Kitz Corporation

Eiji Suda

Masaharu Watanabe

A filter element includes a bundle of hollow fiber type separation membranes made of a natural or synthetic macromolecular material and a sealed part made of a thermoplastic resin. The bundle has an opening in at least one terminal part thereof. The sealed part is bonded to the bundle at a temperature not higher than the melting or decomposing temperature of the macromolecular material and adapted to seal watertightly the opening of the bundle in a half-bonded state showing no compatibility with the macromolecular material and permitting persistence of the mutual interface of bondage.

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Kitakoma-gun, Japan

Eiji Suda