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:
Sep. 22, 2015

Filed:

Feb. 19, 2013
Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventors:

Tatsuki Fukui, Yokohama, JP;

Fumiko Tomatsu, Yokohama, JP;

Kengo Kanazaki, Kyoto, JP;

Satoshi Yuasa, Yokohama, JP;

Mayuko Kishi, Machida, JP;

Daisuke Sasaguri, Yokohama, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K 49/22 (2006.01); A61K 49/00 (2006.01);
U.S. Cl.
CPC ...
A61K 49/225 (2013.01); A61K 49/0032 (2013.01); A61K 49/0093 (2013.01);
Abstract

Provided is a particle which can stably hold a dye in itself even in an aqueous solution such as serum, in order to solve such a problem of a particle containing ICG, which has been conventionally used in a contrast agent or the like, that the ICG is a dye having a hydrophilic functional group and hence the ICG leaks out of the particle in an aqueous solution such as serum. More specifically, provided is a particle including a hydrophobic dye having a cyanine structure, in which the hydrophobic dye is represented by the following chemical formula (1).


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