Process and apparatus for producing powders of metal compound containing oxygen, and the powders produced by the process

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United States of America Patent

PATENT NO 7489857
APP PUB NO 20070183946A1
SERIAL NO

11735732

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Abstract

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An apparatus for producing powders of metal compound containing oxygen comprising a liquid flow controller, a vaporizer and a reactor, which consists essentially of: means for feeding a gas containing a material and oxygen; means for heating the gas from the side surface of the feeding means; means for cooling the gas positioned at the downstream side of the feeding means; and means for receiving the product generated by the reaction. A process and products for producing powders of metal compound containing oxygen comprising the steps of: feeding at least one material selected from a liquid material and a solution material obtained by dissolving solid ingredient in organic solvent via a liquid flow controller into a vaporizer; vaporizing the materials in the vaporizer; adding oxygen; heating; cooling; and crystallizing. The process and the apparatus enable easily mass-producing fine powders of metal compound containing oxygen used as materials for optical crystals, nonlinear crystals or magneto-optical crystals with reasonable production cost.

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Patent Owner(s)

Patent OwnerAddress
JAPAN PIONICS CO LTDMINATO-KU TOKYO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Asano, Akira Kanagawa, JP 40 421
Ishii, Takafumi Kanagawa, JP 44 179
Kiriyama, Koji Kanagawa, JP 7 51
Takamatsu, Yukichi Kanagawa, JP 21 512

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