Pulverization/classification apparatus for manufacturing powder, and method for manufacturing powder using the pulverization/classification apparatus

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United States of America Patent

APP PUB NO 20030178514A1
SERIAL NO

10391898

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Abstract

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A pulverization/classification apparatus including a cylindrical vessel having an inner wall, on a surface of which a layer including a release agent is located; a pulverizer configured to pulverize a material such as toner raw materials in the cylindrical vessel using a compressed air to prepare a particulate material; and a classifier configured to classify the particulate toner material to prepare a powder of the material. Alternatively, the inner wall of the cylindrical vessel has a circumferentially projected portion. A method for manufacturing a powder such as toners using the pulverization/classification apparatus is also provided.

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Patent Owner(s)

Patent OwnerAddress
RICOH COMPANY INC3-6 NAKAMAGOME 1-CHOME OHTA-KU TOKYO 143-8555

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hirata, Shinji Suntoh-gun, JP 34 472
Makino, Nobuyasu Numazu-shi, JP 27 261
Miyamoto, Satoru Mishima-shi, JP 54 806
Takahashi, Mutsumi Numazu-shi, JP 18 185
Tanaka, Tetsuya Suntoh-gun, JP 164 2176

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