| 6540482 |
Turbo-type machines |
Kouichi Irie, Tomoyoshi Okamura, Junichi Kurokawa |
2003-04-01 |
| 6527509 |
Turbo machines |
Junichi Kurokawa, Hitoharu Kimura, Tomoyshi Okamura, Takahide Nagahara, Akira Manabe +1 more |
2003-03-04 |
| 6302643 |
Turbo machines |
Junichi Kurokawa, Hitoharu Kimura, Tomoyoshi Okamura, Takahide Nagahara, Akira Manabe +1 more |
2001-10-16 |
| 6102618 |
Large-depth underground drainage facility and method of running same |
Kunio Takada, Kenji Otani, Masayuki Yamada, Saburo Maru, Sadashi Tanaka |
2000-08-15 |
| 5909982 |
Large-depth underground drainage facility and method of running same |
Kunio Takada, Kenji Otani, Masayuki Yamada, Saburo Maru, Sadashi Tanaka |
1999-06-08 |
| 5733065 |
Underground drainage facility, vertical-shaft multi-stage adjustable vane pump, and method of running drainage pump |
Masayuki Yamada, Saburo Maru |
1998-03-31 |
| 5634740 |
Large-depth underground drainage facility and method of running same |
Kunio Takada, Kenji Otani, Masayuki Yamada, Saburo Maru, Sadashi Tanaka |
1997-06-03 |
| 5624226 |
Underground drainage facility, vertical-shaft multi-stage adjustable vane pump, and method of running drainage pump |
Masayuki Yamada, Saburo Maru |
1997-04-29 |
| 5487621 |
Large-depth underground drainage facility and method of running same |
Kunio Takada, Kenji Otani, Masayuki Yamada, Saburo Maru, Sadashi Tanaka |
1996-01-30 |
| 5360290 |
Underground drainage facility, vertical-shaft multi-stage adjustable vane pump, and method of running drainage pump |
Masayuki Yamada, Saburo Maru |
1994-11-01 |
| 5154570 |
Vertical shaft pump |
Yoshihiko Yoshikawa, Shizuichi Sakamoto |
1992-10-13 |
| 4362463 |
Movable blade pump |
Hiromichi Anan, Masayuki Yamada |
1982-12-07 |