Hitachi Maxell, Limited

Kushibe Manufacturing Co., Ltd.

Masao Morishima

Hiroshi Fukunaga

Mitsuhiro Kishimi

Toshihiko Yamashita

A metallic porous body includes a number of protrusions formed on obverse and reverse sides of a metal sheet so as to protrude alternately with one another; each of the protrusions being formed into an truncated-shape wherein an opening portion punched out in the direction from the upper-side bottom to the lower-side bottom is formed in the upper-side bottom of each protrusion, and a vertical distance (d) between the upper-side bottom on the obverse side and the upper-side bottom on the reverse side, and a height (e) of a punched portion have a relation: 0.3&#x3c;e/d&#x3c;0.9, thereby attaining a metallic porous body without a burr or a edged convex portion on its outside surface, with a large number of fine pores arranged at fine pitch and a light-weight and robust skeleton.

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Osaka, Japan

Masao Morishima