BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a perspective view schematically showing one embodiment of a filter of the present invention.
FIG. 2 is a perspective view schematically showing another embodiment of a filter of the present invention.
FIG. 3(
a)-FIG. 3(f) are perspective views schematically showing the filters of the Examples, and FIG. 3(g) and FIG. 3(h) are perspective views schematically showing the filters of the Comparative Examples.
FIG. 4(
a) and FIG. 4(b) are perspective views schematically showing filters of the Examples.
FIG. 5 is a perspective view schematically showing a conventional monolithic filter.