Metal working – Method of mechanical manufacture – Electrical device making
Patent
1994-08-30
1996-05-21
Kalafut, Stephen
Metal working
Method of mechanical manufacture
Electrical device making
148512, 420900, 427123, H01M 404, H01M 438
Patent
active
055185096
ABSTRACT:
A method for producing a hydrogen-absorbing alloy electrode including a step of treating the surface of a hydrogen-absorbing alloy. The surface treatment is applied to hydrogen-absorbing alloy having ununiform distortion of 3.5.times.10.sup.-3 or less by using only an acid solution whose pH value is between 0.5 and 3.5.
REFERENCES:
patent: 5173109 (1992-12-01), Iantosca
Patent Abstracts of Japan, vol. 17, No. 144, Mar. 23, 1993 (4-318106).
Patent Abstracts of Japan, vol. 17, No. 152, Mar. 25, 1993 (4-319258).
Patent Abstracts of Japan, vol. 17, No. 173, Apr. 4, 1993 (4-328252).
Patent Abstracts of Japan, vol. 13, No. 381, Aug. 23, 1989 (1-132048).
Fukuda Hiroshi
Mizutaki Fusago
Tadokoro Motoo
Kalafut Stephen
Sanyo Electric Co,. Ltd.
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