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:
Aug. 10, 2010
Filed:
Jun. 23, 2004
Applicants:
Takuji Yoshimoto, Funabashi, JP;
Tomohisa Yamada, Funabashi, JP;
Inventors:
Takuji Yoshimoto, Funabashi, JP;
Tomohisa Yamada, Funabashi, JP;
Assignee:
Nissan Chemical Industries, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B 9/00 (2006.01); G02B 5/30 (2006.01); C07D 319/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
By using a charge-transporting thin film which is made of charge-transporting varnish containing, as an electron-acceptor material, a 1,4-benzodioxane sulfonic acid compound represented by the formula (1) below especially in an OLED device or a PLED device, there can be realized excellent EL device characteristics such as low driving voltage, high luminous efficiency and long life.