| 发明名称 |
IDENTIFICATION OF POLARIZATION OF PIEZOELECTRIC CERAMIC ELEMENT |
| 摘要 |
PURPOSE:To identify the direction of polarization by heating a piezoelectric ceramic element and identifying the polarity of the voltage generated between electrodes. |
| 申请公布号 |
JPS5271190(A) |
申请公布日期 |
1977.06.14 |
| 申请号 |
JP19750147578 |
申请日期 |
1975.12.10 |
| 申请人 |
MATSUSHITA ELECTRIC IND CO LTD |
发明人 |
KAWAYAMA MASARU;TAIRA MIKIO;IIO TATSUYA |
| 分类号 |
H01L41/22;G01R29/22;H01L41/00 |
主分类号 |
H01L41/22 |
| 代理机构 |
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代理人 |
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| 地址 |
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