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Title:
金属化フィルムコンデンサ及びコンデンサ素子
Document Type and Number:
Japanese Patent JP4800795
Kind Code:
B2
Abstract:

To provide a metallized film capacitor in which moisture resistance is high and capacitance reduction is difficult to occur.

In a capacitor element 1 included in the metallized film capacitor, a side of a winding object 2 to which a pair of metallized films are wound with thickness of 12 μm is coated with a moisture absorption prevention film 3 functioning as an insulated protection layer, a wetproof enhanced multilayer laminated film 4, and a polyester adhesive tape 5 in order from an inner side. Electrode drawing-out parts 6 are attached in both end faces of the winding object 2 by thermally spraying a metal. The moisture-proof enhanced multilayer laminated film 4 has performance of oxygen transmittance of 5.0 cm3/(m2×day×MPa) or below, and water vapor transmittance of 0.3g/(m2×day) or below. The moisture-proof enhanced multilayer laminated film 4 is wound to the side of the winding object 2 twice.

COPYRIGHT: (C)2007,JPO&INPIT


Inventors:
Takahiro Masuyama
Shusaku Tsujio
Kimura Isamu
Application Number:
JP2006050565A
Publication Date:
October 26, 2011
Filing Date:
February 27, 2006
Export Citation:
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Assignee:
Nichicon Co., Ltd.
International Classes:
H01G4/224; H01G2/10; H01G4/18; H01G4/32
Domestic Patent References:
JP2002008940A
JP2005277101A
JP2004330669A
Attorney, Agent or Firm:
Yoshiyuki Kaji
Makoto Suhara