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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.:

US 8871180 B1

PDFFull Text
Expired
Date of Patent:
Oct. 28, 2014

Filed:

Sep. 04, 2007

Organic-inorganic hybrid particles containing contrast agent

Applicants:

Kazunori Kataoka, Tokyo, JP;

Michiaki Kumagai, Tokyo, JP;

Keisuke Aikawa, Misato, JP;

Inventors:

Kazunori Kataoka, Tokyo, JP;

Michiaki Kumagai, Tokyo, JP;

Keisuke Aikawa, Misato, JP;

Assignee:

Japan Science and Technology Agency, Saitama, JP;

Attorney:

Wenderoth, Lind & Ponack, L.L.P.

Primary Examiner:

Michael G Hartley

Assistant Examiner:

Lance Rider

Int. Cl.
CPC ...
A61K 49/00 (2006.01); B32B 7/02 (2006.01); B32B 9/00 (2006.01); C08L 53/00 (2006.01); A61K 49/12 (2006.01); A61K 49/18 (2006.01); A61K 49/10 (2006.01); C08K 3/26 (2006.01); C08K 3/32 (2006.01);
U.S. Cl.
CPC ...
A61K 49/1824 (2013.01); C08K 3/26 (2013.01); C08L 53/00 (2013.01); C08K 3/32 (2013.01); A61K 49/126 (2013.01); A61K 49/105 (2013.01);
Abstract

This invention provides organic-inorganic hybrid particles containing as the essential components a block copolymer comprising an uncharged hydrophilic polymer chain segment and a polymer chain segment containing a repeated structural unit having a carboxylate ion group at its side chain; calcium ion (Ca), phosphate ion (PO) or carbonate ion (CO), or a mixture of these anions; and a contrast agent. The particles provide, in particular, carriers for stably delivering an MRI contrast agent to a target site.

Find Patent Forward Citations

Kataoka, Kazunori. (2014). Organic-inorganic hybrid particles containing contrast agent (U.S. Patent No. 8871180). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8871180

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

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