Patents by Inventor Kyo Koo
Kyo Koo 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: 20240136531Abstract: A conductive composite material, a method of preparing the same, and a secondary battery including the same. The conductive composite material may increase the proportion of an active material when forming an electrode by chemically bonding a conductive material and a binder to each other. A method of preparing the conductive composite material comprises ionizing carbon-based particles in a predetermined polarity, ionizing PTFE particles in a polarity different from that of the carbon-based particles, and chemically bonding the ionized carbon-based particles and the ionized PTFE particles, which are ionized in different polarities, to each other.Type: ApplicationFiled: September 20, 2023Publication date: April 25, 2024Inventors: Seung Min Oh, Sung Ho Ban, Sang Hun Lee, Ko Eun Kim, Yoon Sung Lee, Chang Hoon Song, Hyeong Jun Choi, Jun Myoung Sheem, Jin Kyo Koo, Young Jun Kim
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Patent number: 11345981Abstract: The present disclosure relates to a biodegradable metal alloy with multiple properties, containing: 0.05-0.15 wt % of calcium; a metal element X having a HCP structure, of a composition not forming a precipitated phase when mixed with magnesium; and magnesium as the remainder.Type: GrantFiled: December 20, 2018Date of Patent: May 31, 2022Assignee: U & I CORPORATIONInventors: Ja Kyo Koo, Hwa Chul Jung, Won Hyun Shim, Hyung Jin Roh, Hyun Kwang Seok, Yu Chan Kim
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Publication number: 20200173000Abstract: The present disclosure relates to a biodegradable metal alloy with multiple properties, containing: 0.05-0.15 wt % of calcium; a metal element X having a HCP structure, of a composition not forming a precipitated phase when mixed with magnesium; and magnesium as the remainder.Type: ApplicationFiled: December 20, 2018Publication date: June 4, 2020Inventors: Ja Kyo Koo, Hwa Chul Jung, Won Hyun Shim, Hyung Jin Roh, Hyun Kwang Seok, Yu Chan Kim
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Patent number: 10052405Abstract: This invention relates to a biodegradable implant including magnesium, wherein the magnesium contains, as impurities, (i) manganese (Mn); and (ii) one selected from the group consisting of iron (Fe), nickel (Ni) and mixtures of iron (Fe) and nickel (Ni), wherein the impurities satisfy the following condition: 0<(ii)/(i)?5, and an amount of the impurities is 1 part by weight or less but exceeding 0 parts by weight based on 100 parts by weight of the magnesium, and to a method of manufacturing the same.Type: GrantFiled: August 12, 2015Date of Patent: August 21, 2018Assignee: U&I CorporationInventors: Ja-Kyo Koo, Hyun-Kwang Seok, Seok-Jo Yang, Yu-Chan Kim, Sung-Youn Cho, Jong-Tack Kim
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Patent number: 9943625Abstract: The present invention relates to a magnesium alloy having controlled corrosion resistance properties, which comprises magnesium (Mg) and an alloying element and includes a magnesium phase and a phase composed of magnesium and the alloying element, wherein the difference in electrical potential between the magnesium phase and the phase composed of magnesium and the alloying element is greater than 0 V but not greater than 0.2 V.Type: GrantFiled: December 9, 2016Date of Patent: April 17, 2018Assignee: U&I CorporationInventors: Ja-Kyo Koo, Hyun-Kwang Seok, Seok-Jo Yang, Yu-Chan Kim, Sung-Youn Cho, Jong-Tack Kim
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Publication number: 20170128620Abstract: This invention relates to a biodegradable implant including magnesium, wherein the magnesium contains, as impurities, (i) manganese (Mn); and (ii) one selected from the group consisting of iron (Fe), nickel (Ni) and mixtures of iron (Fe) and nickel (Ni), wherein the impurities satisfy the following condition: 0<(ii)/(i)?5, and an amount of the impurities is 1 part by weight or less but exceeding 0 parts by weight based on 100 parts by weight of the magnesium, and to a method of manufacturing the same.Type: ApplicationFiled: January 13, 2017Publication date: May 11, 2017Inventors: Ja-Kyo Koo, Hyun-Kwang Seok, Seok-Jo Yang, Yu-Chan Kim, Sung-Youn Cho, Jong-Tack Kim
