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. 01, 2025
Filed:
Feb. 15, 2021
Applicant:
Kao Corporation, Tokyo, JP;
Inventor:
Yasuhiro Shidahara, Sumida-ku, JP;
Assignee:
Kao Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
A61F 9/00 (2006.01); A61F 7/03 (2006.01); A61F 9/04 (2006.01); A61F 7/00 (2006.01); A61F 7/02 (2006.01);
U.S. Cl.
CPC ...
A61F 7/034 (2013.01); A61F 9/04 (2013.01); A61F 2007/0004 (2013.01); A61F 2007/0088 (2013.01); A61F 2007/0244 (2013.01);
Abstract
A warming device including a heat generating element that contains a powder of an oxidizable metal, a powder of a carbon material, water, and a powder of a porous material other than the oxidizable metal and the carbon material. The heat generating element is a sheet material, and in the heat generating element, a ratio of the mass content of the water to the mass content of the powder of the oxidizable metal multiplied by one hundred [100×(water/powder of oxidizable metal)] is from 30 to 270.