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:
Mar. 01, 1994
Filed:
Jul. 29, 1993
Hitoshi Kondo, Kanagawa, JP;
Mika Tadokoro, Kanagawa, JP;
Hiroshi Sugiyama, Kanagawa, JP;
Toshimitsu Hagiwara, Kanagawa, JP;
Takashi Imai, Kanagawa, JP;
Mamoru Yamada, Kanagawa, JP;
Keisuke Itakura, Kanagawa, JP;
Takasago International Corporation, Tokyo, JP;
Abstract
An optically active compound represented by formula (I): ##STR1## wherein R.sup.1 represents an alkyl group having from 3 to 9 carbon atoms; R.sup.2 represents an alkyl group having from 3 to 7 carbon atoms; m and n each represent 1 or 2 provided that they do not simultaneously represent 1; and C.sup.*1 and C.sup.*2, both represent an optically active carbon atom, and a liquid crystal composition containing the same are disclosed. The compound exhibits chiral nematic and smectic phases and are excellent as a chiral dopant for ferroelectric liquid crystal compositions or nematic liquid crystal compositions.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile