申请人 |
HITACHI, LTD., TOKIO/TOKYO |
发明人 |
TAKAKU, YUTAKA C/O SAWA WORKS OF HITACHI LTD., IBARAKI;ISHII, TOSHIO C/O SAWA WORKS OF HITACHI LTD., IBARAKI;KASHIWAYA, MINEO C/O SAWA WORKS OF HITACHI LTD, IBARAKI;TANAKA, NAOYUKI C/O MECHAN. ENGIN. RESEARCHLAB., IBARAKI-KEN |