Invention Grant
- Patent Title: Film capacitor, and film for film capacitors
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Application No.: US17743598Application Date: 2022-05-13
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Publication No.: US11948748B2Publication Date: 2024-04-02
- Inventor: Tomoki Inakura , Tomomichi Ichikawa , Atsushi Kawabata
- Applicant: Murata Manufacturing Co., Ltd. , Shizuki Electric Co., Inc.
- Applicant Address: JP Nagaokakyo
- Assignee: MURATA MANUFACTURING CO., LTD.,SHIZUKI ELECTRIC CO., INC.
- Current Assignee: MURATA MANUFACTURING CO., LTD.,SHIZUKI ELECTRIC CO., INC.
- Current Assignee Address: JP Nagaokakyo; JP Nishinomiya
- Agency: ArentFox Schiff LLP
- Priority: JP 19237616 2019.12.27
- Main IPC: H01G4/14
- IPC: H01G4/14 ; C08G18/48 ; C08G18/76 ; H01G4/232 ; H01G4/248 ; H01G4/32 ; H01G4/33

Abstract:
A film capacitor that includes a dielectric resin film containing a cured product of a first organic material and a second organic material; and a metal layer on at least one surface of the dielectric resin film. The first organic material contains an organic polymer having a hydroxy group and a benzene ring in a repeating unit; the second organic material contains 4,4′-diphenylmethane diisocyanate, a modified product of 4,4′-diphenylmethane diisocyanate, or a mixture thereof; and 400 ppm to 700 ppm of chlorine ions and 300 ppm to 500 ppm of phosphorus ions are present inside the dielectric resin film.
Public/Granted literature
- US20220270823A1 FILM CAPACITOR, AND FILM FOR FILM CAPACITORS Public/Granted day:2022-08-25
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