US Patent No: 4,940,523

Number of patents in Portfolio can not be more than 2000

Process and apparatus for coating fine powders

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Abstract

There is disclosed a process for coating fine powder of a metal, a ceramic, a plastic or an organic pigment with a metal or a ceramic comprising: (a) dispersing particles of said fine powder into primary particles by fluid jet mill treatment in an inert atmosphere; (b) heating the dispersed fine powder in an inert atmosphere under reduced pressure; (c) placing the heated powder in an evacuable rotary barrel sputtering chamber, forming a fluidized bed by rotating the barrel at a low speed and coating said fluidized powder by sputtering as the barrel is being rotated. By this process, fine powders of metals, ceramics and plastics having a particle diameter of 0.1-10 .mu.m can be uniformly coated by a metal or a ceramic. There is also provided an apparatus therefor.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
NISSHIN STEEL CO., LTD.TOKYO227

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Takeshima, Eiki Ichikawa, JP 10 91

Cited Art

Patent Info (Count) # Cites Year
 
ENERGY, UNITED STATES DEPARTMENT OF (1)
4,302,311 Sputter coating of microspherical substrates by levitation 11 1979

Patent Citation Ranking

Forward Cites

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