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:
Feb. 02, 2021
Filed:
Mar. 31, 2016
Applicant:
Oji Holdings Corporation, Tokyo, JP;
Inventors:
Yoshimune Okuyama, Kusatsu, JP;
Yoshikazu Fujishiro, Ichikawa, JP;
Masahiro Nakata, Konan, JP;
Tadakazu Ishiwata, Konan, JP;
Akihiro Kakehi, Kusatsu, JP;
Assignee:
OJI HOLDINGS CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01G 4/33 (2006.01); H01G 4/18 (2006.01); C08L 23/12 (2006.01); H01G 4/14 (2006.01); C08J 5/18 (2006.01);
U.S. Cl.
CPC ...
H01G 4/33 (2013.01); C08J 5/18 (2013.01); C08L 23/12 (2013.01); H01G 4/14 (2013.01); H01G 4/18 (2013.01); C08J 2323/12 (2013.01); C08L 2203/16 (2013.01);
Abstract
The present invention relates to a biaxially stretched polypropylene film for capacitor. The biaxially stretched polypropylene film for capacitor of the present invention can suppress an increase in tan δ and a decrease in the electrostatic capacitance even when the capacitor is used at a high voltage and an elevated temperature for a long duration.