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. 16, 2009
Filed:
Aug. 17, 2005
Applicants:
Mitsuru Eida, Sodegaura, JP;
Kazuhiro Tomoike, Sodegaura, JP;
Inventors:
Mitsuru Eida, Sodegaura, JP;
Kazuhiro Tomoike, Sodegaura, JP;
Assignee:
Idemitsu Kosan Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 33/04 (2006.01); H05B 33/12 (2006.01); H01J 1/62 (2006.01);
U.S. Cl.
CPC ...
Abstract
An organic EL display device having a supporting substrate; and an organic EL element including an organic luminescent medium sandwiched between a lower electrode and an upper electrode thereon. Various relationships are indicted among the refractive indices of the various elements of the organic EL display device. In such arrangement, a large quantity of EL emission can be taken to the outside.
Eida, Mitsuru. (2009). Organic el display device having certain relationships among constituent element refractive indices (U.S. Patent No. 7548020). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7548020
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile