申请人 |
HITACHI, LTD., TOKIO/TOKYO, JP |
发明人 |
HASEGAWA, TAIJI, NAKAMINATO-SHI, IBARAKI 311-12, JP;FUJISAWA, MASAAKI, MITO-SHI, IBARAKI 310, JP;SAKAMOTO, MASAHIDE, KATSUTA-SHI, IBARAKI 312, JP;ISHII, TOSHIO, MITO-SHI, IBARAKI 310, JP;TAKAHASHI, HIDEHARU, HITACHI-SHI, IBARAKI 316, JP |