Microparticle production method and microparticle production apparatus

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United States of America Patent

PATENT NO 12037250
APP PUB NO 20210061665A1
SERIAL NO

17054390

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Abstract

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Provided are a method and apparatus capable of producing fine particles with favorable particle size distribution. In a production method in which feedstock for fine particle production is supplied intermittently into a modulated induction thermal plasma flame, the feedstock is vaporized to form a gas phase mixture, and the mixture is cooled to produce the fine particles: a modulated induction thermal plasma flame in which the temperature state is time-modulated is generated; the modulated induction thermal plasma flame is switched between a high temperature state and a low temperature state; and when the modulated induction thermal plasma flame is in the high temperature state, the feedstock is supplied together with a carrier gas, and when the modulated induction thermal plasma flame is in the low temperature state, supply of the feedstock is suspended and a gas of the same type as the carrier gas is supplied.

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Patent Owner(s)

Patent OwnerAddress
NISSHIN SEIFUN GROUP INCTOKYO 101-8441

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ishisaka, Yousuke Ishikawa, JP 1 1
Kodama, Naoto Ishikawa, JP 6 12
Nakamura, Keitaro Saitama, JP 11 9
Sueyasu, Shiori Saitama, JP 14 6
Tanaka, Yasunori Ishikawa, JP 95 1235
Watanabe, Shu Saitama, JP 36 75

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