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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 8999225 B1

PDFFull Text
Date of Patent:
Apr. 07, 2015

Filed:

Nov. 09, 2010

Method for producing hollow nanoparticle comprising deposition on/in an ionic liquid, hollow nanoparticle, and dispersion liquid thereof

Applicants:

Tsukasa Torimoto, Nagoya, JP;

Ken-ichi Okazaki, Nagoya, JP;

Toshimasa Suzuki, Gifu, JP;

Yousuke Tomita, Nagasaki, JP;

Susumu Kuwabata, Ibaraki, JP;

Inventors:

Tsukasa Torimoto, Nagoya, JP;

Ken-ichi Okazaki, Nagoya, JP;

Toshimasa Suzuki, Gifu, JP;

Yousuke Tomita, Nagasaki, JP;

Susumu Kuwabata, Ibaraki, JP;

Assignees:

National University Corporation Nagoya University, Nagoya, JP;

Osaka University, Osaka, JP;

Attorney:

Oliff PLC

Primary Examiner:

Holly Le

Int. Cl.
CPC ...
B22F 9/06 (2006.01); B22F 9/16 (2006.01); B81C 99/00 (2010.01); B01J 13/02 (2006.01); B01J 31/02 (2006.01); B01J 35/00 (2006.01); B01J 35/08 (2006.01); B01J 37/12 (2006.01); B22F 1/00 (2006.01); B22F 9/02 (2006.01); B82Y 30/00 (2011.01); B82Y 40/00 (2011.01); C01B 13/32 (2006.01); C01G 3/02 (2006.01); C01G 15/00 (2006.01); C04B 20/00 (2006.01); B22F 9/08 (2006.01);
U.S. Cl.
CPC ...
B81C 99/0045 (2013.01); B22F 2009/0844 (2013.01); B01J 13/02 (2013.01); B01J 31/0278 (2013.01); B01J 35/0013 (2013.01); B01J 35/08 (2013.01); B01J 37/12 (2013.01); B22F 1/0018 (2013.01); B22F 1/0051 (2013.01); B22F 9/02 (2013.01); B81B 2201/0235 (2013.01); B82Y 30/00 (2013.01); B82Y 40/00 (2013.01); C01B 13/322 (2013.01); C01G 3/02 (2013.01); C01G 15/00 (2013.01); C01P 2002/72 (2013.01); C01P 2002/82 (2013.01); C01P 2002/84 (2013.01); C01P 2004/04 (2013.01); C01P 2004/34 (2013.01); C01P 2004/52 (2013.01); C01P 2004/64 (2013.01); C04B 20/0036 (2013.01);
Abstract

First, an ionic liquid is placed on a glass slide, which is then installed in an evaporation apparatus, and a metal (for example, indium) is mounted as a target material at a position facing the ionic liquid, followed by sputter deposition of the metal. After sputtering, the ionic liquid containing nanoparticles dispersed therein is recovered. The nanoparticles are solid nanoparticles. Next, the ionic liquid containing the solid nanoparticles dispersed therein is placed in a test tube and then oxidized by heating in air at 250° C. for 1 hour. As a result, hollow nanoparticles having cavities formed in core portions of the solid nanoparticles are produced.

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