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:
Feb. 14, 1995
Filed:
Jul. 09, 1992
Applicant:
Inventors:
Takayuki Higashii, Kishiwada, JP;
Isao Kurimoto, Toyonaka, JP;
Shoji Toda, Takarazuka, JP;
Masayoshi Minai, Moriyama, JP;
Takeshi Tani, Tsukuba, JP;
Chizu Kawakami, Tsukuba, JP;
Koichi Fujisawa, Tsukuba, JP;
Assignee:
Sumitomo Chemical Company, Limited, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K / ; C07D / ;
U.S. Cl.
CPC ...
25229961 ; 544298 ; 544315 ; 544335 ;
Abstract
Disclosed are herein optically active benzene derivatives represented by the formula (I): ##STR1## preparation processes therefor, liquid crystal composition containing such benzene derivatives as liquid-crystalline compound, and a light switching element using said liquid crystal composition as liquid crystal element, wherein R.sub.1, R.sub.2, x, y, z, m, p and s are as defined in the specification.