Document Type and Number:
Japanese Patent JPH025515
Kind Code:
B2
Inventors:
TAKAGI SHUNICHI
KANDA ATSUSHI
KANDA ATSUSHI
Application Number:
JP24781584A
Publication Date:
February 02, 1990
Filing Date:
November 22, 1984
Export Citation:
Assignee:
NGK SPARK PLUG CO
International Classes:
C04B37/02; B23K1/18; B23K33/00
Next Patent: COMPOUND SEMICONDUCTOR VAPOR GROWTH DEVICE