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:
Jan. 16, 1990
Filed:
Jan. 07, 1988
Applicant:
Inventors:
Takashi Takayanagi, Fujinomiya, JP;
Hideo Kawaguchi, Fujinomiya, JP;
Assignee:
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K / ;
U.S. Cl.
CPC ...
25229901 ; 2522995 ; 25229962 ; 25229966 ; 3503 / ; 3503 / ;
Abstract
A liquid crystal optical element comprising a polymeric liquid crystal composition is disclosed, wherein the composition contains at least one compound selected from adamantane, an adamantane derivative, terphenyl, and a terphenyl derivative in an amount of from 0.01 to 15% by weight based on a polymeric liquid crystal. The optical element exhibits uniform vertical orientation.