Patents by Inventor Bong-Su Cheong
Bong-Su Cheong 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: 11969011Abstract: A cigarette includes a tobacco rod, a front end plug positioned at a front end of the tobacco rod, a filter rod positioned at a rear end of the tobacco rod, and a wrapper surrounding the tobacco rod, the front end plug, and the filter rod and including at least one perforation formed in an area of the wrapper to allow air to flow to the inside of the wrapper.Type: GrantFiled: November 13, 2019Date of Patent: April 30, 2024Assignee: KT&G CORPORATIONInventors: Jung Seop Hwang, Dong Kyun Ko, Jae Sung Noh, Bong Su Cheong, Sang Won Choi
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Patent number: 11944118Abstract: Provided is an aerosol-generating article including a wrapper which is discolored as the aerosol-generating material is heated, the aerosol-generating article including: a tobacco rod; a front-end plug arranged on a side of the tobacco rod; a filter rod arranged on the other side of the tobacco rod; and the wrapper surrounding the tobacco rod, the front-end plug, and the filter rod, wherein the wrapper includes a thermochromic material which is heated and discolored by an aerosol-generating device when the aerosol-generating article is inserted into the aerosol-generating device.Type: GrantFiled: November 13, 2019Date of Patent: April 2, 2024Assignee: KT&G CORPORATIONInventors: Bong Su Cheong, Dong Kyun Ko, Jae Sung Noh, Sang Won Choi, Jung Seop Hwang
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Patent number: 11882869Abstract: A cigarette according to an embodiment may include a cigarette rod including an aerosol-generating material; a filter rod located at one end of the cigarette rod and including a first segment and a second segment; a front end plug located at the other end of the cigarette rod; and an outer wrapper wrapping the cigarette rod, the filter rod and the front end plug, wherein the outer wrapper has a basis weight of 57 g/m2 to 63 g/m2 and a thickness of 64 ?m to 70 ?m to increase the strength of the cigarette.Type: GrantFiled: November 12, 2019Date of Patent: January 30, 2024Assignee: KT&G CORPORATIONInventors: Jung Seop Hwang, Dong Kyun Ko, Jae Sung Noh, Bong Su Cheong, Sang Won Choi
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Patent number: 11877592Abstract: Provided is an aerosol generating article including a filter segment in which a channel is formed, the aerosol generating article including: a front-end filter segment arranged at an upstream end that is to be inserted into an aerosol generating device; a rear-end filter segment arranged at a downstream end that is to contact a mouth of a user; and a tobacco rod arranged between the front-end filter segment and the rear-end filter segment, wherein at least one filter segment of the front-end filter segment and the rear-end filter segment includes: at least one channel extending from the upstream end toward the downstream end; and a filter structure filtering out some components of aerosol, and wherein the at least one filter segment has a suction resistance corresponding to a ratio between a cross-sectional area of the at least one channel and a cross-sectional area of the filter structure.Type: GrantFiled: November 13, 2019Date of Patent: January 23, 2024Assignee: KT&G CORPORATIONInventors: Bong Su Cheong, Dong Kyun Ko, Jae Sung Noh, Sang Won Choi, Jung Seop Hwang
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Publication number: 20230217987Abstract: The present disclosure relates to a smoking article including biodegradable cigarette paper.Type: ApplicationFiled: March 16, 2021Publication date: July 13, 2023Applicant: KT&G CORPORATIONInventors: Ki Jin AHN, Man Seok SEO, Soo Ho KIM, Jong Yeol KIM, Kyeng Bae MA, Bong Su CHEONG
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Publication number: 20220386686Abstract: A method of manufacturing a wrapper for an aerosol generating article includes applying an adhesive to one surface of a metal layer and attaching a first paper layer thereto, applying the adhesive to the other surface of the metal layer and attaching thereto a second paper layer different from the first paper layer, and drying the adhesive applied between the metal layer and the first paper layer and the adhesive applied between the metal layer and the second paper layer.Type: ApplicationFiled: October 13, 2021Publication date: December 8, 2022Applicant: KT&G CORPORATIONInventors: Ki-Jin AHN, Jong Yeol KIM, Soo Ho KIM, Kyengbae MA, Man Seok SEO, Jin Chul YANG, Bong Su CHEONG
