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.:

US 7425354 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 16, 2008

Filed:

Nov. 19, 2004
Applicants:

Motoki Yanai, Chiba, JP;

Kazuhiko Saigusa, Chiba, JP;

Ryushi Shundo, Chiba, JP;

Yoshiharu Hirai, Chiba, JP;

Inventors:

Motoki Yanai, Chiba, JP;

Kazuhiko Saigusa, Chiba, JP;

Ryushi Shundo, Chiba, JP;

Yoshiharu Hirai, Chiba, JP;

Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 19/52 (2006.01); C09K 19/38 (2006.01); C09K 19/34 (2006.01); C09K 19/32 (2006.01); C09K 19/30 (2006.01); C09K 19/12 (2006.01); C09K 19/20 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention provides a photopolymerizable liquid crystal composition comprising at least a compound having oxiranyl as a first component and at least a compound having oxetanyl as a second component, a polymer or a polymer composition obtained from the liquid crystal composition, a film obtained from the polymer or polymer composition, and an optical compensation element using the film.


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