Patents Assigned to KT & G Corporation
  • Publication number: 20250040604
    Abstract: According to various embodiments, an aerosol generating device for generating an aerosol by heating a cigarette includes a pipe including an opening into which the cigarette is inserted, a first surface enclosing at least a partial region of an outer circumferential surface of the cigarette when the cigarette is inserted, and a second surface opposite to the first surface, a heater provided on the second surface of the pipe and configured to heat the pipe, and an insulating layer configured to provide electrical insulation and provided between the heater and the second surface of the pipe, wherein the heater includes a heating wire printed directly on the second surface and the insulating layer in a pattern enclosing at least a partial region of the second surface of the pipe.
    Type: Application
    Filed: May 4, 2023
    Publication date: February 6, 2025
    Applicant: KT&G CORPORATION
    Inventors: Wonkyeong LEE, Min Kyu KIM, Paul Joon SUNWOO
  • Publication number: 20250040592
    Abstract: The present disclosure provides a smoking article filter which includes lyocell tow including lyocell fibers, a binder solution, and filter wrapping paper, and has 90% or higher biodegradation within 6 months according to the American Society for Testing and Materials (ASTM) D6691 under marine conditions at 30° C., and a smoking article including the smoking article filter.
    Type: Application
    Filed: June 7, 2023
    Publication date: February 6, 2025
    Applicants: KT&G CORPORATION, KOLON INDUSTRIES, INC.
    Inventors: Sung Hoon HA, Jin Chul YANG, Kyeng Bae MA, Bong Su CHEONG, Seung Dong SEO, Jeong Hun LEE, Jong Cheol JEONG, Sang Woo JIN, Yeong Nam HWANG
  • Publication number: 20250040594
    Abstract: A cigarette filter which includes lyocell tow made of a plurality of lyocell fibers and a binder configured to bond the lyocell fibers to each other is provided. The cigarette filter according to one embodiment of the present disclosure reduces each of tar and nicotine, which are delivered through cigarette smoke, by 70% to 95%. The cigarette filter according to one embodiment of the present disclosure has a resistance to draw of 80 mmWG to 200 mmWG. The cigarette filter according to one embodiment of the present disclosure is filled with the lyocell tow at a packing density of 0.2 g/mL to 0.6 g/mL. The cigarette filter according to one embodiment of the present disclosure addresses basic material-related problems, such as low hardness, of the lyocell tow and, further, has excellent filtration functionality as a filter.
    Type: Application
    Filed: February 3, 2023
    Publication date: February 6, 2025
    Applicants: KT&G CORPORATION, KOLON INDUSTRIES, INC.
    Inventors: Sung Hoon HA, Kyeng Bae MA, Jin Chul YANG, Jun Hui LEE, Bong Su CHEONG, Seung Dong SEO, Jeong Hun LEE, Jong Cheol JEONG, Sang Woo JIN, Yeong Nam HWANG
  • Patent number: 12213520
    Abstract: The liquid cartridge includes a storage portion which is configured to store an aerosol-generating substrate in a liquid state and includes an air hole through which air enters, a wick which is configured to absorb the stored aerosol-generating substrate, and a vaporizing portion which is configured to vaporize the aerosol-generating substrate absorbed through the wick to generate an aerosol.
    Type: Grant
    Filed: August 21, 2020
    Date of Patent: February 4, 2025
    Assignee: KT & G CORPORATION
    Inventors: Chul Ho Jang, Gyoung Min Go, Sung Hwan Kim, Yong Joon Jang
  • Patent number: 12213521
    Abstract: An aerosol generating article includes: a tobacco element; and a pouch configured to wrap the tobacco element, and discharge, to the outside, an aerosol generated by the aerosol generating article being heated, wherein the pouch is impregnated with a moisturizer of about 10 parts by weight to about 30 parts by weight with respect to 100 parts by weight of the tobacco element.
    Type: Grant
    Filed: October 15, 2021
    Date of Patent: February 4, 2025
    Assignee: KT&G CORPORATION
    Inventor: Eun Mi Jeoung
  • Publication number: 20250031759
    Abstract: A heating structure configured to generate heat using surface plasmon resonance (SPR) includes a foam, wherein the foam may include a plurality of metal particles configured to generate heat by SPR, and a plurality of pores between the plurality of metal particles.
    Type: Application
    Filed: May 4, 2023
    Publication date: January 30, 2025
    Applicant: KT&G CORPORATION
    Inventors: Wonkyeong LEE, Paul Joon SUNWOO
  • Publication number: 20250031760
    Abstract: An aerosol generating device is provided. The aerosol generating device includes: a body comprising an insertion space; a heater assembly having thermal conductivity and configured to heat the insertion space; a first board installed at the body; and a bridge electrically connecting the heater assembly and the first board, wherein a temperature coefficient of resistance of the bridge is lower than a temperature coefficient of resistance of the heater assembly.
