Document Type and Number:
Japanese Patent JPH0332849
Kind Code:
B2
Abstract:
The ratio b/a of the width a of the forward end surface 30a of each vane 30 to the interval b between the opposed forward end portions of the respective adjacent vanes 30 is set to be not more than 2.3, whereby distribution density of a high-frequency electric field concentrated in the vicinity of the forward end portions of the vane 30 can be equalized.
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Inventors:
AIGA MASAYUKI
HASHIGUCHI TETSUJI
HASHIGUCHI TETSUJI
Application Number:
JP23567583A
Publication Date:
May 15, 1991
Filing Date:
December 13, 1983
Export Citation:
Assignee:
SANYO ELECTRIC CO
International Classes:
H01J23/22; H01J23/20; H01J25/587
Next Patent: JPH0332850