Bridgestone Tire Company Limited

Bridgestone Corporation

Hirotsugu Masuda

Tsuneaki Narumiya

Tomoyuki Kurata

Eigo Tanuma

Munehiko Kato

Kazuo Tsuchiya

Yuji Sakaguchi

Kaneaki Takahashi

Hisanari Uruta

Described herein is a porous ceramic structure consisting of a ceramic roll core or an assembly of ceramic roll cores each comprising: consecutively aligned pairs of inclined cylindrical cell units of oblique figure '8' shape, each cylindrical cell unit having a width of 5-30 mm, a height of 10-100 mm and an angle of inclination of 20-70 degrees.

Porous ceramic structure

A flexible pipe coupling is disclosed. This coupling comprises a large diameter cylindrical hollow body, a pair of small diameter cylindrical hollow bodies each having one end portion disposed inside each end of the large diameter cylindrical hollow body on the same axial line, and an elastic sleeve member for connecting each end of the large diameter cylindrical hollow body to one end of each of the small diameter cylindrical hollow bodies. The elastic sleeve member is provided at its both ends adjacent to the cylindrical hollow bodies with protrusions each extending outwardly in the widthwise direction of the sleeve member at a radius of curvature corresponding to 0.1.about.0.4 times the thickness of the sleeve member, whereby the durability of the coupling is further improved.

Flexible pipe coupling

A pneumatic marine fender composed of a cylindrical barrel serving as a shock receiving face, which comprises a composite inner reinforcement composed of two kinds of cord layers which consist of an axially extending cord layer and a circumferentially extending cord layer whose cords are slightly inclined and symmetrically arranged with respect to the circumferential line of the cylindrical shell in reverse directions and helically wound around the cylindrical shell.

Pneumatic marine fender

Growing community of inventors

Yokohama, Japan

Hirotsugu Masuda