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:
Sep. 11, 2001
Filed:
Mar. 27, 2000
Applicant:
Inventors:
Nobuko Komatsuzaki, Tsukuba, JP;
Ryuzi Katoh, Tsukuba, JP;
Yuichiro Himeda, Tsukuba, JP;
Hideki Sugihara, Tsukuba, JP;
Hironori Arakawa, Tsukuba, JP;
Kazuyuki Kasuga, Tsuchiura, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F 1/00 ;
U.S. Cl.
CPC ...
C07F 1/00 ;
Abstract
A ruthenium (II) complex having a dipyridophenazine or tetrapyridophenazine ligand and being represented by the formula (1) or (2) shown in the specification. Upon absorption of light, the complex emits fluorescence for a longer life time in a protic solvent as compared with known analogous compounds.