Invention Grant
- Patent Title: Film capacitor
- Patent Title (中): 薄膜电容器
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Application No.: US14398989Application Date: 2013-05-20
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Publication No.: US09595389B2Publication Date: 2017-03-14
- Inventor: Hiroki Takeoka , Yasuhiro Hiraki
- Applicant: Panasonic Intellectual Property Management Co., Ltd.
- Applicant Address: JP Osaka
- Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Current Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Current Assignee Address: JP Osaka
- Agency: Wenderoth, Lind & Ponack, L.L.P.
- Priority: JP2012-121546 20120529
- International Application: PCT/JP2013/003179 WO 20130520
- International Announcement: WO2013/179605 WO 20131205
- Main IPC: H01G4/015
- IPC: H01G4/015 ; H01G4/08 ; H01G4/18 ; H01G4/008 ; H01G4/14 ; H01G9/10 ; H01G9/15

Abstract:
A film capacitor includes a first electrode layer, a second electrode layer, and a dielectric film disposed between the first and second electrode layers. The dielectric film mainly contains a styrene polymer having a syndiotactic structure. The first electrode layer includes first small electrode segments and a first fuse which interconnects the first small electrode segments. A value obtained by dividing an area of each of the plurality of first small electrode segments by the third power of a thickness of the dielectric film is not smaller than 0.4×1013/m and not larger than 5.0×1013/m. The film capacitor has a high withstanding voltage.
Public/Granted literature
- US20150116904A1 FILM CAPACITOR Public/Granted day:2015-04-30
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