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:
Mar. 10, 1998
Filed:
May. 08, 1995
Applicant:
Inventors:
Yuuichirou Tatsuki, Sodegaura, JP;
Shinichi Nishiyama, Sodegaura, JP;
Junichi Kawabata, Sodegaura, JP;
Tooru Yamanaka, Sodegaura, JP;
Chiho Tanaka, Sodegaura, JP;
Assignee:
Mitsui Petrochemical Industries, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K / ; C07C / ; G02F / ;
U.S. Cl.
CPC ...
25229962 ; 25229961 ; 25229963 ; 25229966 ; 25229967 ; 560 56 ; 560 80 ; 349182 ;
Abstract
There is provided a carboxylic acid compound represented by the following formulae (I) to (IV): ##STR1## a liquid crystal material consisting of the carboxylic acid ester compound, a liquid crystal composition comprising the carboxylic acid ester compound, and a liquid crystal element using the carboxylic acid ester compound. There can be obtained advantages such as low operating temperature, high speed switching, very small electric power consumption, and high-stable contrast.