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Publication number: 20170119922Abstract: The present invention relates to a magnesium alloy having controlled corrosion resistance properties, which comprises magnesium (Mg) and an alloying element and includes a magnesium phase and a phase composed of magnesium and the alloying element, wherein the difference in electrical potential between the magnesium phase and the phase composed of magnesium and the alloying element is greater than 0 V but not greater than 0.2 V.Type: ApplicationFiled: December 9, 2016Publication date: May 4, 2017Inventors: Ja-Kyo Koo, Hyun-Kwang Seok, Seok-Jo Yang, Yu-Chan Kim, Sung-Youn Cho, Jong-Tack Kim
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Publication number: 20160000964Abstract: This invention relates to a biodegradable implant including magnesium, wherein the magnesium contains, as impurities, (i) manganese (Mn); and (ii) one selected from the group consisting of iron (Fe), nickel (Ni) and mixtures of iron (Fe) and nickel (Ni), wherein the impurities satisfy the following condition: 0</(i)?5, and an amount of the impurities is 1 part by weight or less but exceeding 0 parts by weight based on 100 parts by weight of the magnesium, and to a method of manufacturing the same.Type: ApplicationFiled: August 12, 2015Publication date: January 7, 2016Inventors: Ja-Kyo Koo, Hyun-Kwang Seok, Seok-Jo Yang, Yu-Chan Kim, Sung-Youn Cho, Jong-Tack Kim
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Patent number: 8795196Abstract: A micro spike having a three-dimensional structure made of single crystalline silicon and being capable of picking an enough amount of a tissue to examine the tissue while minimizing an examinee's pain with a minimal invasion when picking the tissue and a method of manufacturing the same are disclosed. The micro spike comprising: a main body part; extension parts inserted into a tissue when picking the tissue sample and integratedly extended from upper and lower parts of one side of the main body part; and a protrusion part integratedly protruded from at least one of side surfaces of the extension parts and inserted into the tissue to pick the tissue sample together with the extension parts when picking the living tissue sample.Type: GrantFiled: December 7, 2007Date of Patent: August 5, 2014Assignee: SNU R&DB FoundationInventors: Dongil Cho, Ahra Lee, Seung-Joon Paik, Myoung-Jun Jeong, HyunMin Choi, Jung-Min Lim, Sunkil Park, Kyo-In Koo, Jae Won Ban
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Publication number: 20130131814Abstract: The present invention provides an implant, which is used to fix an artificial joint in bone, including a biodegradable magnesium alloy.Type: ApplicationFiled: December 7, 2010Publication date: May 23, 2013Inventors: Ja-Kyo Koo, Hyun-Kwang Seok, Seok-Jo Yang, Yu-Chan Kim, Jong-Tack Kim
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Publication number: 20120269673Abstract: The present invention relates to a magnesium alloy having controlled corrosion resistance properties, which comprises magnesium (Mg) and an alloying element and includes a magnesium phase and a phase composed of magnesium and the alloying element, wherein the difference in electrical potential between the magnesium phase and the phase composed of magnesium and the alloying element is greater than 0 V but not greater than 0.2 V.Type: ApplicationFiled: December 7, 2010Publication date: October 25, 2012Inventors: Ja-Kyo Koo, Hyun-Kwang Seok, Seok-Jo Yang, Yu-Chan Kim, Sung-Youn Cho, Jong-Tack Kim
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Publication number: 20120089141Abstract: Disclosed is a direction controllable electrode body, comprising a flexible body which comprises: a first electrode, comprising a body, a first cap joined to one end of the body, and a first electrode line connected to an other end of the body; an insulator in partial contact with the body and the first cap of the first electrode, said insulator functioning to insulate the first electrode from the second electrode; a second electrode, comprising a first ring in contact with the insulator, and a second electrode line connected to one end of the first ring; and a direction controller, comprising a first direction controlling wire communicating with the first electrode or the second electrode to control direction of the electrode body. Also, a guide pipe is provided for leading the electrode body to a target tissue.Type: ApplicationFiled: June 9, 2009Publication date: April 12, 2012Applicants: Korea University Research and Business Foundation, U&I CorporationInventors: Sang-Heon Lee, Sung-Youn Cho, Bong-Su Kang, Sang-Woon Kim, Ja-kyo Koo, Jong-Tack Kim
