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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 9339871 B1

PDFFull Text
Date of Patent:
May. 17, 2016

Filed:

Jun. 17, 2014

Method for producing spherical particles, having nanometer size, crystalline structure, comprising providing a swirling plasma gas flow

Applicant:

Napra Co., Ltd., Tokyo, JP;

Inventors:

Shigenobu Sekine, Tokyo, JP;

Yurina Sekine, Tokyo, JP;

Assignee:

NAPRA CO., LTD., Tokyo, JP;

Attorney:

Westerman, Hattori, Daniels & Adrian, LLP

Primary Examiner:

Holly Le

Int. Cl.
CPC ...
B22F 9/08 (2006.01); B22F 9/10 (2006.01); B22F 9/06 (2006.01); B22F 9/00 (2006.01); B22F 1/00 (2006.01); C01G 1/00 (2006.01);
U.S. Cl.
CPC ...
B22F 9/06 (2013.01); B22F 1/0085 (2013.01); B22F 9/002 (2013.01); B22F 9/08 (2013.01); B22F 9/082 (2013.01); C01G 1/00 (2013.01); B22F 2009/084 (2013.01); B22F 2009/0844 (2013.01); B22F 2998/00 (2013.01); B22F 2998/10 (2013.01); B22F 2999/00 (2013.01); C01P 2002/60 (2013.01); C01P 2002/90 (2013.01); C01P 2004/32 (2013.01); Y10T 428/12181 (2015.01); Y10T 428/2982 (2015.01);
Abstract

The present invention provides a method for producing nanometer-size spherical particles. The method includes a first step for producing intermediate spherical particles. The intermediate spherical particles include a polycrystalline or single-crystalline region, having a particle size of 1 to 300 μm. The method of the present invention further includes a second step for producing final spherical particles. The second step uses a swirling plasma gas flow having the central axis thereof, the central axis running through an area between an anode and a cathode of a plasma generator. The intermediate spherical particles are discharged along the axis to subject the intermediate spherical particles to a plasma atmosphere of the area to form the final spherical particles.

Find Patent Forward Citations

Sekine, Shigenobu. (2016). Method for producing spherical particles, having nanometer size, crystalline structure, comprising providing a swirling plasma gas flow (U.S. Patent No. 9339871). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9339871

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

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