    Type: Application
    Filed: November 11, 2022
    Publication date: January 30, 2025
    Applicant: KT&G CORPORATION
    Inventors: Jueon PARK, Taehun KIM, Hyungjin JUNG
  • Patent number: 12207688
    Abstract: An aerosol generating device and a method of controlling thereof are provided. The aerosol generating device may include a heater configured to heat an aerosol generating material, a battery configured to supply power to the heater, a micro controller unit (MCU) configured to control an operation of the heater, and a protection circuit controller. The protection circuit controller may be configured to acquire at least one parameter related to the operation of the heater to detect and control an abnormal operation of the heater based on the at least one parameter.
    Type: Grant
    Filed: December 21, 2020
    Date of Patent: January 28, 2025
    Assignee: KT&G CORPORATION
    Inventor: Hun Il Lim
  • Patent number: 12207687
    Abstract: A method of controlling an aerosol generating device includes measuring a temperature of a heater, selecting one of a plurality of temperature correction algorithms, based on the measured temperature, and correcting the measured temperature by applying the selected temperature correction algorithm. In addition, a method of controlling an aerosol generating device includes measuring a temperature of a heater operating in an operation section including a plurality of sections, determining, from among the plurality of sections, a current section in which the heater is operating, selecting one of a plurality of temperature correction algorithms, based on the selected current section of the heater, and correcting the measured temperature of the heater by applying the selected temperature correction algorithm.
    Type: Grant
    Filed: October 22, 2019
    Date of Patent: January 28, 2025
    Assignee: KT&G CORPORATION
    Inventors: Hyung Jin Jung, Tae Hun Kim, Hun Il Lim, Jae Sung Choi, Jung Ho Han
  • Patent number: 12201162
    Abstract: An aerosol-generating article includes a sealed container; and a composition contained in the sealed container and including a tobacco material and a vaporizing agent, wherein the tobacco material includes an aerosol-generating material and tobacco leaves, and the vaporizing agent generates oxidizing heat when exposed to air such that an aerosol may be generated without a heating device or electric power.
    Type: Grant
    Filed: October 13, 2020
    Date of Patent: January 21, 2025
    Assignee: KT&G CORPORATION
    Inventors: Jeong Hoo Kim, Woo Seok Chung
  • Publication number: 20250017275
    Abstract: An aerosol generating module according to various embodiments includes a heating unit and an atomizing unit disposed adjacent to the heating unit and including an aerosol forming substrate, wherein the heating unit includes a first reservoir including a first material, a second reservoir including a second material that generates heat by reacting with the first material, and a barrier plate disposed between the first reservoir and the second reservoir and formed of an impermeable material, and the aerosol forming substrate is heated by heat generated by mixing the first material and the second material.
    Type: Application
    Filed: May 11, 2023
    Publication date: January 16, 2025
    Applicant: KT&G CORPORATION
    Inventors: Wonkyeong LEE, Min Kyu KIM, Paul Joon SUNWOO
  • Publication number: 20250017280
    Abstract: An aerosol-generating device is disclosed. The aerosol-generating device may comprises, a body comprising an insertion space; a sensor installed at the body and configured to detect an electromagnetic characteristic of surroundings; an upper case detachably coupled to the body and comprising an insertion hole corresponding to an opening of the insertion space; and a grounding board coupled to the upper case and extending along a circumference of the upper case and configured to electrically ground the sensor.
    Type: Application
    Filed: October 12, 2022
    Publication date: January 16, 2025
    Applicant: KT&G CORPORATION
    Inventor: Taehun KIM
  • Patent number: 12193484
    Abstract: An aerosol generating system includes: a cigarette including a first segment and a second segment; a heater generating an aerosol by heating at least a portion of an aerosol generating substrate arranged in the first segment and the second segment; a cigarette recognition sensor detecting an identification element arranged in the first segment or the second segment in the cigarette; and a controller identifying a type of the cigarette on the basis of a result detected by the cigarette recognition sensor and controlling a power supply to the heater to heat the cigarette according to a temperature profile corresponding to the identified type.
    Type: Grant
    Filed: September 16, 2020
    Date of Patent: January 14, 2025
    Assignee: KT&G CORPORATION
    Inventors: Seung Won Lee, Sung Wook Yoon, Dae Nam Han
  • Patent number: 12198227
    Abstract: To output a virtual smoke image, an electronic device may receive a connection request from an aerosol generating device in a state of being paired with one or more external controllers, determine a controller type of the aerosol generating device, suspend pairing with a target external controller among the one or more external controllers when the determined controller type corresponds to a type of the target external controller, perform connection with the aerosol generating device, receive sensing information about a state of the aerosol generating device, generate a virtual smoke image based on the sensing information, and output the virtual smoke image through a display of the electronic device.
