Kenzo Shimada
16Patents
12h-index
29Co-inventors
78Inventor score
Filing activity: Nov 9, 1989 → Feb 7, 2013
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5910091A | Electric lawn mower | Human Necessities | 82 | Expired |
| US6666008B2 | Electric lawn mower | Human Necessities | 48 | Expired |
| US6655119B2 | Cutter blade for lawn mower | Emerging Cross-Sectional Technologies | 39 | Expired |
| US5048894A | Seat for special vehicle | Performing Operations; Transporting | 32 | Expired |
| US7540132B2 | Electric working machine | Human Necessities | 31 | Expired |
| US6862875B2 | Lawn mower guide and discharge | Human Necessities | 29 | Expired |
| US6751937B2 | Lawn mower discharge shutter | Human Necessities | 25 | Expired |
| US6018937A | Lawn maintenance apparatus having a rotatable, key operated switch | Electricity | 19 | Expired |
| US6705068B2 | Lawn mower | Human Necessities | 15 | Expired |
| US7744503B2 | Enigne-driven work machine | Emerging Cross-Sectional Technologies | 15 | Active |
| US5953890A | Electric lawn mower | Human Necessities | 13 | Expired |
| US9480201B2 | Lawn mower | Emerging Cross-Sectional Technologies | 13 | Active |
| US7249450B2 | Lawn mower | Human Necessities | 9 | Expired |
| US8132396B2 | Shutter mechanism for a lawnmower | Human Necessities | 9 | Active |
| US8015786B2 | Guide member for a lawnmower | Human Necessities | 4 | Active |
| US7343727B2 | Lawn mower exhaust air return | Human Necessities | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.