Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6238186 | Method of manufacturing a blade for fluid machinery | Yoshitake Mibe, Kenji C. Obata, Hajimi Tai, Kazutoshi Takaishi, Masahiko Nakazono | 2001-05-29 |
| 4640664 | Methods of controlling operation of multistage hydraulic machines | Ichiro Yamagata | 1987-02-03 |
| 4538957 | Multi-stage hydraulic machine and control method for multi-stage hydraulic machine | Ichiro Yamagata | 1985-09-03 |
| 4537558 | Multi-stage hydraulic machine and control method for a multi-stage hydraulic machine | Sachio Tsunoda | 1985-08-27 |
| 4502831 | Method of controlling operation of multistage hydraulic machines | Ichiro Yamagata | 1985-03-05 |
| 4412779 | Control method for multi-stage hydraulic machine | Sachio Tsunoda | 1983-11-01 |