发明名称 |
Piezoelectric or pyroelectric polymer input element for use as a transducer in keyboards |
摘要 |
An input element for use as a transducer in keyboards is disclosed, which utilizes a polymeric material having piezoelectric or pyroelectric property as a stimulus-receiving portion of the element. The element has a plurality of stimulus-receiving portions. One face of each of stimulus-receiving portions has mutually independent electrodes, of which one is for detecting signal and another is for earthing, and another face of each stimulus-receiving portions has mutually independent electrodes, of which one is for detecting signal and another is for earthing. The signal-detecting electrode on the one face is disposed corresponding to the earthing electrode on the another face.
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申请公布号 |
US4234813(A) |
申请公布日期 |
1980.11.18 |
申请号 |
US19790028822 |
申请日期 |
1979.04.10 |
申请人 |
TORAY INDUSTRIES, INC. |
发明人 |
IGUCHI, HEISHABURO;OHIGASHI, HIROJI |
分类号 |
G06F3/02;H01H13/00;H01L37/02;H01L41/113;H03K17/96;H03K17/965;(IPC1-7):H01L41/08;H01L41/18 |
主分类号 |
G06F3/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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