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Publication number: 20120065634Abstract: The present invention relates to treating an inter-vertebral disc, in particular, to a method of treating an inter-vertebral disc by effectively ablating a tissue within a disc, in which herniation of nucleus pulposus occurs. A method of treating an inter-vertebral disc according to one embodiment of the present invention relates to treatment using a guidable electrode to be inserted into an inter-vertebral disc of a patient, in which the treatment comprises a step of inserting a front end of a needle unit from the outside of annulus fibrosus into the inside of the annulus fibrosus, a step of inserting a guidable electrode through the rear of the needle unit, a step of adjusting position of the end of the electrode to be adjacent to a target tissue within the annulus fibrosus, and a step of ablating a tissue within nucleus pulposus by applying electrical energy to the electrode.Type: ApplicationFiled: September 14, 2010Publication date: March 15, 2012Applicants: KOREA UNIVERSITY INDUSTRIAL & ACADEMIC COLLABORATION FOUNDATION, U&I CORPORATIONInventors: Sang-Heon LEE, Sung-Youn Cho, Bong-Su Kang, Sang Wun Kim, Ja-Kyo Koo, Jong-Tack Kim
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Patent number: 8118753Abstract: Disclosed are a barb-wired single crystalline silicon micro needle and a biopsy method and a medicine injecting method using the same. The micro needle comprises a main body part, at least one extension part formed on a side surface of the main body part, and a protrusion part protruded from both side surfaces of the extension part. A medicine storage is formed on a surface of the main body part. A fluid passage is formed in the extension part and the main body part. It is easy to pick the tissue sample with the protrusion part just by inserting and extracting the extension part of the micro needle into and from the tissue for a biopsy. Therefore, the biopsy procedures can be simplified. In addition, the medicine in the storage can be injected into the tissue via the fluid passage.Type: GrantFiled: February 12, 2008Date of Patent: February 21, 2012Assignee: Seoul National University Industry FoundationInventors: Dong-il Cho, Seung Joon Paik, Jung Min Lim, Ah Ra Lee, Sang Won Byun, Kyo-In Koo
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Publication number: 20120035740Abstract: This invention relates to a biodegradable implant including magnesium, wherein the magnesium contains, as impurities, (i) manganese (Mn); and (ii) one selected from the group consisting of iron (Fe), nickel (Ni) and mixtures of iron (Fe) and nickel (Ni), wherein the impurities satisfy the following condition: 0</(i)?5, and an amount of the impurities is 1 part by weight or less but exceeding 0 parts by weight based on 100 parts by weight of the magnesium, and to a method of manufacturing the same.Type: ApplicationFiled: April 22, 2010Publication date: February 9, 2012Inventors: Ja-Kyo Koo, Seok Hyun-Kwang, Seok-Jo Yang, Yu-chan Kim, Sung-youn Cho, Jong-Tack Kim
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Publication number: 20110054629Abstract: The present invention provides a composite implant comprising pores of a porous structure filled with a biodegradable magnesium-based alloy. Further, the present invention provides a composite implant which filles pores of the porous structure prepared by a metal, a ceramic or a polymer with a biodegradable magnesium-based alloy. Mechanical properties of the composite implant of the present invention are improved because a magnesium-based alloy filled in its pores increases the strength of a porous structure comprised of a metal, a ceramic or a polymer. Further, it can be expected that the magnesium-based alloy filled in the porous structure is decomposed in a living body, thus increasing bone formation rate. Accordingly bone tissue can be rapidly formed because the composite implant of the present invention has high strength and excellent interfacial force between the composite implant and bone tissue, compared to conventional porous materials.Type: ApplicationFiled: March 18, 2009Publication date: March 3, 2011Applicant: U&I CORPORATIONInventors: Hyun-Kwang Seok, Seok-Jo Yang, Yu-Chan Kim, Ja-Kyo Koo
