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:
Jul. 20, 2010
Filed:
Jun. 06, 2003
Applicants:
Sou Miyata, Matsudo, JP;
Kazuya Katoh, Arlington, MA (US);
Shin Kubota, Yokohama, JP;
Inventors:
Assignee:
Lintec Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 3/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides an optical disk producing sheet, obtained by laminating a stamper-receiving layerthat is energy rays-curable and whose storage elastic modulus prior to curing is from 10to 10Pa, and an adhesive layerwhose adhesive strength to polycarbonate is at least 200 mN/25 mm, and whose storage elastic modulus during the curing of the stamper-receiving layeris from 10to 10Pa. With the optical disk producing sheet, separation that occurs during the production of an optical disk, or during the storage of the finished product, is prevented, and warpage in the resulting optical disk is reduced.