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.

Date of Patent:
Jul. 05, 2005

Filed:

Mar. 06, 2003
Applicants:

Shigeyuki Harada, Shizuoka-ken, JP;

Takuzo Aida, Tokyo, JP;

Woo-dong Jang, Tokyo, JP;

Inventors:

Shigeyuki Harada, Shizuoka-ken, JP;

Takuzo Aida, Tokyo, JP;

Woo-Dong Jang, Tokyo, JP;

Assignee:

Ricoh Company, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K019/52 ; C09K019/54 ; G11B007/24 ; G02F001/13 ;
U.S. Cl.
CPC ...
Abstract

A liquid crystalline gel composition including a liquid crystalline compound, and a gelling agent having a structural unit represented by the following formula (1):wherein Rrepresents a hydrogen atom or an organic group having at least one carbon atom, X represents a divalent organic group having at least one carbon atom, Y represents a divalent hydrocarbon group having at least one carbon atom, Rrepresents a hydrogen atom or an organic group having at least one carbon atom, and n is an integer of at least 1. A display medium including a pair of substrates each having an electrode thereon, and a layer of the above liquid crystalline gel composition interposed between the pair of substrates.


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