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:
Aug. 21, 2001
Filed:
Jan. 27, 1998
Applicant:
Inventors:
Masatoshi Ishii, Takefu, JP;
Hiroyuki Miyamoto, Takefu, JP;
Genji Noguki, Ibaraki-ken, JP;
Hajime Kitamura, Ibaraki-ken, JP;
Assignee:
Shin-Etsu Chemical Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/26 ; H01M 1/028 ;
U.S. Cl.
CPC ...
H01M 4/26 ; H01M 1/028 ;
Abstract
A method for making hydrogen storage alloy powder comprises quenching a melt of a hydrogen storage alloy, breaking the quenched alloy into fine pieces provided that said alloy is in non-powder form after the quenching, and subjecting the fine pieces to treatment with a solution containing a conjugated unsaturated compound which has five or more conjugated &pgr; bonds in the molecule and a molecular weight of 100 or above.