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Title:
FILTER, SMOKING ARTICLE, AND FLAVOR INHALATION ARTICLE
Document Type and Number:
WIPO Patent Application WO/2021/176524
Kind Code:
A1
Abstract:
This filter comprises: a first filter body that has a first end face disposed on the side of a mouthpiece and a second end face disposed on the side opposite to the mouthpiece side; and a second filter body that is disposed at the second-end-face side of the first filter body and has a third end face that faces the second end face. The first and second filter bodies are respectively formed of either a sheet of paper or a sheet of nonwoven cloth. The void quantity as seen in the first end face of the first filter body is less than that as seen in the third end face of the second filter body.

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WO/2021/176527FILTER, SMOKING ARTICLE, AND FLAVOR INHALATION ARTICLE
Inventors:
MOTODAMARI TETSUYA (JP)
Application Number:
PCT/JP2020/008711
Publication Date:
September 10, 2021
Filing Date:
March 02, 2020
Export Citation:
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Assignee:
JAPAN TOBACCO INC (JP)
International Classes:
A24D3/04
Domestic Patent References:
WO2011118042A12011-09-29
WO2018235761A12018-12-27
Foreign References:
JPS59196082A1984-11-07
JPH01243979A1989-09-28
JP2016002064A2016-01-12
JPS443727B1
JPS352052B1
JPS55148080A1980-11-18
JP2014515933W
JPH07166A1995-01-06
JPH078254A1995-01-13
JP2014515933A2014-07-07
Attorney, Agent or Firm:
KURATA, Masatoshi et al. (JP)
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