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:
Jun. 27, 2006
Filed:
Sep. 10, 1999
Shinji Ogawa, Saitama, JP;
Tatsuo Kawara, Tokyo, JP;
Sadao Takehara, Sakura, JP;
Hiroyuki Ohnishi, Saitama, JP;
Kiyofumi Takeuchi, Tokyo, JP;
Haruyoshi Takatsu, Tokyo, JP;
Gerwald Grahe, Berlin, DE;
Rainer Bruno Frings, Berlin, DE;
Christine Fugger, Berlin, JP;
Cornelia Pithart, Berlin, JP;
Shinji Ogawa, Saitama, JP;
Tatsuo Kawara, Tokyo, JP;
Sadao Takehara, Sakura, JP;
Hiroyuki Ohnishi, Saitama, JP;
Kiyofumi Takeuchi, Tokyo, JP;
Haruyoshi Takatsu, Tokyo, JP;
Gerwald Grahe, Berlin, DE;
Rainer Bruno Frings, Berlin, DE;
Christine Fugger, Berlin, JP;
Cornelia Pithart, Berlin, JP;
Dainippon Ink and Chemicals, Inc., Tokyo, JP;
Abstract
A novel compound represented by the general formula (I), and a nematic liquid crystal composition incorporating the same. A compound represented by the general formula (I) can be produced industrially extremely easily, as shown in the examples, displays superior compatibility with current general purpose host liquid crystals as a nematic phase, and also shows little crystal precipitation at low temperatures. Moreover, by addition of a small amount of such a compound to a host liquid crystal, the liquid crystal temperature range at low temperatures can be effectively widened without any significant worsening of the various characteristics of the liquid crystal material. Consequently, a compound of the present invention is an extremely useful liquid crystal material which is suitable for various liquid crystal display elements which require a broad operating temperature range.