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.

Date of Patent:
Sep. 05, 2006

Filed:

Apr. 30, 2002
Applicants:

Masayuki Sekiguchi, Ichihara, JP;

Yasuhiro Sakakura, Ichihara, JP;

Hiraku Shibata, Ichihara, JP;

Inventors:

Masayuki Sekiguchi, Ichihara, JP;

Yasuhiro Sakakura, Ichihara, JP;

Hiraku Shibata, Ichihara, JP;

Assignee:

JSR Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B02B 27/00 (2006.01); C08F 277/00 (2006.01); F21V 9/14 (2006.01); F21V 9/00 (2006.01); G02B 1/04 (2006.01); G02B 5/30 (2006.01);
U.S. Cl.
CPC ...
Abstract

A thermoplastic norbornene resin which displays a high degree of toughness, and for which the exhibited retardation and the wavelength dependency of that retardation can be controlled is provided, which is formed from a copolymer with a structural unit represented by a general formula (1) and a structural unit represented by a general formula (2).


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