Mitsubishi Jidosha Kogyo Kabushiki Kaisha

Ishikawa Gasket Co., Ltd.

Masayuki Yano

Kisho Yasuda

Akira Yoshihara

Kunitoshi Kajiwara

Hiroki Imada

A gasket capable of surely preventing leakage of a fluid, without deteriorating a sealing performance even when a situation of fall of surface pressure at a periphery edge of a through hole occurs is provided. There are formed a primary seal structurelying on an inner side in the radial direction of a periphery edge endand a secondary seal structurelying on an outer side in the radial direction of the periphery edge endin which the primary seal structureincludes a primary upper layer beadformed to an upper layera primary intermediate layer beadformed to a second plate materialof an intermediate layerand a primary lower layer beadformed to a lower layerstacked in an x direction, and the secondary seal structureincludes a secondary upper layer beadformed to the upper layeran secondary intermediate layer beadformed to the second plate materialof the intermediate layerand a secondary lower layer beadformed to the lower layerstacked in the x direction.

Growing community of inventors

Tokyo, Japan

Masayuki Yano