| 申请人 |
NIPPON STEEL CORPORATION;DAI-ICHI HIGH FREQUENCY CO., LTD;JGC CORPORATION |
发明人 |
NAOI, H. NIPPON STEEL CORP., R&D LABORATORIES-II;INOUE, Y. NIPPON STEEL CORP., R&D LABORATORIES-II;NAGASAKA, TETSUO NIPPON STEEL CORPORATION;MATSUBARA, Y. DAI-ICHI HIGH FREQUENCY CO., LTD.;TAKAGISHI, M. DAI-ICHI HIGH FREQUENCY CO., LTD.;AKIZAWA, SEIICHI |
