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.:
Date of Patent:
Sep. 19, 2006
Filed:
Feb. 08, 2002
Osamu Yokokouji, Kanagawa, JP;
Tamon Tachibana, Kanagawa, JP;
Masaki Oiwa, Kanagawa, JP;
Kanetaka Shimizu, Kanagawa, JP;
Takeshi Koike, Kanagawa, JP;
Osamu Yokokouji, Kanagawa, JP;
Tamon Tachibana, Kanagawa, JP;
Masaki Oiwa, Kanagawa, JP;
Kanetaka Shimizu, Kanagawa, JP;
Takeshi Koike, Kanagawa, JP;
Seimi Chemical Co., Ltd., Chigasaki, JP;
Abstract
It is to provide a liquid crystal composition containing at least one type of optically active compounds of the following formulae (1) to (4), and a liquid crystal electro-optical element excellent in display quality. In each formula, C* is asymmetric carbon, and the respective symbols are as defined in descriptionR-A-C*HX—Y-A-(Z-A)-C≡C-A-(Z-A)-R  (1)R-A-C*HX—Y-A-Z-A-Z-A-R  (2)R-Pn-C*HX—CH-A-Y-A-R  (3)