    Type: Grant
    Filed: June 2, 2023
    Date of Patent: January 14, 2025
    Assignee: KT&G CORPORATION
    Inventors: Jae Hyun Kim, Minseok Jeong, Tae Young Chung
  • Patent number: 12193500
    Abstract: Disclosed is an aerosol generating system including a cigarette and an aerosol generating device. The cigarette includes a first substrate section and a second substrate section which include a non-tobacco material sheet containing an aerosol generating material, and the aerosol generating device includes a single heater disposed so that a heating area of the first substrate section is different from a heating area of the second substrate section.
    Type: Grant
    Filed: July 15, 2020
    Date of Patent: January 14, 2025
    Assignee: KT&G CORPORATION
    Inventors: Sung Jong Ki, Young Joong Kim, In Su Park, John Tae Lee, Sun Hwan Jung, Eun Mi Jeoung
  • Patent number: 12193515
    Abstract: An aerosol generating device includes: a heater configured to generate an aerosol by heating an aerosol generating material; a proximity sensor configured to measure a distance between a user of the aerosol generating device and the aerosol generating device; and a controller electrically connected to the heater and the proximity sensor and configured to control the heater on the basis of the distance measured by the proximity sensor.
    Type: Grant
    Filed: April 13, 2021
    Date of Patent: January 14, 2025
    Assignee: KT&G CORPORATION
    Inventor: Won Kyeong Lee
  • Patent number: 12193486
    Abstract: An aerosol generating device includes: a first cartridge configured to accommodate a first material and including a delivery hole that is configured to deliver an aerosol generated from the first material; a second cartridge including a plurality of chambers that are each configured to accommodate a second material through which the aerosol delivered from the first cartridge passes and is discharged to the outside, wherein a position of the second cartridge with respect to the first cartridge is changeable so that at least one of the plurality of chambers corresponds to the delivery hole; a position sensor configured to generate a signal by detecting a position of at least one of the plurality of chambers with respect to the delivery hole; and a controller configured to identify a usage chamber based on the signal of the position sensor.
    Type: Grant
    Filed: May 27, 2021
    Date of Patent: January 14, 2025
    Assignee: KT&G CORPORATION
    Inventors: Byung Sung Cho, Min Kyu Kim, Won Kyeong Lee, Jong Sub Lee
  • Publication number: 20250009038
    Abstract: An aerosol-generating device and an operation method thereof are disclosed. The aerosol-generating device of the disclosure includes a heater configured to heat an aerosol-generating substance, a puff sensor configured to detect a puff, and a controller configured to process a signal from the puff sensor. The controller determines a first frequency corresponding to a first puff time period and a second frequency corresponding to a second puff time period, which is longer than the first puff time period, filters the signal from the puff sensor based on the first frequency and the second frequency, and adjusts the power supplied to the heater based on the result of filtering. The first frequency is a frequency lower than the second frequency.
    Type: Application
    Filed: October 19, 2022
    Publication date: January 9, 2025
    Applicant: KT&G CORPORATION
    Inventors: Byungsung CHO, Jaemin LEE, Sangkyu PARK, Jongsub LEE
  • Publication number: 20250009016
    Abstract: An aerosol-generating device is disclosed. The aerosol-generating device of the disclosure includes a cartridge having an elongated insertion space, a body coupled to the cartridge, a heater configured to heat an aerosol-generating substance, a battery configured to supply power to the heater, a stick detection sensor configured to output a signal corresponding to a stick inserted into the elongated insertion space, and a controller. Upon determining that the stick has been inserted into the elongated insertion space using the stick detection sensor, the controller checks remaining power of the battery. When the remaining power is less than a reference amount of power corresponding to the stick, the controller performs control such that supply of power to the heater is interrupted. When the remaining power is greater than or equal to the reference amount of power, the controller performs control such that power is supplied to the heater.
    Type: Application
    Filed: October 19, 2022
    Publication date: January 9, 2025
    Applicant: KT&G CORPORATION
    Inventors: Byungsung CHO, Sangkyu PARK, Jongsub LEE
  • Patent number: 12185751
    Abstract: A cigarette filter comprises a first filter portion comprising an irregularly folded and packed polymer sheet, and a first cigarette filter wrapping paper surrounding the polymer sheet, wherein the polymer sheet comprises a first polymer layer containing polyolefin or polyester and a second polymer layer positioned on the first polymer layer and containing polyolefin.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: January 7, 2025
    Assignee: KT&G CORPORATION
    Inventors: Soo Ho Kim, Jin Chul Yang, Man Seok Seo, Jong Yeol Kim, Youn Keun Oh, Tae Hoon Kim, Moon Soo Yoon