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:
Dec. 23, 2014
Filed:
Sep. 28, 2010
Applicants:
Naoki Mizuno, Otsu, JP;
Mutsuo Nishi, Tsuruga, JP;
Jun Inagaki, Tsuruga, JP;
Inventors:
Assignee:
Toyo Boseki Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23B 3/26 (2006.01); B32B 15/09 (2006.01); B32B 15/20 (2006.01); B32B 27/18 (2006.01); B32B 27/36 (2006.01); H01L 31/0216 (2014.01); B32B 3/26 (2006.01); C08J 5/18 (2006.01);
U.S. Cl.
CPC ...
H01L 31/02167 (2013.01); B32B 3/26 (2013.01); Y02E 10/52 (2013.01); C08J 5/18 (2013.01); C08J 2367/02 (2013.01); Y10S 428/9122 (2013.01);
Abstract
The invention provides a polyester film suitable for a back sheet for solar cells, which requires a high reflectance not only in the visible light region but also in the near-infrared region, and also requires a low reflection directivity. The polyester film is a cavity-containing polyester film having an average reflectance of 70-95% in a wavelength range of 400-1200 nm and an average transmittance of 5-30% in a wavelength range of 700-1200 nm.