Document Type and Number:
Japanese Patent JPH0423286
Kind Code:
B2
Inventors:
NAKAMURA SHOZO
MATSUSHIMA TOKUNORI
IMAIZUMI TATSUO
MATSUSHIMA TOKUNORI
IMAIZUMI TATSUO
Application Number:
JP16260680A
Publication Date:
April 21, 1992
Filing Date:
November 20, 1980
Export Citation:
Assignee:
HITACHI LTD
International Classes:
F22D1/00; G05D9/12
Next Patent: JPH0423287