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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 5264152 B1

PDFFull Text
Date of Patent:
Nov. 23, 1993

Filed:

Apr. 07, 1992

Optically active compound, liquid crystal composition and liquid crystal

Applicant:
Inventors:

Makoto Shiomi, Tenri, JP;

Mitsuhiro Koden, Nara, JP;

Tomoaki Kuratate, Nara, JP;

Fumiaki Funada, Yamatokoriyama, JP;

Assignee:

Sharp Kabushiki Kaisha, Osaka, JP;

Attorney:

Birch, Stewart, Kolasch & Birch

Primary Examiner:

Robert L Stoll

Assistant Examiner:

Shean C Wu

Int. Cl.
CPC ...
C09K / ; C09K / ; C07C / ; C07C / ;
U.S. Cl.
CPC ...
25229967 ; 25229901 ; 25229963 ; 25229966 ; 560-8 ; 560 55 ; 560 59 ; 560 62 ; 560 64 ; 560 65 ; 560100 ; 560102 ; 560118 ; 560121 ; 560123 ; 560124 ;
Abstract

An optically active compound represented by the formula (I): ##STR1## wherein R is a straight or branched chain alkyl or alkoxy group having 1 to 15 carbon atoms, ##STR2## is a 1,4-cyclohexylene or 1,4-phenylene group, ##STR3## is a 1,4-phenylene or 3-fluoro-1,4-phenylene group, X is a mono-, di- or tri-fluoromethyl group, W is a straight or branched chain or cyclic alkylene group having 1 to 16 carbon atoms or a straight or branched chain alkenylene group having 2 to 16 carbon atoms, Y is a bond or --COO--, and Z is a straight or branched chain alkyl group having 1 to 8 carbon atoms, a phenyl group or a hydrogen atom, which is useful as a component of ferroelectric liquid crystal compositions or as a device utilizing said composition.

Find Patent Forward Citations

Shiomi, Makoto. (1993). Optically active compound, liquid crystal composition and liquid crystal (U.S. Patent No. 5264152). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5264152

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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