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:
May. 05, 1998
Filed:
Sep. 09, 1996
Applicant:
Inventors:
Norio Yamamoto, Kariya, JP;
Takayuki Fujikawa, Ofu, JP;
Shunichi Koide, Tokyo, JP;
Yoshiichi Suzuki, Tokyo, JP;
Assignee:
Nippondenso Co., Ltd., Aichi-pref., JP;
Primary Examiner:
Int. Cl.
CPC ...
G02F / ;
U.S. Cl.
CPC ...
428-1 ; 349123 ; 349135 ;
Abstract
Aligning films formed on electrode plates of a liquid crystal cell containing an antiferroelectric liquid crystal are each made of a polyimide film represented by the following chemical formula: ##STR1## wherein x.sub.1 and Y.sub.1 are 4,4'-diaminoterphenyl and pyromellitic dianhydride each represented by the following chemical formulas: ##STR2##