Abstract:
An elastic boundary wave device of the present invention includes a plurality of elastic boundary wave elements. The elastic boundary wave elements each include a piezoelectric material layer, an electrode disposed over the piezoelectric material layer, a first dielectric layer formed over the piezoelectric material layer so as to cover the electrode, and a second dielectric layer formed over the first dielectric layer. An acoustic velocity of the second dielectric layers is faster than an acoustic velocity of the first dielectric layers, and the acoustic velocity of the second dielectric layer of at least one elastic boundary wave element from among the plurality of elastic boundary wave elements is different from the acoustic velocity of the second dielectric layer of another of the elastic boundary wave elements. This enables improving the degree of suppression in use as a filter in the elastic boundary wave device.
Abstract:
A method for producing a rubber composition, the method including: preparing a modified natural rubber by releasing protein from rubber particles in a natural rubber latex by adding at least one organic compound selected from formaldehyde, paraformaldehyde, formalin, and glyoxal to the above mentioned natural rubber latex and then drying so as to include the released protein therein; and mixing at least one selected from carbon black and silica in this modified natural rubber. Such method reduces viscosity and improves molding processibility of the rubber composition, as well as reducing hysteresis loss.
Abstract:
In an acoustic wave filter, a notch resonator is connected in series (or parallel) with a plurality of acoustic wave resonators connected in a ladder shape. The notch resonator has a main resonant frequency that is substantially equal to a sub-resonant frequency of the acoustic wave resonators. With this configuration, the occurrence of sub-resonant responses in filter characteristics can be suppressed, resulting in an improvement in communication characteristics.
Abstract:
A solid state image pickup apparatus that can read a signal charge correctly is provided. A peripheral area of a photoelectric conversion area 400 where photoelectric conversion pixels are formed has common output line forming areas 401a and 401b where common output lines for transmitting electric signals from the above described photoelectric conversion area. A plurality of inner lenses are formed in a constant pitch in an inner lens forming area 402 including a photoelectric conversion area 400 and the above described peripheral area. A plurality of inner lenses located in the outer peripheral part of the inner lens forming area 402 are arranged not to overlap with the common output lines.
Abstract:
There is provided a resonant circuit includes a resonator, an inductor connected in parallel with the resonator, and a capacitor connected in parallel with the resonator. There are also provided a filter and an antenna duplexer having the above-described resonant circuit.
Abstract:
An image sensing device comprises: a pixel array in which a plurality of pixels are arrayed; and a plurality of column amplification units that amplify a plurality of signals that are output in parallel from the pixel array, wherein each of the column amplification units includes: a differential amplifier including an amplification unit and a constant current circuit, the amplification unit amplifying a signal that is output from the pixels and outputting the signal to an output node, the constant current circuit being arranged between the amplification unit and a ground terminal and supplying a current to the amplification unit; and a clip unit that clips a voltage of the output node when the differential amplifier amplifies the signal and thereby clipping a voltage of a connection node connecting the amplification unit to the constant current circuit in the differential amplifier.
Abstract:
An acoustic wave device includes a piezoelectric substrate, a first dielectric film formed on the piezoelectric substrate, and electrodes that are provided on the first dielectric film and excite an acoustic wave, the electrodes including electrode fingers. At least a part of the first dielectric film is cut out between adjacent electrode fingers among the electrode fingers.
Abstract:
The prize arrangement is limited in many conventional prize-winning game machines, in which the usable area is only the floor. In a crane game machine of the present invention for grasping a prize, an object grasping system (grasping arms) grasping a prize is suspended by a first and a second wire which are respectively controlled in length by a first and a second Z mechanisms. Thus, the object grasping system can be moved in the longitudinal and the vertical direction, and a direction of the grasping arms can be rotated up-and-down by a predetermined angle. As a result, the grasping arms are capable of grasping the prize disposed on a self provided on the back wall face side of the game machine.
Abstract:
An elastic wave device formed by bonding at least two surface acoustic wave devices by filling a resin therebetween is disclosed. Each of surface acoustic wave (SAW) devices includes a substrate; a functioning portion configured on the substrate; a recess that forms a space portion necessary for operation of the functioning portion, and a package that covers the surface of the substrate, and side faces of the package of the at least two SAW devices, corresponding to a portion bonded by filling of the resin between at least two SAW devices, includes the at least one cutout, and a first resin covers a portion of each of the side faces, the back faces, and the front faces of the substrate of the at least two SAW devices, and the first resin is filled with in the at least one cutout on the side faces of the package.
Abstract:
An elastic boundary wave device includes a first medium with piezoelectricity, an electrode exciting an elastic wave and provided on the first medium, a second medium made of a different material from the first medium and provided on the first medium to cover the electrode, and a sound absorbing portion provided on the second medium.