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:
Jan. 11, 2005
Filed:
Dec. 23, 2002
Applicants:
Makoto Kitano, Ibaraki, JP;
Takanobu Noguchi, Ibaraki, JP;
Toshihiro Ohnishi, Tokyo, JP;
Fumi Yamaguchi, Ibaraki, JP;
Takenori Osada, Chiba, JP;
Inventors:
Makoto Kitano, Ibaraki, JP;
Takanobu Noguchi, Ibaraki, JP;
Toshihiro Ohnishi, Tokyo, JP;
Fumi Yamaguchi, Ibaraki, JP;
Takenori Osada, Chiba, JP;
Assignee:
Sumitomo Chemical Company, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 3312 ; C08G 7726 ;
U.S. Cl.
CPC ...
Abstract
A hole transporting polymer having a specific Si-containing repeating unit represented by a formula (1) and specific molecular weight, an excellent hole transporting property, and superior durability and film-forming properties, and the organic EL device, using the bole transporting polymer having excellent light emitting characteristics are disclosed.