Nifco Inc.

Mazda Motor Corporation

Nishikawa Rubber Co., Ltd.

Noboru Obayashi

Norimasa Nagasawa

Fusatoshi Tanaka

Tomohide Okuta

Megumu Fukushima

Katsunori Kuremiya

Nobuhiro Takamatsu

Hiroyuki Hamanaka

Akinori Gondai

A hole plug includes a head portion and a foot portion projecting from a back surface of the head portion to be inserted into a hole to be blocked. The foot portion has a cylindrical shape formed of several uprising plates extending from the back surface of the head portion. An engaging step portion is formed at a base end of each uprising plate for holding a rim of the hole to be blocked together with the head portion. A supporting device is formed at an inside of each uprising plate for limiting bending of each uprising plate inwardly in the radial direction.

Hole plug

An oil separating mechanism to be attached to a cylinder block having a concave portion includes a cover member for forming a closed space; a partition wall for dividing the closed space into an inner chamber and an outer chamber; a dividing wall for dividing the inner chamber into a first inner chamber and a second inner chamber; a gas inlet for introducing gas into the first inner chamber; a gas outlet for discharging the gas; a first gas port for communicating the first inner chamber with the outer chamber; and a second gas port for communicating the outer chamber with the second inner chamber. The gas introduced into the first inner chamber flows from the first inner chamber to the outer chamber. Then, the gas flowing from the outer chamber to the second inner chamber is discharged through the gas outlet.

Oil separating mechanism and oil separating unit

Retainer for rubbery articles or the like

Growing community of inventors

Hiroshima, Japan

Noboru Obayashi