Document Type and Number:
Japanese Patent JPH0159623
Kind Code:
B2
Inventors:
YASUMOTO MASAAKI
ISHIHARA TSUTOMU
ENOMOTO TADAYOSHI
ISHIHARA TSUTOMU
ENOMOTO TADAYOSHI
Application Number:
JP18879881A
Publication Date:
December 19, 1989
Filing Date:
November 25, 1981
Export Citation:
Assignee:
NIPPON ELECTRIC CO
International Classes:
H03K4/56; G06G7/186
Next Patent: JPH0159624