Abstract: A composite container is provided where FRP layers are formed by winding FRP around a metal liner so that the dome sections are reinforced while limiting an increase in the weight. The FRP layers include a hoop layer that covers the entirety of the cylindrical section in hoop winding, and dome section reinforcing layers that also cover as least the portions of the cylindrical section near the dome sections. In the dome section reinforcing layers, FRP are wound in helical form in such a manner that the orientation angle of the FRP over the cylindrical section relative to the direction of the axis of the liner continuously changes towards the center of the cylindrical section, and thus, the weight of FRP near the center of the cylindrical section is reduced.

Abstract: A composite container is provided where FRP layers are formed by winding FRP around a metal liner so that the dome sections are reinforced while limiting an increase in the weight. The FRP layers include a hoop layer that covers the entirety of the cylindrical section in hoop winding, and dome section reinforcing layers and that also cover as least the portions of the cylindrical section near the dome sections and. In the dome section reinforcing layers and, FRP are wound in helical form in such a manner that the orientation angle of the FRP over the cylindrical section relative to the direction of the axis of the liner continuously changes towards the center of the cylindrical section, and thus, the weight of FRP near the center of the cylindrical section is reduced.

Abstract: [Object] A safe hydrogen storage tank in a highly reliable form where it is difficult for fatigue failure to occur is provided as a hydrogen storage tank where a cartridge is filled with a hydrogen occluding substance and contained within an integrally molded liner made of a metal.

Abstract: [Object] A safe hydrogen storage tank in a highly reliable form where it is difficult for fatigue failure to occur is provided as a hydrogen storage tank where a cartridge is filled with a hydrogen occluding substance and contained within an integrally molded liner made of a metal.

Abstract: A magneto-resistive element includes: a metal artificial lattice film (4) in which a magnetic thin film and a non-magnetic metal thin film are alternately laminated in at least two layers on a part of a substrate (1) and formed into a predetermined pattern; a first protective layer (5) covering the metal artificial lattice film (4); and a second protective layer (6) formed on the first protective layer (5). The residual stress of the first protective layer (5) is substantially zero. The second protective layer (6) is made of a material rejecting water. This structure can achieve a magneto-resistive element that has no hysteresis and small deterioration of the characteristics even at high temperatures, and has excellent heat resistance and corrosion resistance. Thus, this element can be used in sever environments, such as in an automobile.