Patents by Inventor Ki-Sub LIM
Ki-Sub LIM 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: 11603604Abstract: One embodiment of the present disclosure provides a spinning pack, a yarn manufacturing apparatus including the spinning pack, a yarn manufacturing method using the yarn manufacturing apparatus, and yarn manufactured by the manufacturing method. The spinning pack includes a spinneret having a nozzle unit, a heating unit for heating the nozzle unit, a pack body surrounding at least a part of the spinneret, and a spinning block surrounding the pack body, wherein the spinneret includes a first surface which defines a storage space while facing at least one surface of the spinning block, and a second surface facing the first surface, wherein the nozzle unit includes a plurality of discharge holes and protrudes from the second surface; and wherein the heating unit is disposed at the outer side of the nozzle unit.Type: GrantFiled: March 25, 2019Date of Patent: March 14, 2023Assignee: KOLON INDUSTRIES, INC.Inventors: Sung Ho Park, Il Chung, Ki Sub Lim
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Publication number: 20220349094Abstract: This invention relates to high tenacity yarn for a tire cord comprising polyethyleneterephthalate multifilament obtained by melting and spinning a resin composition comprising first polyethyleneterephthalate and second polyethyleneterephthalate having different intrinsic viscosities, and a method for preparing the same.Type: ApplicationFiled: July 3, 2020Publication date: November 3, 2022Inventors: Ki Sub LIM, Il CHUNG, Sung Ho PARK, Nermeen NABIH, Michael SCHUNACK, Thomas KRAMER
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Patent number: 11255025Abstract: The present invention relates to a spinning nozzle apparatus for manufacturing a high-strength fiber. The spinning nozzle apparatus for manufacturing a high-strength fiber according to the present invention is designed to optimize a heating method for the spinning region of a spinning nozzle in the melt spinning process. The heat transfer method is optimized by disposing the spinning nozzle holes of spinning nozzle commercially available on the outside of, directly under the pack body and heating the spinning nozzle holes with a heating body. In addition, an instantaneous heat treatment at high temperature is adopted to control the molecular entanglement structure in the melted polymer, which enhances the drawability of the thermoplastic resin and hence improves the mechanical properties such as strength and elongation.Type: GrantFiled: April 24, 2017Date of Patent: February 22, 2022Assignee: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGYInventors: Wan Gyu Hahm, In Woo Nam, Seung Jin Lee, Ki Sub Lim
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Publication number: 20210238768Abstract: The present invention relates to a spinning nozzle apparatus for manufacturing a high-strength fiber. The spinning nozzle apparatus for manufacturing a high-strength fiber according to the present invention is designed to optimize a heating method for the spinning region of a spinning nozzle in the melt spinning process. The heat transfer method is optimized by disposing the spinning nozzle holes of spinning nozzle commercially available on the outside of, directly under the pack body and heating the spinning nozzle holes with a heating body. In addition, an instantaneous heat treatment at high temperature is adopted to control the molecular entanglement structure in the melted polymer, which enhances the drawability of the thermoplastic resin and hence improves the mechanical properties such as strength and elongation.Type: ApplicationFiled: April 24, 2017Publication date: August 5, 2021Inventors: Wan Gyu HAHM, In Woo NAM, Seung Jin LEE, Ki Sub LIM
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Publication number: 20200392646Abstract: One embodiment of the present disclosure provides a spinning pack, a yarn manufacturing apparatus including the spinning pack, a yarn manufacturing method using the yarn manufacturing apparatus, and yarn manufactured by the manufacturing method. The spinning pack includes a spinneret having a nozzle unit, a heating unit for heating the nozzle unit, a pack body surrounding at least a part of the spinneret, and a spinning block surrounding the pack body, wherein the spinneret includes a first surface which defines a storage space while facing at least one surface of the spinning block, and a second surface facing the first surface, wherein the nozzle unit includes a plurality of discharge holes and protrudes from the second surface; and wherein the heating unit is disposed at the outer side of the nozzle unit.Type: ApplicationFiled: March 25, 2019Publication date: December 17, 2020Applicant: KOLON INDUSTRIES, INC.Inventors: Sung Ho PARK, II CHUNG, Ki Sub Lim
