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:
Apr. 18, 2000
Filed:
Mar. 11, 1999
Applicant:
Inventors:
Manabu Uchida, Kanagawaken, JP;
Takenori Izumizawa, Kanagawaken, JP;
Kenji Furukawa, Kanagawaken, JP;
Kohei Tamao, Kyotofu, JP;
Shigehiro Yamaguchi, Kyotofu, JP;
Assignee:
Chisso Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428446 ; 313504 ; 428917 ; 556404 ; 556406 ; 556465 ; 556476 ; 556477 ;
Abstract
An electroluminescence element (EL) obtained by using a silacyclopentadiene derivation expressed by the general formula (I) and the derivative are provided. ##STR1## (wherein X and Y are independently hydrocarbon radicals with from 1 to 6 atoms and R.sub.1 to R.sub.4 are hydrogen, halogens, alkyl radicals with from 1 to 6 carbon atoms, or a condensed (un)substituted ring if being adjacent).