The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 10, 2011
Filed:
May. 04, 2004
Applicants:
Takaaki Matsufuji, Yokohama, JP;
Takeo Tsutsumi, Yokohama, JP;
Inventors:
Takaaki Matsufuji, Yokohama, JP;
Takeo Tsutsumi, Yokohama, JP;
Assignee:
Japan Tobacco Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A24D 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A low ignition propensity cigarette according to the invention includes a high-density region formed in the center of the paper tube and containing normal shred tobacco filled to be a filling density of 0.15 to 0.35 g/cm, for example 0.25 g/cm, and a low density region formed between the paper tube and the high-density region and containing expanded shred tobacco filled to a filling density of 0.05 to 0.15 g/cm, for example 0.14 g/cm. The thickness of the low-density region defined between the paper tube and the high-density region is in the range of 1 to 3 mm.