Nichias Corporation

Next21 K.k.

Shinya Wasada

Takeshi Murata

Hironobu Imanaka

Takahiro Niwa

Shigeki Suzuki

Shinro Takai

Futoshi Tanaka

Koutaro Shimizu

Hironobu Okamoto

A multi-layered metal sheet is disclosed formed of a laminate of a plurality of metal sheets fixed to each other by a clinch formed in a concave shape from one main surface toward another main surface, the clinch has an schematic pillar shape, the clinch being defined by an open top, a pair of cut surfaces which are respectively formed from the open top toward a bottom, a pair of inclined surfaces respectively inclined from the open top toward the bottom, transitional surfaces which connect the cut surfaces and the inclined surfaces to each other, and the bottom having overlapping parts which extend over the main surface of the multi-layered metal sheet on a lower side immediately below the cut surfaces, and lengthwise end portions of a cut formed in each of upper edge portions of the cut surfaces are disposed on upper edge portions of the transitional surfaces.

Multi-layered metal sheet

A cylinder head gasket includes two main members on two sides, and middle members sandwiched therebetween. The middle members are composed of a first middle member and a second middle member that is separated and distinct therefrom. The first middle member is a metal plate that has cylinder hole rim portions encircling cylinder holes to a particular width, with beads surrounding the cylinder holes being formed in the cylinder hole rim portions. The metal plate either forms separated items, one at each cylinder hole, or else forms an integrated item connected between the cylinder holes. The second middle member is a metal plate that is disposed on the outside of the first middle member and has oil holes and bolt holes. The thickness of the first middle member is greater than that of the second middle member.

Cylinder head gasket

It is an object of the present invention to provide a figure-forming composition which enables the initiation of hardening even with a small amount of water and can attain a prescribed hardness, and which is suitable particularly for the production of three-dimensional living body models for surgical training by a rapid prototype process; and provide a three dimensional figure and a three-dimensional structure which are formed by using the composition. The figure-forming composition, for example, comprises a calcium-based material such as hemihydrate gypsum and polyvinyl alcohol resin, wherein the content of the polyvinyl alcohol resin is 2 to 20 weight parts when the total weight of the calcium-based material and the polyvinyl alcohol resin is 100 weight parts.

Figure-forming composition, method for forming three-dimensional figures and three-dimensional structures by using the same

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Tokyo, Japan

Shinya Wasada