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:
Jun. 28, 1988
Filed:
Sep. 29, 1986
Applicant:
Inventors:
Assignee:
Dainippon Ink and Chemicals, Inc., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K / ; C09K / ; C09K / ; C07C / ;
U.S. Cl.
CPC ...
560-8 ; 560 64 ; 560 72 ; 25229964 ; 25229901 ; 2522996 ;
Abstract
A novel optically active compound of the formula ##STR1## is capable of forming a chiral nematic liquid crystal composition having short spiral pitch by adding a small amount of it to a generally nematic liquid crystal composition. The compound of this invention is useful in the manufacture of SBE display device which is excellent especially in high level multiplexing driving system.