Abstract: A plane thin-type polymer actuator is provided with a conductive active member serving as a first electrode layer, and a second electrode layer, with at least a first electrolytic layer made in contact with the active member layer being sealed between the two electrode layers, so that by applying an electric field between the two electrode layers, the active member layer is expanded and contracted, and in this structure, the first electrolytic layer is a solid-state electrolyte having a specific elastic modulus, or a liquid-state electrolyte, and a holding member that maintains the thickness between the active member layer and the second electrode layer is installed.

Abstract: A nanoparticles-containing composite porous body according to the present invention includes a porous body having a solid skeleton and pores and nanoparticles of an inorganic substance. The nanoparticles are carried on the solid skeleton without coagulating together or being chemically bonded to the skeleton. The nanoparticles may be coated with organic aggregates and carried as composite particles on the solid skeleton. As the organic aggregates, spherical organic aggregates such as a spherical protein or a dendrimer are preferably used. Also, the organic aggregates may be decomposed and removed if necessary.

Abstract: It is a principal object of the present invention to provide a dielectric having a high relative dielectric constant and dielectric loss minimized in high frequency bands. That is, the present invention relates to a composite dielectric comprising conductive particles dispersed in a porous body of inorganic oxide, wherein 1) the relative dielectric constant ?r of the dielectric in high frequency bands of 1 GHz or more is 4 or more, and 2) the dielectric loss tans of the dielectric in high frequency bands of 1 GHz or more is 2×10?4 or less, and to a manufacturing method therefor.

Abstract: A molding composition comprising a phenol resin, a curing agent for the resin, strands of fiberglass, and graphite. Such a composition is suitable for producing molded slide members having good abrasion resistant properties when used under water-lubricated conditions.

Abstract: Disclosed is a molding compound comprising a phenol resin, a curing agent for the resin, a chopped strands of glass fiber, and a graphite. The material is molded into slide members which exhibit good abrasion resistance when used under water-lubricated conditions.

Abstract: A phenol resin molding compound which comprises phenol resin, a curing agent for the phenol resin, hydrogenated NBR, chopped strands of glass fibers and powdery glass fibers having a length of about 10 to about 200 .mu.m has a considerably improved elongation and an elevated safely factor from cracking without any substantial lowering of the modulus of tensile elasticity.

Abstract: An illumination optical apparatus includes secondary light source forming means for forming a plurality of light source images from collimated light beams emitted from a light source, tertiary light source forming means arranged midway along an optical path from the secondary light source forming means, and a condenser lens arranged midway along an optical path from the tertiary light source forming means. The secondary light source forming means includes an optical integrator having entrance and exit surface. A plurality lens surface having a larger focal length than a distance between the entrance and exit surfaces are formed on the entrance sarfaces. Thus, a plurality of secondary light source images are formed by the secondary light source forming means in a space behind the exit surface of the optical integrator.