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. 15, 2010
Filed:
Jul. 07, 2005
Tetsuji Moriguchi, Kitakyushu, JP;
Tetsuji Moriguchi, Kitakyushu, JP;
National University Corporation Kyushu Institute of Technology, Kitakyushu-Shi, JP;
Abstract
A novel europium-diketone chelate compound which steadily emits red light by ultraviolet irradiation and a fluorescent material using the same are provided. The europium-diketone chelate compound is represented by the following formula (1). The fluorescent material contains the europium-diketone chelate compound. wherein Xis a heterocyclic cationic polymer, a cationic oligomer or a cationic heteroaromatic compound containing a substituent, Ris an aromatic compound group or a heterocyclic compound group containing a plurality of double bonds and Z is a hydrogen atom or a substituent of an aliphatic or alicyclic compound.