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Publication number: 20220304370Abstract: According to embodiments of the present invention, there is provided a tube filter production device including a tube filter exterior forming case into which one or more filter tows are introduced and from which a tubular rod formed from the one or more filter tows is discharged, a tube filter forming bar extending in an inner region of the tube filter exterior forming case in order to form a hollow of the tubular rod, and a steam chamber having at least one steam nozzle in communication with the inner region of the tube filter exterior forming case and configured to supply steam to the one or more filter tows through the steam nozzle, wherein the tube filter forming bar has a duct extending in a longitudinal direction of the tube filter forming bar and a flavoring nozzle formed in a downstream end region of the tube filter forming bar to deliver a flavoring liquid or a moisturizing liquid supplied through the duct to the hollow of the tubular rod.Type: ApplicationFiled: August 27, 2020Publication date: September 29, 2022Applicant: KT&G CORPORATIONInventors: Jin Chul YANG, Jong Yeol KIM, Soo Ho KIM, Bong Su CHEONG, Ki Jin AHN
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Publication number: 20220287360Abstract: Provided herein are a smoking article filter and a smoking article including the same. The filter according to some embodiments of the present disclosure includes a filter plug including a filter material and a liquid material added to the filter plug. Here, a molecular weight of a hydrophilic group of the filter material may be larger than or equal to a molecular weight of a hydrophobic group thereof, and in this case, changes in physical properties of the filter due to adding the liquid material may be minimized.Type: ApplicationFiled: March 8, 2021Publication date: September 15, 2022Applicant: KT&G CORPORATIONInventors: Bong Su CHEONG, Jong Yeol KIM, Jin Chul YANG
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Publication number: 20220132913Abstract: A method of manufacturing a smoking article including a tube filter includes preparing a smoking material portion, a first tube filter flavored by a first flavoring liquid, and a mouthpiece flavored by a second flavoring liquid; and combining and packaging the smoking material portion, the first tube filter, and the mouthpiece with a wrapper, wherein the preparing comprises applying the first flavoring liquid inside the first tube filter through a hollow of the first tube filter.Type: ApplicationFiled: November 27, 2020Publication date: May 5, 2022Applicant: KT&G CORPORATIONInventors: Jin Chul YANG, Jong Yeol KIM, Ki Jin AHN, Bong Su CHEONG, Hee Tae JUNG
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Publication number: 20210337859Abstract: A smoking article including a multilayer medium portion is provided. The smoking article includes a filter portion and a medium portion including a first smoking material portion and a second smoking material portion. The first smoking material portion is surrounded entirely or partially by the second smoking material portion in a longitudinal direction of the medium portion, and tobacco raw materials included in the first smoking material portion and tobacco raw materials included in the second smoking material portion are different.Type: ApplicationFiled: August 6, 2020Publication date: November 4, 2021Applicant: KT&G CORPORATIONInventors: Bong Su CHEONG, Jong Yeol KIM
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Publication number: 20210307380Abstract: Provided is an aerosol-generating article including a wrapper which is discolored as the aerosol-generating material is heated, the aerosol-generating article including: a tobacco rod; a front-end plug arranged on a side of the tobacco rod; a filter rod arranged on the other side of the tobacco rod; and the wrapper surrounding the tobacco rod, the front-end plug, and the filter rod, wherein the wrapper includes a thermochromic material which is heated and discolored by an aerosol-generating device when the aerosol-generating article is inserted into the aerosol-generating device.Type: ApplicationFiled: November 13, 2019Publication date: October 7, 2021Applicant: KT&G CORPORATIONInventors: Bong Su CHEONG, Dong Kyun KO, Jae Sung NOH, Sang Won CHOI, Jung Seop HWANG
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Patent number: 11103003Abstract: This invention relates to a lyocell material for a tobacco filter and a method of manufacturing the same, and more particularly to a lyocell fiber having a modified cross-section for a tobacco filter, wherein the cross-sectional shape of a monofilament contained in a lyocell fiber is controlled to increase the external surface area of the fiber, after which then crimps are formed, thereby exhibiting properties equal or superior to those of conventional lyocell materials, even when used in a small amount.Type: GrantFiled: June 30, 2015Date of Patent: August 31, 2021Assignees: KOLON INDUSTRIES, INC., KT&G CORPORATIONInventors: Jong Cheol Jeong, Sang Woo Jin, Sang Yoel Lee, Woo Chul Kim, Sang Mok Lee, Jong Yeol Kim, Soo Ho Kim, Bong Su Cheong, Hyun Suk Cho, Sung Jong Ki
