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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 8968841 B1

PDFFull Text
Expired
Date of Patent:
Mar. 03, 2015

Filed:

Mar. 26, 2013

Binaphthyl compound, liquid crystal composition, liquid crystal element, and liquid crystal display device

Applicant:

Semiconductor Energy Laboratory Co., Ltd., Atsugi-shi, Kanagawa-ken, JP;

Inventors:

Momoko Kato, Kanagawa, JP;

Yasuhiro Niikura, Kanagawa, JP;

Yuko Kawata, Kanagawa, JP;

Tetsuji Ishitani, Kanagawa, JP;

Assignee:

Semiconductor Energy Laboratory Co., Ltd., Kanagawa-ken, JP;

Attorneys:

Nixon Peabody LLP

Jeffrey L. Costellia

Primary Examiner:

Shean C Wu

Int. Cl.
CPC ...
C09K 19/58 (2006.01); C09K 19/52 (2006.01); C07C 69/76 (2006.01); C09K 19/54 (2006.01); C09K 19/02 (2006.01); C09K 19/32 (2006.01);
U.S. Cl.
CPC ...
C09K 19/54 (2013.01); C09K 19/0275 (2013.01); C09K 2019/323 (2013.01);
Abstract

A binaphthyl compound represented by General Formula (G1) is provided. In General Formula (G1), Arrepresents any of an arylene group, a cycloalkylene group, and a cycloalkenylene group, and m is any of 0 to 3; Rrepresents any of hydrogen, an alkyl group, and an alkoxy group; and one of R and Rrepresents a substituent represented by General Formula (G2) and the other thereof represents hydrogen. In General Formula (G2), Arrepresents any of an arylene group, a cycloalkylene group, and a cycloalkenylene group, and k is any of 1 to 3; and Rrepresents any of hydrogen, an alkyl group, and an alkoxy group.

Find Patent Forward Citations

Kato, Momoko. (2015). Binaphthyl compound, liquid crystal composition, liquid crystal element, and liquid crystal display device (U.S. Patent No. 8968841). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8968841

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