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. 07, 2004
Filed:
Dec. 12, 2001
Yasuhiro Aoki, Hokkaido, JP;
Takaaki Miyaki, Hokkaido, JP;
Japan Steel Works Ltd., Tokyo, JP;
Abstract
The present invention is to obtain a Ti—Zn—Mn—V—Fe based hydrogen storage alloy having the excellent hydrogen absorbing and discharging performance at a low cost. An alloy represented by the general formula: Ti Zr Mn V Fe (wherein 0≦x≦0.5, 0<y≦0.6, 0<z≦0.2, and 1.8≦w≦2.2) is produced using a ferrovanadium (alloy of a V and an Fe) as one of the raw materials. The oxygen content of the alloy is limited to 5,000 ppm or less. A hydrogen storage alloy having the excellent hydrogen absorbing and discharging performance can be produced using an inexpensive ferrovanadium. Furthermore, an impurity oxygen, which adversely effect the performance, can be limited easily.