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. 30, 1996
Filed:
Apr. 26, 1994
Applicant:
Inventors:
Takao Takiguchi, Tokyo, JP;
Takashi Iwaki, Machida, JP;
Takeshi Togano, Yokohama, JP;
Yoko Yamada, Isehara, JP;
Shinichi Nakamura, Isehara, JP;
Ikuo Nakazawa, Atsugi, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08K / ; C08K / ; G02F / ; C07D / ;
U.S. Cl.
CPC ...
25229961 ; 544353 ; 25229962 ;
Abstract
A quinoxaline compound of the formula (I) according to claim 1 characterized by having at least one quinoxaline-2,6 (or 2,7)-diyl group is suitable as a component for a liquid crystal composition providing improved response characteristics and a high contrast. A liquid crystal device is constituted by disposing the liquid crystal composition between a pair of electrode plates. The liquid crystal device is used as a display panel constituting a display apparatus providing good display characteristics.