申请人 |
NGK INSULATORS, LTD., NAGOYA, AICHI, JP;INSTITUTE OF TECHNOLOGY PRECISION ELECTRICAL DISCHARGE WORK'S, KAWASAKI, KANAGAWA, JP |
发明人 |
SUZUKI, KAZUO, INAZAWA CITY, AICHI PREFECTURE, JP;FUTAMURA, SHOJI, C/O INSTITUTE OF TECHN. PRECISION, SAIWA-KU, KAWASAKI-CITY, KANAGAWA PREF., JP |