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:
Nov. 24, 1998
Filed:
May. 14, 1997
Hiroshi Mineta, Tsukuba, JP;
Tomoyuki Yui, Tsukuba, JP;
Masahiro Johno, Tsukuba, JP;
Seiji Adachi, Tsukuba, JP;
Yuki Motoyama, Tsukuba, JP;
Mitsubishi Gas Chemical Company, Inc., Tokyo, JP;
Abstract
�I! An optically active compound of the formula (1), ##STR1## wherein R.sup.1 is a linear alkyl group, each of X.sup.1 and X.sup.2 is a hydrogen atom or one of X.sup.1 and X.sup.2 is a hydrogen atom and the other is a fluorine atom, each of Y.sup.1 and Y.sup.2 is a hydrogen atom or one of Y.sup.1 and Y.sup.2 is a hydrogen atom and the other is a fluorine atom, m is an integer of 3 to 10, and C* is an asymmetric carbon atom, �II! an anti-ferroelectric liquid crystal composition consisting essentially of the optically active compound of the above formula (1) and a compound of the formula (2), ##STR2## and �III! a ferrielectric liquid crystal composition consisting essentially of the optically active compound of the formula (1) and a compound of the formula (3). ##STR3##