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Publication number: 20200216980Abstract: Disclosed are a PET fiber having an intrinsic viscosity of 1.1 dl/g or higher and a tensile strength of 10 g/d or higher, and a manufacturing method therefor. The manufacturing method includes the steps of: melting a polyethylene terephthalate chip having an intrinsic viscosity of 1.4 to 1.7 dl/g to prepare a spinning melt; discharging the spinning melt through a nozzle of a spinning pack; heating the spinning melt just before being discharged from the nozzle by means of a heat source of 300 to 500° C. located immediately below the nozzle; converging a plurality of filaments formed by the discharging to form a multifilament; and drawing the multifilament, wherein a temperature of the spinning pack is maintained at 280 to 305° C.Type: ApplicationFiled: September 3, 2018Publication date: July 9, 2020Applicant: KOLON INDUSTRIES, INC.Inventors: Ki Sub LIM, II CHUNG, Sung Ho PARK
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Patent number: 10584430Abstract: The present invention discloses a security yarn containing a multi-composite spinning fiber and security products using the same. The multi-composite spinning fiber, according to the present invention, contains, in at least one or more kinds of polymer materials, a first component selected from an IR reactive pigment or an IR absorption pigment, a second component selected from a visible pigment or an invisible UV-reactive fluorescent pigment, and a third component selected from X-ray absorption materials, so that the security yarn containing the multi-component spinning fiber can be identified by infrared and ultraviolet wavelength and easily identified when irradiated with X-rays, thus providing a multi-identification capability and being useful for preventing counterfeiting.Type: GrantFiled: October 15, 2013Date of Patent: March 10, 2020Assignee: Korea Institute of Industrial TechnologyInventors: Wan-Gyu Hahm, Sung Won Byun, Byeong Jin Yeang, In Woo Nam, Seung Jin Lee, Do Gun Kim, Ki Sub Lim
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Patent number: 10422052Abstract: Provided is a method of manufacturing high strength synthetic fibers, and high strength synthetic fibers manufactured using the same. More particularly, the method involves a localized heating process by raising the temperature of a molten spinning fiber to a temperature higher than that of a pack body during a short period of time with no degradation through a heating zone located in the immediate vicinity of capillary in the spinning nozzle, so as to effectively control the molecular entanglement structure in the molten polymer without reducing the molecular weight and thus to enhance the drawability of the as-spun fibers, thereby improving the mechanical properties of the as-spun fibers, such as strength, elongation, etc., using the existing processes of melt spinning and drawing and thus enabling a mass production of a high-performance fiber at low cost.Type: GrantFiled: March 9, 2016Date of Patent: September 24, 2019Assignee: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGYInventors: Wan Gyu Hahm, In Woo Nam, Seung Jin Lee, Do Kun Kim, Ki Sub Lim, Joo Hyung Lee, Gyu Dong Lee, Yeong Og Choi, Byeong Jin Yeang
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Patent number: 10266967Abstract: A method and apparatus for fabricating a conjugate fiber. Resins having different properties, for example, resins of the same or different components including functional pigments or substances are continuously and alternatively discharged in an endless state by operating a spinning nozzle unit in a melting state, thereby fabricating the conjugate fiber having the different properties in the longitudinal direction of the fiber, and having various surface effects and patterns in the longitudinal direction of the fiber. A conjugate fiber fabricated by the above apparatus and method is also provided.Type: GrantFiled: September 11, 2013Date of Patent: April 23, 2019Assignee: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGYInventors: Wan-Gyu Hahm, Sung Won Byun, Byeong Jin Yeang, In Woo Nam, Seung Jin Lee, Do Gun Kim, Ki Sub Lim
