Filtration filter and filtration device
AssigneeMurata Manufacturing Co., Ltd.
InventorsShusuke Yokota, Masaru Banju, Toshikazu Kawaguchi, Takashi Kondo
Life of this patent
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Abstract
A filtration filter that includes a filter section having a plurality of through-holes passing through a first main surface and constructed such that objects to be filtered contained in a liquid are captured and a second main surface opposite the first main surface; and a frame section surrounding an outer periphery of the filter section, wherein a first film thickness at a center of the filter section is larger than a second film thickness of the filter section at a position closer to the frame section than the center of the filter section.
Claims19
A filtration filter comprising:
- a filter section having a plurality of through-holes passing through and directly connecting a first main surface and a second main surface opposite the first main surface of the filter section, the filter section being constructed such that objects to be filtered contained in a liquid are captured;
- and
- a frame section surrounding an outer periphery of the filter section,
- wherein the second main surface of the filter section has a flat shape, and
- wherein a thickness of the filter section decreases in an order from a central region of the filter section to an intermediate region of the filter section and then followed by a rim side region of the filter section, the rim side region being closest to the frame section relative to the central region and the intermediate region.
A filtration filter comprising:
- a filter section having a plurality of through-holes passing through and directly connecting a first main surface and a second main surface opposite the first main surface of the filter section, the filter section being constructed such that objects to be filtered contained in a liquid are captured;
- and
- a frame section surrounding an outer periphery of the filter section,
- wherein the filter section has a convex shape protruding out from a side of the first main surface,
- wherein a thickness of the filter section decreases in an order from a central region of the filter section to an intermediate region of the filter section and then followed by a rim side region of the filter section, the rim side region being closest to the frame section relative to the central region and the intermediate region, and
- wherein a first depth of a first through-hole of the plurality of through-holes in the central region of the filter section is larger than a second depth of a second through-hole of the plurality of through-holes in the rim side region of the filter section.
Dependencies are inferred from the claim text.