Abstract: An object of the present invention is to provide a polarizer having a high degree of alignment and an image display device including the polarizer. A polarizer of the present invention is a polarizer formed of a polarizer-forming composition containing a liquid crystal compound, a first dichroic material, and a second dichroic material, in which the polarizer has an array structure formed of the first dichroic material and the second dichroic material.

Abstract: A multilayer directional coupler which is easy to mass-produce and reduce in size, in which fine setting of the degree of electromagnetic coupling is facilitated, and which has a large bandwidth ratio, includes magnetic substrates, a laminate including first and second transformers, and external electrodes. One external electrode, which is connected to two ends of a primary coil of the first transformer, defines an input end for a main signal, and another external electrode defines an output end. A further external electrode, which is connected to two ends of a secondary coil of the second transformer, defines an output end for a sub-signal. A winding length ratio N1 of the secondary coil to primary coil of the first transformer and a winding length ratio N2 of the primary coil to secondary coil of the second transformer are each set to a value that is greater than about 1 and not greater than about 10. A ratio of the winding length ratio N2 to the winding length ratio N1 is greater than about 0.

Abstract: A laminated balun transformer that achieves improved balance characteristics and prevents the occurrence of parasitic inductance has an impedance transformation ratio of one to four and outputs balanced signals generated from an unbalanced signal. The laminated balun transformer includes a magnetic substrate, a laminated body, and external electrodes. The laminated body includes a first transformer, a second transformer, and a non-magnetic body which completely covers the first and second transformers from the outside. The first and second transformers are arranged side by side in a direction substantially parallel to the magnetic substrate. A primary coil of the first transformer and a secondary coil of the second transformer are configured to be 180-degree rotationally symmetric with respect to a center line, while a secondary coil and a primary coil are also configured to be 180-degree rotationally symmetric with respect to the center line L.

Abstract: A laminated balun transformer that achieves improved balance characteristics and prevents the occurrence of parasitic inductance has an impedance transformation ratio of one to four and outputs balanced signals generated from an unbalanced signal. The laminated balun transformer includes a magnetic substrate, a laminated body, and external electrodes. The laminated body includes a first transformer, a second transformer, and a non-magnetic body which completely covers the first and second transformers from the outside. The first and second transformers are arranged side by side in a direction substantially parallel to the magnetic substrate. A primary coil of the first transformer and a secondary coil of the second transformer are configured to be 180-degree rotationally symmetric with respect to a center line, while a secondary coil and a primary coil are also configured to be 180-degree rotationally symmetric with respect to the center line L.

Abstract: A multilayer directional coupler which is easy to mass-produce and reduce in size, in which fine setting of the degree of electromagnetic coupling is facilitated, and which has a large bandwidth ratio, includes magnetic substrates, a laminate including first and second transformers, and external electrodes. One external electrode, which is connected to two ends of a primary coil of the first transformer, defines an input end for a main signal, and another external electrode defines an output end. A further external electrode, which is connected to two ends of a secondary coil of the second transformer, defines an output end for a sub-signal. A winding length ratio N1 of the secondary coil to primary coil of the first transformer and a winding length ratio N2 of the primary coil to secondary coil of the second transformer are each set to a value that is greater than about 1 and not greater than about 10. A ratio of the winding length ratio N2 to the winding length ratio N1 is greater than about 0.

Abstract: A balun transformer (10) may be constructed as a chip type transformer including a laminate (12) having first through fifth dielectric substrates (14a), (14b), (14c), (14d), and (14e) to be superimposed one on the other. An earth electrode (16) is formed on one main surface of the first dielectric substrate (14a), and an earth electrode (30) is formed on one main surface of the fifth dielectric substrate (14e). A connecting electrode (20) is formed on one main surface of the second dielectric substrate (14b). A first strip line (22) is formed on one main surface of the third dielectric substrate (14c). The first strip line (22) consists of a first spiral portion (24a) and a second spiral portion (24b). A second spiral strip line (26) and a third spiral strip line (28) are formed on one main surface of the fourth dielectric substrate (14d).

Abstract: Disclosed herein is a chip type directional coupler comprising a laminated structure of a plurality of dielectric substrates, each dielectric substrate having a pair of stripline electrodes nonlinearly formed on its one major surface in parallel with each other, and a plurality of ground electrode substrates, each ground electrode substrate being provided with a ground electrode on its one major surface, the dielectric and ground electrode substrates being so alternately stacked that uppermost and lowermost layers are defined by the ground electrodes, and a plurality of external electrodes which are formed on side surfaces of the laminated structure. The pairs of stripline electrodes formed on the respective dielectric substrates are connected in series with each other through the intervening dielectric substrates, to define stripline electrodes of quarter wavelengths in overall length.

Abstract: Disclosed herein is a chip type directional coupler comprising a laminated structure having two stripline electrode substrates, each provided with a quarter-wavelength stripline electrode portion meandered on one major surface thereof, which are so stacked as to electromagnetically couple the stripline electrodes with each other and two ground electrode substrates, provided with ground electrodes, which are stacked to hold the two stripline electrode substrates, and a plurality of external electrodes formed on side surfaces of the laminated structure. Respective end portions of the stripline electrodes and the ground electrodes are electrically connected to different ones of the external electrodes respectively.

Abstract: A method of producing medium-grade coated paper for rotogravure printing, which paper, when printed, has fewer missing gravure dots and reproduction of gravure dots is improved.The method comprises applying the following coating composition (A) or (B) to either surface or both surfaces of base paper, the fiber content of which comprises 10 to 100 parts, by weight, high-yield pulp(s) having a 42-mesh fiber fraction content of below 30%, and 0 to 90 parts, by weight, chemical pulp(s): The coating composition (A) comprises pigments containing natural ground calcium carbonate with a specific surface area of 1.5 to 2.5 m.sup.2 /g in a proportion of 5 to (95S-137.5)% by weight ("S" represents a specific surface area (m.sup.2 /g) of natural ground calcium carbonate.), and adhesive of either alkali-sensitive synthetic resin emulsion or a mixture of alkali-nonsensitive synthetic resin emulsion and viscosity increasing agent(s).