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Publication number: 20180051392Abstract: Provided is a method of manufacturing high strength synthetic fibers, and high strength synthetic fibers manufactured using the same. More particularly, the method involves a localized heating process by raising the temperature of a molten spinning fiber to a temperature higher than that of a pack body during a short period of time with no degradation through a heating zone located in the immediate vicinity of capillary in the spinning nozzle, so as to effectively control the molecular entanglement structure in the molten polymer without reducing the molecular weight and thus to enhance the drawability of the as-spun fibers, thereby improving the mechanical properties of the as-spun fibers, such as strength, elongation, etc., using the existing processes of melt spinning and drawing and thus enabling a mass production of a high-performance fiber at low cost.Type: ApplicationFiled: March 9, 2016Publication date: February 22, 2018Inventors: Wan Gyu HAHM, In Woo NAM, Seung Jin LEE, Do Kun KIM, Ki Sub LIM, Joo Hyung LEE, Gyu Dong LEE, Yeong Og CHOI, Byeong Jin YEANG
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Probing method, probe card for performing the method, and probing apparatus including the probe card
Patent number: 9599663Abstract: A probe method includes setting an allowable temperature range, the allowable temperature range including a test temperature and ensuring contact between a pad of a circuit substrate and a needle of a probe card, providing the probe card with a temperature within the allowable temperature range, contacting the needle of the probe card to the pad of the circuit substrate, and supplying a test current to the pad through the needle to test the circuit substrate.Type: GrantFiled: November 21, 2013Date of Patent: March 21, 2017Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sang-Boo Kang, Ki-Sub Lim -
Publication number: 20150329996Abstract: The present invention discloses a security yarn containing a multi-composite spinning fiber and security products using the same. The multi-composite spinning fiber, according to the present invention, contains, in at least one or more kinds of polymer materials, a first component selected from an IR reactive pigment or an IR absorption pigment, a second component selected from a visible pigment or an invisible UV-reactive fluorescent pigment, and a third component selected from X-ray absorption materials, so that the security yarn containing the multi-component spinning fiber can be identified by infrared and ultraviolet wavelength and easily identified when irradiated with X-rays, thus providing a multi-identification capability and being useful for preventing counterfeiting.Type: ApplicationFiled: October 15, 2013Publication date: November 19, 2015Inventors: Wan-Gyu Hahm, Sung Won Byun, Byeong Jin Yeang, In Woo Nam, Seung Jin Lee, Do Gun Kim, Ki Sub Lim
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Publication number: 20150240385Abstract: A method and apparatus for fabricating a conjugate fiber. Resins having different properties, for example, resins of the same or different components including functional pigments or substances are continuously and alternatively discharged in an endless state by operating a spinning nozzle unit in a melting state, thereby fabricating the conjugate fiber having the different properties in the longitudinal direction of the fiber, and having various surface effects and patterns in the longitudinal direction of the fiber. A conjugate fiber fabricated by the above apparatus and method is also provided.Type: ApplicationFiled: September 11, 2013Publication date: August 27, 2015Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGYInventors: Wan-Gyu Hahm, Sung Won Byun, Byeong Jin Yeang, In Woo Nam, Seung Jin Lee, Do Gun Kim, Ki Sub Lim
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PROBING METHOD, PROBE CARD FOR PERFORMING THE METHOD, AND PROBING APPARATUS INCLUDING THE PROBE CARD
Publication number: 20140253154Abstract: A probe method includes setting an allowable temperature range, the allowable temperature range including a test temperature and ensuring contact between a pad of a circuit substrate and a needle of a probe card, providing the probe card with a temperature within the allowable temperature range, contacting the needle of the probe card to the pad of the circuit substrate, and supplying a test current to the pad through the needle to test the circuit substrate.Type: ApplicationFiled: November 21, 2013Publication date: September 11, 2014Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sang-Boo KANG, Ki-Sub LIM