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:
Apr. 28, 2015
Filed:
Mar. 10, 2010
Katsumoto Hosokawa, Tokyo, JP;
Takahiro Kojima, Tokyo, JP;
Toshikazu Takata, Yokohama, JP;
Kazuko Nakazono, Yokohama, JP;
Yasuhiro Kohsaka, Yokohama, JP;
Yasuhito Koyama, Yokohama, JP;
Toshihide Hasegawa, Yokohama, JP;
Ryota Seto, Yokohama, JP;
Katsumoto Hosokawa, Tokyo, JP;
Takahiro Kojima, Tokyo, JP;
Toshikazu Takata, Yokohama, JP;
Kazuko Nakazono, Yokohama, JP;
Yasuhiro Kohsaka, Yokohama, JP;
Yasuhito Koyama, Yokohama, JP;
Toshihide Hasegawa, Yokohama, JP;
Ryota Seto, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A diol from which a resin material having high processability and a high refractive index can be manufactured, a polycarbonate resin and a polyester resin which is a polymer of the diol, and a molded article and an optical element formed of the polymer. The diol is represented by the general formula (1) shown below; the polycarbonate resin and the polyester resin are polymers thereof; and the molded article and the optical element are formed of the polymers, wherein R1 and R2 each independently denote one of a hydrogen atom and an alkyl group having 1 or more and 6 or less carbon atoms; Q denotes one of an oxyethylene group, a thioethylene group and a single bond.