Method of grinding powder

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United States of America Patent

PATENT NO 9327288
APP PUB NO 20130341438A1
SERIAL NO

13993148

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method of grinding a powder, which grinds a powder using an air stream generated inside a grinding chamber in a jet mill in which there is no place to retain powder inside the grinding chamber is provided. The method includes: a mixing step of mixing an auxiliary agent with the powder; a heating step of heating a high pressure gas; a supplying step of supplying the high pressure gas heated in the heating step into the grinding chamber; an injecting step of injecting the powder in which the auxiliary agent is mixed in the mixing step into the grinding chamber in a predetermined amount in which the concentration of the auxiliary agent inside the grinding chamber is lower than an ignition concentration; and a grinding step of grinding the powder using the air stream generated inside the grinding chamber by the high pressure gas supplied in the supplying step.

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Patent Owner(s)

Patent OwnerAddress
NISSHIN ENGINEERING INC14-1 NIHONBASHI-KOAMI-CHO CHUO-KU TOKYO 103-8544

International Classification(s)

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  • 2011 Application Filing Year
  • B02C Class
  • 418 Applications Filed
  • 317 Patents Issued To-Date
  • 75.84 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances20112012201320142015201620172018201920200255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kozawa, Kazumi Fujimino, JP 12 64
Tominaga, Harutoshi Saitama, JP 2 7

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  • 0 Citation Count
  • B02C Class
  • 0 % this patent is cited more than
  • 9 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges871881621101 - 1011 - 2021 - 3041 - 5051 - 600102030405060708090100110120130140150160170180190200

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