Abstract:
A SAW element has a substrate; an IDT electrode located on an upper surface of the substrate and comprises Al or an alloy containing Al; a first film located on an upper surface of the IDT electrode; and a protective layer which covers the IDT electrode provided with the first film and the portion of the substrate exposed from the IDT electrode, which has a thickness from the upper surface of the substrate larger than a total thickness of the IDT electrode and first film, and which contains a silicon oxide. The first film contains a material which has a larger acoustic impedance than the material (Al or the alloy containing Al) of the IDT electrode and the silicon oxide and which has a slower propagation velocity of an acoustic wave than the material of the IDT electrode and the silicon oxide.
Abstract:
A SAW element has a substrate; an IDT electrode located on an upper surface of the substrate and comprises Al or an alloy containing Al; a first film located on an upper surface of the IDT electrode; and a protective layer which covers the IDT electrode provided with the first film and the portion of the substrate exposed from the IDT electrode, which has a thickness from the upper surface of the substrate larger than a total thickness of the IDT electrode and first film, and which contains a silicon oxide. The first film contains a material which has a larger acoustic impedance than the material (Al or the alloy containing Al) of the IDT electrode and the silicon oxide and which has a slower propagation velocity of an acoustic wave than the material of the IDT electrode and the silicon oxide.
Abstract:
To provide a piezoelectric transformer which can reduce the capacity of an input unit and realize a impedance matching with a drive circuit of an input side. A piezoelectric transformer includes: a piezoelectric substrate (11) having both main surfaces of a rectangular shape; and input side electrodes (12, 13, 15, 16) and output side electrodes (14, 17) formed on the both main surfaces of the piezoelectric substrate (11). A pair of opposing input side electrodes (12, 13, 15, 16) are arranged on the both surfaces of the piezoelectric substrate (11) in the first input unit (A1) and the second input unit (A2). At least one of the pair of input side electrodes (12, 13, 15, 16) is a partial electrode arranged at the center portion of the main surface of the piezoelectric substrate (11) in the first input unit (A1) and the second input unit (A2).
Abstract:
An image forming apparatus, that is controlled to perform image output based on electrophotography, includes: an image processor for outputting input image information in the form of image data for forming images; and, an image forming portion for forming images on a sheet of paper based on the image data output from the image processor. The image processor has a function which, in accordance with folding information for folding the paper with images formed thereon, sets the images to be formed on the page of the folded paper whose folded sections oppose each other when the paper has been folded.
Abstract:
A fuel cell assembly has a housing defining an electricity generation/combustion chamber, and electricity generation/combustion means disposed within the housing. A fuel gas and an oxygen-containing gas are supplied to the electricity generation/combustion means, and a combustion gas formed within the electricity generation/combustion chamber is discharged from the electricity generation/combustion chamber. A heat exchanger having a first channel and a second channel is disposed on at least one surface of the housing, the combustion gas is discharged from the interior of the electricity generation/combustion chamber through the first channel of the heat exchanger, and one of the oxygen-containing gas and the fuel gas is supplied to the electricity generation/combustion means through the second channel of the heat exchanger. A plurality of electricity generation units are arranged in parallel within the housing, and each of the electricity generation units includes a cell stack constituting the electricity generation/combustion means.
Abstract:
The image forming apparatus includes: an image processor; an image forming portion for forming images on recording paper based on the image data output from the image processor; a folding mechanism for folding the recording paper with images formed by the image forming portion when the input image information is confidential image information; and a stapling mechanism for binding the recording paper folded by the folding mechanism, at the end part when the input image information is confidential image information. When the input image information is confidential image information, the image processor outputs the pouch-binding image data for a pouch-bound image to be formed on the facing pages of the recording paper that is folded by the folding mechanism, by editing the layout of the confidential image.
Abstract:
In the correction of the quantity of light of a light source used in an image reader which irradiates an original document with the light source, receives the reflected light by a CCD and reads the original document image, at the time of a document moving mode in which the document moves, correction of the quantity of irradiation light of the light source is performed by reading a first standard white board which extends over the whole area in the main scanning direction, prior to the initiation of readout of the moving document, and upon initiation of readout of the moving document, a second standard white board arranged outside the document passing area is read by using the same light source, with the read operation of the moving document, and correction of the quantity of irradiation light of the light source is performed based on the reflected light from the second white board.
Abstract:
A CPU includes a bus interface, a control unit, an instruction cache, a data cache, a secondary cache, an instruction decoder, an arithmetic unit, and registers. When operations can be performed only with the cache, the CPU inhibits access to external memory and stops power supply to the external memory. With this arrangement, by performing operations in the CPU without using the external memory, it is possible to realize a speedy processing and to stop power supply to the external memory, thus allowing for reduction in power consumption.
Abstract:
An automatic document feeder for a copier has the position for reading the image of an original fed by the automatic document feeder disposed near the rear edge of the original table of the copier. In this automatic document feeder, essential parts such as a pickup roller, etc., for feeding originals to the reading position of the original table are arranged concentratedly on the rear side of the copier. Therefore, the center of gravity of the automatic document feeder resides near the rear side of the copier. This automatic document feeder is hinged at the rear side of the copier so as to cover the top surface of the original table in an openable and closable manner. Accordingly, the automatic document feeder is opened and closed with respect to the top of the copier, at a pivot which resides on the rear side near the center of gravity thereof.
Abstract:
A fuel cell assembly has a housing defining an electricity generation/combustion chamber, and electricity generation/combustion means disposed within the housing. A fuel gas and an oxygen-containing gas are supplied to the electricity generation/combustion means, and a combustion gas formed within the electricity generation/combustion chamber is discharged from the electricity generation/combustion chamber. A heat exchanger having a first channel and a second channel is disposed on at least one surface of the housing, the combustion gas is discharged from the interior of the electricity generation/combustion chamber through the first channel of the heat exchanger, and one of the oxygen-containing gas and the fuel gas is supplied to the electricity generation/combustion means through the second channel of the heat exchanger. A plurality of electricity generation units are arranged in parallel within the housing, and each of the electricity generation units includes a cell stack constituting the electricity generation/combustion means.