Issued Patents 1997
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5672977 | Probe apparatus | — | 1997-09-30 |
| 5657659 | Mandrel mill and method of tube rolling by using the same | — | 1997-08-19 |
| 5634740 | Large-depth underground drainage facility and method of running same | Kunio Takada, Kenji Otani, Saburo Maru, Sumio Sudo, Sadashi Tanaka | 1997-06-03 |
| 5624226 | Underground drainage facility, vertical-shaft multi-stage adjustable vane pump, and method of running drainage pump | Saburo Maru, Sumio Sudo | 1997-04-29 |
| 5611873 | High pressure-low pressure single cylinder turbine rotor and method of making | Yoichi Tsuda | 1997-03-18 |
| 5607559 | Method of forming thin film on substrate by reactive DC sputtering | Akira Ishikawa, Tadahiko Saito, Kiyoshi Nakase, Katsuyuki Hatanaka, Hiroshi Inaba | 1997-03-04 |