Bridgestone Corporation

Tomio Oyachi

Masato Yoshikawa

Minoru Takahashi

Minoru Ishiharada

Setsuo Akiyama

Hiroya Fukuda

Yasuhiro Iino

Tsuneaki Narumiya

Tatsuya Kanayama

Koichi Izuhara

Masahiko Anami

Yasuhiro Ino

Hideo Tajima

A porous ceramic structure suitable for use as a filter for molten metal, in which a porous ceramic body having pores capable of passing a fluid therethrough is covered with a metal layer over the wall surface of the pores such that a fluid may flow through the pores while in contact with the metal layer. The filtering efficiency can be improved due to the increased wettability between the ceramic filter and the molten metal.

Porous ceramic structure and method of filtering aluminum

A wave absorber comprising semiconductive ceramic short fibers having defined diameter, aspect ratio and volume resistivity dispersed in polymer materials. The dispersion is usually formed on a sheet or film base as a layer. A method for making the wave absorber is also described.

Wave absorber and method for making same

Method for treating golf ball surface which is made of balta resin, thermoplastic elastomer, ionomer resin or the like to unpolymerizable gas plasma and then applying usual coating in an apparatus adapted to expose the all over surface of the ball to said plasma. Owing to this treatment, exfoliation of the ball coating can unexpectedly sufficiently be prevented.

Method for treating golf ball surface with glow discharge plasma and

A radio wave shielding material and a method of producing the same are disclosed. The radio wave shielding material comprises a plastic foamed body of three-dimensional network skeleton structure, a metal plating coat formed on the skeleton surface, and a coating of conductive rubber and/or plastic formed on the metal plating coat.

Radio wave shielding materials and a method of producing the same

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Tokorozawa, Japan

Tomio Oyachi