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:
Dec. 31, 2013
Filed:
Feb. 20, 2009
Masahiko Toba, Chiba, JP;
Tsuyoshi Kato, Chiba, JP;
Masahiko Toba, Chiba, JP;
Tsuyoshi Kato, Chiba, JP;
Showa Denko K.K., Tokyo, JP;
Abstract
The present invention provides a polymer material capable of preparing organic EL elements having low driving voltage and high durability. The polymer compound of the present invention includes a constituting unit derived from a monomer represented by the formula (1); (in the formula (1), each of A's is independently a condensed polycyclic aromatic group optionally having a heteroatom as a ring-constituting atom; the condensed polycyclic aromatic group links to Aat the meta position to the bonding position of the ring represented by the following formula;
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile