申请人 |
HITACHI, LTD., TOKIO/TOKYO, JP |
发明人 |
ARAI, NOBUKATSU, USHIKU-SHI, JP;SEKINE, YOSHIHITO, CHIYODAMURA NIIHAR-GUN IBARAKI-KEN, JP;OSAWA, TADAO, KATSUTA-SHI, JP;TOKUDA, HIROATSU, KATSUTA-SHI, JP;USUI, TOSHIFUMI, KATSUTA-SHI, JP;TSUTSUI, MITSUKUNI, NAKA-GUN IBARAKI-KEN, JP |