Patents by Inventor Keun-Chang Cho
Keun-Chang Cho 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: 11634679Abstract: Provided herein is a pipette tip for electroporation including an outer surface, a void located within the outer surface, and a conductor located at least partially on or within the outer surface, in electrical communication with at least a portion of the outer surface and the void. Further provided herein is a pipette tip for electroporation including a body, a connector, and an elongated part. The connector is located at the distal end of the body and further includes at least one connecting post, a connecting part in mechanical communication with the connector, and a conductor located at least partially on or within the connector, wherein the conductor surrounds at least a portion of the connecting post. The elongated part also has a void and is located at the distal end of the connector. The void of the body, connector, and elongated part are in fluid communication.Type: GrantFiled: September 11, 2019Date of Patent: April 25, 2023Assignee: LIFE TECHNOLOGIES CORPORATIONInventors: Jun-Keun Chang, Keun-Chang Cho, Chan-Il Chung, Neon-Cheol Jung, Seung Gin Huh
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Publication number: 20220154128Abstract: An electroporation apparatus comprising an elongated hollow member in order to provide a uniform electric field during electroporation, wherein specifically, electroporation is carried out by applying electric pulses through a couple of electrodes from both end parts of the elongated hollow member, after the hollow member is charged with fluid specimen including cells and material which would be injected into the cells.Type: ApplicationFiled: September 27, 2021Publication date: May 19, 2022Inventors: Jun-Keun CHANG, Keun-Chang CHO, Chan-II CHUNG, Young-Shik SHIN, Jeong-Ah KIM, Neon-Cheol JUNG
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Patent number: 11130936Abstract: An electroporation apparatus comprising an elongated hollow member in order to provide a uniform electric field during electroporation, wherein specifically, electroporation is carried out by applying electric pulses through a couple of electrodes from both end parts of the elongated hollow member, after the hollow member is charged with fluid specimen including cells and material which would be injected into the cells.Type: GrantFiled: January 12, 2018Date of Patent: September 28, 2021Assignee: LIFE TECHNOLOGIES HOLDINGS PTE LIMITEDInventors: Jun-Keun Chang, Keun-Chang Cho, Chan-Il Chung, Young-Shik Shin, Jeong-Ah Kim, Neon-Cheol Jung
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Publication number: 20200080042Abstract: Provided herein is a pipette tip for electroporation including an outer surface, a void located within the outer surface, and a conductor located at least partially on or within the outer surface, in electrical communication with at least a portion of the outer surface and the void. Further provided herein is a pipette tip for electroporation including a body, a connector, and an elongated part. The connector is located at the distal end of the body and further includes at least one connecting post, a connecting part in mechanical communication with the connector, and a conductor located at least partially on or within the connector, wherein the conductor surrounds at least a portion of the connecting post. The elongated part also has a void and is located at the distal end of the connector. The void of the body, connector, and elongated part are in fluid communication.Type: ApplicationFiled: September 11, 2019Publication date: March 12, 2020Inventors: Jun-Keun CHANG, Keun-Chang CHO, Chan-Il CHUNG, Neon-Cheol JUNG, Seung Gin HUH
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Patent number: 10450543Abstract: Provided herein is a pipette tip for electroporation including an outer surface, a void located within the outer surface, and a conductor located at least partially on or within the outer surface, in electrical communication with at least a portion of the outer surface and the void. Further provided herein is a pipette tip for electroporation including a body, a connector, and an elongated part. The connector is located at the distal end of the body and further includes at least one connecting post, a connecting part in mechanical communication with the connector, and a conductor located at least partially on or within the connector, wherein the conductor surrounds at least a portion of the connecting post. The elongated part also has a void and is located at the distal end of the connector. The void of the body, connector, and elongated part are in fluid communication.Type: GrantFiled: November 21, 2016Date of Patent: October 22, 2019Assignee: LIFE TECHNOLOGIES CORPORATIONInventors: Jun-Keun Chang, Keun-Chang Cho, Chan-Il Chung, Neon-Cheol Jung, Seung Gin Huh
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Patent number: 10443027Abstract: An apparatus for clearing tissue using electrophoresis according to an embodiment of the present invention comprises: a chamber which can contain therein a buffer solution and the biological tissue and has an inlet port and an outlet port for circulating the buffer solution; a support member, located within the chamber, for supporting the biological tissue; and electrodes located within the chamber and formed separately of a first electrode and a second electrode which correspond to each other. With the apparatus, it is possible to minimize the degradation of decomposition efficiency and quickly clear the tissue compared to a conventional apparatus.Type: GrantFiled: January 9, 2017Date of Patent: October 15, 2019Assignee: LOGOS BIOSYSTEMS, INC.Inventors: Keun Chang Cho, Neon Cheol Jung
