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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.:

US 4576732 B1

PDFFull Text
Date of Patent:
Mar. 18, 1986

Filed:

Nov. 28, 1983

Ferroelectric liquid crystal compounds and liquid crystal compositions

Applicant:
Inventors:

Masato Isogai, Hitachi, JP;

Shintaroo Hattori, Hitachi, JP;

Kishiroo Iwasaki, Hitachiouta, JP;

Teruo Kitamura, Katsuta, JP;

Akio Mukoh, Mito, JP;

Takashi Inukai, Yokohama, JP;

Kenji Furukawa, Yokosuka, JP;

Kanetsugu Terashima, Yokohama, JP;

Shinichi Saitoh, Yokohama, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:

Antonelli, Terry & Wands

Primary Examiner:

Teddy S Gron

Int. Cl.
CPC ...
C09K / ; G02F / ; C07C / ; C07C / ;
U.S. Cl.
CPC ...
25229965 ; 25229901 ; 2522996 ; 25229963 ; 25229964 ; 25229966 ; 25229967 ; 25229968 ; 3503 / ; 560 35 ; 560 59 ; 560 61 ; 560 72 ; 560 73 ; 560102 ; 560106 ; 560107 ; 560108 ; 560109 ;
Abstract

The present invention is characterized by a smectic liquid crystal compound represented by the following formula: ##STR1## wherein R is selected from alkyl and alkoxy groups; X from ##STR2## m and n are natural numbers; and R* is an optically active group containing an asymmetric carbon atom, and a liquid crystal composition containing said compound as a component. This compound is excellent in optical stability and high-speed response.

Find Patent Forward Citations

Isogai, Masato. (1986). Ferroelectric liquid crystal compounds and liquid crystal compositions (U.S. Patent No. 4576732). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4576732

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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