logo

For the Inventor, By the Inventor

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 7497970 B1

PDFFull Text
Expired
Date of Patent:
Mar. 03, 2009

Filed:

Mar. 30, 2007

Chiral agent for liquid crystal, liquid crystal composition and polymer, as well as filter for optical recording medium, optical recording medium and color filter liquid for crystal

Applicant:

Masatoshi Yumoto, Shizuoka, JP;

Inventor:

Masatoshi Yumoto, Shizuoka, JP;

Assignee:

FUJIFILM Corporation, Tokyo, JP;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Shean C Wu

Int. Cl.
CPC ...
C09K 19/54 (2006.01); G11B 7/24 (2006.01); C08K 5/51 (2006.01); C08K 5/5399 (2006.01); G02F 1/133 (2006.01);
U.S. Cl.
CPC ...
Abstract

The chiral agent used for liquid crystal according to the present invention comprises a phosphoric acid amide represented by General Formula (1) below: in General Formula (1), the binaphthyl structure has an axial asymmetry of either (R) or (S); Rand Rmay be identical or different and each represents a hydrogen atom, a halogen atom, an alkyl group, an aryl group, an alkenyl group, an alkynyl group or an alkoxy group; Rand Rmay be identical or different and each represents a hydrogen atom, an alkyl group or an aryl group.

Find Patent Forward Citations

Quick Actions:

Yumoto, Masatoshi. (2009). Chiral agent for liquid crystal, liquid crystal composition and polymer, as well as filter for optical recording medium, optical recording medium and color filter liquid for crystal (U.S. Patent No. 7497970). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7497970

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

Loading…