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:
Sep. 10, 1991
Filed:
Sep. 19, 1989
Applicant:
Inventors:
Shinichi Saito, Yokohamashi, JP;
Takashi Inukai, Yokohamashi, JP;
Hiromichi Inoue, Yokohamashi, JP;
Kazutoshi Miyazawa, Yokohamashi, JP;
Kouji Ohno, Yokohamashi, JP;
Makoto Ushioda, Kawasakishi, JP;
Assignee:
Chisso Corporation, Osakafu, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K / ; C09K / ; C09K / ;
U.S. Cl.
CPC ...
25229961 ; 25229965 ; 25229966 ; 544238 ; 544242 ; 560 62 ; 560 63 ;
Abstract
Novel compounds characterized by increased spontaneous polarization values as one of the important specific features required for ferroelectric liquid crystal compositions, a liquid crystal composition containing the same, and an optical switching element utilizing the composition as a liquid crystal. The compounds are expressed by the formula (I) or (I') ##STR1##