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:
May. 24, 2011
Filed:
Mar. 25, 2002
Applicants:
Hideyuki Ikehira, Mukou, JP;
Takahiro Ueoka, Tsukuba, JP;
Shuji Doi, Tsukuba, JP;
Yasuyuki Kurita, Tsukuba, JP;
Inventors:
Hideyuki Ikehira, Mukou, JP;
Takahiro Ueoka, Tsukuba, JP;
Shuji Doi, Tsukuba, JP;
Yasuyuki Kurita, Tsukuba, JP;
Assignee:
Sumitomo Chemical Company, Limited, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 19/38 (2006.01); B32B 27/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A polymeric light emitting substance having a polystyrene reduced number-average molecular weight of from 10to 10wherein this light emitting substance has in the main chain or side chain a metal complex structure showing light emission from the triplet excited state, and said substance can form a light emitting layer by industrially simple application methods such as a spin coat method, inkjet method, printing method and the like.