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. 03, 1994
Filed:
Apr. 25, 1991
Applicant:
Inventors:
Katsutoshi Misuda, Yokohama, JP;
Hitoshi Kijimuta, Ebina, JP;
Kouichi Numata, Yokohama, JP;
Masaharu Tanaka, Yokohama, JP;
Yoshinori Katayama, Yokohama, JP;
Iku Tomari, Yokohama, JP;
Toshiro Samejima, Tokyo, JP;
Assignees:
Asahi Glass Company Ltd., Tokyo, JP;
Japan Tobacco Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A24B / ;
U.S. Cl.
CPC ...
131290 ; 131359 ;
Abstract
The present invention relates to a method for producing a tobacco raw material having at least a part of its surface coated with a silical gel, which comprises adding silica sol to the tobacco raw material and subjecting the silical gel to gelation.