Abstract: A first antenna, a second antenna, and a waveguide structure are housed in a single cabinet. An operating frequency of the second antenna is higher than an operating frequency of the first antenna. The second antenna is an array antenna including a plurality of radiating elements. The waveguide structure is present outside a range of a half-value angle of a main beam as viewed from the first antenna, includes a unit waveguide disposed in a route of a radio wave received by the second antenna, and further attenuates a radio wave with the operating frequency of the first antenna.

Abstract: A vinyl chloride resin composition having excellent weatherability and impact resistance which comprises (a) a vinyl chloride resin, (b) a graft copolymer which is obtained by graft-polymerizing (b2) a graft monomer component composed of 40 to 100% by weight of methyl methacrylate and 0 to 60% by weight of at least one monomer selected from the group consisting of an alkyl acrylate, an alkyl methacrylate, an unsaturated nitrile and an aromatic vinyl compound onto (b1) a crosslinked elastomeric polymer composed mainly of an alkyl acrylate, the methyl ethyl ketone-soluble portion of the graft copolymer having an ?sp/c of 1 to 5 measured at 30° C. with respect to its 0.2 g/100 cc acetone solution, and (c) calcium carbonate; and molded articles having a multilayer structure wherein a layer molded from the above composition is used as the surface layer or the inner layer.

Abstract: A patterned thin film suitable for use in electric and electronic devices, prepared from a polymer or a mixture of the polymer and other known compounds capable of forming a thin film by LB technique, said polymer having linear recurring units wherein an organic group R.sup.1 having at least 2 carbon atoms and a valence of at least 2 is combined alternately with an organic group R.sup.2 having at least 2 carbon atoms and a valence of at least 2 through a bivalent group formed by a reaction of an acid group A containing a hetero atom and a basic group B containing a hetero atom, and wherein a hydrocarbon-containing group R.sup.3 having 10 to 30 carbon atoms which may contain a substituent group, is linked by covalent or ionic bond to said recurring units, the number of groups R.sup.3 being at least 2 per 10 recurring units.

Abstract: A multi-layer resist comprising (A) a layer of a Langmuir-Blodgett film, (B) a layer of at least one thin film and (C) a substrate, said layer (B) being placed between said layer, (A) and said substrate (C). The multi-layer resists of the invention are applicable to ultra fine processing on the order of submicron, half-micron or quarter-micron, and the number of defects can be remarkably decreased.

Abstract: A patterned thin film suitable for use in electric and electronic devices, prepared from a polymer or a mixture of the polymer and other known compounds capable of forming a thin film by LB technique, said polymer having linear recurring units wherein an organic group R.sup.1 having at least 2 carbon atoms and a valence of at least 2 is combined alternately with an organic group R.sup.2 having at least 2 carbon atoms and a valence of at least 2 through a bivalent group formed by a reaction of an acid group A containing a hetero atom and a basic group B containing a hetero atom, and wherein a hydrocarbon-containing group R.sup.3 having 10 to 30 carbon atoms which may contain a substituent group, is linked by covalent or ionic bond to said recurring units, the number of groups R.sup.3 being at least 2 per 10 recurring units.