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:
Jul. 05, 2005
Filed:
Aug. 23, 1999
Shinji Ogawa, Ohmiya, JP;
Hiroyuki Ohnishi, Urawa, JP;
Yutaka Nagashima, Ageo, JP;
Sadao Takehara, Sakura, JP;
Makoto Negishi, Tokyo, JP;
Haruyoshi Takatsu, Tokyo, JP;
Gerwald Grahe, Berlin, DE;
Rainer Bruno Frings, Berlin, DE;
Christine Fugger, Berlin, DE;
Cornelia Pithart, Berlin, DE;
Shinji Ogawa, Ohmiya, JP;
Hiroyuki Ohnishi, Urawa, JP;
Yutaka Nagashima, Ageo, JP;
Sadao Takehara, Sakura, JP;
Makoto Negishi, Tokyo, JP;
Haruyoshi Takatsu, Tokyo, JP;
Gerwald Grahe, Berlin, DE;
Rainer Bruno Frings, Berlin, DE;
Christine Fugger, Berlin, DE;
Cornelia Pithart, Berlin, DE;
Dainippon Ink and Chemicals, Inc., Tokyo, JP;
Abstract
The present invention discloses a decahydronaphthalene derivative represented by general formula (I):a liquid crystal composition in which it is contained, and a liquid crystal device in which it is used. The novel decahydronaphthalene derivative of the present invention can be produced industrially extremely easily as shown in the examples, and by adding a small amount to a base liquid crystal, it is possible to have effects that expand the nematic phase temperature range, thereby improving its various characteristics as a nematic liquid crystal. Moreover, the novel decahydronaphthalene derivative of the present invention also has superior co-solubility with base liquid crystals generally used at present. Thus, it is suitable for various types of liquid crystal devices requiring a wide operating temperature range, and is extremely useful as a liquid crystal material.