Other

Japan Tobacco Inc.

Ichiro Atobe

Paul Richard Clarke

John Charlton

Fumihiro Omori

Masanori Koborinai

Atsushi Tokida

A cigarette filter has filter sections including filter materials individually wrapped with plug wrap paper, forming paper for wrapping the filter sections integrally, and tipping paper covering the forming paper so as to connect the filter sections to a cigarette section to form a cigarette, wherein activated charcoal and an inorganic mineral-based porous material carrying ferrous sulfate/L-ascorbic acid are contained as adsorbents in at least one of the filter materials and a space between the filter materials.

Cigarette filter

A filter for a cigarette and a filter-tipped cigarette having a high degree of freedom in control of filtering-efficiency of smoke are provided. The filter has a core and a sheath made preferably of tow of cellulose acetate fibers. A plurality of axial passages is formed between the core and the sheath and extend continuously between both end faces of the filter.

Filter for a cigarette and a filter-tipped cigarette

A filter for a cigarette and a filter cigarette which make a smoking feeling much milder without the original cigarette taste and aroma being spoiled are provided. The cigarette filter has a filter rod having an air permeable peripheral surface, and to axial passages in the rod . These passages are distributed on a ring having a diameter of 50 to 70% of that of the rod and have a diameter of 0.1 to 0.7 mm. The wall of the axial passages have air permeability. In smoking, ventilation air introduced into the passages dilutes the smoke stream from the cigarette.

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Tokyo, Japan

Ichiro Atobe