Title:
ELECTROSTATIC INDUCTION TYPE MECHANICAL-ELECTRICAL CONVERSION ELEMENT
Document Type and Number:
WIPO Patent Application WO/2012/070356
Kind Code:
A1
Abstract:
Disclosed is an electret which comprises a first region and a second region. The polarization direction of the first region along the thickness direction is in a first direction. The polarization direction of the second region along the thickness direction is in a second direction that is opposite to the first direction. The first region and the second region are provided adjacent to each other in a main surface direction that is parallel to a main surface, which is a surface perpendicular to the thickness direction.
Inventors:
TAKEUCHI YUKIHISA (JP)
KOBAYASHI NOBUYUKI (JP)
SUGIURA RYUTA (JP)
NANATAKI TSUTOMU (JP)
IMAI KATSUHIRO (JP)
SHIMOGAWA NATSUMI (JP)
KOBAYASHI NOBUYUKI (JP)
SUGIURA RYUTA (JP)
NANATAKI TSUTOMU (JP)
IMAI KATSUHIRO (JP)
SHIMOGAWA NATSUMI (JP)
Application Number:
PCT/JP2011/074792
Publication Date:
May 31, 2012
Filing Date:
October 27, 2011
Export Citation:
Assignee:
NGK INSULATORS LTD (JP)
TAKEUCHI YUKIHISA (JP)
KOBAYASHI NOBUYUKI (JP)
SUGIURA RYUTA (JP)
NANATAKI TSUTOMU (JP)
IMAI KATSUHIRO (JP)
SHIMOGAWA NATSUMI (JP)
TAKEUCHI YUKIHISA (JP)
KOBAYASHI NOBUYUKI (JP)
SUGIURA RYUTA (JP)
NANATAKI TSUTOMU (JP)
IMAI KATSUHIRO (JP)
SHIMOGAWA NATSUMI (JP)
International Classes:
H02N1/08; H01G7/02
Domestic Patent References:
| WO2010035507A1 | 2010-04-01 |
Foreign References:
| JP2010136598A | 2010-06-17 | |||
| JP2007298297A | 2007-11-15 | |||
| JP2009148124A | 2009-07-02 | |||
| JP2008161040A | 2008-07-10 |
Attorney, Agent or Firm:
PROSPEC PATENT FIRM (JP)
Patent business corporation Pros Peck patent firm (JP)
Patent business corporation Pros Peck patent firm (JP)
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