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Publication number: 20210259303Abstract: A cigarette includes a tobacco rod, a support segment located at a downstream end of the tobacco rod, a cooling segment located at a downstream end of the support segment, and a mouthpiece located at a downstream end of the cooling segment. The cigarette further includes a corrugated inner wrapper configured to wrap the mouthpiece and an outer wrapper configured to wrap the corrugated inner wrapper.Type: ApplicationFiled: July 2, 2019Publication date: August 26, 2021Applicant: KT&G CORPORATIONInventors: Jung Seop HWANG, John Tae LEE, Bong Su CHEONG, Sung Jong KI, Yong Sook JIN
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Publication number: 20210254287Abstract: A wrapper according to an aspect includes a pulp layer and metal particles uniformly distributed inside the pulp layer, wherein the metal particles contain a metal flake paste.Type: ApplicationFiled: July 3, 2019Publication date: August 19, 2021Applicant: KT&G CORPORATIONInventors: Yong Sook JIN, John Tae LEE, Bong Su CHEONG, Jung Seop HWANG, Sung Jong KI
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Publication number: 20210227876Abstract: Disclosed is a cigarette including a tobacco rod, a supporting segment positioned at a downstream end of the tobacco rod, a cooling segment positioned at a downstream end of the supporting segment, and a mouthpiece positioned at a downstream end of the cooling segment. The cigarette according to the present embodiment may include a plurality of air channels formed along a longitudinal direction of the cigarette and the cooling segment having porosity of 50% or less.Type: ApplicationFiled: July 2, 2019Publication date: July 29, 2021Applicant: KT&G CORPORATIONInventors: Jung Seop HWANG, John Tae LEE, Bong Su CHEONG, Sung Jong KI, Yong Sook JIN
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Publication number: 20210045451Abstract: A cigarette includes a tobacco rod, a front end plug disposed at a front end of the tobacco rod, a filter rod disposed at a rear end of the tobacco rod, and an electromagnetic inducer provided in the front end plug.Type: ApplicationFiled: November 13, 2019Publication date: February 18, 2021Applicant: KT&G CORPORATIONInventors: Sang Won CHOI, Dong Kyun KO, Jae Sung NOH, Bong Su CHEONG, Jung Seop HWANG
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Publication number: 20210030056Abstract: A cigarette according to an embodiment may include a cigarette rod including an aerosol-generating material; a filter rod located at one end of the cigarette rod and including a first segment and a second segment; a front end plug located at the other end of the cigarette rod; and an outer wrapper wrapping the cigarette rod, the filter rod and the front end plug, wherein the outer wrapper has a basis weight of 57 g/m2 to 63 g/m2 and a thickness of 64 ?m to 70 ?m to increase the strength of the cigarette.Type: ApplicationFiled: November 12, 2019Publication date: February 4, 2021Applicant: KT&G CORPORATIONInventors: Jung Seop HWANG, Dong Kyun KO, Jae Sung NOH, Bong Su CHEONG, Sang Won CHOI
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Publication number: 20210000175Abstract: Provided is a cigarette including: a tobacco rod; a first air flow delivery element adjacent to a first end of the tobacco rod and having a first porosity; and a second air flow delivery element adjacent to a second end of the tobacco rod and having a second porosity greater than or equal to the first porosity, wherein the second porosity is greater than or equal to 30%.Type: ApplicationFiled: November 13, 2019Publication date: January 7, 2021Applicant: KT&G CORPORATIONInventors: Jung Seop HWANG, Dong Kyun KO, Jae Sung NOH, Bong Su CHEONG, Sang Won CHOI
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Publication number: 20210000180Abstract: A cigarette includes a tobacco rod, a front end plug positioned at a front end of the tobacco rod, a filter rod positioned at a rear end of the tobacco rod, and a wrapper surrounding the tobacco rod, the front end plug, and the filter rod and including at least one perforation formed in an area of the wrapper to allow air to flow to the inside of the wrapper.Type: ApplicationFiled: November 13, 2019Publication date: January 7, 2021Applicant: KT&G CORPORATIONInventors: Jung Seop HWANG, Dong Kyun KO, Jae Sung NOH, Bong Su CHEONG, Sang Won CHOI
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Publication number: 20200359677Abstract: An aerosol-generating article according to one embodiment includes a medium portion; a first hollow tube disposed to face a downstream end of the medium portion and including a first hollow; a cooling portion disposed next to a downstream side of the first hollow tube, including a second hollow tube including a second hollow having a diameter equal to or greater than a diameter of the first hollow and a cooling element; a filter portion disposed to face the downstream end of the cooling portion; and a wrapper wrapping at least a portion of the medium portion, the first hollow tube, the cooling portion, and the filter portion.Type: ApplicationFiled: November 15, 2019Publication date: November 19, 2020Applicant: KT&G CORPORATIONInventors: Bong Su CHEONG, Dong Kyun KO, Jae Sung NOH, Sang Won CHOI, Jung Seop HWANG