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.

Date of Patent:
Apr. 21, 2026

Filed:

Dec. 23, 2020
Applicant:

National University Corporation Hokkaido University, Sapporo, JP;

Inventors:

Yuichi Kitagawa, Sapporo, JP;

Ayu Naito, Sapporo, JP;

Yasuchika Hasegawa, Sapporo, JP;

Koji Fushimi, Sapporo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 11/06 (2006.01); C07F 9/53 (2006.01);
U.S. Cl.
CPC ...
C09K 11/06 (2013.01); C07F 9/5345 (2013.01); C09K 2211/1007 (2013.01); C09K 2211/1011 (2013.01); C09K 2211/1014 (2013.01); C09K 2211/182 (2013.01);
Abstract

Disclosed is a rare earth complex including: one or a plurality of rare earth ions; and a ligand forming a coordinate bond with the rare earth ions. At least a part of the rare earth ions are at least one kind selected from the group consisting of lutetium(III) ions, yttrium(III) ions, and gadolinium(III) ions. The ligand includes a residue obtained by removing one or more hydrogen atoms from a fluorescent condensed polycyclic aromatic compound.


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Kitagawa, Yuichi. (2026). Rare earth complex (U.S. Patent No. 12606738). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12606738

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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