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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 5318720 B1

PDFFull Text
Date of Patent:
Jun. 07, 1994

Filed:

Jun. 06, 1991

Liquid crystal composition, liquid crystal device, display apparatus and

Applicant:
Inventors:

Takao Takiguchi, Tokyo, JP;

Takashi Iwaki, Machida, JP;

Takeshi Togano, Yokohama, JP;

Yoko Yamada, Atsugi, JP;

Shinichi Nakamura, Atsugi, JP;

Assignee:

Canon Kabushiki Kaisha, Tokyo, JP;

Attorney:

Fitzpatrick, Cella, Harper & Scinto

Primary Examiner:

Philip Tucker

Int. Cl.
CPC ...
C09K / ; C07D / ;
U.S. Cl.
CPC ...
25229961 ; 548244 ; 359 76 ; 359104 ; 359106 ;
Abstract

A mesomorphic compound represented by the following formula (I): ##STR1## wherein R.sub.1 and R.sub.2 respectively denote an alkyl group or alkoxy group each having 4-16 carbon atoms optionally substituted, halogen, --CN or --CF.sub.3. The mesomorphic compound is effective for providing a ferroelectric liquid crystal composition showing an improved low-temperature operation characteristic and a decreased temperature-dependence of response speed.

Find Patent Forward Citations

Takiguchi, Takao. (1994). Liquid crystal composition, liquid crystal device, display apparatus and (U.S. Patent No. 5318720). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5318720

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