Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6354763 | Pumping plant | Seiichi Ishikawa, Tsuyoshi Yoshida, Saburou Maru, Stefan Emsmann, Hans P. Pitz | 2002-03-12 |
| 5154570 | Vertical shaft pump | Yoshihiko Yoshikawa, Sumio Sudo | 1992-10-13 |
| 4190396 | Sodium turbine pump | Shunzo Tomioka, Masaaki Nakano, Akira Suzuki | 1980-02-26 |