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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 12172951 B1

PDFFull Text
Date of Patent:
Dec. 24, 2024

Filed:

Apr. 11, 2022

Anthraquinone compound, liquid crystal composition containing said compound, and dimming element

Applicant:

Nippon Kayaku Kabushiki Kaisha, Tokyo, JP;

Inventors:

Kohei Ohtani, Tokyo, JP;

Masakazu Shiraishi, Tokyo, JP;

Hitomi Muto, Tokyo, JP;

Saori Suzuki, Tokyo, JP;

Kanae Ogawa, Tokyo, JP;

Assignee:

NIPPON KAYAKU KABUSHIKI KAISHA, Tokyo, JP;

Attorney:

NIELDS, LEMACK & FRAME, LLC

Primary Examiner:

Geraldina Visconti

Int. Cl.
CPC ...
G02F 1/1333 (2006.01); C07C 323/38 (2006.01); C09B 1/58 (2006.01); C09K 19/10 (2006.01);
U.S. Cl.
CPC ...
C07C 323/38 (2013.01); C09B 1/58 (2013.01); C09K 19/10 (2013.01);
Abstract

The present invention is an anthraquinone compound represented by formula (1) (in the formula. Rrepresents a hydrogen atom, a C1-C12 linear or branched alkyl group, or a C1-C12 linear or branched alkoxy group, and Rrepresents a substituent represented by: formula (a) (in formula (a), Rrepresents a hydrogen atom, a C1-C8 linear or branched alkyl group, a C1-C8 linear or branched alkoxy group, or a substituent represented by —CHOR, where Rrepresents a C1-C8 linear or branched alkyl group); or formula (b) (in formula (b). Rrepresents a hydrogen atom, a C1-C8 linear or branched alkyl group, or a substituent represented by —CHOR, where Rrepresents a C1-C8 linear or branched alkyl group)).

Find Patent Forward Citations

Ohtani, Kohei. (2024). Anthraquinone compound, liquid crystal composition containing said compound, and dimming element (U.S. Patent No. 12172951). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12172951

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

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