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:
Apr. 15, 1980
Filed:
Nov. 13, 1978
Applicant:
Inventors:
Assignees:
Dainippon Inc. & Chemicals, Inc., Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C09K / ; G02F / ;
U.S. Cl.
CPC ...
252299 ; 2604 / ; 350350 ;
Abstract
Novel compounds of the formula ##STR1## wherein R represents a linear alkyl group containing 1 to 9 carbon atoms. When added to nematic liquid crystals for electro-optical display elements, these compounds enable the liquid crystals to be operated at low voltages.