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:
Jul. 08, 1980
Filed:
Feb. 21, 1978
Masayuki Ohno, Hiratsuka, JP;
Kazuhiko Akutagawa, Hadano, JP;
Hiroo Inui, Tokyo, JP;
Yoshihiko Nishizawa, Noda, JP;
Naoshi Tsukada, Noda, JP;
Takeshi Akao, Abiko, JP;
Kikkoman Shoyu Co., Ltd., Noda, JP;
The Japan Tobacco & Salt Public Corporation, Tokyo, JP;
Abstract
Expanded porous tobacco stems with a low apparent density and an excellent quality of smoking taste are obtained by heating under a pressurized atmosphere tobacco stems separated from tobacco leaves, as such or after moisturization, at a temperature of 150.degree. to 300.degree. C. and a pressure of 3 kg/cm.sup.2 (gage) or more in the presence of superheated steam for a period of 30 seconds or less and suddenly releasing the pressure to effect expansion of the stems. The resulting expanded stems are shredded into cut tobacco stems or made into reconstituted tobacco sheet to provide a tobacco material of excellent filling capacity.