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:
Jan. 18, 2011
Filed:
May. 12, 2005
Katsuyuki Hashimoto, Gifu, JP;
Tetsuo Yoshida, Gifu, JP;
Makoto Tsuji, Gifu, JP;
Shinya Togano, Gifu, JP;
Katsuyuki Hashimoto, Gifu, JP;
Tetsuo Yoshida, Gifu, JP;
Makoto Tsuji, Gifu, JP;
Shinya Togano, Gifu, JP;
Teijin Dupont Films Japan Limited, Tokyo, JP;
Abstract
An object of the invention is to provide such an oriented polyester film that has a constant thickness, and is excellent in dimensional stability at a high temperature and dimensional stability to temperature change in a working temperature range. The invention relates to an oriented polyester film containing as a major component of a substrate layer polyethylene -2,6-naphthalene dicarboxylate, being stretched at least in one direction, and having a film thickness of from 12 to 250 μm, wherein