| 摘要 |
PROBLEM TO BE SOLVED: To provide a powder material canister capable of discharging a trace quantity of powder material with accuracy. SOLUTION: This powder material canister is provided with a material storage container 10 storing the powder material P and having a discharge port 12, and a screw 20 provided with a screw blade 22 spirally formed around a rotating shaft 21, in the material storage container 10 to form a transfer space TR by the screw blade 22. The powder material P in the transfer space R is transferred and discharged through the discharge port 12 by the rotating feed operation of the screw 20. The screw 20 is constituted to enlarge the transfer space TR on the tip side in the transfer direction of the powder material P. COPYRIGHT: (C)2004,JPO
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