logo

For the Inventor, By the Inventor

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 12752022 B1

PDFFull Text
Date of Patent:
Oct. 06, 2026

Filed:

Mar. 24, 2023

Single-polymer particles, active molecular complex, method for producing single-polymer particles, method for measuring tumor size, method for measuring fine structure within tumor, method for imaging biological tissue, drug delivery system, and contrast agent kit

Applicant:

National Institutes for Quantum Science and Technology, Chiba, JP;

Inventors:

Kensuke Osada, Chiba, JP;

Kazuaki Rikiyama, Chiba, JP;

Akira Sumiyoshi, Chiba, JP;

Ichio Aoki, Chiba, JP;

Kanjiro Miyata, Tokyo, JP;

Mitsuru Naito, Tokyo, JP;

Yusuke Watanuki, Tokyo, JP;

Assignee:

NATIONAL INSTITUTES FOR QUANTUM SCIENCE AND TECHNOLOGY, Chiba, JP;

Attorneys:

Casimir Jones, S.C.

Robert A. Goetz

Primary Examiner:

Gerald Johnson

Int. Cl.
CPC ...
A61K 49/12 (2006.01); G01R 33/28 (2006.01);
U.S. Cl.
CPC ...
A61K 49/126 (2013.01); G01R 33/282 (2013.01);
Abstract

An embodiment of the present invention has an object of providing single-macromolecule particles each having a more accurately controlled hydrodynamic diameter, an active molecular complex, a method for producing the single-macromolecule particles, and a method for imaging biological tissue. In order to attain the object, provided are single-macromolecule particles characterized by each being formed of a single macromolecule and by having a molecular weight distribution M/Mof not more than 1.5. This makes it possible to obtain particles each having an accurately controlled hydrodynamic diameter. The single macromolecule is preferably a structure consisting of a single hydrophilic macromolecule A or a structure in which one or more side chains are bonded to a main chain, the main chain being the single hydrophilic macromolecule A, each of the one or more side chains being a hydrophilic macromolecule B.

Find Patent Forward Citations

Osada, Kensuke. (2026). Single-polymer particles, active molecular complex, method for producing single-polymer particles, method for measuring tumor size, method for measuring fine structure within tumor, method for imaging biological tissue, drug delivery system, and contrast agent kit (U.S. Patent No. 12752022). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12752022

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

Loading…