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:
Mar. 31, 2009
Filed:
Jun. 10, 2004
Masakazu Aoki, Aichi-gun, JP;
Nobuko Oba, Aichi-gun, JP;
Shin-ichi Towata, Nagoya, JP;
Tatsuo Noritake, Nagoya, JP;
Masakazu Aoki, Aichi-gun, JP;
Nobuko Oba, Aichi-gun, JP;
Shin-ichi Towata, Nagoya, JP;
Tatsuo Noritake, Nagoya, JP;
Kabushiki Kaisha Toyota Chuo Kenkyusho, Aichi-gun, JP;
Abstract
A hydrogen storage material is expressed by a composition formula, (CaA)(SiB), wherein 'A' is at least one member selected from the group consisting of alkali metal elements, alkaline-earth metal elements, rare-earth elements, the elements of groups 3 through 6, Ni, Au, In, Tl, Sn, Fe, Co, Cu and Ag; 'B' is at least one member selected from the group consisting of the elements of groups 7 through 17, rare-earth elements, Hf and Be; 0≦x<1 by atomic ratio; 0≦y<1 by atomic ratio; and 0.38≦z≦0.58 by atomic ratio. It is lightweight as well as less expensive. In principle, neither high-temperature nor high-pressure activation is required, because it exhibits a high initial activity. The operation temperature can be lowered and the hydrogen absorption content can be enlarged by controlling the kind and substitution proportion of the substituent elements appropriately.