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:
Feb. 12, 2008
Filed:
Dec. 12, 2005
Yoshiaki Nagara, Aichi-ken, JP;
Toshiki Iijima, Aichi-ken, JP;
Kazuhito Kawasumi, Aichi-ken, JP;
Kabushiki Kaisha Toyota Jidoshokki, Kariya-shi, JP;
Abstract
Organic EL devices having a light-emitting layer having a fluorescent dopant, a light-emitting layer having a phosphorescent dopant, and a non-light-emitting interface layer provided between an anode and a cathode wherein the light-emitting layer having a fluorescent dopant is provided nearer to the cathode than the light-emitting layer having a phosphorescent dopant and wherein the non-light-emitting interface layer is provided between the light-emitting layer having a fluorescent dopant and the light-emitting layer comprising a phosphorescent dopant.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile