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. 27, 2003
Filed:
Nov. 09, 2000
Applicant:
Inventors:
Kazuyo Kaneki, Yokohama, JP;
Takaichi Yoshida, Yokohama, JP;
Keigo Miura, Yokohama, JP;
Osamu Komatsubara, Yokohama, JP;
Hideaki Katsumata, Fuji, JP;
Hiroshi Hara, Yokohama, JP;
Assignee:
Japan Tobacco Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A24D 1/04 ; D21H 2/700 ;
U.S. Cl.
CPC ...
A24D 1/04 ; D21H 2/700 ;
Abstract
The cigarette filter wrapper paper has a paper layer which has a first surface and a second surface. The filter wrapper paper exhibits a first overlap air permeability, measured when a perforated tip paper is overlapped on the first surface, and a second overlap air permeability, measured when a perforated tip paper is overlapped on the second surface. The first overlap air permeability is higher than the second overlap air permeability.