CPC B01D 61/18 (2013.01) [B01D 63/08 (2013.01)] | 9 Claims |
1. A filtration filter comprising:
a filter substrate defining a plurality of through-holes extending from a first principal surface to a second principal surface opposite the first principal surface; and
a plurality of projections that each form a loop that extends along a periphery of a respective through-hole of the plurality of through-holes that is adjoined by the projection, the plurality of projections protruding from the first principal surface so as to define a reservoir part with the first principal surface.
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