Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4286932 | Diaphragm pump | Shojiro Nagano, Naohiro Naganuma | 1981-09-01 |
| 4263783 | Exhaust gas purification system for an internal combustion engine | Motohisa Miura, Shojiro Nagano, Naohiro Naganuma | 1981-04-28 |