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:
Sep. 04, 2012
Filed:
Jul. 29, 2004
Applicants:
Yoshiaki Kumamoto, Tochigi, JP;
Masataka Ishikawa, Tochigi, JP;
Hironobu Kawajiri, Tochigi, JP;
Hisao Nishiguchi, Tokyo, JP;
Inventors:
Yoshiaki Kumamoto, Tochigi, JP;
Masataka Ishikawa, Tochigi, JP;
Hironobu Kawajiri, Tochigi, JP;
Hisao Nishiguchi, Tokyo, JP;
Assignee:
Kao Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61F 7/08 (2006.01); D21J 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A warming device of sheet form having (1) a heat generating sheet prepared by papermaking and containing an oxidizable metal, a moisture retaining agent, and a fibrous material and (2) an air permeable holder holding the heat generating sheet. The warming device has a thickness of 0.1 to 10 mm and a flexural strength of 0.01 to 0.3 N/cm. The sheet preferably has a thickness of 0.1 to 2.0 mm. The fibrous material preferably has a CSF of 600 ml or less.