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Publication number: 20190040350Abstract: An electroporation apparatus comprising an elongated hollow member in order to provide a uniform electric field during electroporation, wherein specifically, electroporation is carried out by applying electric pulses through a couple of electrodes from both end parts of the elongated hollow member, after the hollow member is charged with fluid specimen including cells and material which would be injected into the cells.Type: ApplicationFiled: January 12, 2018Publication date: February 7, 2019Inventors: Jun-Keun CHANG, Keun-Chang CHO, Chan-Il CHUNG, Young-Shik SHIN, Jeong-Ah KIM, Neon-Cheol JUNG
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Patent number: 9890355Abstract: An electroporation apparatus comprising an elongated hollow member in order to provide a uniform electric field during electroporation, wherein specifically, electroporation is carried out b applying electric pulses through a couple of electrodes from both end parts of the elongated hollow member, after the hollow member is charged with fluid specimen including cells and material which would be injected into the cells.Type: GrantFiled: November 14, 2014Date of Patent: February 13, 2018Assignee: Life Technologies Holdings PTE LimitedInventors: Jun-Keun Chang, Keun-Chang Cho, Chan-Il Chung, Young-Shik Shin, Jeong-Ah Kim, Neon-Cheol Jung
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Publication number: 20170166854Abstract: Provided herein is a pipette tip for electroporation including an outer surface, a void located within the outer surface, and a conductor located at least partially on or within the outer surface, in electrical communication with at least a portion of the outer surface and the void. Further provided herein is a pipette tip for electroporation including a body, a connector, and an elongated part. The connector is located at the distal end of the body and further includes at least one connecting post, a connecting part in mechanical communication with the connector, and a conductor located at least partially on or within the connector, wherein the conductor surrounds at least a portion of the connecting post. The elongated part also has a void and is located at the distal end of the connector. The void of the body, connector, and elongated part are in fluid communication.Type: ApplicationFiled: November 21, 2016Publication date: June 15, 2017Inventors: Jun-Keun CHANG, Keun-Chang CHO, Chan-Il CHUNG, Neon-Cheol JUNG, Seung Gin HUH
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Patent number: 9523071Abstract: Provided herein is a pipette tip (600) for electroporation including an outer surface, a void (611) located within the outer surface, and a conductor (622) located at least partially on or within the outer surface, in electrical communication with at least a portion of the outer surface and the void. Further provided herein is a pipette tip for electroporation including a body, a connector (620), and an elongated part (630). The connector is located at the distal end of the body and further includes at least one connecting post, a connecting part in mechanical communication with the connector, and a conductor located at least partially on or within the connector, wherein the conductor surrounds at least a portion of the connecting post. The elongated part also has a void and is located at the distal end of the connector. The void of the body, connector, and elongated part are in fluid communication.Type: GrantFiled: April 15, 2009Date of Patent: December 20, 2016Assignee: Life Technologies CorporationInventors: Jun-Keun Chang, Keun-Chang Cho, Chan-Il Chung, Neon-Cheol Jung, Seung Gin Huh
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Patent number: 9046489Abstract: An excitation light from a first light source is adapted to be irradiated to a subject without passing through an objective lens so that the first light source and the subject may be arranged to be adjacent to each other. As a result, an excitation light having a high intensity of radiation may be irradiated to the subject to obtain a strong fluorescence signal. In addition, since the optical path of the excitation light from the first light source and the optical path of the fluorescent emission light emitted from the first dichroic mirror and the white light do not coincide with each other, a high S/N ratio may be obtained.Type: GrantFiled: March 25, 2014Date of Patent: June 2, 2015Assignee: LOGOS BIOSYSTEMS, INC.Inventors: Hyun Chang Lim, Neon Cheol Jung, Keun Chang Cho
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Publication number: 20150093813Abstract: An electroporation apparatus comprising an elongated hollow member in order to provide a uniform electric field during electroporation, wherein specifically, electroporation is carried out by applying electric pulses through a couple of electrodes from both end parts of the elongated hollow member, after the hollow member is charged with fluid specimen including cells and material which would be injected into the cells.Type: ApplicationFiled: November 14, 2014Publication date: April 2, 2015Inventors: Jun-Keun Chang, Keun-Chang CHO, Chan-Il CHUNG, Young-Shik SHIN, Jeong-Ah KIM, Neon-Cheol JUNG
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Patent number: 8932850Abstract: An electroporation apparatus comprising an elongated hollow member in order to provide a uniform electric field during electroporation, wherein specifically, electroporation is carried out by applying electric pulses through a couple of electrodes from both end parts of the elongated hollow member, after the hollow member is charged with fluid specimen including cells and material which would be injected into the cells.Type: GrantFiled: June 13, 2005Date of Patent: January 13, 2015Assignee: Invitrogen Singapore Pte. Ltd.Inventors: Jun-Keun Chang, Keun-Chang Cho, Chan-Il Chung, Young-Shik Shin, Jeong-Ah Kim, Neon-Cheol Jung
