申请人 |
HITACHI, LTD., TOKIO/TOKYO, JP |
发明人 |
MAEDA, YOSHIHITO, MITO-SHI, IBARAKI 310, JP;IKUTA, ISAO, IWAKI-SHI, FUKUSHIMA 973, JP;NAGAI, MASAICHI, HITACHI-SHI, IBARAKI 316, JP;KATO, YOSHIMI, TAKAHAGI-SHI, IBARAKI 318, JP;ANDOH, HISASHI, HITACHI-SHI, IBARAKI 315, JP;TSUKAMOTO, NOBUO, IBARAKI 312, JP |