may be provided. The curable composition which may scatter light and disperse linearity of light when used as an encapsulant of an optical semiconductor such as an LED may be provided.Type: GrantFiled: January 27, 2015Date of Patent: June 7, 2016Assignee: LG CHEM, LTD.Inventors: Min Jin Ko, Jae Ho Jung, Bum Gyu Choi, Dae Ho Kang, Min Kyoun Kim, Byung Kyu Cho
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Patent number: 9355926Abstract: Provided are a curable composition and its use. The curable composition can exhibit excellent processability and workability. The curable composition exhibits excellent light extraction efficiency, hardness, thermal and shock resistance, moisture resistance, gas permeability, and adhesiveness, after curing. In addition, the curable composition can provide a cured product that exhibits long-lasting durability and reliability even under harsh conditions and that does not cause whitening or surface stickiness.Type: GrantFiled: September 18, 2013Date of Patent: May 31, 2016Assignee: LG CHEM, LTD.Inventors: Min Jin Ko, Bum Gyu Choi, Jae Ho Jung, Dae Ho Kang, Min Kyoun Kim, Byung Kyu Cho
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Patent number: 9299896Abstract: A curable composition is provided. A cured product showing excellent light extraction efficiency, crack resistance, hardness, thermal shock resistance and adhesive strength after a curing, as well as showing excellent processability and workability is provided. Also, surface stickiness may be prevented in the cured product without causing turbidity etc.Type: GrantFiled: December 30, 2013Date of Patent: March 29, 2016Assignee: LG CHEM, LTD.Inventors: Min Jin Ko, Myung Sun Moon, Jae Ho Jung, Bum Gyu Choi, Dae Ho Kang, Min Kyoun Kim
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Patent number: 9243166Abstract: Provided are a curable composition and its use. The curable composition has excellent processability, workability and adhesiveness, exhibits excellent light extraction efficiency, crack resistance, hardness, thermal and shock resistance and adhesiveness after curing, has long-lasting durability and reliability even under harsh conditions, and does not cause whitening or surface stickiness. The curable composition can be used as an encapsulant or adhesive material for an optical semiconductor such as an LED.Type: GrantFiled: January 27, 2015Date of Patent: January 26, 2016Assignee: LG CHEM, LTD.Inventors: Min Jin Ko, Jae Ho Jung, Bum Gyu Choi, Dae Ho Kang, Min Kyoun Kim, Byung Kyu Cho
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Patent number: 9243143Abstract: Provided are a curable composition and its use. The curable composition may provide a cured product having excellent processability and workability, no whitening and surface stickiness, and an excellent adhesive property. Since the curable composition has excellent thermal resistance, gas barrier-ability, and crack resistance, even when a semiconductor device to which the composition is applied is used at a high temperature for a long time, performance of the device may be stably maintained. Specifically the curable composition is a blend of three different polyorganosiloxanes having aliphatic unsaturated groups and specific Ar/Si ratios and a polyorganosiloxane having SiH groups.Type: GrantFiled: August 13, 2014Date of Patent: January 26, 2016Assignee: LG Chem, Ltd.Inventors: Min Jin Ko, Kyung Mi Kim, Young Ju Park, Bum Gyu Choi, Dae Ho Kang, Byung Kyu Cho, You Na Yang
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Patent number: 9177883Abstract: Provided is a curable composition and its use. The curable composition may exhibit excellent processibility and workability. The curable composition has excellent light extraction efficiency, crack resistance, hardness, thermal and shock resistance and an adhesive property after curing. The curable composition may provide a cured product exhibiting stable durability and reliability under severe conditions in a long time and having no whitening and surface stickiness.Type: GrantFiled: December 23, 2013Date of Patent: November 3, 2015Assignee: LG Chem, Ltd.Inventors: Min Jin Ko, Jae Ho Jung, Myung Sun Moon, Bum Gyu Choi, Dae Ho Kang, Min Kyoun Kim, Byung Kyu Cho
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Patent number: 9147819Abstract: A curable composition and use thereof are provided. The composition can be useful in exhibiting excellent processability and workability, and providing a cured product which exhibits superior light extraction efficiency, crack resistance, hardness, thermal shock resistance, and adhesive properties, has superior reliability under severe conditions for a long period of time and prevents opacity and stickiness onto a surface thereof when cured. Also, the curable composition capable of preventing precipitation of an additive such as a fluorescent material or a photoconversion material and being formed into a cured product having excellent transparency even when the additive is added to the curable composition can be provided.Type: GrantFiled: January 22, 2014Date of Patent: September 29, 2015Assignee: LG Chem, Ltd.Inventors: Min Jin Ko, Myung Sun Moon, Jae Ho Jung, Bum Gyu Choi, Dae Ho Kang, Min Kyoun Kim, Byung Kyu Cho