申请人 |
HITACHI, LTD., TOKIO/TOKYO, JP;TAGASANGYO, LTD., HITACHI, IBARAKI, JP |
发明人 |
IIDA, AKIRA, HITACHI-SHI IBARAKI 316, JP;IWAO, AKIRA, IBARAKI-SHI IBARAKI 319-15, JP;ISHII, YOSHITARO, HITACHI-SHI IBARAKI 316, JP;SUZUKUI, NARUHIKO, HITACHI-SHI IBARAKI 316, JP;HIRUTA, YASUYUKI, HITACHI-SHI IBARAKI 316, JP |