该弹性波元件抑制弹性波的传播特性的变动，具有高可靠性。

The elastic wave element suppresses variation in propagation characteristics of the elastic wave and exhibits high reliability.

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用于电子元件特别是声学表面波元件的多路印刷线路板以及在多路印刷板上构造针脚焊点，焊接架，隔片等的方法。

Multiple printed circuitboard for electronic components esp. acoustic surface wave elements, and method for constructing bumps, soldering frames, spaces on said multiple printed circuitboard.

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采用了直流斩波和全桥逆变技术，以IGBT为直流斩波元件、IPM模块为全桥逆变元件实现了高压电源的高效小型化。

With technology of DC chopper and H-bridge inverter used, IGBT is used as DC chopper and IPM is used as H-bridge inverter to realize a small volume of the power source.

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