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:
Nov. 04, 2014
Filed:
Aug. 13, 2007
Noriyuki Kato, Tokyo, JP;
Kunitoshi Mimura, Tokyo, JP;
Noriyuki Kato, Tokyo, JP;
Kunitoshi Mimura, Tokyo, JP;
Mitsubishi Gas Chemical Company, Inc, Tokyo, JP;
Abstract
According to the present invention, a polycarbonate resin having a repeat unit represented by the following formula (1) and a repeat unit represented by the following general formula (2), and an optical film using the same, can be provided. In the formula, Y is a cycloalkylene group having a carbon number of 4 through 20 or a structure represented by the following general formula (3). In the general formula (3), R, R, Rand Rare independently a hydrogen atom or a monovalent alkyl group having a carbon number of 1 through 5.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile