发明授权
- 专利标题： Electret device and electrostatic induction conversion apparatus comprising the same
- 专利标题（中）： 包括该驻极体装置和静电感应转换装置
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申请号： US11864488申请日： 2007-09-28
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公开(公告)号： US07956497B2公开(公告)日： 2011-06-07
- 发明人: Yoshiki Murayama , Naoteru Matsubara , Katsuji Mabuchi
- 申请人： Yoshiki Murayama , Naoteru Matsubara , Katsuji Mabuchi
- 申请人地址： JP Osaka
- 专利权人： Sanyo Electric Co., Ltd.
- 当前专利权人： Sanyo Electric Co., Ltd.
- 当前专利权人地址： JP Osaka
- 代理机构： Ditthavong Mori & Steiner, P.C.
- 优先权： JP2006-267270 20060929; JP2007-072872 20070320; JP2007-227457 20070903
- 主分类号： G11C13/02
- IPC分类号： G11C13/02
摘要：
An electret device includes an electret film into which charges are injected and a barrier film provided on a surface of the electret film and having an electron affinity smaller than the electron affinity of the electret film.
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