Sumitomo Chemical Company, Limited

Honda Giken Kogyo Kabushiki Kaisha

Kawasaki Steel Corporation

K-plasheet Corporation

K-plasheet Coporation

Mituaki Sunada

Yutaka Shiomi

Satoru Funakoshi

Katsuhiro Nagayama

Syohei Masui

Yasuhiro Miura

Hiroyuki Yoshitake

Masami Fujimaki

Akira Kaburagi

Taiji Matsumoto

Yoshio Sakaguchi

Toshiyuki Kurihara

Hideho Kubo

Sound absorbing component

A composite core is selected which is formed of a reinforcing fiber and a thermoplastic synthetic resin by a compression molding, and including a first region in which the grammage M.sub.1 is set in a range of 400 g/m.sub.2 .ltoreq.M.sub.1 .ltoreq.700 g/m.sup.2 to provide a reduction in weight, and a second region in which the grammage M.sub.2 is adjusted in a range of 900 g/m.sup.2 .ltoreq.M.sub.1 .ltoreq.1,200 g/m.sup.2 to provide an enhanced rigidity. At a first step, the composite core is heated, whereby it is expanded, and the thermoplastic synthetic resin is expanded. At a second step, a skin material is superposed onto the composite core. At a third step, the composite core is compressed, and the skin material is bonded to the composite core. In the laminate produced in the above manner, the first region contributes to a reduction in weight, and the second region contributes to an increase in rigidity. Further, because of a larger amount of second region expanded, the reinforcing fibers are stuck into the skin material. This contributes to an increase in bond strength. Thus, it is possible to produce a laminate which has a high bond strength of a surface skin material layer and a rigidity and moreover, is light in weight.

Laminate producing process

A pipe clogging detecting device which incessantly monitors states of a pipe through which fluid is flowing, and when clogging occurs, immediately alarms the occurrence of clogging to operators. The device includes a plurality of containers, a pipe interconnecting the containers, a vibration sensor provided on the pipe, and a detecting device for detecting the occurrence of clogging in the pipe, based on output signals from the vibration sensor.

Pipe clogging detecting device

Growing community of inventors

Chiba, Japan

Mituaki Sunada