Yasuhiro Niimura
5Patents
4h-index
12Co-inventors
46Inventor score
Filing activity: Sep 12, 1991 → Feb 18, 1999
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6332925A | Evacuation system | Emerging Cross-Sectional Technologies | 20 | Expired |
| US5173041A | Multistage vacuum pump with interstage solid material collector and cooling coils | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US6251192A | Vacuum exhaust system | Chemistry; Metallurgy | 10 | Expired |
| US5312192A | Bearing lubricating structure for rotary machinery | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US5746790A | Trap for collecting solid | Performing Operations; Transporting | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.