Abstract: A noise canceller of this invention includes a pickup antenna arranged in proximity to a noise signal generation source to extract a noise signal generated by the noise signal generation source, and a noise cancellation unit having a first input for receiving a television signal from a television signal receiving antenna and a second input for receiving the noise signal extracted by the pickup antenna. Herein, the noise cancellation unit removes a noise signal fed from the television signal receiving antenna. Thus, the noise canceller prevents degradation in television signal reception sensitivity due to the noise signal generated by the noise signal generation source.

Abstract: A 4-cycle engine for a motorcycle has a secondary-air supplier for supplying secondary air to exhaust ducts. The engine includes a recess, which is depressed toward the engine, on a cylinder-head cover for holding a control valve of the secondary-air supplier. The recess and the control valve are positioned between two innermost cylinders of the array of the cylinders. Check valves, which are connected to downstream regions of the control valve, are each disposed between two outermost cylinders of the array of the cylinders.

Abstract: A multibeam primary radiator apparatus (2) includes first, second and third primary horns (16, 18, 20). The first primary horn (16) has a generally circular proximal end aperture (22) at its proximal end, and a generally circular distal end aperture (24) at its distal end, which is larger than the proximal end aperture (22). The second and third primary horns (18, 20) have generally circular proximal end apertures (26, 28) at their proximal ends, and larger distal end apertures (30, 32) at their distal ends. The first through third primary horns are disposed with the center axes of the respective proximal end apertures being substantially in parallel with each other. The distance between the center axis of the first primary horn (16) and each of the second and third primary horns (18, 20) is smaller than the diameter of the proximal end aperture (22) of the first primary horn (16).

Abstract: A multibeam primary radiator apparatus (2) includes first, second and third primary horns (16, 18, 20). The first primary horn (16) has a generally circular proximal end aperture (22) at its proximal end, and a generally circular distal end aperture (24) at its distal end, which is larger than the proximal end aperture (22). The second and third primary horns (18, 20) have generally circular proximal end apertures (26, 28) at their proximal ends, and larger distal end apertures (30, 32) at their distal ends. The first through third primary horns are disposed with the center axes of the respective proximal end apertures being substantially in parallel with each other. The distance between the center axis of the first primary horn (16) and each of the second and third primary horns (18, 20) is smaller than the diameter of the proximal end aperture (22) of the first primary horn (16).

Abstract: The present invention provides new applications for surface acoustic waves. A heating apparatus with a surface acoustic wave generator is disclosed. In one embodiment of the invention, a heating apparatus comprise a surface acoustic wave generator having a piezoelectric substrate and inter-digital transducers (IDT) formed on the piezoelectric substrate, and a thermal reaction part is formed at the part of the piezoelectric substrate.

Abstract: A 4-cycle engine for a motorcycle has a secondary-air supplier for supplying secondary air to exhaust ducts. The engine includes a recess, which is depressed toward the engine, on a cylinder-head cover for holding a control valve of the secondary-air supplier. The recess and the control valve are positioned between two innermost cylinders of the array of the cylinders. Check valves, which are connected to downstream regions of the control valve, are each disposed between two outermost cylinders of the array of the cylinders.

Abstract: A moving object restorer is provided with a connecting cord having one end held at a fixed position and the other end connected with a moving object, a guiding member fixedly provided between the moving object and the fixed position for guiding the connecting cord, a regulator movably provided between the guiding member and the fixed position and having a holder portion for holding the connecting cord slidably. The regulator is movable between a first position for allowing the moving object to be moved and a second position for holding the moving object in a restored position.

Abstract: A multibeam antenna reflector having a reflection surface expressed by a combination of at least first and second corrected surface functions which are individually corrected so that they can have a large beam deviation angle. The respective corrected surface functions are combined together by being weighted and averaged with each other.

Abstract: A device for splashing liquid in the form of droplets from a piezo electric material with cuts on the surface thereof. Electrodes are formed on the surface to apply an AC voltage thereto. The voltage input is pulsed. The pulsed voltage causes a Rayleigh mode wave to propagate along the surface. Liquid also propagates along the surface, and the wave causes some of the liquid to splash off the surface as droplets.