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 7662444 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 16, 2010

Filed:

Jul. 13, 2005
Applicants:

Naoki Hiji, Ebina, JP;

Shigeru Yamamoto, Ebina, JP;

Inventors:

Naoki Hiji, Ebina, JP;

Shigeru Yamamoto, Ebina, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/1334 (2006.01); B01J 13/18 (2006.01);
U.S. Cl.
CPC ...
Abstract

A liquid crystal microcapsule, comprising a liquid crystal and a polyurea film encapsulating the liquid crystal, wherein at least one of an alkyl group and a fluoroalkyl group is bonded directly or indirectly via a urethane bond to the polyurea. A method of producing a liquid crystal microcapsule, comprising: forming a polyurea and the film thereof by allowing an aligner, which is a compound having a hydroxyl group and at least one of an alkyl group and a fluoroalkyl group, to react with a polyisocyanate, a polyamine, and water; and encapsulating a liquid crystal with the film. A liquid crystal display device using the liquid crystal microcapsule.


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Hiji, Naoki. (2010). Liquid crystal microcapsule, method for producing the same, and liquid crystal display device using the same (U.S. Patent No. 7662444). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7662444

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