Nichias Corporation

Toshiro Nakano

Takashi Tanahashi

Akihiro Imai

Takashi Taniguchi

Satoshi Minobe

An air filter sheet comprising particles of a functional agent with an average particle diameter of 0.1 to 30 &#x3bc;m and fibrils of a polytetrafluoroethylene resin with a number average molecular weight of 3,000,000 to 50,000,000, the ratio by weight of the functional agent to the fibrils of the polytetrafluoroethylene resin being from 1 to 99. According to the present invention, an air filter sheet comprising fibrils of polytetrafluoroethylene resin with a functional agent carried thereon, possessing excellent formability, and being free from a lubricant, a process for manufacturing the air filter sheet, and an air filter free from contamination of outgas with a lubricant are provided.

Air filter sheet, process for manufacturing same, and air filter

An adsorption filter includes at least one thin plate honeycomb filtering medium carrying a gas-adsorbing medium thereon and a filter case housing the honeycomb filtering medium therein. The thin plate honeycomb filtering medium is disposed in the filter case in such a manner as to make a series of V configurations with respect to a ventilation direction.

Adsorption filter and manufacturing method thereof

The chemical filter supporting an ion-exchange resin comprising a fiber supporting body containing ion-exchange fiber and ion-exchange resin powder which is supported on the fiber supporting body is provided. The chemical filter possesses a large ion-exchange capacity per unit volume and exhibits high initial performance of eliminating ionized gaseous pollutants and excellent durability of the elimination performance.

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Yokohama, Japan

Toshiro Nakano