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. 08, 2015
Filed:
May. 20, 2009
Applicants:
Hiroto Shimokawa, Ube, JP;
Takeshi Uekido, Ube, JP;
Ken Kawagishi, Ube, JP;
Hiroaki Yamaguchi, Ube, JP;
Inventors:
Hiroto Shimokawa, Ube, JP;
Takeshi Uekido, Ube, JP;
Ken Kawagishi, Ube, JP;
Hiroaki Yamaguchi, Ube, JP;
Assignee:
UBE Industries, Ltd., , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 31/0392 (2006.01); C08J 5/18 (2006.01);
U.S. Cl.
CPC ...
H01L 31/0392 (2013.01); C08J 5/18 (2013.01); H01L 31/03928 (2013.01); C08J 2379/08 (2013.01); Y02E 10/541 (2013.01); Y10T 428/31681 (2015.04);
Abstract
Disclosed is a polyimide film prepared from an aromatic tetracarboxylic acid component and an aromatic diamine component, which has a dimensional change from 25° C. to 500° C. within a range of from −0.3% to +0.6% based on the initial dimension at 25° C. The polyimide film may be used as a substrate for a CIS solar cell.