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:
Apr. 10, 2007
Filed:
Aug. 20, 2005
Masao Watanabe, Shiraoi, JP;
Ximeng Jiang, Chitose, JP;
Ryuichi Saito, Chitose, JP;
Dynax Corporation, Chitose-shi, JP;
Muroran Institute of Technology, Muroran-shi, JP;
Abstract
The object is to provide a method for drying and storing activated aluminum fine particles which can be a hydrogen source for fuel cells for a long term without being deactivated. A thermal shock treatment as an activation of the aluminum fine particles, which repeats rapid heating and cooling, is performed to aluminum fine particles obtained by milling aluminum alloy; moisture contained in the activated aluminum fine particles is filtrated; said aluminum fine particles are pre-frozen; and the aluminum fine particles are freeze-dried and then stored in nitrogen atmosphere or vacuum-packed.