Issued Patents 1994
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5360289 | Drainage water pumping station and method for operating the same | Kunio Takada, Sadashi Tanaka | 1994-11-01 |
| 5346316 | Bearing unit, drainage pump and hydraulic turbine each incorporating the bearing unit | Ryoji Okada, Kooju Aizawa, Masayuki Yamada, Kunio Takada, Mitsuaki Haneda +1 more | 1994-09-13 |
| 5300873 | Motor control apparatus | Fumihiko Ito | 1994-04-05 |
| 5287875 | Draining pump system and drainage preference operating method therefor | — | 1994-02-22 |
| 5287047 | Motor drive circuit and motor drive system using the same | Yorinobu Murayama | 1994-02-15 |