Toshiba Ceramics Co., Ltd.

Kuniko Ando

Shunzo Shimai

Koichi Shiraishi

Kenichi Okamoto

Masaru Shimbo

Koichi Imura

A ceramic porous body is constituted of ceramic particles which have a substantially continuous, monotonic size distribution in the thickness direction of the porous body.

Ceramic porous body having a continuous particle size distribution

A silica glass filter comprises a porous support body composed of amorphous silica particles as a porous sintered body and having a purity of 99.9% or more and containing 150 ppm or less in total of impurities including alkali, alkali metal, heavy metal and/or elements of III B group, and a filtration layer formed on the support body. The filtration layer is composed of amorphous silica particles as a porous sintered body in a fine mode and has substantially the same purity as that of the support body.

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Hadano, Japan

Kuniko Ando