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Publication number: 20100075162Abstract: The present invention provides an implant consisting of a biodegradable magnesium-based alloy or partially applied with the magnesium-based alloy, and a method for manufacturing the same. The implant according to the present invention is biodegradable, in which its biodegradation rate can be easily controlled, and the implant has excellent strength and interfacial strength to an osseous tissue.Type: ApplicationFiled: September 21, 2007Publication date: March 25, 2010Inventors: Seok-Jo Yang, Hyun-Kwang Seok, Jung-Gu Kim, Tae-Hong Lim, Kyeong-Ho Baik, Yu-Chan Kim, Ja-Kyo Koo
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Publication number: 20080208076Abstract: Disclosed are a barb-wired single crystalline silicon micro needle and a biopsy method and a medicine injecting method using the same. The micro needle comprises a main body part, at least one extension part formed on a side surface of the main body part, and a protrusion part protruded from both side surfaces of the extension part. A medicine storage is formed on a surface of the main body part. A fluid passage is formed in the extension part and the main body part. It is easy to pick the tissue sample with the protrusion part just by inserting and extracting the extension part of the micro needle into and from the tissue for a biopsy. Therefore, the biopsy procedures can be simplified. In addition, the medicine in the storage can be injected into the tissue via the fluid passage.Type: ApplicationFiled: February 12, 2008Publication date: August 28, 2008Applicant: Seoul National University Industry FoundationInventors: Dong-il Cho, Seung Joon Paik, Jung Min Lim, Ah Ra Lee, Sang Won Byun, Kyo-In Koo
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Publication number: 20080167576Abstract: A micro spike having a three-dimensional structure made of single crystalline silicon and being capable of picking an enough amount of a tissue to examine the tissue while minimizing an examinee's pain with a minimal invasion when picking the tissue and a method of manufacturing the same are disclosed. The micro spike comprising: a main body part; extension parts inserted into a tissue when picking the tissue sample and integratedly extended from upper and lower parts of one side of the main body part; and a protrusion part integratedly protruded from at least one of side surfaces of the extension parts and inserted into the tissue to pick the tissue sample together with the extension parts when picking the living tissue sample.Type: ApplicationFiled: December 7, 2007Publication date: July 10, 2008Applicant: Seoul National University Industry FoundationInventors: Dongil Cho, Ahra Lee, Seung-Joon Paik, Myoung-Jun Jeong, HyunMin Choi, Jung-Min Lim, Sunkil Park, Kyo-In Koo, Jae Won Ban
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Publication number: 20060281211Abstract: A liquid crystal display panel includes an upper substrate, a lower substrate facing the upper substrate, a gate line and a data line on an upper surface of the lower substrate facing the upper substrate, the gate line and the data line cross each other to define a cell area, a pixel electrode formed in the cell area, a dummy source/drain electrode pattern over the gate line, and a ball spacer within the dummy source/drain electrode pattern, the ball spacer maintaining a cell gap between the upper substrate and the lower substrate.Type: ApplicationFiled: May 19, 2006Publication date: December 14, 2006Applicant: LG.PHILIPS LCD CO., LTDInventors: Sung Yoon, Se Shin, Bong Kim, Seung Lee, Kyo Koo, Hyeon Seo, Dhang Kwon