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Publication number: 20140291547Abstract: An excitation light from a first light source is adapted to be irradiated to a subject without passing through an objective lens so that the first light source and the subject may be arranged to be adjacent to each other. As a result, an excitation light having a high intensity of radiation may be irradiated to the subject to obtain a strong fluorescence signal. In addition, since the optical path of the excitation light from the first light source and the optical path of the fluorescent emission light emitted from the first dichroic mirror and the white light do not coincide with each other, a high S/N ratio may be obtained.Type: ApplicationFiled: March 25, 2014Publication date: October 2, 2014Applicant: Logos Biosystems, Inc.Inventors: Hyun Chang LIM, Neon Cheol JUNG, Keun Chang CHO
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Patent number: 8808642Abstract: Disclosed is a microchip. The microchip of the present invention is characterized by comprising: a first plate; and a second plate coupled to the first plate to form a channel, wherein the first plate comprises: a channel cover part; a first connection part spaced apart from the outer periphery of the channel cover part by a certain distance; and a tensile strength generation connecting part for mutually connecting the channel cover part and the first connection part so that the channel cover part elastically contacts the channel region formed on the second plate when the first plate is coupled to the second plate. According to the present invention, the channel cover part forming the channel elastically contacts the channel region formed on the second plate, thereby providing a microchip capable of providing a channel having a stable structure.Type: GrantFiled: November 18, 2011Date of Patent: August 19, 2014Assignee: Logos Biosystems, Inc.Inventors: Hyun Chang Lim, Neon Cheol Jung, Keun Chang Cho
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Publication number: 20140178267Abstract: Disclosed is a microchip. The microchip of the present invention is characterized by comprising: a first plate; and a second plate coupled to the first plate to form a channel, wherein the first plate comprises: a channel cover part; a first connection part spaced apart from the outer periphery of the channel cover part by a certain distance; and a tensile strength generation connecting part for mutually connecting the channel cover part and the first connection part so that the channel cover part elastically contacts the channel region formed on the second plate when the first plate is coupled to the second plate. According to the present invention, the channel cover part forming the channel elastically contacts the channel region formed on the second plate, thereby providing a microchip capable of providing a channel having a stable structure.Type: ApplicationFiled: November 18, 2011Publication date: June 26, 2014Applicant: LOGOS BIOSYSTEMS, INC.Inventors: Hyun Chang Lim, Neon Cheol Jung, Keun Chang Cho
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Publication number: 20110263005Abstract: Provided herein is a pipette tip (600) for electroporation including an outer surface, a void (611) located within the outer surface, and a conductor (622) located at least partially on or within the outer surface, in electrical communication with at least a portion of the outer surface and the void. Further provided herein is a pipette tip for electroporation including a body, a connector (620), and an elongated part (630). The connector is located at the distal end of the body and further includes at least one connecting post, a connecting part in mechanical communication with the connector, and a conductor located at least partially on or within the connector, wherein the conductor surrounds at least a portion of the connecting post. The elongated part also has a void and is located at the distal end of the connector. The void of the body, connector, and elongated part are in fluid communication.Type: ApplicationFiled: April 15, 2009Publication date: October 27, 2011Applicant: LIFE TECHNOLOGIES CORPORATIONInventors: Jun-Keun Chang, Keun-Chang Cho, Chan-Il Chung, Neon-Cheol Jung, Seung Gin Huh
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Publication number: 20110235169Abstract: Disclosed is a microscope module. The microscope module includes an objective lens magnifying an image of a sample subject for observation; an observation part for observing the image of the sample magnified through the objective lens; and a reflective mirror provided between the objective lens and the sample such that the vertical distance between the sample and the objective lens is substantially reduced. Since the reflective lens is disposed between the objective lens and the observation part, the working distance from the sample to the objective lens is substantially reduced, so that the height of the microscope is remarkably reduced. Thus, the microscope may be used in a place with vertical spatial limitations.Type: ApplicationFiled: March 9, 2011Publication date: September 29, 2011Applicant: LOGOS BIOSYSTEMS, INC.Inventors: Hyun Chang LIM, Neon Cheol JUNG, Keun Chang CHO
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Patent number: 7751040Abstract: Disclosed is a microchip for a flowcytometer. A channel is expanded around a point, on which laser beams emitted from an optical unit are focused, so that focused sample particles slow down when they pass the expanded portion. This improves the detection intensity of sample particles.Type: GrantFiled: September 27, 2006Date of Patent: July 6, 2010Assignees: Digital Bio Technology Co., Ltd., Seoul National University Industry FoundationInventors: Jun-Keun Chang, Hyun-Woo Bang, Ho-Young Yun, Keun-Chang Cho, Chan-Il Chung
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Publication number: 20080218753Abstract: Disclosed is a microchip for a flowcytometer. A channel is expanded around a point, on which laser beams emitted from an optical unit are focused, so that focused sample particles slow down when they pass the expanded portion. This improves the detection intensity of sample particles.Type: ApplicationFiled: September 27, 2006Publication date: September 11, 2008Applicant: DIGITAL BIO TECHNOLOGY CO., LTD.Inventors: Jun-Keun Chang, Hyun-Woo Bang, Ho-Young Yun, Keun-Chang Cho, Chan-Il Chung