Manabu Kurotobi
4Patents
3h-index
7Co-inventors
36Inventor score
Filing activity: Jun 16, 1993 → May 20, 1997
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5960835A | Cast iron pipe surface-modified for corrosion prevention and method of modifying the cast iron pipe surface for corrosion prevention | Emerging Cross-Sectional Technologies | 7 | Expired |
| US6016948A | Method of forming pipe spigot ridge | Performing Operations; Transporting | 3 | Expired |
| US5346182A | Teeming trough | Performing Operations; Transporting | 3 | Expired |
| US5513794A | Method for fixing stopper ring to pipe spigot | Emerging Cross-Sectional Technologies | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.