申请人 |
NIPPON STEEL CORP., TOKIO/TOKYO, JP |
发明人 |
TAKAHASHI, NOBUYUKI R.& D.LAB.III NIPPON STEEL, KITA KYUSHU-SHI FUKUOKA, JP;SUGA, YOZO R.& D. LAB.III7NIPPON STEEL, KITA KYUSHU-SHI FUKUOKA, JP;KUROKI, KATSURO R.& D. LAB.III NIPPON STEEL, KITA KYUSHU-SHI FUKUOKA, JP |