Invention Grant
- Patent Title: Electret device and electrostatic operating apparatus
- Patent Title (中): 驻极体装置和静电操作装置
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Application No.: US11928475Application Date: 2007-10-30
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Publication No.: US07804205B2Publication Date: 2010-09-28
- Inventor: Yoshiki Murayama , Naoteru Matsubara
- Applicant: Yoshiki Murayama , Naoteru Matsubara
- Applicant Address: JP Osaka
- Assignee: Sanyo Electric Co., Ltd.
- Current Assignee: Sanyo Electric Co., Ltd.
- Current Assignee Address: JP Osaka
- Agency: Ditthavong, Mori & Steiner, P.C.
- Priority: JP2006-293646 20061030
- Main IPC: G11C13/02
- IPC: G11C13/02 ; H01L23/58
Abstract:
An electret device includes an electret film capable of storing charges and a charge outflow inhibition film formed on an upper surface of a region having a high charge density in the electret film and inhibiting the charges stored in the electret film from flowing out.
Public/Granted literature
- US20080100148A1 ELECTRET DEVICE AND ELECTROSTATIC OPERATING APPARATUS Public/Granted day:2008-05-01
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