Document Type and Number:
Japanese Patent JPH0210208
Kind Code:
B2
Inventors:
KATO SHUNSAKU
NOBUKAWA HISASHI
NOBUKAWA HISASHI
Application Number:
JP10027687A
Publication Date:
March 07, 1990
Filing Date:
April 23, 1987
Export Citation:
Assignee:
KOGYO GIJUTSUIN
International Classes:
B01D15/00; C02F1/28; C22B60/02
Next Patent: JPH0210209