The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 01, 2020
Filed:
Mar. 31, 2015
Oji Holdings Corporation, Tokyo, JP;
Toshiaki Taniike, Nomi, JP;
Minoru Terano, Nomi, JP;
Ikki Katada, Nomi, JP;
Tadakazu Ishiwata, Tokyo, JP;
Masahiro Nakata, Tokyo, JP;
OJI HOLDINGS CORPORATION, Tokyo, JP;
Abstract
A main object is to provide a biaxially stretched polypropylene film for capacitors that has high voltage resistance at high temperatures and excellent dielectric breakdown properties and that can be formed into an ultrathin film. Furthermore, a capacitor obtained by using the biaxially stretched polypropylene film for capacitors described above is provided. The biaxially stretched polypropylene film for capacitors, includes a polypropylene resin, and the film has a spacing value of (040) face of α-crystal measured by X-ray diffraction of 0.525 to 0.530 nm.